IRS Notice CP10: Changes to your return: next year's payments
IRS Notice CP10 is a return adjustment letter from the IRS. The IRS fixed a mistake on your return, and that changed the amount you asked to apply to next year's estimated tax. This is not a bill. The IRS sends letters like this after it changes figures on a return.
What this letter usually means
The IRS fixed a mistake on your return, and that changed the amount you asked to apply to next year's estimated tax. This is not a bill. A change can raise or lower what you owe or your refund. The letter shows both the old and new figures.
Category: The IRS changed your return
What people usually do first
If you disagree, call the number on your notice by the date shown.
What to have ready
- The letter, every page
- Your copy of the return
- Records of any payments you have made
- Records for any item the IRS changed
What may come next
This letter does not point to a specific follow-up letter. Any later step will be described in mail from the IRS.
Read the IRS page
The IRS letter itself is the final word on what it means for you. Read the IRS page for CP10.
Common questions about CP10
What is IRS notice CP10?
The IRS fixed a mistake on your return, and that changed the amount you asked to apply to next year's estimated tax. This is not a bill.
How long do I have to respond to a CP10 notice?
The date to respond or pay by, if there is one, is printed on your letter. Check it, and read the IRS page for CP10 for more.
Is a CP10 notice a scam?
A real CP10 comes by mail and should match your own records. You can also sign in to your IRS Online Account on irs.gov to see your account directly.
What should I have ready for a CP10 notice?
The letter, every page, Your copy of the return, Records of any payments you have made, Records for any item the IRS changed.
The OweRight app explains the CP10 letter type in plain English.
Get early access to the appOweRight is not the IRS and does not give tax or legal advice.
Related notices
- IRS Notice CP23: Estimated payments don't match: you owe
- IRS Notice CP24: Estimated payments don't match: refund changed
- IRS Notice CP25: Estimated payments don't match: balance is zero
- IRS Notice CP16: Changes to your return: refund offset
- IRS Notice CP30: Penalty for underpaying estimated tax
- IRS Notice CP11: Changes to your return: you owe