IRS Code 291 Explained: A Reduction in Previously Assessed Tax
Understand what a tax reduction changes, why the amount is not automatically your refund, and how to read the account before deciding what happens next.
Last reviewed: October 24, 2026 • Individual income tax accounts
Quick answer: IRS Code 291 records a reduction, or abatement, of previously assessed tax. It can reduce an earlier assessment in whole or in part. It is not itself a refund transaction. The account’s payments, credits, prior refunds, and other adjustments determine whether you still owe, reach zero, or have an overpayment.
Finding a tax reduction on your transcript can be encouraging. The next question is what that reduction means for your account—not just whether the code looks favorable.
This guide explains the difference between reducing assessed tax and issuing money, with fictional examples you can follow one line at a time. For the larger reading framework, start with the RefundTalk tax transcript hub .
What does IRS Code 291 mean?
IRS Document 6209 defines Code 291 as an abatement of a prior tax assessment. Its definition allows the transaction to reduce previously posted tax under Codes 150, 290, or 300, in whole or in part. On an individual account, read it as a reduction to tax that was already recorded.
“Abatement” means a reduction or removal of an assessed amount. It does not necessarily mean the entire assessment disappeared. The amount beside the transaction matters.
The assessment
Tax previously recorded on the account. Code 291 reduces that assessed tax.
The balance
What remains after payments, credits, adjustments, refunds, and other account activity.
The refund
A separate account event. A tax reduction alone does not establish a refund amount or payment date.
A reduction may follow an amended return or another adjustment process. The three-digit code does not identify the precise reason or prove that every requested change was accepted. Read the IRS explanation and related account history.
Code 291 versus Code 290 and Code 150
| Code | Basic role | Question to ask |
|---|---|---|
| 150 | Original return’s tax assessment on a typical individual account. | What tax was initially recorded? |
| 290 | An additional assessment adjustment; a zero-dollar entry adds no tax through that line. | What amount was added, and what was the adjustment for? |
| 291 | Reduction of previously assessed tax. | What tax was reduced, and what position remains afterward? |
Code 291 can reduce all or part of an earlier assessment. Do not assume it reverses only the nearest Code 290, or that it always cancels the last transaction you noticed.
For related reading, see Code 150 explained and our Codes 290 and 291 comparison .
Does Code 291 mean you will get a refund?
Not necessarily. A reduction can lower an unpaid balance without creating any overpayment. It can also bring the account to zero or leave a credit position that requires further review.
| Position before reduction | Tax reduction | Position afterward |
|---|---|---|
| $1,000 owed | $600 | $400 still owed. |
| $600 owed | $600 | $0 balance. |
| $200 owed | $600 | $400 credit position. |
These examples exclude penalties, interest, offsets, transfers, earlier refunds, and other activity. They demonstrate arithmetic, not an entitlement to payment.
Keep these amounts separate: The tax reduction is how much assessed tax decreased. The remaining balance describes the account after other activity. Any refund is a separate result.
Why earlier refunds matter
If money was already refunded, include that transaction when reviewing the ledger. Otherwise, you may count a credit as though it remained available when it was already paid out.
Why a negative amount can be favorable
A tax reduction commonly appears as a credit, often displayed with a minus sign. That sign reflects the accounting effect. It is not a negative refund or a new payment you made.
Original fictional transcript: follow the reduction
This simplified ledger is not an IRS-issued transcript. Descriptions are shortened, dates are omitted, and the running position is an educational annotation rather than a standard transcript column. No processing timeline is implied.
| Code | Illustrative description | Amount | Running position |
|---|---|---|---|
| 150 | Original tax assessment | $4,000.00 | $4,000 debit |
| 806 | Withholding credit | −$3,500.00 | $500 debit |
| 290 | Additional tax assessed | $900.00 | $1,400 debit |
| 291 | Reduction of prior tax assessment | −$1,000.00 | $400 debit |
What this example establishes
The $1,000 reduction lowered the simplified amount owed from $1,400 to $400. It did not produce a $1,000 refund. The figures alone do not establish which assessment or underlying issue the IRS reduced.
Change one fact: more withholding
If the same account had $4,500 of withholding instead of $3,500, the arithmetic would be $4,000 − $4,500 + $900 − $1,000 = a $600 credit position. The Code 291 amount would still be $1,000, but the potential overpayment would be $600 before other activity.
If a later refund entry appears
A later Code 846 for $600 would be separate refund issuance activity. In that alternate simplified ledger, it would use the $600 credit and bring the position to zero. Later cancellation or adjustment activity could change a real account again.
The lesson: Read the transaction as part of the account, not as a standalone promise of money.
How to read Code 291 step by step
- Confirm the tax year and transcript type. An account transcript shows account activity. If you need the original return information alongside later adjustments, consider a record of account.
- Read the amount and displayed date. Identify how much tax the entry reduces. Do not treat the transaction date as a bank-deposit date or notice response deadline.
- Review the earlier assessments. Read the original tax and later assessment adjustments. Avoid assuming the nearest earlier row explains the reduction.
- Include payments, credits, and prior refunds. These determine whether the tax reduction leaves a balance due, zero balance, or credit position.
- Read subsequent activity and correspondence. Check later adjustments, any unresolved restrictions, and the IRS notice explaining the change.
- Identify the remaining question. Is the issue an unexplained reduction, an incorrect balance, a disputed adjustment, or a missing payment? Each question requires different information.
What about holds and freeze codes?
IRS procedures make restriction releases dependent on the transaction and account conditions. Do not assume Code 291 clears every hold simply because it reduces tax. Check for unresolved restrictions and ask the IRS if the account does not establish their status.
Our refund freeze guide and Code 570 explanation cover related questions.
What about penalties and interest?
A tax reduction can require related interest adjustments where applicable. It does not establish that all penalties or interest disappeared. Review those items separately and compare the result with the IRS adjustment explanation.
Code 291 after an amended return
A reduction may be consistent with some requested changes, but matching one figure does not prove the IRS accepted every part of your amendment. Your amendment might include several tax and credit changes.
Get the fuller record: The IRS recommends requesting a record of account transcript if you filed an amended return or the IRS adjusted your account after processing. It combines return and account information.
Compare that record with your filed amendment, supporting documents, and IRS correspondence. A record of account is not a photocopy of every document submitted.
See the IRS transcript FAQs and our amended return hub .
What should you do after seeing Code 291?
| What you find | Useful next step |
|---|---|
| The reduction matches the IRS explanation. | Check the resulting balance and any instructions. Keep the notice with your tax records. |
| You still owe after the reduction. | Reconcile the current balance and payments. Follow applicable payment instructions; do not assume the reduction canceled everything. |
| You see a credit but no refund activity. | Review restrictions, transfers, and later transactions. Use official status information without inventing a countdown from Code 291. |
| The amount or reason is unfamiliar. | Ask which assessment was reduced and which notice explains the adjustment. |
| You disagree or a notice requests action. | Follow that notice’s response procedure and deadline. Preserve supporting documents and proof of your response. |
Questions to ask the IRS
- Which assessment and issue does this Code 291 reduce?
- Was the reduction full or partial for the issue involved?
- Did any credits, penalties, or interest change separately?
- What is the current account balance after later activity?
- Is any restriction or requested response still outstanding?
Use the number on a verified IRS notice first. For general individual account help, call 800-829-1040. Check current IRS contact guidance . For original-return refund status, use the official IRS refund tools .
Protect your records. Do not publish an unredacted transcript, taxpayer identification number, address, or notice barcode when asking for help online.
Your Code 291 review worksheet
Record the change and the remaining question
Keep this worksheet private. Include only the information needed to review the account.
IRS Code 291 frequently asked questions
Is Code 291 good news?
It records a reduction in assessed tax. That can improve the account position, but the practical outcome depends on the rest of the record.
Does Code 291 mean a refund was approved?
No. A tax reduction and a refund are separate events. Check the resulting account position and later refund activity.
Will my refund equal the Code 291 amount?
Not necessarily. An unpaid balance may absorb some or all of the reduction, and other account activity can change the result.
Does Code 291 cancel Code 290?
It can reduce a prior Code 290 assessment, but it can also reduce other prior tax assessments. Do not assume which assessment was affected without the supporting account information.
Why does Code 291 show a minus sign?
A reduction is generally recorded as a credit to the account. The sign describes its bookkeeping effect, not a negative payment to you.
How long after Code 291 does a refund arrive?
There is no universal refund countdown from Code 291. The reduction might leave a balance due or no overpayment at all.
Does it prove my amended return was approved in full?
No. Compare all requested changes with the IRS explanation and account history.
Does it remove all penalties and interest?
No. Related adjustments may apply, but those items need separate review.
Can I still owe after Code 291?
Yes. The fictional example above shows a $1,000 reduction leaving a $400 balance before other activity.
What if the reduction is smaller than expected?
Read the adjustment explanation and compare it with your records. If you disagree, use the response or dispute instructions and deadline in the applicable notice.
Less assessed tax is one part of the answer.
Code 291 tells you tax was reduced. Read the amount, reconcile the rest of the account, and use the IRS explanation to determine what changed and whether you need to act.
Official sources
- IRS Document 6209, Section 8A — transaction definitions, including Code 291.
- IRM 21.5.2: Adjustment Guidelines .
- IRM 21.5.6: Freeze Codes .
- IRS transcript FAQs and transcript types .
- Understanding your IRS notice or letter .
- IRS refund information and contact guidance .
RefundTalk is an independent educational resource and is not affiliated with the IRS. This guide addresses common individual income tax accounts. Examples are fictional and simplified; real accounts may contain additional facts and transactions. Your notice and circumstances determine the instructions and deadlines that apply.