VALID › Notice Library › CP133 notice
In the IRS’s own words · not reviewed by VALID
CP133 notice explained, in the IRS’s own words
We made changes to your tax return because we believe there's a miscalculation on your return. As a result of these changes, there's an overpayment on your account.
Read the full CP133 page on irs.gov ↗
What this notice is about
We made changes to your tax return because we believe there's a miscalculation on your return. As a result of these changes, there's an overpayment on your account.
What you need to do
- Read the notice carefully. It will explain the changes we made.
- Compare the figures on the notice with your tax return.
- If you agree with the changes we made, correct the copy of your tax return that you kept for your records.
- If you don't agree with the changes, contact us within 10 days from the date of your notice by calling the toll-free number listed on your notice or by mailing the completed contact stub with any correspondence or documentation.
- You don't need to take any further action.
How can I find out what caused my tax return to change?
Call us at the toll-free number listed on your notice for specific information about your tax return.
What if I don't receive my refund in four to six weeks?
If you don't owe other taxes or debts we're required to collect and six weeks have passed, call us at the toll-free number listed on your notice.
Where can I get forms and instructions?
Visit Forms, instructions & publications or call 800-TAX-FORM (800-829-3676).
Tips for next year
- Refer to the instructions for your tax return for required documentation and how to complete your return. Attach all required forms and schedules to your tax return when filing.
- Consider filing your taxes electronically.
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.