VALID › Notice Library › CP230 notice
In the IRS’s own words · not reviewed by VALID
CP230 notice explained, in the IRS’s own words
We changed your return because the amounts on your information returns don’t match those on your employment tax returns.
Read the full CP230 page on irs.gov ↗
What this notice is about
We changed your return because the amounts on your information returns don’t match those on your employment tax returns.
What you need to do
- If you have a balance due, pay the amount owed by the date shown on your notice.
- If you can’t pay the full amount, visit our payments page for more information about other ways to pay.
- If you disagree with the changes, contact us within 30 days from the date of your notice.
Frequently asked questions
How can I find out what amounts didn’t match? (updated Nov. 24, 2025)
Call us at the number listed in your notice.
Will I receive a penalty if I can't pay the full amount? (updated Nov. 24, 2025)
Yes, you could be charged a penalty. If you were charged a penalty, your notice will explain how we calculated that penalty.
What to do next
- Write down the date on the letter today.
- Look the number up on irs.gov yourself. Don’t trust a link or phone number from anyone else.
- If it says you owe money or proposes changes to your return, take it to a licensed CPA, EA or tax attorney before that date.
Not advice. Not a filing. Verify with a licensed professional. Rules change by year and facts.