Understanding your CP21B Notice

We made the changes you requested to your tax return for the tax year specified on the notice. You should receive your refund within 2-3 weeks of your notice.


What you need to do

  • Read your notice carefully to see what we changed.
  • Contact us if you disagree with the changes we made.
  • Correct the copy of your tax return that you kept for your records.
  • Be sure to report any interest we paid you on your tax return for this year.

Answers to common questions

What if I don't receive my refund in 2-3 weeks?
If you don't owe other taxes or debts we're required to collect, such as child support, and 3 weeks have lapsed, call us at the toll-free number listed on the top right corner of your notice.

Will I receive information about the interest that I need to report on my next tax return?
If you receive $10 or more in interest, you'll receive a Form 1099-INT, Interest Income, by January 31 of next year. Please note, even if the interest you receive is less than $10, you must report this amount on your tax return.

I don't remember sending a request to IRS to change my return. How can I find out what IRS received to initiate this change?
Call us at the number listed on the top right corner of your notice.

What if I need to make another correction to my account?
You'll need to file Form 1040X, Amended U.S. Individual Income Tax Return.

What if I haven't gotten answers after contacting IRS several times?
Call the Taxpayer Advocate at 877-777-4778 or for TTY/TDD 800-829-4059.

What if I think I'm a victim of identity theft?
Call us at the number listed on the top right corner of your notice. Refer to the IRS Identity Theft resource page for more information.


Tips for next year

Consider filing your taxes electronically. Filing online can help you avoid mistakes and find credits and deductions that you may qualify for. In many cases you can file for free. Learn more about e-file.

Printable samples of this notice (PDF)

Need Help?

  • You can authorize someone to contact the IRS on your behalf.
  • See if you qualify for help from a Low Income Taxpayer Clinic.
  • If you can’t find what you need online, you can call the IRS at the 800, 866, or 888 number listed on the notice.