Short answer
Letter 915, Examination Report Transmittal, sends you the report from an in-person office audit, usually Form 4549. You generally have 30 days from the letter date to sign and agree, give the examiner more information, or file a protest with the IRS Independent Office of Appeals. Ignoring it leads to a notice of deficiency (Letter 531).
Key takeaways
- Letter 915 is the 30-day letter for office audits; it is a proposal, not a bill.
- The IRS uses it for agreed and unagreed reports, so you may get one even if you agreed at the meeting.
- You generally have 30 days from the letter date; extensions are possible in reasonable circumstances but not automatic.
- No response leads to Letter 531, the notice of deficiency, and a 90-day Tax Court deadline.
What Letter 915 is
Letter 915 is titled “Examination Report Transmittal.” It is a 30-day letter: it sends you the audit report and gives you 30 days from its date to agree or ask for an appeal. The IRS Independent Office of Appeals says it “explains adjustments in amount of tax” and that you “should file your protest within 30 days from the date of this letter.”
It is the office audit version of the 30-day letter. Office audits are run by tax compliance officers (TCOs) at an IRS office, and the IRS manual says that “generally, for deficiency cases, TCOs issue Letter 915 with the first report (in person or by mail)” (IRM 4.10.8, revised August 28, 2025). The Taxpayer Advocate Service (TAS) puts it more broadly: Letter 915 is generally issued “if your audit was conducted in person.”
| Letter | Audit type | Next letter if unresolved |
|---|---|---|
| Letter 525 | Letter 3219 | |
| Letter 915 | Office (in person) | Letter 531 |
| Letter 950 | Field | Notice of deficiency |
Like every 30-day letter, it must be signed by the examiner’s group manager (IRM 4.10.8.2.3.1), so expect the manager’s name in the signature block and the examiner’s name as the contact. It is a proposal, not a bill.
Why you got Letter 915
Your office audit is finished and the examiner proposes a change to your tax. Office audits usually start with Letter 3572 or Letter 2202 and a Form 4564 listing records to bring (see types of IRS audits). Letter 915 is how the result reaches you.
You can get Letter 915 even if you agreed at the meeting. The manual says that for office audits with at least 240 days left on the assessment statute, “generally Letter 915, Examination Report Transmittal, is used to issue both agreed and unagreed reports” (IRM 4.10.8.4.1.1). If you agree, signing and returning the report closes the case. If you don’t, the same letter is your notice of appeal rights.
What comes with Letter 915
The manual requires every 30-day letter to include “a complete examination report,” the waiver form when one is required, and Publication 3498 (IRM 4.10.8.12.1). In practice that means:
- Form 4549, Report of Income Tax Examination Changes, with a signature line. Some cases use Form 4549-A, which has no signature line, plus Form 870 as the separate waiver. See reading Form 4549.
- Explanations of each adjustment. For most office audits the IRS uses standard explanations, which the manual says “include enough information to enable the taxpayer to challenge the issue” (IRM 4.10.8.12.4). Some examiners attach lead sheets or a Form 886-A.
- Publication 3498, The Examination Process, which explains your appeal rights.
Check that the tax years, penalty lines and your name and address are right.
The deadline and how to get more time
TAS says Letter 915 “gives you 30 days to request a conference with the IRS Independent Office of Appeals.” Count from the date printed on the letter. Publication 3498 says you “generally have 30 days from the date of the letter to tell us whether you will accept the proposed changes or appeal them.”
- Extensions are possible, not automatic. For in-person audits the IRS audits page says to contact the auditor, and the auditor’s manager if needed. The manual says extensions to reply to a 30-day letter “may be granted under reasonable circumstances,” such as hiring a representative, illness or complex issues. Ask in writing with your reasons. Extensions are “normally granted for no more than 30 days” and confirmed by Letter 686 (IRM 4.10.8.12.8).
- Follow-up letters don’t reset the date. If you don’t answer within 15 days, the examiner may send Letter 1912, a follow-up the manual says “is not a 30-day letter.” Work to the date on Letter 915.
- Short statute, shorter letter. When fewer than 240 days remain on the statute, the examiner sends Letter 5153 instead, allows 10 days to respond and asks you to extend the statute so Appeals has time (IRM 4.10.8.12.1). Appeals generally needs 365 days left when it receives a case. See Form 872.
Your options
| Option | How | What happens next |
|---|---|---|
| Agree with everything | Sign and return the report (or Form 870), with payment if you can | The case closes as agreed; the IRS assesses the tax and bills any balance |
| Agree in part | Tell the examiner which items you accept | The manual has the examiner send an “agreed” Form 4549-A and Form 870 for those items, generally with 15 days to sign (IRM 4.10.8.6.2.2); the rest goes to Appeals |
| Give the examiner more information | Send documents or an explanation before the date | The examiner reviews; a corrected report may follow |
| Meet the manager or try Fast Track Settlement | Ask for a conference with the examiner’s supervisor; ask whether Fast Track Settlement is available | Publication 3498 says Fast Track uses a trained Appeals employee as a neutral and you keep your appeal rights if it fails |
| Request Appeals | Small case request (Form 12203 or a short statement) if each period is $25,000 (IRS.gov, 2026) or less; otherwise a formal written protest (Publication 5) | The case goes to the IRS Independent Office of Appeals |
| Do nothing | None | Letter 531, the notice of deficiency |
Templates: small case request and formal protest. For the decision itself, read agree or appeal and the 30-day letter guide.
How to respond to Letter 915
- Calendar the date on the letter, with a reminder a week before.
- Read each adjustment against your records. Compare every change on the report with its explanation and your own documents, and mark each item agree or disagree.
- Call the examiner about anything unclear. The contact name and number are on the letter. Note the date, name and what was said.
- Decide item by item. Sign only what you accept. If you accept some items, ask for the partial agreement forms.
- Write your reply or appeal. For items you dispute, list each one, the tax year and why you disagree, with copies of your support. A formal protest needs the elements and penalties-of-perjury statement in Publication 5.
- Send it to the office on the letter. Publication 3498 says the IRS sends your protest and case to Appeals. Keep a full copy and proof of delivery.
New information raised at Appeals generally goes back to the examiner (Publication 3498), so give the examiner everything now.
What happens next
- Agreed. The report goes for review and the case closes; the manual names Letter 987, Agreed Income Tax Change, as a closing letter. A bill follows for any balance, such as a CP14. Interest runs from the return’s due date at the federal short-term rate plus 3 percentage points, reset quarterly (7% (IRS.gov, Jul-Dec 2026) now). Publication 3498 says that if the amount is under $100,000 (IRS.gov, 2026) and you pay within 21 calendar days of the bill, no more interest or penalties are charged. Can’t pay? See options after the exam.
- Appealed. Appeals contacts you to set a conference, which Publication 3498 says may be by telephone, video or in person.
- No agreement and no appeal. The IRS issues Letter 531, the notice of deficiency. See your Tax Court deadline.
To stop interest while you dispute, Publication 3498 says you can make an advance payment or an IRC 6603 deposit on the amount you expect to owe.
Mistakes to avoid
- Signing at the closing meeting to be done with it. The IRS manual says signing Form 4549 indicates you “do not wish to exercise appeal rights” for those adjustments.
- Counting from the day the letter arrived. The 30 days run from the letter date.
- Waiting for Letter 1912 before acting. It is a reminder, not a new deadline.
- Refusing a statute extension without thinking it through. Without enough time on the statute, Appeals won’t take the case and the IRS moves to a notice of deficiency. Publication 1035 explains your options: sign, negotiate the terms or refuse.
- Appealing on moral or constitutional grounds. Publication 3498 says those reasons can’t be appealed.
Doing it yourself, free help, and representation
You can answer Letter 915 yourself, and a short small case request is within reach for most people. A representative is worth considering when a formal protest is needed, penalties are proposed, business income is involved or the IRS asks you to extend the statute.
- Low Income Taxpayer Clinics represent eligible taxpayers in audits and appeals for free or a small fee (find a clinic).
- Taxpayer Advocate Service: free help when an IRS problem causes financial difficulty, 877-777-4778 (IRS.gov, 2026).
- A representative (attorney, CPA or enrolled agent) can deal with the examiner and Appeals for you under Form 2848. See audit representation.
Global Gate Tax Relief offers a free consultation and, if it takes the case, quotes a flat fee upfront. No outcome is guaranteed. Request a free review of your Letter 915 or call 1-877-800-8180.
Frequently asked questions
Letter 915, Examination Report Transmittal, is the 30-day letter the IRS generally uses after an office (in-person) audit. It encloses the audit report and explains how to agree or file a protest with the IRS Independent Office of Appeals within 30 days of the letter date.
The IRS manual says office examiners generally use Letter 915 for both agreed and unagreed reports. If you agree, sign and return the report by the date on the letter and the case closes as agreed.
Generally 30 days from the date on the letter. If you need more time, ask the examiner in writing before the date and give a reason. Extensions are usually no more than 30 days.
Both are 30-day letters with the same choices. TAS says Letter 525 is generally issued after a mail audit and Letter 915 after an in-person audit.
The IRS may disallow the items and send Letter 531, a notice of deficiency. You then have 90 days (150 if addressed outside the US) to petition the Tax Court, or the tax is assessed and billed.
Yes. Tell the examiner which items you accept. The manual has the examiner send an agreed report and Form 870 for those items, and the unagreed items go to Appeals.
Sources
- Taxpayer Advocate Service: Letter 915, Examination Report Transmittal (updated 14 Jul 2026)
- Taxpayer Advocate Service: Letter 525 (Letters 525 and 915, updated 14 Jul 2026)
- IRS Independent Office of Appeals: Letters and notices offering an appeal opportunity (reviewed 16 Jul 2026)
- IRM 4.10.8, Report Writing (08-28-2025)
- IRM 4.10.2, Pre-Contact Responsibilities (08-28-2025)
- IRS: IRS audits (reviewed 17 Feb 2026)
- IRS Publication 3498, The Examination Process (Rev. 5-2025)
- IRS Publication 5, Your Appeal Rights and How to Prepare a Protest (Rev. 4-2021)
- IRS Publication 1035, Extending the Tax Assessment Period (Rev. 9-2017)
- 26 U.S.C. 6213, Restrictions applicable to deficiencies; petition to Tax Court
- IRS: Quarterly interest rates
- IRS: Low Income Taxpayer Clinics
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