The IRS enforcement environment in 2026 is moving in two directions at once. On one hand, the agency has publicly committed to higher audit coverage for large corporations, complex partnerships, and very high-income individuals. On the other hand, the IRS is operating with a materially smaller workforce than it had at the beginning of 2025.
This does not mean the IRS is stepping back from enforcement. It means enforcement is becoming more selective, more data-driven, and more focused on taxpayers and transactions that the agency believes offer the highest compliance risk or revenue potential. For many taxpayers, the risk is not simply that the IRS will open more audits. The greater risk is that, when an audit is opened, the IRS may already have substantial third-party data, foreign account information, digital asset reporting, Form 1099 data, K-1 information, and statistical comparisons against similar taxpayers.
The result is a different type of examination environment. Fewer taxpayers may be selected overall, but those selected can expect a more focused and more technically demanding audit.
The IRS’s Stated Enforcement Priorities
The IRS has continued to identify three categories of taxpayers for increased audit coverage: large corporations, large and complex partnerships, and wealthy individuals. At the same time, the IRS has stated that it does not intend to increase audit rates for small businesses and taxpayers making under $400,000, relative to historical levels.
For large corporations with assets over $250 million, the IRS has stated that it intends to increase the audit rate from 8.8% to 22.6% by the 2026 tax year. These examinations are expected to remain specialist-driven and document-intensive, with continued attention on transfer pricing, intercompany transactions, foreign tax credits, basis-shifting transactions, and complex entity structures. The IRS’s own budget materials note that large corporate examinations have an average case cycle time of approximately 36 months, which means staffing and training changes can affect examination capacity over several years.
For large and complex partnerships with assets over $10 million, the IRS has stated that it intends to increase audit rates from 0.1% to 1.0%, a nearly tenfold increase. This remains one of the most significant enforcement developments for pass-through entities. Partnerships have historically been difficult to examine because of tiered ownership, special allocations, partner-level tax attributes, capital account issues, debt allocations, and transfers of partnership interests. The centralized partnership audit regime gives the IRS a more efficient procedural path to examine and adjust partnership items at the entity level.
For wealthy individuals, the IRS has stated that it intends to increase audit coverage for taxpayers with total positive income over $10 million to 16.5% by the 2026 tax year. These examinations often extend beyond the Form 1040 itself and into related entities, trusts, private investment vehicles, foreign accounts, charitable structures, real estate activities, and pass-through income reported on Schedules K-1.
The DOGE Effect: Fewer Agents, Smarter Tools
The IRS’s enforcement plans must be read together with the agency’s staffing reductions. The Treasury Inspector General for Tax Administration reported that between January 2025 and May 2025, the IRS workforce decreased from approximately 103,000 to 77,000 employees, a 25% reduction. Those employees either separated from the agency or accepted deferred resignation or other incentive offers.
Reuters reported that IRS enforcement revenue declined by 5%, or almost $5 billion, in the fiscal year, and that the agency opened more than 120,000 fewer tax audits in 2025 than in the prior year. Reuters also reported that the IRS enforcement function lost roughly 5,000 employees heading into 2026 and is projected to lose another 5,000 in the coming year. Longer term, the agency reportedly aims to employ approximately 69,000 people by fiscal year 2027, compared with a recent peak of 103,000 employees.
Despite these reductions, the IRS has not signaled an end to enforcement. Treasury officials told Reuters that enforcement revenue increased 12% in the first five months of fiscal year 2026, which began October 1. The apparent strategy is to concentrate limited resources on cases that appear more likely to produce significant adjustments.
The mechanism for that recovery is technology. IRS leadership under CEO Frank Bisignano has doubled down on artificial intelligence and data analytics to compensate for lost staffing. The agency now uses AI-powered tools to:
- Cross-match returns against third-party data (W-2s, 1099s, brokerage records, digital asset reports, and international FATCA feeds) at unprecedented scale
- Identify statistical anomalies in deductions, income characterization, and entity allocations relative to peer benchmarks
- Flag mismatches between FBAR/FATCA reporting and income tax return positions
- Prioritize audit case selection by estimated tax recovery potential
The net effect: the IRS is auditing less, but when it audits, it arrives better prepared, with more data, and with enforcement as its objective.
International Reporting Remains A Major Enforcement Risk
Cross-border compliance remains one of the IRS’s highest-priority enforcement areas in 2026. The FATCA network now spans over 110 jurisdictions, and the IRS receives automated account-level data from thousands of foreign financial institutions. Where that data does not reconcile with FBAR filings (FinCEN Form 114) or Form 8938, the IRS’s AI matching tools will surface the discrepancy.
Penalties for FBAR non-compliance are severe. Non-willful violations carry penalties up to $16,536 per annual report (following the Supreme Court’s 2023 Bittner decision, which confirmed the per-report rather than per-account penalty standard). Willful violations carry civil penalties of the greater of $165,353 or 50% of the account balance, plus potential criminal exposure. The IRS has a six-year statute of limitations for FBAR penalty assessments.
Taxpayers with unreported or inconsistently reported foreign accounts should evaluate corrective options before the IRS initiates contact. Once an examination begins, available options may become more limited and the risk profile can change quickly.
Digital Asset Reporting Is Entering A New Phase
Digital asset enforcement is also changing. Treasury and the IRS have issued final regulations requiring brokers to report certain digital asset sale and exchange transactions beginning with transactions that take place in calendar year 2025, reported on Form 1099-DA. Brokers must report gross proceeds for transactions effected on or after January 1, 2025.
The next stage begins with basis reporting. Basis reporting is required by certain brokers for transactions occurring on or after January 1, 2026. The 2026 Form 1099-DA instructions state that, for sales effected on or after January 1, 2026, brokers are not required to report basis information for digital assets that are noncovered securities, although they may voluntarily report that information and receive penalty protection if the appropriate box is checked.
This creates a new matching environment for cryptocurrency and other digital asset taxpayers. Many early digital asset filings were prepared with incomplete cost basis records, inconsistent wallet transfer tracking, exchange migration issues, staking income questions, NFT transactions, stablecoin transactions, or DeFi activity that was not reported consistently. The IRS will now have more third-party reporting to compare against Form 1040 digital asset disclosures, Schedule D, Form 8949, and other return positions.
Taxpayers should not assume that the absence of a Form 1099-DA means there is no reporting obligation. IRS guidance states that decentralized finance brokers and some foreign brokers are not required to file Form 1099-DA or furnish statements to taxpayers. The taxpayer remains responsible for accurate reporting even when no form is issued.
Pass-Through Entities Should Expect More Scrutiny
Partnerships and S corporations remain central enforcement targets because income, deductions, credits, and basis adjustments flow from the entity to the owner. A federal adjustment at the entity level can affect multiple owners, multiple tax years, and state tax reporting.
The IRS’s stated increase in audit coverage for partnerships with assets over $10 million is particularly important for partnerships with contributed property, special allocations, tiered structures, related-party transactions, debt allocations, Section 754 elections, Section 743(b) adjustments, carried interests, or significant capital account activity. The agency’s focus is not limited to whether income was reported. It also includes whether allocations have substantial economic effect, whether basis adjustments are properly calculated, whether liabilities are properly allocated, and whether transfers of partnership interests have been correctly reported.
California taxpayers should also consider state follow-on exposure. A federal partnership adjustment can create California issues involving California-source income, apportionment, withholding, composite filings, and pass-through entity tax positions. For multistate partnerships and owners, the federal audit may be only the first stage of a broader compliance review.
High-Income Individual Examinations Are Broader Than The Form 1040
For individuals with total positive income over $10 million, the IRS’s stated audit-rate increase to 16.5% means return preparation and supporting documentation are increasingly important. High-income examinations often involve more than the individual income tax return. The IRS may examine related entities, family partnerships, trusts, foundations, foreign accounts, private investment structures, aircraft or yacht expenses, real estate losses, charitable contributions, installment sale reporting, and related-party loans.
The IRS is also likely to compare reported income against third-party reporting and broader financial indicators. A taxpayer with significant assets, visible liquidity events, substantial debt service, or large lifestyle expenditures may face questions if the reported income profile does not appear consistent with available data.
For high-income taxpayers, contemporaneous documentation is essential. Large deductions, recurring business losses, nonstandard investment structures, foreign tax credit positions, treaty positions, and related-party arrangements should be supported before the return is filed. Reconstructed records are generally less persuasive than documentation prepared at the time of the transaction.
Employee Retention Credit Claims Remain High Risk
Employee Retention Credit enforcement remains a priority, particularly for claims prepared by promoters or filed late in the program. The IRS has issued FAQs addressing new ERC compliance provisions under the One Big Beautiful Bill. Those provisions affect ERC claims for the third and fourth quarters of 2021 filed after January 31, 2024.
Under Section 70605(d) of the OBBB, effective July 4, 2025, the IRS is prevented from allowing or refunding ERC claims for the third and fourth quarters of 2021 if those claims were filed after January 31, 2024, even if the employer otherwise met the eligibility requirements. The IRS guidance also states that the law strengthens compliance enforcement by imposing penalties on certain ERC promoters who fail to meet due diligence requirements when assisting with claims.
If an ERC claim is disallowed, the IRS states that the taxpayer will receive Letter 105-C, Claim Disallowed. A taxpayer may appeal to the IRS Independent Office of Appeals if the taxpayer believes the ERC claim was timely filed on or before January 31, 2024, and was improperly disallowed under Section 70605(d).
Employers with pending or previously paid ERC claims should review the quarter claimed, filing date, eligibility analysis, payroll records, government order support, gross receipts calculations, promoter involvement, and IRS correspondence. Claims based on broad supply-chain arguments, general economic disruption, or boilerplate shutdown narratives remain especially vulnerable.
Abusive Transactions Remain on the IRS Radar
Syndicated conservation easements, micro-captive insurance arrangements, monetized installment sale structures, and other listed or high-risk transactions remain enforcement priorities. Taxpayers who participated in these arrangements should not assume that the passage of time eliminates risk. Listed transaction reporting failures, promoter investigations, extended statutes, and penalty assertions can significantly increase exposure.
In many of these cases, the IRS may examine not only the claimed tax benefit, but also the taxpayer’s reporting obligations, reliance on professional advice, valuation support, transaction documents, and communications with promoters or advisors. Privilege and document production issues should be considered early, not after the examination is underway.
What Taxpayers Should Expect If Examined
The character of IRS examinations has changed. Audits that once began as broad information-gathering inquiries are now more likely to begin with a defined enforcement objective. Examiners may have already reviewed third-party reporting, foreign account information, digital asset records, K-1 reporting, and peer comparisons before contacting the taxpayer.
Initial Information Document Requests may therefore be more specific and more demanding. Taxpayers should expect requests for original records, contemporaneous workpapers, transaction documents, account statements, basis schedules, foreign reporting support, and communications relevant to the return position. For cross-border taxpayers, an income tax issue can quickly become an information reporting issue, and an information reporting issue can lead to broader questions about unreported income, foreign tax credits, GILTI, Subpart F, PFICs, treaty positions, or FBAR compliance.
Taxpayers should also consider privilege before responding to an IRS notice. Communications with a CPA are generally not protected in the same way as communications with legal counsel. Sensitive matters involving offshore reporting, promoter transactions, digital assets, high-dollar partnership positions, or potential penalties should be reviewed carefully before documents are produced.
Practical Preparation For 2026
The most effective risk management is proactive. Taxpayers in the IRS’s priority categories should review open tax years before receiving an IRS notice. That review should focus on material filing positions, missing or inconsistent information returns, foreign account reporting gaps, digital asset reporting issues, partnership basis matters, large deductions, related-party transactions, ERC claims, and state follow-on exposure.
Taxpayers should also reconcile returns against information the IRS is likely to receive independently. This includes Forms W-2, Forms 1099, Schedules K-1, brokerage statements, Form 1099-DA, FATCA data, mortgage interest reporting, charitable contribution acknowledgments, payroll tax filings, and state tax filings. Because the IRS is using statistical and machine-learning techniques in audit selection, mismatches and outlier positions are more likely to be identified.
International taxpayers should maintain organized workpapers for FBAR filings, Form 8938, Form 5471, Form 8865, Form 3520, Form 3520-A, PFIC reporting, foreign tax credit calculations, GILTI, Subpart F, Section 962 elections, treaty-based return positions, foreign pensions, and foreign trust analysis. The IRS’s active LB&I campaigns show continued attention to FATCA reporting, offshore private banking, foreign earned income exclusion claims, and Forms 5471.
Digital asset taxpayers should review exchange histories, wallet transfers, cost basis records, staking income, airdrops, NFTs, stablecoin transactions, DeFi activity, lost wallets, and prior-year reporting consistency. Gross proceeds reporting began with 2025 transactions, and basis reporting for certain covered digital asset transactions begins with transactions occurring on or after January 1, 2026.
Taxpayers with ERC claims should separately review eligibility and timing. Section 70605(d) prevents the IRS from allowing or refunding ERC claims for the third and fourth quarters of 2021 after July 4, 2025, if the claims were filed after January 31, 2024. Employers should retain payroll records, gross receipts calculations, government order analysis, copies of amended payroll tax returns, IRS correspondence, and any promoter engagement materials.
Final Thoughts
The 2026 enforcement environment is not defined by audit volume alone. The IRS is smaller than it was at the start of 2025, but it is relying more heavily on data matching, artificial intelligence, third-party reporting, and targeted case selection.
Taxpayers with clean records, consistent reporting, and contemporaneous documentation are in a stronger position if selected for examination. Taxpayers with foreign reporting gaps, digital asset reporting issues, unsupported pass-through positions, high-income return anomalies, or promoter-driven ERC claims should evaluate those risks before the IRS contacts them.

