IRS Audits

Chances of Being Audited in 2027: Your Real Odds

By Angeline Balsitis, EA · Reviewed by Melissa Ly, Chief Tax Officer · Updated October 8, 2025 · Editorial Standards

The real numbers behind your chances of being audited

If you're picturing an agent at your kitchen table, take a breath. That almost never happens. The overall audit rate for individual returns has hovered well below 1% for years — and most of those "audits" are not in-person visits at all. They're letters.

Roughly three out of four IRS exams are correspondence audits: the IRS mails you a letter asking you to prove one or two items, you send documents back, and it's done. A full field audit, where an agent reviews your books in person, is rare and usually reserved for complex business returns. You can see how the IRS describes the process on its own IRS audits page, and the year-by-year statistics live in the IRS Data Book.

Audit odds by income (a rough map)

Audit risk isn't spread evenly. Historically, the rate looks like a "smile" — higher at the very bottom and the very top, lowest in the middle. Here's the general shape that has held for years:

• Middle incomes (roughly $25k–$200k): the lowest odds of all — often a fraction of 1%. This is where most taxpayers live.
• Earned Income Tax Credit (EITC) claimants: audited at a higher rate than middle earners, almost entirely by mail, because refundable credits are checked closely.
• High earners ($500k+): audit rates climb as income rises.
• Very high earners ($1M+): the highest odds — sometimes several percent — because the dollars (and the complexity) are larger.

For a typical W-2 household, the chance of being audited in 2027 is small enough that fear of it shouldn't drive your decisions. Filing accurately and on time matters far more than the long-shot odds.

What actually triggers an audit

The IRS uses computer scoring and document matching to flag returns. You don't need to be doing anything wrong to get a letter — but certain patterns raise your audit risk:

• Income that doesn't match. Every W-2 and 1099 you receive is also sent to the IRS. If your return leaves something off, a computer notices.
• Deductions that are large for your income. Charitable gifts or business expenses far above the norm for your bracket draw attention.
• Big or repeated business losses, especially on a Schedule C that looks more like a hobby than a business.
• Round numbers everywhere. Real expenses rarely land on exactly $5,000 or $10,000.
• Refundable credits like the EITC, which are verified more closely than ordinary deductions.
• Large cash transactions and unreported foreign accounts.

Important: a simple math mistake usually triggers an automatic correction notice — like a CP11 or CP12 — not an audit. And a mismatch between your return and an IRS record usually triggers a CP2000 under-reporter notice, which is not a formal audit either.

"Audit" vs. the notices people mistake for audits

Most letters that scare people aren't audits at all. Knowing the difference keeps you calm and pointed at the right fix:

1. Math-error notice (CP11/CP12) — the IRS corrected an arithmetic mistake. Not an audit.
2. CP2000 under-reporter notice — a number didn't match a W-2 or 1099. Automated, and you can dispute it. Not an audit.
3. Correspondence audit (by mail) — the real thing, but limited: prove one or two items and you're done.
4. Office or field audit — a broader, in-person review. Rare, and usually for complex or business returns.

Even when a genuine audit lands, it is a process with deadlines and appeal rights — not a punishment. If you ever disagree with the outcome, audit reconsideration may let you reopen it with new documents.

Will IRS staffing changes lower the odds in 2027?

You may have read that IRS budget and staffing shifts will make audits vanish. Be careful with that hope. The audits that depend on human agents — complex field exams — may dip when headcount falls. But the bulk of enforcement runs on computers: matching notices, math-error corrections, and mail audits keep going regardless of who's in the building. We break this down in our guide on whether IRS layoffs mean you'll still get audited. The honest takeaway: file an accurate, complete return and the staffing question barely matters to you.

How to keep your 2027 return off the radar, step by step

1. Report every form. Pull your IRS wage and income transcript before you file so nothing the IRS already has is missing from your return.
2. Keep receipts for big deductions. If you claim it, be ready to prove it — especially charitable gifts and business expenses.
3. Avoid round numbers. Use your actual figures, to the dollar.
4. File on time, even if you can't pay. Not filing keeps the audit window open forever and adds the larger failure-to-file penalty.
5. Don't panic at a notice. Read it, match it to your records, and respond by the date printed on it. Most issues are resolved with one letter.
6. Get a review for anything complex. Self-employment, rental income, big losses, or large credits are worth a second set of eyes before filing.

Your audit questions, answered

This guide is general information, not tax or legal advice for your specific situation. Eligibility for IRS programs depends on individual facts and circumstances; no outcome is guaranteed.

Related: learn how far back the IRS can audit, what to do if you got a CP2000 notice, or browse all guides.