The New IRS: Fewer Auditors, Smarter Algorithms. What High Earners Need to Know

Leisl L. Langevin, CFP®, CDFA®
Managing Partner, Advisory

SUMMARY:
IRS staffing is down roughly 27% and new audits of filers reporting $10 million or more have been cut to a fraction of prior targets. That does not mean high earners are off the radar. The agency is leaning on artificial intelligence, advanced analytics, and automated document matching, which means the first contact is increasingly a computer-generated notice rather than a revenue agent. Here is what draws algorithmic scrutiny and what documentation high-net-worth taxpayers and business owners should have ready.

There is an old rule of thumb about enforcement: fewer police on the road means fewer speeding tickets. That logic no longer holds at the IRS.

The agency is smaller than it has been in decades. It also has better software. For high earners, business owners, and anyone filing a return with partnership income, S-corporation activity, or a long list of 1099s and K-1s, that combination changes the shape of the risk rather than removing it. The odds of a revenue agent knocking on your door have dropped. The odds of an automated system noticing a mismatch have not.

What Actually Changed at the IRS

The workforce shrank quickly. The agency started 2025 with about 102,000 employees and finished the year with roughly 74,000, a reduction of about 27%, concentrated in experienced enforcement and technical staff. Those are the people who work complicated returns.¹

Audit targets fell alongside them. The IRS began 3,692 new audits of filers reporting at least $10 million in income in fiscal year 2025, roughly half the 6,786 it had originally planned. For fiscal year 2026, the target is 2,264. Partnership audit targets were reduced as well, even though partnerships are an area with substantial compliance risk.²

Then comes the pivot. IRS leadership has told Congress the agency is modernizing enforcement through expanded use of artificial intelligence, advanced analytics, and improved data integration, tools intended to identify high-risk noncompliance and focus resources on higher-value cases. Roughly 80% of IRS audits already arrive by mail rather than in person. Increasingly, the first contact is a notice generated by a system, not a letter from someone who read your return.³

Four Things the Algorithms Look At First

1. Third-party document matching. W-2s, 1099s, K-1s, brokerage statements, and digital asset reporting all reach the IRS independently of your return. Automated matching compares the two. It does not require judgment, only a difference. K-1s that arrive late or are amended after you file are a common source of mismatch.

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2. Flow-through income. Partnership and S-corporation returns carry the most moving parts: basis, at-risk limits, passive activity rules, and reasonable compensation for owner-employees. Analytics tools are built to find outliers here because the dollars per case are large.

3. Deductions outside the expected range. Charitable contributions well above the norm for your income level, large non-cash gifts, vehicle and aircraft business use, home office claims, and real estate professional status all draw attention. None of these is improper. Each carries a documentation standard that is easy to fall short of.

4. Foreign accounts and digital assets. Global exchange reporting and foreign account disclosure rules give the IRS comparison points it did not have a decade ago. Penalties in this category are severe relative to the balances involved.

Why Documentation Matters More, Not Less

When a human examiner works a case, there is room to explain. When an automated notice arrives, you are responding to a computed difference inside a fixed window, often 30 days. Miss the window and a proposed adjustment can become an assessment.

Two consequences follow. First, contemporaneous records beat reconstructed ones every time: mileage logs, qualified appraisals for non-cash gifts, board minutes supporting compensation decisions, and basis schedules updated annually rather than rebuilt under pressure. Second, response speed matters. Notices go to the address on the return, and if that routing is stale, the clock runs without you.

What to Do This Year

Reconcile before you file. Match every third-party form to the return line by line. If a K-1 is outstanding, extending may be preferable to filing on an estimate.
Keep a running basis file. For each partnership and S-corporation interest, maintain the schedule annually instead of reconstructing it years later.
Document the judgment calls. Where a position depends on facts, such as hours worked, business purpose, or valuation, record the support in the year it happens.
Confirm your address and check your IRS online account. Notices are the new front door.
Coordinate your CPA and your financial advisor inside the tax year. Charitable timing, Roth conversion sizing, business distributions, and entity decisions all read differently on paper than in a conversation held the week before April 15.

Fewer auditors is not the same as less scrutiny. It is a different kind of scrutiny, one that reads your return against everyone else’s data before anyone reads it as a story. The families and business owners who fare best in that environment are not the ones taking the most aggressive positions. They are the ones whose files can answer a question quickly.

At WHZ Strategic Wealth Advisors, our Plan Well. Invest Well. Live Well. process is built to evaluate opportunities and exposures like these in context. The goal is not simply to lower taxes in one year. It is to build a coordinated, tax-aware strategy that holds up under review and supports the decisions that matter most to your family or your business.

Schedule a complimentary discovery session now or call us at (860) 928-2341 to review how your filing positions, entity structure, and documentation fit within your broader plan. Together, we can help you move forward with Absolute Confidence. Unwavering Partnership. For Life.

Authored by Leisl L. Langevin, CFP® CDFA®. AI may have been used in the research and initial drafting of this piece. The fees, expenses, and features of 529 plans can vary from state to state. 529 plans involve investment risk, including the possible loss of funds. There is no guarantee that an education-funding goal will be met. In order to be federally tax free, earnings must be used to pay for qualified education expenses. The earnings portion of a nonqualified withdrawal will be subject to ordinary income tax at the recipient’s marginal rate and subject to a 10 percent penalty. By investing in a plan outside your state of residence, you may lose any state tax benefits. 529 plans are subject to enrollment, maintenance, and administration/management fees and expenses. WHZ Strategic Wealth Advisors does not provide legal or tax advice. You should consult a legal or tax professional regarding your individual situation. Investments are subject to risk, including the loss of principal. Past performance is no guarantee of future results.  Securities and advisory services offered through Commonwealth Financial Network®, Member FINRA/SIPC, a Registered Investment Adviser. 697 Pomfret Street, Pomfret Center, CT 06259 and 392-A Merrow Road, Tolland, CT 06084, 860.928.2341. http://www.whzwealth.com.

1 National Taxpayer Advocate, "2025 Annual Report to Congress," Taxpayer Advocate Service, January 2026. https://www.taxpayeradvocate.irs.gov/news/tax-news/2026-arc-press-release/2026/01/

2 Tax Law Center at NYU Law, "The 2026 Tax Filing Season Has Had Serious Problems and More Tax Administration Challenges Are on the Horizon," 2026, citing IRS data. https://taxlawcenter.org/blog/the-2026-tax-filing-season-has-had-serious-problems-and-more-tax-administration-challenges-are-on-the-horizon

3 Frank J. Bisignano, Chief Executive Officer, Internal Revenue Service, written testimony before the House Ways and Means Committee, March 4, 2026. https://www.irs.gov/newsroom/written-testimony-of-the-honorable-frank-j-bisignano-chief-executive-officer-internal-revenue-service-before-the-house-ways-and-means-committee-to-discuss-the-2026-tax-filing-season-and-irs-operations

RELATED FAQs

Are IRS audits of high earners really down in 2026?

Yes. The IRS targeted 2,264 new audits of filers reporting $10 million or more in income for fiscal year 2026, down from 3,692 actual audit starts in fiscal year 2025 and well below the 6,786 originally planned for that year.

Does a smaller IRS mean less audit risk for high-net-worth taxpayers?

Not necessarily. The IRS has stated it is expanding its use of artificial intelligence and data analytics for enforcement, and roughly 80% of audits now occur by mail through automated matching rather than in-person examination.

What triggers an automated IRS notice?

Most commonly a mismatch between your return and third-party reporting such as 1099s, K-1s, brokerage statements, or digital asset reports. The system flags the difference regardless of whether the underlying position is correct.

How long do I have to respond to an IRS notice?

Response windows are typically 30 days from the date on the notice. Missing the deadline can allow a proposed adjustment to become an assessment, which is one reason current mailing address information matters.

Which return types draw the most algorithmic scrutiny?

Returns with partnership or S-corporation income, significant investment income, foreign accounts, digital assets, or deductions that fall outside the expected range for the taxpayer’s income level.