How to Respond to an IRS Audit Notice: A Step-by-Step Guide

To respond to an IRS audit notice, first read the letter to identify which of the three audit types it is (correspondence, office, or field) and the exact response deadline. Then gather only the documents the IRS requests, organize them by the items in the notice, and respond in writing by certified mail with copies — never originals. For anything beyond a simple, well-documented correspondence audit, or when significant money is at stake, most tax professionals recommend having a tax attorney, CPA, or enrolled agent represent you before you respond.

This article is general legal information, not legal advice. Laws vary by state and situation, and reading it does not create an attorney-client relationship. For advice about your case, talk to a licensed attorney.

Key Takeaways

• An IRS audit notice arrives by mail, never by an unsolicited call, text, or email. Its notice or letter number (upper right corner) tells you what kind of examination it is — verify it at irs.gov.
• There are three audit types: correspondence (by mail, the most common), office (you go to an IRS office), and field (an agent comes to you). The stakes and strategy differ for each.
• The notice states a response deadline — commonly around 30 days. Missing it can trigger a default assessment and erode your appeal rights, so calendar it immediately.
• Send copies, never originals, by certified mail, keep a full copy of what you submit, and respond only to the items the IRS actually raised.
• Being audited does not mean you did anything wrong. Many audits end in no change or even a refund, and roughly three-quarters are handled entirely by mail.
• You have the right to representation and to appeal. Authorize a tax attorney, CPA, or enrolled agent with Form 2848, and verify current rules at irs.gov, since timelines change and states run their own audits.

What an IRS Audit Notice Actually Is

An IRS audit — the IRS calls it an examination — is a review of a tax return to confirm the income, deductions, and credits you reported are accurate and the tax was figured correctly. The audit notice opens that process, telling you the tax year under review, the specific items in question, the documents the IRS wants, and the deadline to respond.

Two misunderstandings are worth clearing up. First, an audit is not an accusation of a crime — returns are flagged through computer scoring, statistical sampling, document mismatches (like a 1099 that does not match your return), and random selection, and many close with no additional tax owed. Second, the IRS does not open audits by phone, text, or email; a caller demanding immediate payment over an "audit" is almost certainly a scam. The code in the upper right of the page — the notice or letter number — identifies exactly what the IRS sent; look it up at irs.gov before you do anything else.

The Three Types of IRS Audits

The most important thing the notice tells you is which type of audit you are facing — it dictates where it happens, how complex it is, and how seriously to consider representation.

Audit Type	How It Happens	Typical Complexity	Who Conducts It	Representation Commonly Advised
Correspondence audit	Entirely by mail; you send documents back	Low — usually one or a few specific items	IRS tax examiner (by mail)	Often optional for simple, well-documented items
Office audit	You bring records to a local IRS office	Moderate — several issues or a fuller return review	IRS tax compliance officer	Frequently recommended
Field audit	An IRS agent visits your home, business, or representative's office	High — complex returns, businesses, many issues	IRS revenue agent	Strongly recommended

Correspondence Audits (By Mail)

The correspondence audit is by far the most common — the IRS handles roughly three out of four examinations this way. It mails a letter asking for documentation on a limited number of items, such as a deduction it cannot match or income that does not line up with a third-party form, and you respond by mail with copies. Many taxpayers handle a single, well-documented issue alone; if the amount is large, the records are messy, or multiple years are involved, at least consult a tax professional.

Office and Field Audits (In Person)

An office audit asks you to bring specific records to a local IRS office, usually covering more than one issue or a deeper look at a return. A field audit is the most comprehensive: an IRS revenue agent examines records at your home, business, or representative's office, and the review can last weeks or months. Because both involve in-person interviews, representation is commonly advised. A key rule applies to each: do not volunteer to expand the scope. Answer what is asked, produce what is requested, and let your representative handle the rest.

Step-by-Step: How to Respond to an IRS Audit Notice

Here is the general sequence once an audit notice arrives — a roadmap, not advice on your specific facts.

1. Confirm the notice is real and read it closely. Check the notice or letter number against irs.gov, and identify the tax year, audit type, items in question, and deadline. Keep the envelope — the postmark can matter.
2. Calendar the deadline immediately. Most initial notices give about 30 days; request an extension before it passes if you need one.
3. Gather only the records requested. Locate receipts, bank statements, invoices, mileage logs, and other proof for the items under review, organized by the notice's categories. Unrelated documents can widen the audit's scope.
4. Decide whether to handle it yourself or get representation. Self-representation may be fine for a simple correspondence audit. For office or field audits, multiple years, large amounts, or anything uncertain, consult a tax attorney, CPA, or enrolled agent and authorize them with Form 2848 (Power of Attorney).
5. Respond in writing, by certified mail, with copies. Send a cover letter, copies of your documents, and the IRS's response form by certified mail with return receipt, and keep a full copy. Never send originals, and answer only what is asked.
6. Review the results and know your next move. The audit ends as no change, agreed, or disagreed. If you disagree, you have appeal rights — do not sign an agreement just to make it stop.

Deadlines That Matter (Verify in Your Situation)

Tax deadlines are strict, and missing one can quietly close off your best options. Treat the figures below as general patterns to confirm against your own notice.

• Initial response deadline: commonly around 30 days from the date on the notice. The exact window is printed on your letter.
• 30-day letter (examination report): if you disagree with proposed changes, you typically have about 30 days to request a conference with the IRS Independent Office of Appeals.
• Notice of deficiency (90-day letter): if the dispute is not resolved, this gives you a set period — generally 90 days (150 if addressed outside the U.S.) — to petition the U.S. Tax Court before the tax is assessed. This deadline is jurisdictional: miss it, and the court generally cannot hear your case.
• Audit reconsideration: if an assessment was made by default because you did not respond, you may later ask the IRS to review it again with new documentation — but this is no substitute for responding on time.

Should You Handle It Yourself or Hire Help?

It depends on the audit type, the dollars involved, and your comfort with IRS procedure. A simple correspondence audit over one well-documented deduction is often manageable alone; office and field audits, multi-year examinations, or anything hinting at fraud are different. Three kinds of professionals can represent you before the IRS:

• Tax attorney — a licensed lawyer focused on tax; provides attorney-client privilege and can litigate in U.S. Tax Court. Best when there is legal exposure, fraud, or large amounts at stake.
• CPA (Certified Public Accountant) — strong on the numbers; can represent you but does not provide legal advice or the same privilege.
• Enrolled agent (EA) — a federally licensed practitioner authorized to represent taxpayers before the IRS in audits, collections, and appeals.

If the audit could lead to fraud allegations or a substantial debt, consult a licensed tax attorney before you respond. For how audits fit into the larger landscape of IRS problems and resolution options, see our tax law guide to IRS issues, tax debt, and your legal options.

Your Rights During an IRS Audit

You are not powerless in an examination. The Taxpayer Bill of Rights, described in IRS Publication 1 (which the IRS must provide at the start of an audit), guarantees protections throughout the process:

• The right to be informed of why you are being audited and what is being examined.
• The right to professional representation by an attorney, CPA, or enrolled agent.
• The right to record an in-person interview (with advance notice) and to take a break to consult your representative.
• The right to pay no more than the correct amount of tax and to appeal the result to the Independent Office of Appeals or the courts.

Knowing these rights changes how you engage: you can slow down, decline to answer on the spot, and bring in a professional at any point.

What Happens After the Audit

An audit closes in one of three ways, and your response to the result matters as much as your response to the notice.

• No change. The IRS accepts your return as filed; you owe nothing more.
• Agreed. You sign the report and owe the additional tax plus penalties and interest. If you cannot pay in full, an IRS installment agreement (payment plan) spreads the balance over time, and in some hardship cases an offer in compromise to settle tax debt may let qualifying taxpayers settle for less. Eligibility is fact-specific and decided by the IRS.
• Disagreed. You do not have to sign. You can request a conference with the IRS Independent Office of Appeals, which reviews disputes independently of the examiner and often resolves them without litigation. If that fails and the IRS issues a notice of deficiency, you can petition the U.S. Tax Court.

Ignoring the result lets the IRS assess the tax by default and begin collection — which can escalate to a tax lien or a tax levy against your property. Responding, even to disagree, preserves more options.

Common Mistakes to Avoid

• Ignoring the notice or missing the deadline. Silence leads to a default assessment, lost appeal rights, and collection. Calendar the deadline the day you open the letter, and request an extension before it lapses.
• Sending originals or over-sharing. Send copies only, and answer only what was asked — extra records can expand the audit to new years or issues.
• Talking to the IRS without a plan in an office or field audit. Off-the-cuff answers can hurt you; let a representative handle the conversation.
• Signing an agreement just to end it. Signing the report gives up valuable appeal rights — be sure first.
• Assuming an audit means criminal trouble. It usually does not, but if fraud is raised or IRS Criminal Investigation makes contact, stop and consult a tax attorney before saying anything.

Special Situations and State Audits

A few contexts carry heightened risk:

• Payroll tax (employment tax) audits. If your business fell behind on payroll tax deposits, an examination can lead the IRS to assess the trust fund recovery penalty personally against owners, officers, and other "responsible persons" — liability that can survive the business closing. Consult a tax attorney before discussing your role.
• Joint returns and a spouse's errors. If an audit traces additional tax to a spouse's or former spouse's understated income or improper deductions, compare innocent spouse relief vs. injured spouse relief and ask a tax attorney which, if either, may apply.
• State tax audits. The IRS is not the only authority that can audit you. State tax agencies (for example, the California Franchise Tax Board or the New York Department of Taxation and Finance) run their own examinations under their own rules and deadlines, and resolving a federal matter does not resolve a state one. Confirm any state agency's procedures on its official .gov site.

To verify your notice, deadlines, and rights, use irs.gov and IRS Publication 1. The free Taxpayer Advocate Service (taxpayeradvocate.irs.gov) can help if an audit causes hardship or stalls.

Frequently Asked Questions

What do I do first when I get an IRS audit notice?

Read the letter and confirm it is genuine by checking the notice or letter number at irs.gov — the IRS opens audits by mail, never by an unsolicited call, text, or email. Identify the tax year, the items in question, the audit type, and the deadline, then calendar the deadline immediately and keep the envelope. Consider consulting a tax professional before responding if the amounts are significant. For guidance on your situation, you can find a licensed tax attorney in our directory.

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

Most initial audit notices give you about 30 days from the date on the letter, but the exact deadline is printed on your notice; request an extension before it passes if you need one. Later deadlines follow — roughly 30 days to request an Appeals conference and generally 90 days to petition the U.S. Tax Court after a notice of deficiency. Verify current periods at irs.gov.

Do I need a tax attorney for an IRS audit?

Not always. A simple correspondence audit over one well-documented item is often manageable on your own. But for office or field audits, multiple years, large amounts, or any hint of fraud, most tax professionals recommend representation by a tax attorney, CPA, or enrolled agent — and a tax attorney specifically offers attorney-client privilege and can litigate in Tax Court. This is general information, not a recommendation — consult a licensed tax attorney.

What happens if I ignore an IRS audit notice?

Ignoring the notice is the worst option. The IRS can assess the proposed tax by default, so you lose the chance to dispute the changes and your appeal rights can lapse. Collection can then escalate to a tax lien or levy against your property, wages, or bank accounts. If a default assessment already happened, you may be able to request audit reconsideration, but responding on time is far better.

Does being audited mean I am in trouble or facing criminal charges?

Usually not. Most audits are civil reviews to verify your return, and many close with no change or even a refund. Returns are selected through computer scoring, document mismatches, and random sampling — selection alone does not mean wrongdoing. Criminal investigations are far less common and handled by IRS Criminal Investigation; if fraud is alleged or a special agent contacts you, do not make statements and consult a tax attorney immediately.

Can I appeal the results of an IRS audit?

Yes. If you disagree, you do not have to sign the report. You can request a conference with the IRS Independent Office of Appeals, which reviews the dispute independently of the examiner and often resolves it without going to court. If Appeals does not resolve it and the IRS issues a notice of deficiency, you can petition the U.S. Tax Court within the deadline on that notice. A tax attorney can advise on which path fits and the deadlines involved.

Talk to a Tax Law Attorney

An IRS audit notice is stressful, but it is a process with rules, rights, and deadlines you can work within — and responding the right way often matters more than the audit itself. A licensed tax attorney can identify the audit type, manage what the IRS sees, protect your appeal rights, and walk you through resolution options if you end up owing. If you have received an audit notice or any IRS letter, find a lawyer near you and connect with a Tax Law attorney in our directory. This article is general information, not legal advice — consult a licensed attorney about your specific situation.