Where's My Refund Reference Codes: What Each 4-Digit Code Means

By Forrest Baumhover, CFP®, EA · Last verified November 12, 2026

When Where's My Refund cannot show a normal status, it sometimes gives a phone number and a 4-digit reference code. The IRS lists 38 codes in Exhibit 21.4.1-3 of its Internal Revenue Manual. This page quotes each one and says what to do next.

Where the code comes from

Where's My Refund is the IRS refund tracker on IRS.gov. The Internal Revenue Manual says that "in some instances, the refund callback number will be provided, along with a unique 4-digit reference number, for further assistance." The manual lists the most common codes in Exhibit 21.4.1-3.

The code points IRS staff to the procedure that fits your account. The manual says staff handle these calls "like any other refund call."

All 38 codes and what to do

Each row quotes the IRS description word for word. The last column is FTD's plain-English next step, drawn from the manual section the IRS cites. Where the manual gives no instruction, the row says so.

CodeIRS descriptionWhat to do
1001"Refund paper check mailed more than 4 weeks ago"Start a refund trace if the check has not arrived. Filers who did not file jointly can start one in Where's My Refund; joint filers call the IRS or send Form 3911.
1021"BFS part offset, check mailed more than 4 weeks ago"Part of the refund paid a debt owed to another agency, and the rest went out as a check. Contact the agency listed on the offset notice or call 800-304-3107. Trace the check if it has not arrived.
1081"IRS full/partial offset, check mailed more than 4 weeks ago"Some or all of the refund paid tax you owe the IRS. Trace any remaining check that has not arrived.
1091"IRS full/partial offset, direct deposit more than 1 week ago"Some or all of the refund paid tax you owe the IRS. Ask your bank about any remaining deposit first, then trace it.
1121"Problem identified; P- Freeze"The IRS stopped the refund or got it back. If you received a CP53E, follow it within 30 days to add bank details or, in limited cases, ask for a paper check, then allow 4 weeks.
1141"Refund delayed liability on another account; V- Freeze more than 8 cycles"The IRS is holding the refund for a debt on another IRS account or owed to another agency. Pay or resolve that debt, or contact the agency.
1161"Refund delayed, bankruptcy on account: -V Freeze, CLOSING-CD-IND is 'Y'; less than 8 weeks"A bankruptcy on the account holds the refund. If normal processing time has passed, call the IRS Centralized Insolvency Operation at 800-973-0424.
1181"Refund delayed, pulled for review, not within 7 cycles"The IRS list gives no instruction for this code. Call the number Where's My Refund shows.
1221"Refund delayed, pulled for review, within 7 cycles"The IRS list gives no instruction for this code. Call the number Where's My Refund shows.
1241"Paper return received more than 6 weeks ago; -E Freeze; in review, notice for additional information will be received"The IRS is reviewing the return and will mail a letter asking for information. Answer it with what it asks for.
1242"Electronic return received more than 3 weeks ago; –E Freeze; in review, notice for additional information will be received"The IRS is reviewing the return and will mail a letter asking for information. Answer it with what it asks for.
1261"Paper return received more than 6 weeks ago; –Q Freeze; in review, notice for additional information will be received"An item on the return is under review. The IRS holds only the part of the refund tied to that item and issues the rest. Answer the letter it sends.
1262"Electronic return received more than 3 weeks ago; -Q Freeze; in review, notice for additional information will be received"An item on the return is under review. The IRS holds only the part of the refund tied to that item and issues the rest. Answer the letter it sends.
1341"Refund delayed, liability on another account; V- Freeze"The IRS is holding the refund for a debt on another IRS account or owed to another agency. Pay or resolve that debt, or contact the agency.
1361"Refund withheld for part/full payment of another tax liability; V- Freeze"The refund went toward another tax debt. Pay or resolve the rest of that debt, or contact the agency that claimed it.
1381"Refund withheld for part/full payment of another tax liability; V- Freeze"The refund went toward another tax debt. Pay or resolve the rest of that debt, or contact the agency that claimed it.
1401"Refund withheld for part/full payment of another tax liability; V- Freeze"The refund went toward another tax debt. Pay or resolve the rest of that debt, or contact the agency that claimed it.
1421"Refund delayed bankruptcy on account; -V Freeze; more than 8 weeks"A bankruptcy on the account holds the refund. Call the IRS Centralized Insolvency Operation at 800-973-0424.
1441"Refund delayed, SSN, ITIN or Name mismatch with SSA/IRS; return posted to Invalid Segment"Your name or taxpayer ID does not match IRS or Social Security records. Send the IRS proof of a name change or the correct number.
1502"Direct deposit more than 2 weeks ago, check with bank, file check claim"Ask your bank first. If it has no record of the deposit 5 calendar days after the scheduled date, call the IRS or send Form 3911; the online tools cannot trace a direct deposit.
1551"Frivolous Return Program freeze set by TC 971 AC 089"The IRS flagged the return under its Frivolous Return Program. The IRS list gives no taxpayer instruction for this code.
1561"Excess credit freeze set when the taxpayer claims fewer credits than are available"You claimed fewer payments or credits than the IRS shows. Confirm the payments, such as estimated tax, and why you left them off, or tell the IRS they are not yours.
1571"Erroneous refund freeze initiated by TC 844"The account owes back an erroneous refund. The IRS holds every refund until you repay it in full or its time limit to recover the money runs out.
1581"Manual refund freeze with no TC 150, or, return is Coded CCC "O" and TC 150 posted without TC 840"This hold usually clears when the return posts. If it has not, call back after 6 weeks.
2009"Taxpayer is advised their refund check was returned undelivered by the Postal Service. Follow instructions in IRM 21.4.3.5.3, Undeliverable Refund Checks"The Postal Service returned your check. Call the number Where's My Refund shows to give a new address; the IRS has turned off the online address change.
2015"Savings bond request denied - partial offset - more than 3 weeks from refund date"A savings bond code. The IRS manual says refunds could buy savings bonds only until January 1, 2025.
2016"Savings bond request denied - total offset"A savings bond code. The IRS manual says refunds could buy savings bonds only until January 1, 2025.
2017"Savings bond request allowed - more than 3 weeks from refund date"A savings bond code. The IRS manual says refunds could buy savings bonds only until January 1, 2025.
5501"Split direct deposit - partial offset"Part of a split refund paid a debt. Contact the agency listed on the offset notice or call 800-304-3107.
5510"Split direct deposit - returned by the bank - check mailed - with partial offset"A bank rejected part of a split deposit, so the IRS is mailing a paper check for that part. Trace it if it has not arrived after 4 weeks.
5511"Split direct deposit - returned by the bank - check mailed"A bank rejected part of a split deposit, so the IRS is mailing a paper check for that part. Trace it if it has not arrived after 4 weeks.
5520"Split Direct Deposit more than 1 week ago"Ask each bank first. If a bank has no record of its deposit 5 calendar days after the scheduled date, call the IRS or send Form 3911.
5530"Split Direct Deposit flipped to paper check"The split request failed, so the IRS sent the whole refund as one paper check. Trace it if it has not arrived after 4 weeks.
9001"Systemic error/issue"The IRS list gives no instruction for this code. Call the number Where's My Refund shows.
9021"Reference Code for all math error conditions"A math error changed your refund. Read the IRS notice that explains the change.
9022"Math error on return. Direct deposit more than 1 week ago"A math error changed your refund, and the IRS deposited the new amount. Ask your bank first, then trace after 5 calendar days.
9023"Math error on return. Refund paper check mailed more than 4 weeks ago"A math error changed your refund, and the IRS mailed a check for the new amount. Trace it if it has not arrived.
9024"Math error on return. Balance due more than $50"A math error turned your refund into a balance due of more than $50. Read the IRS notice that explains the change.

Codes that mean the IRS wants something from you

Codes 1241 and 1242 (and 1261 and 1262) mean the IRS froze all or part of the refund to review the return and will mail a letter. Answer that letter with what it asks for. See reference code 1242. Our freeze code guide explains the freezes these codes name.

Code 1121 means the IRS stopped the refund or got it back. If you received a CP53E, follow it within 30 days to add bank details or, in limited cases, ask for a paper check. See reference code 1121.

Code 1441 means your name or taxpayer identification number does not match IRS or Social Security records. The IRS needs proof of a name change or the correct number before it releases the refund.

Codes that mean your refund already went out

Codes 1001, 1081, 9023, 5510, 5511 and 5530 mean the IRS mailed a paper check. The manual lets you ask for a trace once four weeks have passed since the mailing date (nine weeks for a foreign address). Filers who did not file jointly can start a trace in Where's My Refund; joint filers call the IRS or send Form 3911.

Codes 1091, 1502, 5520 and 9022 mean the IRS sent a direct deposit. Ask your bank first. If the bank has no record of the deposit and five calendar days have passed since the scheduled date, call the IRS or send Form 3911; the online tools cannot trace a direct deposit.

Codes 1021 and 5501 mean part of the refund paid a debt. For a debt owed to another agency, the IRS manual points you to the agency listed on the offset notice or the Treasury Offset Program line at 800-304-3107. Our refund offset guide explains your options.

Where the IRS list has not kept up

Code 1502 says "direct deposit more than 2 weeks ago," but the same manual lets a direct deposit trace start five calendar days after the scheduled deposit date. Follow the five-day rule.

Codes 2015, 2016 and 2017 cover savings bond purchases. The manual says taxpayers could take a refund as savings bonds only from 2010, "continuing until January 1, 2025."

Codes 1181, 1221, 9001 and 9021 to 9024 cite no manual section. The IRS list tells staff only to "conduct account analysis" or to "analyze account and follow appropriate IRM."

What people mistake these codes for

Some people read a reference code as an error on their return. The manual describes it as a pointer the IRS gives "for further assistance," and most rows describe where the refund stands, not a mistake.

Others expect the online tool to trace a direct deposit. The manual says the automated systems do not let you start your own trace if you "received their refund via direct deposit."

What to do next

If your code says the refund went out, start with the trace rules above. If it says the IRS is holding the refund, our refund hold guide explains the common holds, and IRS processing times shows how long current inventories take. If the IRS rejected your e-file instead, see the e-file reject codes.

Common Questions

How do I get a reference code?

Where's My Refund shows one only in some cases, together with a phone number to call (IRM 21.4.1.6).

What number do I call for a math error code?

The IRS manual says Where's My Refund gives 800-829-0582 when one or more math errors, or other conditions, are on the account.

Sources

More from the Desk

More practitioner writing from Forrest Baumhover, CFP®, EA at The Federal Tax Desk on Substack.

This page provides general information about IRS procedures. It is not personalized tax advice, and reading it does not create a practitioner-client relationship with Forrest Baumhover, Fbaum Enterprises LLC, or The Federal Tax Desk. Every situation is different — if real money or a real deadline is on the line, consider having a licensed CPA, EA, or tax attorney review your specific facts before you act.

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