A letter asking you to meet an IRS revenue agent at your business or home changes the nature of an audit. A mail audit is simple: you send documents and wait.
A field examination is different. An agent sits across from you, asks questions in real time, may walk through your operation, and can follow any thread that looks interesting.
At Dahir Tax and Accounting Firm, we represent taxpayers in these examinations. This guide covers what the IRS does in a field audit, which rights federal law gives you, and where a representative makes a measurable difference.
Key Points
- Field audits made up about 22% of closed IRS audits in fiscal year 2024 but produced roughly $23 billion of the $29 billion in recommended additional tax.
- A representative holding a signed Form 2848 can attend the examination in your place, and federal law lets you pause an interview to consult one.
What the IRS Numbers Show About Field Audits
The IRS Data Book for fiscal year 2024 breaks down the audits the agency closed that year. The split between field and correspondence work shows where the money sits.
| Fiscal Year 2024 Metric | Field Audits | Correspondence Audits |
|---|---|---|
| Share of closed audits | 22.1% | 77.9% |
| Recommended additional tax | About $23.0 billion | A little over $6 billion |
| Estimated audits closed (our calculation) | About 111,700 | About 393,800 |
| Average recommended tax per audit (our calculation) | About $206,000 | About $15,000 |
The IRS reported 505,514 total closed audits. We applied the published percentages to reach the per audit averages above, so treat them as rough estimates. Even with that caveat, the gap is hard to ignore. The average field audit recommended more than thirteen times the tax of the average mail audit.
Income also drives field audit risk. For tax year 2019 returns, the IRS examined 11.0% of individuals reporting total positive income of $10 million or more, 3.1% of those between $5 million and $10 million, and 1.6% of those between $1 million and $5 million.
Business owners, real estate investors, and anyone with significant cash receipts show up in field work far more often than W-2 employees.
How a Field Examination Actually Works
Revenue agents run most field audits. Under Treasury Regulation 301.7605-1, the IRS generally chooses where the exam happens, and for a business that usually means your place of business. You can ask to move it.
Our office often requests that the agent meet at our location instead, which keeps the agent away from your employees and customers.
The first meeting almost always opens with an initial interview. Expect questions about:
- How your business started, who owns it, and how it earns money
- Every bank account, business and personal, and who can sign on each
- How you handle cash, deposits, and sales records
- Your personal living expenses, including housing, vehicles, and travel
- Who prepared the return and what records they used
That last group of questions surprises people. Agents compare what you spend to what you report. Section 7602(e) of the Internal Revenue Code limits the IRS from using financial status or economic reality techniques to find unreported income unless the agent has a reasonable indication that unreported income likely exists.
A casual answer about a new boat or a cash side job can give the agent exactly that indication.
After the interview, the agent issues Information Document Requests on Form 4564. Each IDR lists specific records and a due date. The scope of the audit tends to grow or shrink depending on how you answer these requests.
Your Rights During an In Person Exam
Congress wrote several protections into Section 7521 of the Internal Revenue Code. The IRS also lists ten taxpayer rights in Publication 1, and Publication 556 explains the exam and appeal process.
- You can have an attorney, CPA, or enrolled agent represent you with a signed Form 2848.
- Your representative can attend meetings without you, unless the IRS issues an administrative summons for you personally.
- You can stop an interview at any point to consult your representative, again with the summons exception.
- You can make an audio recording of the interview if you give the agent advance notice (the Internal Revenue Manual calls for 10 calendar days).
- You can take a disagreement to the IRS Independent Office of Appeals before paying.
Most taxpayers never use these rights because nobody tells them the rights exist.
What Representation Looks Like From Our Side
Here is how we typically run a field exam engagement for a client.
- We file Form 2848 and take over all contact with the agent, so the IRS stops calling you directly.
- We review the return under audit, plus the years before and after it, before the first meeting. Agents often look at adjacent years, and we want to see what they will see.
- We prepare you for any interview you must attend. Short, accurate answers. No guessing.
- We answer each IDR with exactly what it asks for, organized and indexed, on time.
- We track every proposed adjustment in writing and push back with law and documentation where the agent gets it wrong.
Our honest opinion: the biggest savings in field audits rarely come from clever arguments at the end.
They come from controlling scope at the beginning. An audit that stays limited to two line items costs far less than one that expands into three years and a personal bank deposit analysis.
Where Taxpayers Hurt Themselves
We see the same mistakes again and again.
Handing over a banker’s box of records when the IDR asked for one account. Chatting with the agent during a facility tour. Missing an IDR deadline without calling first. Signing Form 4549, the examination changes report, on the spot because the agent said it would “wrap things up.”
Signing Form 4549 means you agree to the adjustments. Once you sign, your appeal options narrow sharply.
Agents also sometimes ask taxpayers to sign Form 872, which extends the statute of limitations. The normal assessment window runs three years from filing and six years if you omitted more than 25% of gross income.
You have the right to refuse, limit, or restrict an extension, but a flat refusal can push the agent to issue a notice of deficiency based on incomplete information. We decide this one case by case.
If the Exam Ends in Disagreement
| IRS Notice | What It Means | Your Window |
|---|---|---|
| 30-day letter | Proposed adjustments with an offer to request an Appeals conference | 30 days to respond |
| Notice of deficiency (90-day letter) | Formal determination of tax owed | 90 days to petition the U.S. Tax Court (150 if addressed outside the U.S.) |
Penalties raise the stakes. The accuracy related penalty under Section 6662 adds 20% of the underpayment in many cases, plus interest from the original due date. A strong record built during the exam gives you the best shot at penalty relief later.
Conclusion
A field audit rewards preparation and punishes improvisation, and the IRS data shows those exams carry far more money than mail audits.
If you received a field exam letter, Dahir Tax and Accounting Firm can step in as your representative before the first meeting.
