October 19, 2026 · Daniel Ali

IRS Codes 971 and 977 Together: Amended Return Explained

Featured banner explaining IRS codes 971 and 977 on a tax transcript, pairing an amended return with an IRS notice

Direct answer: Together, codes 971 and 977 mean the IRS received your amended return (977) and logged a notice or forwarding action about it (971). This usually confirms your Form 1040-X entered processing. The notice number on the 971 line tells you what the IRS wants, and the adjustment codes that post later show whether your amendment was accepted, changed, or denied.

If you filed Form 1040-X to fix a tax return and then spotted IRS codes 971 and 977 sitting side by side on your account transcript, you are looking at the standard amended-return signature in the IRS Master File. Individually, each code is simple: 977 means an amended return was posted to your account, and 971 means the IRS recorded a notice or administrative action. Together, they confirm your amendment entered the IRS pipeline — but they do not yet tell you the outcome. That answer arrives later, in the adjustment codes that follow.

The two costliest mistakes are panicking over a $0.00 amount next to 977 and ignoring the 971 notice that tells you what the IRS needs. This guide covers what each code means, what they mean together, the full amended-return timeline, the notice numbers most likely to appear, and a stage-by-stage checklist. For a broader refresher, see IRS Transcript Codes: Complete List and Meanings.

What Code 971 Means on Your Transcript

IRS Transaction Code 971 is a “miscellaneous transaction” marker in the IRS’s internal coding manual, Document 6209. Unlike most codes, it has no single fixed meaning — it carries an action code identifying what happened. For most taxpayers, 971 means the IRS issued a notice or letter about the account, and the date next to it is roughly when the notice was generated.

The description text beside 971 is what matters most. Common versions include “Notice Issued” followed by a CP number (for example, CP12 or CP21A) and “Amended Tax Return or Claim Forwarded for Processing.” The amount next to 971 is usually $0.00 because the code is an informational marker, not a change to your balance. For a deep dive on the code in isolation, read IRS Code 971: Notice Issued — Meaning.

One detail most guides skip: the “Amended Tax Return or Claim Forwarded for Processing” description corresponds to an internal action code (AC 010 in Document 6209, Section 8C), which routes your amended return to the IRS’s Accounts Management division for review. In plain English, the IRS logged that your 1040-X was picked up and handed to a review queue.

What Code 977 Means on Your Transcript

IRS Transaction Code 977 means an amended return was posted to your account. The IRS’s internal description is “Posted Amended Return,” and the transcript line usually reads “Amended Return Filed.” It can also post when the IRS processes certain adjustments to a previously filed return, but for most taxpayers it appears right after they file Form 1040-X. More detail is available in IRS Code 977: Amended Return Filed — Meaning.

The single biggest source of confusion with 977 is the dollar amount beside it. The amount next to 977 is the remittance (payment) submitted with the amended return — it does not reflect the adjustment to your tax liability. Document 6209 states this explicitly: an amount posted with TC 977 is a remittance amount, not the liability change. So if you filed a 1040-X expecting a $1,200 refund and see 977 with $0.00 next to it, that does not mean your refund was denied. The actual change to what you owe or are owed arrives later under a 29X or 30X adjustment code.

What 971 and 977 Mean Together on an Amended Return

When 971 and 977 appear together after you filed Form 1040-X, the pair tells a simple story: the IRS received your amended return (977) and recorded the associated notice or forwarding action (971). On many transcripts you will see the 971 line reading “Amended Tax Return or Claim Forwarded for Processing” with the same date as the 977 “Amended Return Filed” line. That combination is confirmation — not a problem.

What the pair does *not* tell you is the outcome. The outcome shows up in the codes that post after the pair: a 29X or 30X adjustment code records what the IRS actually changed, and then the result posts as IRS Code 846: Refund Issued (refund), IRS Code 290: Additional Tax Assessed (balance due), or IRS Code 826: Credit Transferred Out (overpayment moved to another debt or tax period).

The Amended Return Transcript Timeline: Codes in Order

The table below shows the standard amended-return journey, what each stage looks like, and what to do. For step-by-step help reading any transcript line, use How to Read an IRS Account Transcript: Step-by-Step Guide.

Stage	Codes you see	What it means	What to do
Filed and logged	977 (Amended Return Filed) + 971 (Amended Tax Return or Claim Forwarded for Processing)	IRS received your 1040-X and routed it for review.	No action. Keep a copy of the 1040-X and supporting schedules.
In the queue	No new codes for a while	Your amendment is waiting in the manual review pipeline.	Check Where’s My Amended Return about 3 weeks after filing; it shows Received, Adjusted, or Completed.
Correspondence	971 (Notice Issued) with a CP number	IRS mailed you a notice — an acknowledgement, information request, or change explanation.	Open every IRS letter promptly. The response deadline on the notice is the date that matters.
Adjustment posted	29X or 30X series code	The IRS recorded the actual change to your tax liability.	Compare the adjustment to your 1040-X. If it differs, read the notice to see what changed and why.
Outcome: refund	846 (Refund Issued)	The IRS approved a refund from the amendment.	Watch your mailbox — amended-return refunds arrive by check.
Outcome: balance	290 (Additional Tax Assessed)	The amendment resulted in tax owed.	Pay by the notice deadline to stop interest accruing from the original due date.
Outcome: offset	826 (Credit Transferred Out)	The refund was applied to another debt or tax period.	Check the notice for where the money went.

Two timeline facts come straight from the IRS’s current guidance: the Where’s My Amended Return tool becomes available about three weeks after you submit Form 1040-X, and the IRS asks you to allow 8 to 12 weeks for processing, with some cases taking up to 16 weeks. Those are processing guidelines, not guaranteed payment dates. Track standard refund expectations separately at Tax Refund Status: Check Your Federal and State Refund.

Common 971 Notice Numbers After a 977

When a second 971 appears with a CP notice number after your 977, that number — not the code itself — tells you what the IRS is communicating. The notice number is printed on the letter (usually in the upper-right corner) and beside the 971 line. These are the notices most commonly paired with 971 on amended-return accounts:

Notice	What it usually means	Your next step
CP21A	The IRS made the changes you requested, and you owe money as a result.	Pay by the deadline or set up a payment plan.
CP21B	The changes you requested resulted in a refund.	Confirm the amount matches your 1040-X.
CP21C	The IRS made the requested changes; nothing is due and no refund is owed.	No payment needed. Keep the notice for your records.
CP22A	The IRS made the changes you requested, and you owe money as a result.	Pay by the deadline or arrange a payment plan.
CP12	The IRS corrected a math error on the return.	Review the correction; pay any difference or verify the math.
CP71	Reminder that a balance remains on the account.	Check your balance in your IRS online account and pay if you have not already.

Do not confuse this pair with the hold-and-notice pattern in IRS Code 570 and 971 Together: What They Mean & What To Do, which involves a refund freeze (570) rather than an amended return (977).

What To Do at Each Stage: Amended Return Checklist

Confirm the pair is about your 1040-X. Check that the 977 posts to the same tax year you amended. If you did not file a 1040-X, treat an unexpected 977 as an IRS-initiated adjustment and wait for the notice.
Do not misread the 977 amount. A $0.00 next to 977 is normal when no payment was enclosed. Your refund or balance change appears later under a 29X/30X adjustment code, not on the 977 line.
Wait three weeks, then use the right tool. The IRS’s Where’s My Amended Return tool (https://www.irs.gov/filing/wheres-my-amended-return) shows your status about three weeks after you file — Received, Adjusted, or Completed. Do not use the standard Where’s My Refund tool for a 1040-X; it does not track amended returns.
Open every notice immediately. A 971 with a CP number means a letter is on its way or in your mailbox. The response deadline printed on the notice is the one that counts — missing it can let the IRS finalize changes without your input.
Match the adjustment code to your 1040-X. When a 29X/30X code posts, compare the IRS’s adjustment to your figures. If they differ, read the notice to see what the IRS changed and why.
Track the outcome code. 846 means a refund is on the way, 290 means tax was assessed, and 826 means your overpayment was transferred to another debt or tax period.
Call only when the IRS tells you to. Do not call about your amended return unless the Where’s My Amended Return tool specifically directs you to. Past 16 weeks with no movement, use the amended-return line 866-464-2050.
Keep everything. Store your original return, the 1040-X, supporting forms and schedules, every IRS notice, and copies of any payments for at least three years after the amendment.

What NOT To Do While Your Amendment Is Processing

Do not file a second 1040-X for the same tax year while the first is still processing, unless the IRS specifically instructs you to. A duplicate amendment can collide with the one already in the pipeline and delay both.
Do not use the wrong tracker. Where’s My Refund handles original returns only; Form 1040-X status lives in the Where’s My Amended Return tool. Seeing nothing on the wrong tool is expected, not evidence of a problem.
Do not call the IRS before the three-week window unless the tool tells you to — your return simply will not be in the tracking system yet.
Do not ignore a 971 notice because the 977 looks “fine.” The notice carries deadlines and explanations the transcript never will.
Do not assume a freeze. Amended returns are slow — the IRS’s published window is 8 to 12 weeks, up to 16 — but slowness alone is not a IRS Code 570: Refund Hold Meaning, Timeline & What To Do hold. Only a 570 or 810 code means your refund is actually frozen.

Related Guides

Frequently Asked Questions

Is seeing 971 and 977 together good news or bad news?

Neither, by itself. The pair is a neutral confirmation that your amended return entered IRS processing. The outcome is determined by the adjustment codes (29X/30X) and outcome codes (846, 290, or 826) that post later — those lines tell you whether the amendment produced a refund, a balance due, or no change.

How long after 977 posts will I get my refund?

There is no fixed number of days between the 977 posting and a refund. The IRS’s current published guidance asks taxpayers to allow 8 to 12 weeks to process an amended return, with some cases taking up to 16 weeks. The refund posts as code 846 only after the IRS finishes its review and records the liability adjustment — the 977 line is only the starting point.

Why does 977 show $0.00 if I claimed a refund on my 1040-X?

Because the amount next to 977 is the remittance (payment) you sent with the amended return, not the change to your tax liability — IRS Document 6209 states that a TC 977 amount does not reflect the liability adjustment. If you enclosed no payment, $0.00 is normal. Your refund amount appears later, on the adjustment and refund lines.

What does “Amended Tax Return or Claim Forwarded for Processing” mean on the 971 line?

It means the IRS logged your 1040-X and routed it to the Accounts Management division for review (internal action code 010). It is an acknowledgement that your amendment entered the system — not an approval of the changes. No action is required at this stage.

I never filed an amended return, but 977 is on my transcript. What happened?

A 977 without a 1040-X from you usually means the IRS adjusted a prior-year return on its own — often through an automated matching program. Look for a nearby 971 notice entry and wait for the letter explaining the change. Compare the IRS’s figures against your records, and if you disagree, respond by the deadline on the notice.

Should I file another 1040-X if my amended return seems stuck?

No — not while the first amendment is still processing. A duplicate 1040-X can interfere with the one already in the pipeline and make the delay worse. Check the Where’s My Amended Return tool first, and act only if the IRS’s own tool directs you to contact them or if more than 16 weeks have passed.

*Disclaimer: This article is for general information only and is not tax advice. IRS procedures and processing times change; always confirm your situation with the IRS or a qualified tax professional.*

Sources: IRS Where’s My Amended Return (https://www.irs.gov/filing/wheres-my-amended-return) for the 8–12 week / up to 16 week guidance and three-week tool availability; IRS Document 6209, Section 8A (https://www.irs.gov/pub/irs-pia/6209sec8amasterfilecodes.pdf) for the TC 971/977 definitions and the remittance-amount rule.