A Guide For Dual Citizens, Americans Abroad, And U.S. Residents With Heirs Overseas

Plenty of families live comfortably across two or three countries. Their estate plans usually don’t. Most were drafted with a single legal system in mind, and the gaps tend to show up only after someone dies. A surviving spouse learns the marital deduction she was counting on doesn’t apply. A child living overseas inherits an account that comes with U.S. filing obligations nobody mentioned. An executor discovers that a second will, signed abroad, quietly revoked the first.

Saving estate tax matters, but it isn’t the whole job. A good plan gets the right assets to the right people, in a form they can actually own and manage, without unnecessary tax, missed filings, or a clash between legal systems. If a plan cuts tax in one country but leaves an heir unable to get into the account, it hasn’t worked.

It helps to break the problem into three questions.

• Who has the right to tax the transfer?
• Whose law decides who inherits?
• What happens once the beneficiary receives the property and owns it going forward?

These overlap, but they are not the same question. U.S. estate tax depends largely on the deceased person’s citizenship and domicile. Succession rules can hinge on different connections entirely. The recipient’s own status also brings a separate set of income tax and reporting consequences. 

This guide covers the U.S. federal rules in effect for 2026 and the decisions that need input from advisers in other countries. It’s written for dual citizens, Americans living abroad, noncitizens living in the United States, mixed-nationality couples, and U.S. families leaving assets to heirs overseas. Foreign tax and succession outcomes always need a country-by-country analysis. No single international estate plan works everywhere.

1. Start With A Map Of Your Family And Your Assets

Before anyone drafts a trust, take inventory. You need each person’s legal connections and each asset’s ownership details. A list of passports isn’t enough, and the country printed on a bank statement doesn’t necessarily tell you where an asset is located for estate tax purposes.

For each spouse, child, beneficiary, executor, and proposed trustee, note the following.

• Every citizenship they hold, including U.S. citizenship held by someone who has never lived in the United States
• Where they live now, their immigration status, and any significant past moves
• Facts that bear on domicile, such as where they consider their permanent home and where they expect to stay
• Whether they have ever given up U.S. citizenship or ended long-term green card status
• Where they expect to be living when they inherit
• Whether they are realistically able and willing to serve as executor, trustee, or financial decision-maker

For each asset, record the legal owner, how it was acquired, any co-owners, beneficiary designations, approximate value, basis records, and governing documents. Keep property you own directly separate from property held through a company or trust. Don’t forget retirement accounts, insurance, private businesses, foreign accounts, real estate, loans, and valuable personal items.

U.S. estate tax treats a citizen’s or domiciliary’s worldwide estate very differently from a nonresident noncitizen’s U.S.-situated property. For a nonresident noncitizen, shares of a U.S. corporation are generally U.S.-situated even when they sit in a foreign brokerage account. Your inventory needs to show both where the account is and what’s actually in it. 

The finished map should trace each asset all the way from today’s owner to its final beneficiary. For example, an account you own individually might pass to your spouse, then into a continuing trust, and eventually to children living in different countries. Check every step. A structure that works for the first recipient may not work for the next generation.

2. Citizenship, Income Tax Residence, And Estate Tax Domicile Are Three Different Things

One of the most costly mistakes in cross-border planning is assuming that your income tax residence also settles your estate tax residence. It doesn’t. For U.S. estate tax, a “resident” is generally someone domiciled in the United States at death. The regulations describe domicile as living somewhere with no definite present intention of leaving later. Where you actually live and what you intend both count. 

So a green card, a day count, or the type of income tax return you file is not a complete estate tax answer. Immigration records are important evidence, but the real question is domicile. Document your actual circumstances rather than relying on labels like “temporary resident,” “expat,” or “permanent resident.”

U.S. Citizens Living Abroad

Moving overseas doesn’t, by itself, take your foreign property out of your U.S. gross estate. The worldwide inclusion rules reach foreign real estate and other covered property. A second citizenship doesn’t switch off your U.S. citizenship either. A dual citizen living permanently abroad still needs a U.S. estate tax review. 

Take an American who has lived overseas for most of her adult life, owns a home there, and keeps only a modest U.S. investment account. Her U.S. review starts with her worldwide estate, not just the U.S. account. Whether any tax is actually owed is a separate question that depends on exclusions, deductions, prior taxable gifts, and any available treaty relief.

Noncitizens Living In The United States

A noncitizen domiciled in the United States is generally taxed on a worldwide basis, even without a U.S. passport. A noncitizen who isn’t domiciled here falls under a separate nonresident framework. Pin down which one applies before relying on an exemption or deciding how assets should be owned.

Keep A Record That Reflects Your Real Intentions

A useful domicile file explains major moves, homeownership, where family members live, business responsibilities, immigration plans, and what your legal documents say. The point is an honest, consistent record of your actual life, not a checklist designed to manufacture a result. Revisit it after retirement, a major relocation, or any change in where you consider home.

3. What The 2026 Exclusion Does, And Doesn’t, Solve

For 2026, the federal basic estate and gift tax exclusion is $15 million per person, and current law provides for inflation adjustments after 2026. The generation-skipping transfer (GST) tax exemption is also $15 million for 2026. The annual gift tax exclusion is $19,000 per recipient for qualifying present-interest gifts. 

These numbers do different jobs. The lifetime exclusion is not one allowance for gifts plus a fresh, separate allowance at death. Taxable gifts you make during life count against it. For a U.S. citizen or domiciliary who dies in 2026, Form 706 is generally required when the gross estate plus adjusted taxable gifts and the specified historical exemption exceeds $15 million. A return is also needed to elect portability, even if the estate is below the normal filing threshold. 

The annual exclusion works per recipient, per year, not across your lifetime. A gift above the annual limit doesn’t automatically mean a tax bill, because an available lifetime exclusion may cover it. But a reportable gift can still require a gift tax return even when no tax is due. Check the filing rules directly instead of assuming that no payment means no return. 

A Bigger Exclusion Is Not A Cross-Border Plan

Estates below the federal threshold still face real questions. Does the surviving spouse qualify for the marital deduction? Can the beneficiary hold the intended assets? Will the trust stay domestic for U.S. tax purposes? What will a U.S. heir need to know about a foreign inheritance? Which country will administer the property?

Federal exclusion amounts also say nothing about state or foreign tax. State death taxes are handled separately within the federal return’s deduction rules, and foreign death taxes have their own credit provisions. No federal tax does not mean no tax anywhere. 

It helps to separate three different outcomes. No federal estate tax. No federal estate tax return. No other filing or tax obligation at all. These are not the same, so ask your advisers which one actually applies to you.

4. Mixed-Nationality Couples Need A Deliberate Marital Plan

For estate tax, what matters is the surviving spouse’s citizenship, not simply whether they live in the United States. If the surviving spouse isn’t a U.S. citizen, the ordinary estate tax marital deduction is generally unavailable unless an exception, a qualifying trust, or a treaty provides relief. 

That’s why a standard will leaving everything outright to a spouse needs a close look when the spouse isn’t a citizen. A green card does not satisfy the citizenship requirement. Having a noncitizen spouse doesn’t mean every estate owes tax, though. The deceased spouse’s available exclusion and other deductions still count.

Lifetime Gifts To A Noncitizen Spouse

The gift tax marital deduction is also generally unavailable for gifts to a noncitizen spouse. Instead, for 2026 there is a special annual exclusion of $194,000 for qualifying gifts to that spouse. It replaces the ordinary $19,000 exclusion for those gifts rather than adding to it. Gifts of future interests don’t qualify.

Regular lifetime gifts can help balance ownership and give the noncitizen spouse resources of their own. But look beyond the U.S. gift tax treatment. The donor’s basis, the recipient’s future estate tax position, the receiving country’s rules, and who controls the property all belong in the decision.

Also keep in mind that adding your spouse as a signer on an account is not the same as making a completed gift. Access doesn’t document the ownership result your estate plan depends on. Get an ownership analysis before retitling or moving substantial assets.

Joint Ownership Doesn’t Automatically Mean A 50/50 Split

When the surviving spouse isn’t a citizen, the special rule that includes only half of a qualifying spousal joint interest generally doesn’t apply. Contribution-based rules take over instead, which means you need evidence of what each owner put in and where that money came from. 

Joint ownership can make access easier while making the tax analysis harder. Keep purchase records, mortgage records, and proof of later contributions. The deed alone may not show how much is excluded from the first spouse’s gross estate.

Plan Around Naturalization, Don’t Assume It

There is a statutory exception if the surviving spouse becomes a U.S. citizen before the estate tax return is filed and has been a continuous U.S. resident from the date of death until citizenship. Both conditions actually have to be met. A pending application isn’t citizenship, and the family shouldn’t build its cash plan around an expected approval date. 

5. Consider A QDOT When Deferral Fits The Family

A qualified domestic trust, or QDOT, is the main statutory route to an estate tax marital deduction for property going to a noncitizen surviving spouse. Think of it as a way to defer estate tax, not to eliminate it. 

A QDOT generally needs at least one trustee who is an individual U.S. citizen or a domestic corporation. That U.S. trustee must have the right to withhold QDOT tax from distributions other than income. The trust also has to meet collection-security requirements, and the executor has to elect QDOT treatment. 

The trust also has to satisfy the marital interest requirements on their own terms. QDOT qualification and the ordinary marital deduction rules are separate parts of the analysis. A trust meant to qualify as qualified terminable interest property, for example, must meet those requirements too. 

Know The Distribution Rules Before Funding

Principal distributions to the spouse during life generally trigger the special QDOT estate tax. Distributions that qualify as income under the QDOT rules are exempt from that tax, as are qualifying hardship distributions. Capital gains generally do not count as income for this purpose. Whatever remains in the trust at the spouse’s death is generally subject to QDOT tax as well. Escaping QDOT estate tax does not make a distribution income-tax-free; the usual income tax rules still apply.

The hardship exception is narrow. It covers an immediate, substantial need for health, maintenance, education, or support, and generally is not available if the spouse can meet that need from other reasonably available resources.

This matters most when the family’s wealth is largely illiquid or the spouse expects to need significant principal. Before funding, put together a realistic spending and cash plan. Know which resources sit outside the QDOT and which expenses would force a principal distribution from it.

Security Rules Affect Who Can Serve And What Goes In

For QDOTs over $2 million, the regulations generally require a qualifying bank trustee or a prescribed bond or letter of credit. QDOTs of $2 million or less generally must keep foreign real estate to no more than 35% of trust value, measured under the regulations, or use the larger-trust security options. Aggregation and special valuation rules apply.

These rules can affect whether your chosen trustee will accept the role and whether it’s practical to put particular foreign property into the trust. Work this out while you can still adjust the plan. Don’t count on your executor finding a willing institution after the fact.

Make The Election And Fund On Time

The QDOT election is made on the estate tax return and can’t be undone. The regulations generally place it on the last timely filed return, including extensions, or on the first late return. It can’t be made on a return filed more than one year after the due date, including extensions. Property passing outright can sometimes be transferred or irrevocably assigned to a QDOT before the return is filed. Those rules can rescue a deduction, but they’re no reason to delay a planned election. 

6. Preserve Portability, And Know Its Limits

Portability lets a surviving spouse use the deceased spouse’s unused estate and gift exclusion, as long as the statutory requirements are met. It requires an election on the deceased spouse’s estate tax return. The unused amount doesn’t carry over automatically just because you were married or because no tax was due at the first death. 

Form 706 is generally due nine months after death, and a timely Form 4768 requests an automatic six-month extension to file. The executor should consider portability before the original deadline, even when the estate is well below the filing threshold. Keep in mind that more time to file doesn’t necessarily mean more time to pay.

Certain estates that weren’t otherwise required to file can use the simplified relief in Revenue Procedure 2022-32. The deceased person must have been a U.S. citizen or domiciliary, must have died after 2010 and left a surviving spouse, and no estate tax return can have been filed by the original or extended deadline. The executor must file a complete, properly prepared Form 706 by the fifth anniversary of death, with the required portability statement at the top. This relief doesn’t cover a missed deadline on a return that was required anyway.

International couples need to watch two more things. First, when property passes to a QDOT, the deceased spouse’s unused exclusion is subject to later adjustment and generally is not available for immediate use. Special rules apply if the surviving spouse becomes a U.S. citizen. Second, the estate of a surviving spouse who is a nonresident noncitizen generally can’t use the deceased spouse’s unused exclusion unless a treaty allows it. The familiar domestic shorthand about portability doesn’t fully hold in an international marriage. 

One more limit: portability does not transfer the deceased spouse’s unused GST exemption. Trusts intended to benefit grandchildren or later generations need their own exemption planning.

7. A Foreign Heir’s Inheritance And Later Ownership Are Separate Events

You can leave property to someone living abroad, and their address alone won’t determine how the estate is taxed. Federal estate tax is imposed on the taxable estate as a whole, not as a separate inheritance tax on each beneficiary’s share. Inherited property is generally excluded from the recipient’s income. Income earned by the estate or the property, and certain unpaid income the deceased person was entitled to receive, can still be taxable. 

“Foreign heir” also needs defining. An American child living overseas is still a U.S. citizen. A child who isn’t a citizen may still be a U.S. tax resident. A true nonresident alien beneficiary raises different withholding and ownership questions. Find out the heir’s actual status, not just their mailing address or the passport they travel on.

Leave It Outright, Or In A Continuing Trust?

An outright inheritance gives the beneficiary full control and avoids ongoing trust administration. A trust offers structured distributions and professional oversight. Before choosing either, check how the arrangement will be treated in the country where the beneficiary lives.

For a foreign beneficiary, the executor should work through the practical questions. Can the beneficiary keep the existing investment account? Will a local institution accept the assets? Is cash better than transferring the assets as they are? Who will provide the beneficiary’s tax information? Answer these before making a distribution that can’t be reversed.

Income Distributions May Require Withholding

A U.S. trust generally must withhold on income included in a foreign beneficiary’s gross income, to the extent its distributable net income is made up of amounts subject to withholding. U.S.-source income under the ordinary nonresident withholding rules generally carries a 30% rate unless an exemption or a properly documented treaty reduction applies. Applying 30% to the entire inheritance just because the beneficiary lives abroad is wrong. 

The executor or trustee should collect proper foreign-status documentation, usually Form W-8BEN for an individual, and separate income from principal under the applicable tax rules. Forms 1042 and 1042-S are generally due March 15 after the reporting year, subject to adjustments and special timing rules. A reduced withholding rate doesn’t necessarily eliminate the reporting. 

U.S. real property needs extra attention. An estate or trust generally must withhold 21% on a distribution to a foreign beneficiary to the extent it is attributable to the balance in its U.S. real property interest account. That account tracks gains and losses from U.S. real property sales. This is not a blanket 21% tax on an inherited home or on every payment to an overseas heir.

8. A Foreign Beneficiary Doesn’t Automatically Make A Trust Foreign

For U.S. tax purposes, a trust is domestic only if it passes both a court test and a control test. A U.S. court must be able to exercise primary supervision over its administration, and one or more U.S. persons must control all substantial decisions. A trust that fails either test is generally foreign. 

Where the beneficiary lives doesn’t decide the question. What matters is who holds decision-making power. Substantial decisions include distributions, choosing beneficiaries, investments, termination, and certain powers to replace trustees. A foreign person’s veto right can matter even when a U.S. trustee appears to be in charge. Review the actual powers of every trustee, protector, adviser, and anyone else with authority. 

Successor Provisions Can Move A Trust Offshore By Accident

Say a U.S. parent sets up a trust and names an adult child who isn’t a U.S. person as sole successor trustee. To the parent, that feels like a natural family choice. But when that child takes over, the control test has to be checked again, and the answer depends on the child’s U.S. tax status and actual powers, not on the family relationship.

If a domestic trust becomes foreign, section 684 can treat its assets as transferred to a foreign trust, triggering tax on unrealized gains unless an exception applies. That is a lot more than a change of address or one extra form. Well-drafted succession provisions should anticipate each future trustee’s status and spell out how U.S. administration and control will be maintained, if that’s the goal. 

Offshore Doesn’t Mean Outside U.S. Income Tax

A U.S. person who transfers property to a foreign trust with a U.S. beneficiary is generally treated as owning that portion of the trust under section 679, subject to statutory exceptions. Transfers made because of the transferor’s death are an important exception. A special rule can also reach certain transfers made within five years before a foreign grantor becomes a U.S. resident. If someone is planning a move to the United States, any existing trust should be reviewed first. 

Review trust residence when the document is signed, when a trustee changes, when a decision-maker moves, and when a beneficiary’s status changes. Build that into routine administration instead of waiting for the annual tax return to surface a problem.

9. Coordinate Wills, Marital Property, And Succession Law

A U.S. estate tax opinion doesn’t tell you whether a foreign court will carry out your will as written. Cross-border estates can run into forced heirship rights, marital property rights, and conflict-of-law rules that point to another country’s law. Sometimes the first question isn’t who inherits an asset, but how much of it the deceased person actually owned. 

Having more than one will can help local administration run more efficiently. But each will needs a clearly defined scope. A broad revocation clause can cancel another will by accident, and overlapping descriptions can leave the same asset subject to conflicting instructions. Even with several local documents, you need one coordinated plan. 

Have your advisers review all the documents together, including residuary clauses, property definitions, tax allocation clauses, and executor provisions. Identify assets that pass by beneficiary designation, joint survivorship, company documents, or retirement plan rules, so no one assumes everything passes under the will. The EU Succession Regulation itself treats many of these arrangements as outside its scope.

The EU Succession Regulation Isn’t An Estate Tax Treaty

The EU Succession Regulation applies in participating EU countries, not in Ireland or Denmark; the United Kingdom does not participate either. Where it applies, EU Regulation 650/2012 generally looks to the deceased person’s last habitual residence to decide which law governs succession, with some exceptions. It also lets a person choose the law of a country of nationality to govern their succession as a whole. Someone with more than one nationality can choose among them. 

This can be especially valuable for dual citizens, but the election has to be drafted carefully. Choosing U.S. law means working out which state’s law, because succession law varies from state to state. Article 36 deals with countries that have more than one territorial legal system. A casual line saying “American law applies” is not a substitute for that analysis. 

Most important, the Regulation doesn’t cover tax. It also leaves out marital property questions and the creation, administration, and dissolution of trusts. Choosing a succession law doesn’t opt you out of inheritance tax, settle spouses’ ownership rights, or guarantee that every feature of a trust will be recognized.

10. Weigh Lifetime Gifts Against The Basis Rules For Inherited Property

Giving assets away during life can shift ownership and future growth to the next generation. But gifts and inheritances generally get different income tax basis treatment. Under section 1015, gifted property generally keeps the donor’s basis, with a special fair-market-value limit for figuring a loss. Under section 1014, qualifying inherited property generally takes a basis equal to fair market value at death, or another applicable valuation date. 

That adjustment isn’t always a step up. If the value has dropped, the basis goes down. And not every asset or trust interest qualifies the same way. Know exactly how the property will pass before promising anyone a basis adjustment.

For a family below the estate tax threshold, giving away a highly appreciated asset during life can create a future income tax cost with no offsetting estate tax benefit. That doesn’t make lifetime gifts a bad idea. It means the estate tax goal should be weighed against the beneficiary’s likely income tax position.

Cross-border families have one more question. Will the beneficiary’s country use the same basis? A U.S. basis adjustment is a U.S. tax result. It doesn’t bind another country’s tax authority. Ask for a side-by-side model of the gift and the inheritance, including when the asset is likely to be sold and who will own it at that point.

Retirement And Deferred-Income Assets Need Their Own Review

Section 1014 doesn’t apply to income in respect of a decedent. Section 691 governs how that income is later taxed to the estate or the recipient. So don’t assume retirement accounts or other deferred-income assets become tax-free just because they pass at death. 

For these assets, review beneficiary designations, distribution requirements, withholding, and treaty treatment on their own. The general basis rule for inherited property doesn’t answer a retirement account question.

Keep Valuation And Basis Records

Hold on to purchase records, improvement costs, gift documents, estate appraisals, and the valuation information given to beneficiaries. The tax code also imposes basis consistency requirements in certain estate tax situations. Records are far easier to gather while the owner is alive than to reconstruct after several generations of transfers. 

11. Nonresident Noncitizens Should Review Their U.S. Investments Now

The U.S. estate tax rules for a nonresident noncitizen are very different from those for a citizen or U.S. domiciliary. Form 706-NA is generally required when U.S.-situated assets, plus adjusted taxable gifts and the specified historical gift exemption, exceed $60,000. Treat that as a filing threshold, not a promise that the first $60,000 is always tax-free under every set of facts.

For these estates, situs has to be examined asset by asset. U.S. real estate and tangible property physically located in the United States are generally U.S.-situated. So are shares of U.S. corporations, no matter where the certificates are kept or which broker holds them. A parent living overseas who owns U.S. stock through a foreign broker can have U.S. estate tax exposure. 

Certain bank deposits not effectively connected with a U.S. trade or business are treated as located outside the United States, as are proceeds of insurance on the deceased person’s life. Other debt instruments have their own rules. Not every cash-like investment counts as a qualifying bank deposit. 

Lifetime gifts work differently. For a typical nonresident noncitizen, gifts of intangible property such as U.S. stock are generally outside U.S. gift tax, subject to special rules and exceptions. That can create a legitimate planning opportunity, but it isn’t an automatic recommendation. First check the donor’s classification, the recipient’s status, basis consequences, foreign law, and any expatriation history.

Treaties can change the result, and claiming treaty relief may require information about the worldwide estate. Form 706-NA is generally due nine months after death, with an automatic six-month extension available on Form 4768. 

12. U.S. Heirs Of Foreign Estates Need A Reporting Plan

When a U.S. person inherits outright from abroad, the inheritance itself generally isn’t subject to income tax. That does not necessarily cover income paid out by the foreign estate or unpaid income inherited from the deceased person. Reporting still applies, though. Form 3520 is generally required when a U.S. person receives more than $100,000 in a year in gifts or bequests from a nonresident alien individual or a foreign estate, counting amounts from related foreign persons under the aggregation rules. 

The threshold doesn’t shelter future earnings. Interest, dividends, rent, and other income from inherited property are treated separately. The threshold also isn’t applied to each installment from the same estate. Identify the source and add up the relevant amounts before deciding whether you need to file.

Don’t Confuse A Foreign Estate With A Foreign Trust

A payment from a foreign trust is a trust distribution, even if the family calls it an inheritance, and it doesn’t belong in the foreign gift category. Foreign trust distributions reported on Form 3520 don’t get the $100,000 threshold. The instructions send them to Part III, not Part IV. 

Foreign trust distributions can also produce taxable income, plus accumulation distribution tax and interest. Good trust records and beneficiary statements are essential. Section 6048 imposes unfavorable treatment when the records needed to characterize a distribution aren’t provided. Get the trust deed, accounts, distribution history, and a U.S. tax analysis before accepting anyone’s word that the payment is all tax-free capital. 

Put Each Information Return On Its Own Calendar

For a calendar-year individual, Form 3520 is generally due April 15. Qualifying individuals living abroad get the June 15 deadline described in the instructions, with the required statement. An income tax extension generally extends Form 3520 to no later than October 15. Form 3520 is its own filing, and filing your income tax return doesn’t replace it. 

Foreign trusts with U.S. owners have a separate Form 3520-A requirement, generally due on the 15th day of the third month after the trust’s year ends. An income tax extension doesn’t extend it. Form 7004 is the correct extension request. If the foreign trust doesn’t file, the U.S. owner needs to look at the substitute Form 3520-A procedures and their separate timing. 

Failing to report a covered foreign gift can carry a penalty of 5% per month, up to 25%, unless there is reasonable cause. 

Inherited Foreign Accounts Bring More Reporting

An FBAR generally applies once your reportable foreign financial accounts exceed $10,000 in total at any point during the year, under the applicable financial-interest and signature-authority rules. It’s due April 15, with an automatic extension to October 15. Form 8938 covers different assets with different thresholds, and it doesn’t replace the FBAR. 

13. Expatriation Can Change How The Next Generation Is Taxed

Living abroad as a U.S. citizen is not the same as giving up citizenship. A family considering expatriation needs to look past the individual’s own position on the way out and think about future gifts and bequests to U.S. relatives.

Section 2801 imposes a separate tax on U.S. citizens and residents who receive covered gifts and bequests from covered expatriates, and the recipient generally pays it. For this tax, residence means U.S. domicile under the estate and gift tax rules, not simply income tax residence. Under the current Form 708 instructions, the rate is 40% on net covered gifts and bequests above the annual exclusion, reduced for qualifying foreign gift or estate tax. For 2026, the annual exclusion for this purpose is $19,000, not the lifetime estate and gift exclusion. 

Not every former citizen is a covered expatriate, and there are exceptions for certain transfers, including qualifying marital and charitable transfers and certain property properly reported under the regular gift or estate tax rules. But the family needs records showing the expatriate’s status and how specific transfers were treated. Don’t assume a later foreign inheritance escapes U.S. transfer tax. 

The final regulations took effect in January 2025 and apply to covered gifts and bequests received on or after January 1, 2025. The current Form 708 instructions set out the reporting mechanics. Form 708 is generally due on the 15th day of the 18th month after the end of the year the gift or bequest was received. The instructions give June 15, 2027, as the deadline in the ordinary 2025 receipt-year example. Certain bequests and trust situations have special timing. Form 708 and Form 3520 are not interchangeable. 

The Goal Is One Coordinated Plan

The strongest global estate plans tie together tax classification, legal ownership, succession rights, beneficiary needs, and administration. They don’t assume that an American abroad has left the U.S. estate tax system, that a noncitizen spouse gets every domestic marital benefit, or that a “tax-free” inheritance comes with no reporting.

Start by documenting your family and your assets. Decide what each beneficiary should receive and how they will hold it. Then coordinate the U.S. federal analysis with state and foreign advice, and choose trusts and other tools only once the intended results are clear.

A well-designed plan leaves your family with more than signed documents. It gives them a clear path for every asset, a realistic plan for cash and liquidity, clear filing responsibilities, and records the next generation can actually use.

If you are planning a move to the UK you need to understand what the UK’s new taxation rules mean for tax on your worldwide income.

In April 2025, the UK brought in major changes that affect how expats living in the UK are taxed. Whether you are moving for a couple of years or planning a permanent shift, it’s important to know how the rules work so you don’t get any unexpected surprises.

Becoming A UK Tax Resident

The UK automatic residency tests include:

• Residing in the UK for 183 days or more in the tax year.
• Spending at least one day of the tax year in the UK and working full-time in the UK for a period of 365 days.
• If your home was in the UK for 91 days or more in a row and you visit or stay in the UK for at least 30 days of the tax year.

If you do not meet the residency tests under any of the automatic tests you may still be a UK resident if you meet other conditions, such as sufficient ties and day-count thresholds.

New UK Residents

Once you are a UK resident you are generally taxed on your worldwide income.

Historically new UK residents were eligible for the “non-dom” rules. These rules allowed foreign income to be excluded from UK taxation when it is not remitted into the UK and meant that expats who were “non domiciled” individuals could return to their home country without any ongoing UK tax considerations (other than income relating to assets remaining in the UK).  

From April 2025 all UK residents are taxed on their worldwide income, regardless of their domicile.

UK Taxes On Worldwide Income

Under the new tax rules expats who are UK residents will generally:

• Pay UK taxes on their worldwide income, regardless of whether the money is brought into the UK.
• Pay capital gains tax on worldwide assets.
• Be subject to inheritance tax rules. Note that inheritance taxes may continue to apply even after departing the UK for individuals who reside in the UK for ten years or more.

Four Year Exemption

New arrivals to the UK (who have not been UK tax residents within the previous ten consecutive years) will receive 100% relief on foreign income and gains for the first four years of their UK residency.

This means you can live in the UK for up to four years before being taxed on your worldwide income or avoid the double taxation of worldwide income if you only live in the UK for less than four years.

Conclusion

Moving to the UK has significant tax implications for expats. Key issues revolve around when you commence UK residency. Proper planning before departure can minimise double taxation, optimise use of tax concessions and exemptions, and ensure you remain compliant in the UK and your home country. 

Navigating U.S. taxes as an American expat living abroad can be confusing, but it’s crucial to understand your obligations. 

The United States taxes its citizens and resident aliens on worldwide income, no matter where they live. 

This article outlines the U.S. tax system for expats covering key terms, filing requirements, common mistakes, deadlines, and practical tips to stay compliant and avoid penalties.

Overview Of The U.S. Tax System For Expats

Unlike many countries, the U.S. follows a citizenship-based taxation model. 

This means if you are a U.S. citizen or a resident alien (more on this term below), you must file U.S. tax returns and potentially pay U.S. taxes even while living abroad. 

In other words, your obligation to the IRS doesn’t end when you move overseas. You are generally required to report all income from all sources worldwide on your U.S. tax return.

To prevent double taxation (being taxed by both the U.S. and your country of residence on the same income), the tax code provides relief in the form of credits and exclusions. 

Two key provisions are the Foreign Earned Income Exclusion (FEIE) and the Foreign Tax Credit (FTC). 

The FEIE allows qualifying expats to exclude a certain amount of foreign earned income from U.S. tax – for example, up to $126,500 of foreign salary in tax year 2024. The Foreign Tax Credit, on the other hand, lets you offset U.S. tax with taxes paid to a foreign country. These benefits recognize that expats often pay taxes abroad, but you only get them by filing a U.S. return. Even if you owe nothing to the IRS after using exclusions or credits, you still must file to claim these benefits and meet your legal requirements.

Key Tax Terms Expats Should Know

Understanding a few basic tax terms will help make sense of your U.S. filing obligations:

• Tax Return – A tax return is the annual form or set of forms you file with the IRS to report your income, deductions, credits, and calculate any tax owed or refund due. For individual expats, this usually means filing Form 1040 (the U.S. Individual Income Tax Return) each year. In simple terms, it’s your annual report to the IRS on your finances. Even if you live abroad, if your income is above the filing threshold for your status, you need to submit a tax return to remain compliant.

• FBAR (Foreign Bank Account Report) – The FBAR is a separate reporting requirement for foreign financial accounts. If you are a U.S. person (citizen or resident) and the total value of your foreign bank accounts exceeds $10,000 at any time during the year, you must file an FBAR (officially FinCEN Form 114). This is not a tax form per se (no tax is calculated on it), but an informational report to the U.S. Treasury. The FBAR is filed online through the Treasury’s FinCEN system, not with your tax return. Even accounts that produce no income must be reported if the aggregate balance hit the $10k mark. Failing to file an FBAR when required can result in severe penalties, so it’s a crucial obligation for expats with foreign accounts.

• Resident Alien – In tax terms, a resident alien is a non-U.S. citizen who is treated as a U.S. resident for tax purposes. This generally means someone who either has a green card (Lawful Permanent Resident status) or meets the IRS substantial presence test (based on days spent in the U.S.). A resident alien’s U.S. tax responsibilities are essentially the same as those of a U.S. citizen: they must report and potentially pay U.S. tax on their worldwide income. For example, a foreign national working in the U.S. on a long-term assignment may become a resident alien and be subject to U.S. taxes on global income just like an American expat would be.

• Non-Resident Alien (NRA) – A non-resident alien is a non-U.S. citizen who does not meet the green card or substantial presence test for U.S. tax residency. NRAs are generally taxed only on their U.S.-source income (for instance, income from working in the U.S. or investment income from U.S. assets). They do not have to report worldwide income. For expats, this term comes up if, say, you’re an American married to a non-U.S. citizen – your foreign spouse is considered a non-resident alien for U.S. tax purposes (unless they choose to be treated as a resident alien by election). It’s important to know the difference, because U.S. tax rules and filing status options differ depending on whether a spouse is a resident alien or NRA.

Who Must File And What To Report As An Expat

Filing Requirements

All U.S. citizens or resident aliens must file a U.S. income tax return if their income is above certain minimum thresholds, which vary by filing status and age. These thresholds are usually equivalent to the standard deduction (for example, around $14,600 for a single filer under 65 in the 2023 tax year). 

In many cases, expats meet these filing minimums. In fact, if you’re married to a foreign spouse and file separately, you may have to file if you earned just $5 or more in income. The point is, don’t assume you’re off the hook just because your income is below the Foreign Earned Income Exclusion amount or because you owe no tax. Expats still need to file annual returns if their gross income exceeds the normal filing threshold for their situation.

Worldwide Income

When filing, you must report all forms of income from everywhere: salary from a foreign employer, freelance or business income, investment earnings, pensions, rental income, etc. The IRS expects expats to report worldwide income every year—not just U.S. source income. 

If you’ve paid taxes to a foreign government on that income, you can typically claim a Foreign Tax Credit to offset U.S. tax, and if you qualify, you can use the Foreign Earned Income Exclusion to exclude foreign wage or self-employment income up to the limit. But these benefits must be claimed on a filed return; they’re not automatic. 

Failing to report an income source – even if by accident – is a common mistake that can raise an IRS red flag, especially now that under FATCA (Foreign Account Tax Compliance Act), foreign banks report financial info of U.S. account holders to the IRS. In short, the IRS has ways to know about your foreign income, so it’s best to be transparent and report everything truthfully.

Foreign Assets And Accounts

In addition to your tax return, expats need to be aware of separate reporting requirements for foreign assets.

• FBAR – As explained, if your combined foreign account balances exceed $10,000 at any point in the year, you must file an FBAR. This includes not just bank accounts, but also foreign investment accounts, certain retirement accounts, or even accounts where you have signature authority but no ownership (for example, if you can sign on a parent’s or employer’s foreign account). The FBAR is an annual online filing due April 15 (it’s automatically extended to October 15 each year). It’s important to file the FBAR on time – there’s no tax to pay on it, but penalties for missing it can be steep.

• FATCA Form 8938 – Under FATCA, certain expats may also need to file Form 8938 (Statement of Specified Foreign Financial Assets) with their tax return. 

This form overlaps with the FBAR in some ways but has different thresholds and covers a broader range of foreign assets. 

For instance, Form 8938 requires reporting foreign financial assets (bank accounts, investment accounts, foreign stocks or bonds, foreign mutual funds, etc.) if their total value exceeds a higher threshold – for example, a married couple filing jointly and living abroad would file Form 8938 only if their foreign assets exceed $400,000 on the last day of the year or $600,000 at any time during the year (lower thresholds apply for single filers or those living in the U.S.).

The exact threshold varies by filing status and whether you reside abroad or in the U.S.. Not every expat will meet these limits, but if you do, Form 8938 is required in addition to the FBAR. Like the FBAR, failing to report assets on Form 8938 when required can lead to penalties.

In summary, most expats need to report their worldwide income on Form 1040, and if they have foreign accounts or assets, be mindful of FBAR and FATCA Form 8938 requirements. It’s wise to keep records of your foreign income (pay slips, bank statements, etc.) and the highest balances of your accounts so you can report accurately. Remember: reporting does not always mean owing tax, but not reporting can lead to big problems.

Deadlines, Extensions, And Avoiding Penalties

Tax Return Deadlines

The standard deadline for filing a U.S. individual tax return is April 15 of each year (for the prior calendar year’s income).

The good news for expats is that if you are living abroad on April 15, the IRS gives you an automatic 2-month filing extension to June 15 . 

You don’t have to file any form to get this automatic extension, but it’s a good idea to attach a statement to your return noting you were abroad and eligible for the automatic extension.

If June 15 still isn’t enough time, you can request a further extension to October 15 by filing Form 4868 before June 15 . 

In special cases (and with a proper request), expats can even get an extension to December. 

However, be careful: an extension to file is not an extension to pay any tax due. 

If you end up owing U.S. tax for the year, interest starts accruing from April 15 onward, even if you filed for an extension. 

To avoid interest and penalties, it’s best to pay an estimated amount by April 15 if you suspect you’ll owe anything, or as soon as possible.

FBAR Deadline

The FBAR follows a similar schedule – it’s due April 15 as well, but FinCEN grants an automatic extension to October 15 every year. You don’t need to file any form for that FBAR extension; it’s automatic if you miss the April deadline. Essentially, October 15 is the final due date for the FBAR. Mark your calendar and don’t forget this separate filing.

Avoiding Penalties

Missing deadlines or failing to file required forms can result in penalties. 

For the tax return itself, the failure-to-file penalty can be harsh (typically 5% of the unpaid tax per month late, up to 25%), and a failure-to-pay penalty (0.5% of unpaid tax per month) may apply if you don’t pay on time. Even if you can’t pay right away, always file your return (or an extension) on time to minimize penalties. 

The IRS will usually work with you on payment plans, but not filing is seen as more serious. If you owe $0 but file late, you won’t have a failure-to-pay penalty, but a late filing can still trigger a monetary penalty if you were required to file. In short, meet your deadlines – and if you can’t, get the automatic extensions available to expats and pay what you can by April 15.

For the FBAR and other information returns (like Form 8938, or forms for foreign trusts or corporations if those apply), penalties can reach into the tens of thousands of dollars, even if no tax was due, because these are primarily about reporting compliance. 

The FBAR, for example, can carry a civil penalty of up to $10,000 for non-wilful violations, and much more if the violation is found to be wilful. 

The IRS has increasingly enforced these rules, so don’t treat them lightly. 

The safest course is to file all required forms on time and fully disclose what’s required. If you realize you’ve missed something (like forgetting an FBAR in a prior year), consider seeking advice on how to correct it – the IRS has amnesty programs (such as the Streamlined Filing Compliance Procedures) to help expats catch up on late filings penalty-free if the lapses were non-wilful.

Common Tax Mistakes And Risks For Expats

Even well-intentioned expats can slip up on U.S. tax obligations. 

Here are some common mistakes and compliance risks to watch out for:

• Assuming You Don’t Need To File – A pervasive myth is that if you live abroad or your income is under the FEIE limit, you don’t have to file a U.S. return. In reality, all U.S. citizens or residents with income over the filing threshold must file annual returns, regardless of where they live. 

Thousands of expats fail to file each year, often simply because they aren’t aware they need to. Not filing is one of the biggest red flags to the IRS and can lead to problems down the line. Remember, you may not owe tax due to exclusions/credits, but you still need to file to claim those and inform the IRS of your income.

• Reporting Only U.S. Income – Some expats do file U.S. taxes but omit their foreign income, mistakenly thinking that income earned abroad isn’t taxable or doesn’t need to be reported. This is incorrect – as mentioned, the U.S. taxes worldwide income. 

If you earned money overseas (salary, business income, interest, etc.), it must be included on your U.S. return, even if it will be excluded or offset by a credit. Failing to report foreign income can not only negate your eligibility for things like the FEIE, but it also looks like you’re trying to hide money. 

With FATCA in effect since 2010, the IRS often receives information on your foreign accounts and earnings from foreign banks. In short, they likely already know about that overseas salary or bank interest, so don’t leave it off your return.

• Forgetting To File FBAR/8938 – Another frequent mistake is neglecting the FBAR or Form 8938 reporting. 

These forms can be easy to overlook because they don’t involve paying tax, and expats may not even realize they exist until after they’ve missed a deadline. Not reporting a foreign account or asset when required is a serious compliance issue. 

An expat might think, “It’s just a savings account in my country of residence – why would the U.S. care?” But the law is the law: if the thresholds are met, you must file the FBAR and/or Form 8938. 

The IRS and Treasury have cracked down on offshore account reporting in the past decade, issuing hefty penalties to some who wilfully hid assets. Most expats who miss these forms do so by accident, but it’s an expensive accident to make. Always check each year if your accounts crossed the $10k FBAR limit or if your assets require Form 8938, and err on the side of reporting if unsure.

• Missing Deadlines Or Extensions – Life abroad can be busy, and it’s easy for tax deadlines to sneak up on you – especially with different filing dates than the local taxes in your country. Many expats file late or not at all simply due to poor deadline management. 

Missing the April 15 (or June 15 automatic expat extension) deadline without filing an extension can lead to late-filing penalties that add up. Likewise, forgetting the FBAR by October 15 could draw unwanted attention. The risk here is not just fines, but also the stress of knowing you’re behind on compliance. 

Mark your calendar with U.S. tax dates, use reminders, and if needed, get professional help to ensure you meet all deadlines. It’s far easier to file on time than to explain to the IRS later why you didn’t.

• Not Using Available Tax Benefits (Or Using Them Incorrectly) – Expats have access to special tax provisions like the FEIE, Foreign Housing Exclusion, and Foreign Tax Credit. 

A common mistake is not taking advantage of these, which can lead to overpaying U.S. taxes. 

For example, if you paid foreign income taxes, you should claim the Foreign Tax Credit to reduce your U.S. tax bill – otherwise you’re paying tax twice. 

On the flip side, some expats misunderstand these rules and claim something they shouldn’t, or double-dip (for instance, excluding income with FEIE and also claiming a credit on the same income, which isn’t allowed). 

Claiming large exclusions or credits you aren’t eligible for can raise a red flag in the IRS system. 

Always ensure you meet the criteria (like the 330-day presence test for the FEIE ) and fill out the required forms (Form 2555 for the FEIE, Form 1116 for the Foreign Tax Credit) accurately. If done right, these provisions are completely legal and beneficial. 

If done wrong, they can trigger an audit or additional taxes. When in doubt, consult a tax professional to get these right.

• Overlooking Filing Status Options – Expats who are married might not realize how their choice of filing status can affect their taxes and obligations. 

For instance, if you’re married to a non-U.S. citizen (non-resident alien), you generally cannot file jointly unless you make a special election to treat your spouse as a U.S. resident for tax purposes. 

If you don’t make that election, you’ll file as Married Filing Separately – which, as noted, can mean a very low income threshold (often effectively $5) for having to file a return. 

Some expats miss out on beneficial options, like electing to file jointly with a foreign spouse (which can allow a higher standard deduction, but also means your spouse’s income is subject to U.S. tax – a complex decision). 

Make sure you understand your filing status choices and their consequences. Likewise, if you have dependent children abroad, look into claiming the Child Tax Credit or Foreign Tax Credit for any foreign taxes paid on their behalf. Misunderstanding filing status and dependency rules can be a pitfall.

• Assuming The IRS Won’t Notice – In years past, some expats took the approach of “out of sight, out of mind” regarding U.S. taxes. 

This is increasingly risky. 

Not only does FATCA enable the IRS to receive data on Americans abroad, but there’s evidence that Americans overseas are more likely to be audited than domestic taxpayers. 

The IRS knows expat taxes can be complex, and they use automated systems to flag irregularities (like unreported foreign accounts or large exclusions). 

It’s a mistake to assume you can fly under the radar indefinitely. 

If you haven’t been filing because you were unaware of the requirements, the IRS offers programs (like the Streamlined Procedure) to come clean without facing penalties. 

But if you wilfully ignore your obligations and the IRS catches up, the outcome could be much worse – including potential fines or even loss of your passport in extreme tax delinquency cases. The bottom line: take compliance seriously, because the IRS certainly does.

By being aware of these common pitfalls, you can take steps to avoid them. Most mistakes are avoidable with a bit of knowledge and careful record-keeping.

Examples Of Expat Tax Scenarios

Every expat’s situation is a little different. 

Let’s look at a few example scenarios to see how U.S. tax rules apply in practice:

Single Filer Living Abroad

Scenario: Jane is a single U.S. citizen living and working in Australia. She earns the equivalent of $80,000 per year from an Australian employer and pays Australian income taxes on that salary. 

She also has an Australian bank account that at one point held $15,000 in savings.

How U.S. Taxes Apply: Jane must file a U.S. tax return because her income ($80k) is well above the filing threshold (even if it were below, since it’s above about $13k she’d still need to file). On her U.S. return, she will report her $80k salary as income. 

To avoid double taxation, she has options: she could use the Foreign Earned Income Exclusion (FEIE) to exclude $80k (which is under the limit of around $126,500 for the year) from U.S. taxation, or she could claim a Foreign Tax Credit for the Australian taxes she paid. 

She’ll choose the method that benefits her most (often, if the foreign tax rate is higher than U.S., the tax credit works well; if the foreign tax is lower, FEIE might save more). Either way, by using these provisions, she will likely owe little to no U.S. tax – but she still files the return to report everything and claim the exclusion or credit. 

Additionally, because her Australian bank account exceeded $10,000, she needs to file an FBAR by October 15 to report that account . 

If the total value of all her foreign financial assets is below the Form 8938 threshold (which for a single filer abroad is $200k at year-end), she wouldn’t need to file Form 8938. In Jane’s case, only the bank account of $15k is relevant and that is below $200k, so no Form 8938, just the FBAR. By filing these, Jane stays compliant and avoids penalties.

Key Takeaway: Even if you’re a single expat who owes nothing to the IRS due to foreign exclusions/credits, you must file a return and required asset reports. This keeps you in good standing and ensures you legally claim the tax benefits available.

Married To A U.S. Citizen (Both Spouses Abroad)

Scenario: John and Alice are a married couple, both U.S. citizens, living in Australia. 

John works for an Australian company and earned $100,000; Alice is self-employed and earned $50,000. They have two kids (U.S. citizen dependents) and joint foreign bank accounts that peaked at $25,000 during the year.

How U.S. Taxes Apply: John and Alice can choose to file their U.S. taxes as Married Filing Jointly, which generally offers a higher standard deduction and other benefits. 

They will report John’s $100k and Alice’s $50k, plus any other income (if Alice’s self-employment generated any business profit, that counts too). 

Since both are abroad all year, they likely qualify for the FEIE. 

They could each exclude their foreign earned income: John could use the FEIE on his $100k and Alice on her $50k (each spouse can exclude up to the limit, around $126,500 each, so all their earned income can be excluded). 

They would file Form 2555 for each spouse to claim the exclusion. 

Alternatively, if Australia’s income tax on those earnings is higher, they might choose to use the Foreign Tax Credit instead (filing Form 1116) to offset U.S. tax with Australian tax paid. 

They’ll also get to claim their children as dependents and possibly the Child Tax Credit, just as if they lived in the U.S. (note: the refundable Additional Child Tax Credit is available to expats only if they have earned income above a certain amount and taxes paid – this gets a bit detailed, but the key is they follow mostly the same rules).

Because they have foreign bank accounts exceeding $10k combined, they must file an FBAR reporting those accounts. 

Since they file jointly, they can submit one FBAR listing both as joint owners of the accounts. 

They should also check the threshold for Form 8938: for a joint return by a couple abroad, the threshold is $400,000 at year end (or $600k at any time). Their $25k in accounts is way below that, so no Form 8938 needed.

Key Takeaway: Married American expats can file jointly and effectively double the amount of foreign income they can shield via the FEIE (each can claim it) – in this case excluding all $150k of income – but they must file to claim these benefits. They also need to report foreign accounts. Being married doesn’t reduce the FBAR or FATCA reporting duties: those still apply jointly if thresholds are met. By coordinating their filing, John and Alice can minimize U.S. tax (likely to $0 after exclusions/credits) while staying fully compliant.

Working Remotely From Overseas (Digital Nomad)

Scenario: Sara is a U.S. citizen who spent the year moving between several countries in Asia and Latin America, working remotely as a freelance graphic designer. 

She has no fixed employer – she does gig work for clients worldwide, earning about $70,000 over the year. 

She didn’t establish tax residency in any one foreign country (she was traveling), and she did not pay taxes to any foreign government on that income. 

She kept her money in a U.S. bank account and a digital wallet, with only a small foreign bank account in Thailand where she briefly stayed (balance never above $5,000).

How U.S. Taxes Apply: Sara is still fully responsible for U.S. taxes on her freelance income. 

In fact, because she didn’t pay any foreign income tax, the Foreign Tax Credit isn’t applicable (there’s no foreign tax to credit). 

However, she can use the Foreign Earned Income Exclusion if she meets one of the qualifying tests. 

Since she’s a digital nomad, the likely test is the Physical Presence Test – she must show she was outside the U.S. for at least 330 days in a 12-month period that overlaps with the tax year. 

If she meets that (which, if she only had brief visits back to the U.S., she will), she can exclude up to $126,500 of her freelance income. 

Her $70k falls under that cap, so by filing Form 2555 with her 1040, she could exclude it and owe no U.S. income tax on it. 

But importantly, because she’s self-employed, U.S. self-employment tax (Social Security/Medicare) may still apply on that $70k even if income tax is excluded. 

Unless she falls under a Totalization Agreement (agreements the U.S. has with some countries to coordinate Social Security taxes), Sara is supposed to pay self-employment tax to the U.S. (approximately 15.3% of her net self-employment income). 

Some expats overlook this – but the FEIE does not waive Social Security tax. 

If she had instead been paying into a foreign country’s social system and that country had a treaty with the U.S., she might be exempt from U.S. self-employment tax. 

It gets technical, but she should be aware of this aspect. 

From an income tax perspective though, Sara can likely eliminate U.S. income tax via the FEIE.

Since Sara’s foreign bank account never exceeded $10k, she does not need to file an FBAR in this scenario. 

And her foreign financial assets are minimal, so no Form 8938 either. Her main task is to file her U.S. tax return reporting the $70k and then excluding it with FEIE. 

If she doesn’t file, the IRS doesn’t know she qualifies for the exclusion – they might assume she owes tax on $70k and could flag her for not filing. 

By filing and using the FEIE, she stays on the right side of the law and avoids a surprise IRS notice.

Key Takeaway: Even “digital nomads” and remote workers with no fixed address abroad must file U.S. taxes. In some ways, they need to be extra careful: without a foreign tax home, the Physical Presence Test is their ticket to the FEIE. Planning travel to ensure 330+ days abroad is crucial. Also, remember U.S. self-employment tax can still bite. Always evaluate both income tax and social tax obligations when working for yourself abroad.

Practical Tips For Staying Compliant And Avoiding IRS Scrutiny

Filing U.S. taxes from abroad doesn’t have to be a nightmare. 

Here are some practical tips to ensure compliance and keep the IRS happy while you enjoy life overseas:

• Stay Organized And Keep Good Records – Maintain a file (digital or physical) with all relevant documents each year. 

This includes W-2s or 1099s from U.S. payers, but also foreign pay slips, records of foreign taxes paid, bank statements showing year-end balances (for FBAR/FATCA), and any other proof of income or deductions. 

Good records make it much easier to file accurately and defend your figures in case of any questions. 

For example, if you claim the Foreign Housing Exclusion, keep receipts of rent and utilities.

If you claim the Physical Presence Test, keep travel logs or passport stamps as evidence of your days abroad. 

Having documentation ensures you can substantiate your claims and avoid trouble if audited.

• Mind Your Dates And Plan Ahead – As mentioned, mark your calendar with the key deadlines: April 15 (tax payment due), June 15 (expat return due if not extending), October 15 (extended return due and FBAR final due). 

If you know you’ll need more time, file Form 4868 by June 15 to push to October. Set reminders a month before to gather documents or reach out to a tax preparer. 

If you’re expecting a refund, filing earlier is better; if you think you owe, at least calculate and pay by April to stop interest. 

Also, if you move frequently, consider setting up a U.S. mailing address (like a family member’s or a mail forwarding service) or ensure you update your address with the IRS, so any correspondence reaches you. Missing an IRS letter because it went to an old address can escalate an issue unnecessarily.

• Don’t Skip Reporting Requirements – Make It A Checklist Item Every Year: “Do I need to file an FBAR? Form 8938? Any other forms?”. 

If you had any non-U.S. financial accounts, total their max balances to see if you cross $10k – if yes, do the FBAR. If you owned shares in a foreign corporation, or a foreign mutual fund, or you’re the beneficiary of a foreign trust, research the forms (Form 5471 for foreign corps, Form 8621 for PFICs like foreign mutual funds, Form 3520 for trusts/gifts, etc.). 

These can be complex, but they’re important. When in doubt, consult a tax professional versed in expat issues; they can identify which extra forms apply to you. It’s much better to file an informational form that might not end up being needed than to ignore it and face a penalty. Compliance is key – the more transparent you are with the IRS, the less likely they’ll have reason to scrutinize you.

• Use Direct Deposit And Online Tools – If you expect a refund, set up direct deposit to a U.S. bank account (it’s faster and more secure, and yes, you can receive a refund while abroad). Create an account on the IRS website to access your tax transcripts and notices electronically. 

This can be helpful to track your filing history or any communications. 

The IRS also has an Interactive Tax Assistant and many online FAQs that can clarify common questions for expats. And remember, you can electronically file (e-file) your return from abroad – you don’t have to mail paper forms across the ocean. E-filing is typically faster and reduces errors.

• Leverage Tax Treaties And Professional Advice If Needed – The U.S. has tax treaties with many countries that can affect how certain income is taxed (for example, a treaty might exempt certain pension income, or clarify residency in dual-resident situations). 

• Voluntary Compliance And Amnesty – If you realize you’ve missed filings in past years, don’t panic. The IRS offers pathways to get back on track. The most common for expats is the Streamlined Filing Compliance Procedures, which is essentially an amnesty program for those who failed to file or report foreign assets due to non-wilful neglect. It generally requires you to file the last 3 years of tax returns and 6 years of FBARs, and the IRS will forgive the penalties. 

Taking advantage of this can wipe the slate clean. 

What you shouldn’t do is continue ignoring the issue or attempt a “quiet disclosure” (just sending in old forms without noting you’re in a program) – that can backfire. 

Show good faith by coming forward under the proper procedures. 

The IRS is usually much harsher on those who wilfully evade taxes than those who genuinely didn’t know and then corrected their mistakes.

• Be Truthful And Thorough – This may sound obvious, but always be honest on your tax forms. 

Overstating deductions, underreporting income, or hiding accounts isn’t worth the risk. 

The IRS has become quite sophisticated in detecting discrepancies. With data sharing between countries (FATCA) and improved technology, trying to outsmart the system could lead to an audit or investigation. 

Most expats who file properly and pay what’s due (or legitimately owe nothing) will not hear from the IRS aside from maybe a refund check or a confirmation. Those who cut corners, however, might invite extra scrutiny. It’s simply not worth it. 

If you make an honest mistake, that’s one thing – the IRS can be understanding – but if you intentionally omit things, the penalties can be severe if discovered. Play it safe by filing complete and accurate returns.

By following these tips and staying informed about your responsibilities, you can significantly reduce the likelihood of IRS problems. Being an expat is exciting and comes with many life changes; by handling your U.S. taxes diligently, you’ll have one less thing to worry about.

Final Thoughts

U.S. tax obligations don’t disappear when you move abroad, but with knowledge and preparation, they become just another manageable aspect of expat life. 

To recap, always remember that U.S. persons abroad must report their worldwide income and often their foreign accounts. 

Take advantage of provisions like the FEIE and Foreign Tax Credit to avoid double taxation – these exist to help you, but you must file to use them . 

Keep an eye on deadlines (utilize that automatic expat extension to June 15, but pay by April if you owe) and don’t ignore additional forms like the FBAR. 

Common mistakes like not filing or failing to report something can lead to penalties or audits, especially since the IRS has increased its focus on international compliance. 

The good news is, if you stay compliant and informed, you can avoid penalties and IRS scrutiny while fulfilling your civic duties as an American abroad.

With the United Kingdom preparing to abolish the non-domiciled (“non-dom”) tax status from April 6, 2025, many Australians are considering the tax impact of returning home. See our article Australians Living In The UK: How The New “Non-Dom Tax” Changes May Affect You.

Whether you make the decision to return home before the tax changes take place, or you remain in the UK until after the new laws impact you, when you return home it is important to manage your UK tax exit obligations.

Simple Checklist For Australians Returning From The UK

1. Confirm UK tax residency status and apply for split-year treatment (if eligible).

2. File a final UK tax return and settle any outstanding liabilities.

3. Plan capital gains tax-efficiently (consider selling non-UK assets after leaving to avoid UK CGT).

4. Transfer UK savings and close unnecessary UK bank accounts.

5. If keeping UK property, register with HMRC’s Non-Resident Landlord Scheme and  ensure that you continue to file UK tax returns as a non-resident.

6. Seek advice on Australian taxes and ensure your Australian tax return is prepared in accordance with Australian tax residence rules, including declaring worldwide income.

7. Review foreign asset disclosures and pension tax treatment with the ATO.

8. Be mindful of the 10-year UK IHT rule for former UK residents9- Use the UK-Australia Double Tax Agreement to mitigate double taxation.

The Key Differences For Australians Returning To Australia Before vs After The UK’s New Non-Dom Rules (April 6, 2025)

The timing of departure from the UK will significantly impact an Australian’s tax obligations in both the UK and Australia. The key differences arise in capital gains tax (CGT), inheritance tax (IHT), and foreign income treatment.

1. UK Capital Gains Tax (CGT) Implications On Worldwide Assets

The Key Difference for CGT purposes is that leaving before April 2025 allows Australians to sell non-UK assets CGT-free under the remittance basis. Individuals leaving after April 2025 may still owe UK CGT on global assets if they were UK residents for more than 4 years.

2. UK Inheritance Tax (IHT) Exposure

The key difference for IHT exposure is that before April 2025 a non-domiciled resident does not have their worldwide assets caught in UK IHT rules when they leave the UK. Leaving after April 2025 can expose them to UK IHT for up to 10 years if they were a UK tax resident for a decade or more.

3. UK Tax On Foreign Income And Remittances

Non-domiciled individuals who leave before April 2025 avoid retrospective taxation on foreign income and remittances. Leaving after April 2025 could mean more UK tax on past foreign income, depending on transition arrangements.

4. Remittance Of Foreign Income Into The UK

Prior to 2025 a non-domiciled resident would avoid UK taxes on foreign income if they did not bring this income into the UK.

Under the new UK tax rules all foreign income is taxable in the UK after the first four years, regardless of whether the income is brought into the UK or not. It is important to ensure that your Australian income isn’t brought into the UK prior to 6 April 2025 if you want to avoid UK taxes on that income.

After 6 April 2025 you may be exempt from paying UK taxes under the four-year exemption rule. If you are not exempt under this rule you may be able to bring previously untaxed foreign income into the UK under a reduced tax rate if a decision to designate this income for remittance into the UK is made before the end of the 2028 financial year. Foreign income earned from 6 April 2025 (other than income earned under the 4 year exemption rule) will be taxable, regardless of whether it is remitted into the UK or not.

5. UK Property And Rental Income

The rules remain similar in that UK rental income will continue to be taxable in the UK as the country of source, as well as being taxable in Australia as the country of residence. However, the CGT rules may be stricter for UK purposes for former UK residents, meaning that the key difference is that an individual returning to Australia may see better CGT outcomes if they sell their UK property before they leave. As this will depend on specific factors, it is important to obtain correct tax advice for your specific situation prior to making your move back to Australia.

 6. Australian Tax Treatment Upon Returning

Regardless of when an individual returns, Australians:

a) Will immediately become Australian tax residents and be taxed on their worldwide income for Australian tax purposes.

b) Must declare UK rental income, pension withdrawals, and foreign bank accounts.

c) May claim foreign tax credits for UK tax paid on income still sourced in the UK.

Leaving before April 2025 gives returning Australians more flexibility to clear UK tax obligations before Australian tax residency resumes.

Overview Of Tax Impact Of Australian Leaving Before Or After April 2025

Factor	Before April 6, 2025 (Old Rules)	After April 6, 2025 (New Rules)
UK CGT On Worldwide Assets	No CGT on non-UK assets	Worldwide assets taxable if UK resident 4+ years
UK Inheritance Tax (IHT)	Only applies to UK assets	Worldwide estate taxed if UK resident 10+ years
UK Tax On Foreign Income	Foreign income not taxed if remitted after leaving	Worldwide income taxable if UK resident 4+ years
Bringing Foreign Income Money Into The UK	UK tax only applies when remitted to the UK	UK tax applies on worldwide income (after the first four years) and possible UK tax on past foreign income if repatriated
Australian Tax Impact On Moving Back To Australia	Becomes tax resident immediately, but avoids UK transition issues	Still becomes tax resident of Australia, but may owe UK taxes on past foreign income

Summary

Australians who leave the UK before April 6, 2025 will avoid new UK tax burdens on foreign assets, income, and IHT. Anyone staying past April 2025 or moving to the UK after this date, may face unexpected UK tax liabilities which may continue even after leaving.

These changes mark a significant departure from the UK’s previous tax regime. Understanding these changes is important when assessing a decision around how long you plan to live in the UK, and how this may impact your current tax obligations, as well as the tax impact on your estate.

Whether you are still making your decision on living in the UK, or need to understand the tax consequences of your decision, it is important to engage an international tax specialist who can provide up to date and accurate information tailored to your specific situation.

The United Kingdom is prepared to abolish the non-domiciled (“non-dom”) tax status from April 6, 2025. This is a significant reform which will mean that all UK residents, regardless of their domicile, will be taxed on their worldwide income.

Current Tax Rules In The UK For Non-Domiciled Individuals

Under the current tax rules Australians who live in the UK are taxed according to their domicile status and the nature of their income. An Australian who is not domiciled in the UK may make a claim to be taxed on foreign income on a remittance basis, meaning you are only taxed on any UK-source income and gains plus any foreign income remitted to the UK.

They are also able to return home to Australia without worrying about any ongoing impact of UK taxes for anything other than assets that remain in the UK.

How The UK Tax Rules Are Changing

There are a number of key aspects of the proposed changes which could have a significant impact on Australians in the UK. These include:

1. Abolition Of The Remittance Basis

Under the new system, individuals will be taxed on their worldwide income, similar to the way that Australian residents are taxed on their worldwide income. This means that while living in the UK you will need to include any income that you earn from Australian investments or income sources in other countries, even if you don’t bring that money into the UK.

2. Introduction Of A Four-Year Foreign Income And Gains Regime

On the positive side, new arrivals to the UK, who have not been UK tax residents in the previous ten consecutive years, will benefit from a new four-year period during which they receive 100% relief on foreign income and gains. This relief applies irrespective of whether the income is remitted to the UK. This effectively allows individuals to live in the UK for 4 years without having to worry about the consequences of bringing in their overseas income, and may make it more appealing for Australians to live in the UK on a short term basis that does not exceed this four year period. 

3. Imposing Inheritance Tax (IHT) Even After Departure From The UK

The domicile-based system for IHT will be replaced with a residence-based system. In addition, expats who return to Australia after the new rules are in place may be exposed to IHT for up to 10 years after leaving the UK. This makes estate planning more complex for any Australians living in or returning from the UK.

4. Capital Gains (CGT) On Worldwide Capital Gains

Australians who previously benefited from the remittance basis will now face UK CGT on all gains from worldwide assets, even if those gains are not brought into the UK.

Transitional Rules

There are a number of transitional rules that will help ease UK residents into the new tax system.

Individuals who have previously been non-domiciled and used the remittance basis of taxation will have the option to value their foreign capital assets as of April 5, 2017. This creates a new capital base value to avoid CGT applications on the increase of value up to that date.

Current non-dom individuals will also have access to a transitional discounted tax rates on their previously unremitted foreign income and gains until the 2028 tax year.

Practical Steps To Take If You Stay In The UK After April 6, 2025

Australians who are currently non-domiciled residents of the UK, who decide to stay in the UK, should take practical steps to minimise their UK tax exposure and optimise their financial position. Key actions include:

1. Revaluing assets held outside the UK prior to April 2017 for CGT purposes.
2. Selling assets before April 2025 if advantageous.
3. Utilising transitional tax reliefs by obtaining the right advice from a tax specialist.
4. Maximising the four-year tax exemption (if eligible).
5. Reviewing investment strategies, retirement planning and estate planning strategies to factor in the new tax consequences of remaining in the UK.
6. When assessing the timing of potentially returning to Australia, consider the impact of Inheritance taxes if you live in the UK for 10 years or more.
7. Keep clear records and obtain up to date tax advice to mitigate tax consequences.

It is important to engage an international tax specialist to complete a personalised assessment for tax planning in your specific situation.

Revalue Australian (And Other Foreign) Assets

You should obtain formal or independent valuations for properties, shares, and other investments as of 6 April 2017.

The UK is offering a one-time rebasing relief, allowing individuals who previously used the remittance basis to revalue their foreign assets to April 6, 2017, for Capital Gains Tax (CGT) purposes. This means only gains accrued after April 6, 2017, will be subject to UK CGT when the asset is sold. This relief is not applicable if you were deemed to be domiciled at some point between 6 April 2017 and the introduction of the new tax laws on 6 April 2025.

Plan Asset Sales Before April 2025

If you are planning to sell Australian assets:

a) Consider if there is an overall benefit in selling these assets before April 6, 2025 to avoid UK CGT.

b) If selling after April 2025, use the rebasing relief to reduce taxable gains.

c) Review whether holding assets via a trust or corporate structure might help in specific cases. If so, it may be possible to sell individually owned assets to a corporate structure that you control prior to April 6 2025.

After April 2025, all worldwide capital gains (including on Australian assets) will be taxed in the UK unless you are living in the UK for less than 4 years.

Use Transitional Tax Discounts

Take advantage of any transitional rules where possible.

a)    If receiving Australian rental income, dividends, or business profits, consider bringing forward earnings to take advantage of this discount.

b) If withdrawing funds from an Australian trust or investment portfolio, consider timing withdrawals within this period.

For tax relief that is based on timing and access to transitional rules it is important to obtain correct and up to date tax information from the relevant tax specialist.

Consider How To Utilise The Four-Year Foreign Income And Gains Exemption For New Arrivals

If you have not been a UK resident in the previous 10 years then you can utilise the new four-year foreign income exemption.

a) New and recent arrivals in the UK should utilise this period of exemption to plan and structure income sources for optimal tax outcomes.

b) Where you have control over timing of income, consider triggering capital gains or significant foreign income events within the four-year exemption period.

Notably, under the new rules the four-year exemption applies regardless of whether the funds are brought into the UK. This means that any Australians who were not UK tax residents in the previous 10 years will not be taxed on foreign income or gains for their first four years in the UK. This gives Australians a good opportunity to live in the UK on a short-term basis without being impacted by the new rules.

Review Australian Superannuation And Pension Taxation

Engage a tax specialist to complete tax planning strategies for your retirement and review any current and upcoming lump sum or pension income.

a) Obtain long term advice on tax planning strategies that take into consideration the way the new rules will impact any UK tax on lump sum withdrawals or pension income from Australian super funds.

b) If applicable, time superannuation withdrawals strategically before tax rates increase.

c) Consider the types of investment income you are currently earning from Australia. Understanding the tax consequences of these changes gives you the opportunity to assess optimising your ongoing investment and income strategies.

With the tax rules changing, it is important to understand how this could impact your long-term and immediate investment and retirement plans so you can make informed decisions about your finances.

Plan For UK Inheritance Tax (IHT) On Worldwide Assets

The UK imposes an inheritance tax (IHT). Under the new rules IHT will apply to worldwide assets.

a) Consider trusts or corporate structures to protect assets from UK IHT.

b) Review wills and estate planning to align with both UK and Australian tax laws.

c) If planning to leave the UK, remember IHT exposure may continue for 10 years after departure.

Under the new rules, individuals who have been a UK tax resident for 10+ years will be subject to IHT on worldwide assets. This includes Australian property, shares, and businesses. It is therefore important to revise your inheritance strategies if you will be a long term UK tax resident. You should also consider the impact of IHT when assessing timing for making a move back to Australia, as you may be able to avoid IHT by making an earlier move.

Maximise Double Tax Relief And Tax Credits

Talk to an international tax specialist to ensure you have appropriate, current and up to date tax planning strategies in place that consider the new rules. With the UK taxing worldwide income it will be more important to utilise double taxation relief provisions to minimise your tax exposure.

a) Keep detailed tax records to claim foreign tax credits efficiently.

b) Engage an international tax advisor to structure investments efficiently.

The UK-Australia DTA can mitigate double taxation, but relief must be claimed properly as certain income types (e.g., rental income) may still be taxable in both countries.

In Summary 

The new rules will have a significant impact on Australians living in the UK, both while they are living in the UK, and when they return home. For more about the tax implications of returning to Australia under the new rules see our article Australians Living In The UK: Returning To Australia Under The New Non-Dom UK Rules.

While the new rules may reduce the tax impact of residing in the UK for a period of less than four years, long-term residents will now be liable for UK taxes on their worldwide income. This is a significant departure from the current income remittance rules and will mean any Australian currently residing in the UK should seek tax advice regarding their worldwide assets and investments.