Let’s find a tax preparation office for you


Information regarding browser or device support

Oh no! We may not fully support the browser or device software you are using!

To experience our site in the best way possible, please update your browser or device software, or move over to another browser.


What is a CP21B notice?

Mark Steber Chief Tax Information Officer Published On June 26, 2020


IRS notices are letters sent to inform taxpayers of important tax information. Each one is different, but we can explain what the CP21B is about.

Understanding your CP21B notice

You requested changes to your tax return. The IRS made the changes and will be sending you a tax refund within 2-3 weeks of this notice.

Type of Notice 

Refund notice

Why you received the CP21B notice

You received a CP21B notice because you asked for a change to your tax return. The IRS corrected your return and you will be receiving your tax refund within 2-3 weeks.

Likely next steps

As always, carefully read the notice, which will summarize the changes you requested.

If you disagree with the changes the IRS made, you need to contact the IRS at the toll-free number listed on the CP21B in the top right-hand corner or via mail within 60 days.

About the Author

Mark Steber is Chief Tax Information Officer, responsible for key initiatives that support overall tax service delivery and quality assurance. Mark also serves as a Jackson Hewitt liaison with the Internal Revenue Service, states, and other government authorities. With over 30 years of tax experience and deep knowledge of the federal and state tax codes, Mark is widely referenced as an expert on consumer income tax issues, especially electronic-tax and tax data-protection issues.

View Mark's LinkedIn Profile Jackson Hewitt Editorial Policy

Owe back taxes? Jackson Hewitt® can help.

Learn More

Related articles

Amending a Tax Return

Did you know that it is possible to amend a tax return after you have submitted it? If you made a mistake when filing your tax return, or you have come upon information that was not mentioned in your original return, then it may be possible to fix that mistake – even after you’ve sent in your original return – by amending it with the IRS.

View more

What is a CP60 Notice?

IRS notices are letters sent to inform taxpayers of important tax information. Each one is different, but we can explain what the CP60 is about.

View more

What Are You Using Your Tax Refund For?

For many Americans, getting a long-awaited tax refund can be the biggest, most significant financial transaction of the year – and many taxpayers plan on putting theirs to good use. According to a recent survey, a sizable portion of taxpayers are planning on using their tax refunds to pay off holiday bills. 

View more

Why Jackson Hewitt®?

We see you

Our Tax Pros will connect with you one-on-one, answer all your questions, and always go the extra mile to support you.

We got you

We have flexible hours, locations, and filing options that cater to every hardworking tax filer.

We fight for you

We won't stop until you get every dollar you deserve, guaranteed. It's what we've been doing for over 35 years.