IRS notice decoder
Corrections the IRS made
Every corrections the irs made notice and letter we have decoded, by number. Open one for what it means, the date that counts and the first steps.
- CP10a correction changed the estimated tax carried forward
A CP10 says the IRS fixed a mistake on your return, and that changed the overpayment you asked to apply to next year's estimated tax.
- CP11the IRS corrected your return and you owe
A CP11 says the IRS fixed a mistake on your return and now you owe. Check the change, then pay or disagree by the date on it.
- CP12the IRS corrected your return and your refund changed
A CP12 says the IRS fixed a mistake on your return and your refund changed. If you agree, do nothing; if not, call by the date on it.
- CP13the IRS corrected your return and you owe nothing
A CP13 says the IRS fixed a mistake on your return and your balance is now zero: no refund, nothing owed. Disagree by the date on it.
- CP21Athe IRS changed your return and you owe
A CP21A says the IRS made changes to your return and you now owe. Find out what changed, then pay or disagree by the date on it.
- CP22Athe IRS changed your return and you owe
A CP22A says the IRS made changes to your return and you now owe. Find out what changed, then pay or disagree by the date on it.
- CP23estimated payments didn't match, and you owe
A CP23 says the estimated payments on your return didn't match what the IRS posted, so you owe. Check every payment before you pay.
- CP24estimated payments didn't match, and you have a credit
A CP24 says the estimated payments on your return didn't match what the IRS posted, and the fix left you a credit. Check it before you spend it.
- CP87Asomeone else claimed the same dependent
A CP87A says another return claimed a dependent with the same SSN as yours. If you're entitled to claim them, you don't need to respond.