Getting an audit letter from the IRS can make your chest tighten. You may wonder what you did wrong, what the IRS can see, and whether you can handle this on your own. Those are normal worries, and you are not the only one asking them.
This page answers the questions taxpayers ask most about audits and having a tax professional speak for them.
Audit Deadlines at a Glance
Dates drive almost everything in an audit. Keep this table close when letters arrive.
| Item | Time Frame | Why It Matters |
|---|---|---|
| Response to the first audit letter | Date printed on the letter | A late reply can lead to automatic changes to your return |
| 30-day letter | 30 days | Your window to agree, disagree in writing, or ask for an appeal |
| 90-day letter (notice of deficiency) | 90 days (150 outside the U.S.) | Last chance to petition Tax Court before the tax is assessed |
| Standard audit window | Generally 3 years from filing | The IRS usually cannot audit older returns |
| Extended audit window | 6 years if over 25% of income was left off | Missed income stretches how far back the IRS can look |
What is IRS audit representation and how does it work?
IRS audit representation means a licensed tax professional handles your audit for you. After you sign a power of attorney (Form 2848), your representative reviews the IRS letter, gathers records, answers questions, and speaks with the auditor so you do not have to. Learn more in our guide to IRS audit representation services.
Is IRS audit representation worth it?
Usually, yes, when real money or several tax years are involved. A representative keeps the audit focused on what the IRS asked about, presents records the right way, and protects your appeal rights. For a small, one-item mail audit, some people feel fine going alone, but a quick consult can tell you where you stand.
How much does IRS audit representation cost?
The price depends on the audit type, the number of tax years, how organized your records are, and whether an appeal is needed. Simple mail audits often cost less than field audits. Ask for a written fee quote before you sign, and compare it with the extra tax, interest, and penalties you could face.
How do I choose the right IRS audit representative?
Look for a CPA, enrolled agent, or tax attorney who handles audits regularly. Verify credentials through the IRS directory of tax professionals or your state board, ask who will actually work your case, and get fees in writing. Be careful with anyone who guarantees a result or asks you to sign a blank Form 2848.
Can I hire a representative after my audit has already started?
Yes. You can bring in a representative at any point, even in the middle of a meeting, and you can ask the auditor to pause so you can get help. The sooner a pro steps in, the fewer statements you make on your own that end up in the audit file.
Does hiring a tax professional make the IRS think I am guilty?
No. Having a representative is a right listed in the IRS Taxpayer Bill of Rights, and auditors work with representatives every day. Hiring one shows you take the audit seriously. It does not suggest you have something to hide.
Audit Notices and Audit Triggers
What triggers an IRS audit?
Common triggers include income that does not match your W-2s and 1099s, deductions that look high for your income, large charitable gifts, math errors, and ties to another taxpayer’s audit. Some returns are picked for research. Being selected does not mean you did something wrong.
What are the odds of being audited by the IRS?
For most people, the odds are low. Figures in the IRS Data Book show the overall audit rate for individual returns is well under 1 percent in recent years. Rates are higher for very high earners and for returns with complex items like business losses or large credits.
Is a CP2000 notice an audit?
Not exactly. A CP2000 notice is a proposed change that appears when income reported to the IRS by employers or banks does not match your return. It is handled by mail but can still add tax and penalties, so answer by the date on the notice. See our guide to IRS notices.
Does the IRS start an audit by phone, email, or text?
No. The IRS starts an audit by mail. Calls, texts, or emails that claim you are being audited and demand payment by gift card, wire, or crypto are scams. Check anything suspicious against the IRS tax scam alerts before you respond.
Are self-employed people and small business owners more likely to be audited?
They can draw extra attention. Business returns involve more deductions and less third-party reporting, so items like vehicle use, home office costs, meals, and cash income get a closer look. Clean books, a separate business bank account, and saved receipts make any audit easier to handle.
What to Expect During an IRS Audit
What documents should I gather for an IRS audit?
Gather records that back up the lines the IRS questioned, such as receipts, bank and card statements, mileage logs, invoices, and 1099s or W-2s. Send only what the IRS requests. Have your representative review everything first so you do not hand over extra items that open new questions. The IRS also explains how long to keep records.
What should I avoid saying to an IRS auditor?
Do not guess, volunteer extra details, or talk about other tax years. A casual guess about an amount can become part of the record. If you are unsure, say you will check and respond later. Letting your representative do the talking is the safest route.
How far back can the IRS audit my tax returns?
In general, three years from the date you filed or the due date, whichever is later. That grows to six years if you left out more than 25 percent of your gross income, and there is no time limit if you never filed or if fraud is involved. If you have missing years, see our guide to unfiled tax returns.
What happens if I cannot prove a deduction or credit?
The IRS can disallow it, which raises your taxable income. You then owe the added tax plus interest, and sometimes a 20 percent accuracy-related penalty. If you had a good reason for the error, you may be able to ask for penalty relief.
What if the IRS already audited me for the same items?
If the IRS audited the same items in one of the last two years and made no change to your tax, tell the auditor right away. The IRS may be able to close the new audit without a full review. Share the earlier audit letter so your representative can raise it early. IRS Publication 556 covers exam rules and appeal rights.
After the Audit: Letters, Appeals, and Balances
What is a 30-day letter and what should I do with it?
A 30-day letter, often Letter 950, lists the changes the IRS proposes after your audit. You have 30 days to agree, send a written disagreement, or ask for a conference with the IRS Independent Office of Appeals. Ignoring it usually leads to a 90-day letter.
What is a 90-day letter from the IRS?
Also called a notice of deficiency, it states the tax the IRS plans to assess. You have 90 days from the date on the letter (150 days if you are outside the U.S.) to petition the U.S. Tax Court without paying first. This deadline cannot be extended, so act quickly.
What if I agree with the audit results but cannot pay the bill?
Agreeing to the results and paying are separate steps. If you owe more than you can pay at once, you may qualify for an IRS payment plan or other tax debt relief options. A representative can also review the bill for penalties that may be reduced.
Your Rights and Low-Cost Help
Can an IRS audit lead to criminal charges?
It is very rare. Most audits are civil and end with added tax, interest, and sometimes penalties. Criminal referrals generally involve willful fraud, such as hiding income or creating false records. If an auditor starts asking about your intent, pause and speak with a tax attorney, whose conversations with you are privileged.
What if I cannot afford an audit representative?
Two free resources may help. Low Income Taxpayer Clinics offer free or low-cost representation to eligible taxpayers, and the Taxpayer Advocate Service helps people facing hardship from an IRS problem. You can also ask a firm whether it offers a payment schedule for its fees.
Get Help With Your IRS Audit
If you have an audit letter in your hands, the best next step is a quick, confidential review. A licensed tax professional can read the notice, explain what the IRS is asking, and take over the conversation so you can get back to your life.
- Enrolled agents, CPAs, and tax attorneys on one team
- A free review of your IRS letter and deadlines
- Direct contact with the IRS on your behalf
- Help with appeals and with any balance that results from the audit
Explore more help on our IRS audit representation services page, or see how we handle tax resolution services when an audit leaves you with a balance.
Facing an IRS Audit? Do Not Go It Alone.
Talk with a licensed tax professional before your response deadline passes.
Speak With a Tax Relief Professional
Prefer to talk now? Call 800-676-6014
Sources and References
- IRS Taxpayer Bill of Rights
- IRS Publication 556, Examination of Returns, Appeal Rights, and Claims for Refund
- IRS Data Book
- IRS: Understanding Your CP2000 Notice
- IRS Low Income Taxpayer Clinics
- Taxpayer Advocate Service
This page gives general information about IRS audits and is not legal or tax advice for your situation. Tax rules and deadlines change, and every case is different. Speak with a qualified tax professional before making decisions about your audit.