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IRS Letter 566: The IRS is auditing your return by mail

IRS Letter 566 is a review letter from the IRS. The IRS is checking items on your tax return and is asking you to send papers that back them up. This is a request for records, not a bill. It means the IRS is taking a closer look at part of a return.

What this letter usually means

The IRS is checking items on your tax return and is asking you to send papers that back them up. This is a request for records, not a bill. A review does not mean you did something wrong. It means the IRS wants more information before it finishes the return.

Category: The IRS is reviewing or auditing your return

What people usually do first

Send the records the letter lists, by the date printed on it. Keep a copy of everything you send.

What to have ready

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 566.

Common questions about 566

What is IRS notice 566?

The IRS is checking items on your tax return and is asking you to send papers that back them up. This is a request for records, not a bill. It is also called 566CG, LETTER566, LETTER566CG.

How long do I have to respond to a 566 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 566 for more.

Is a 566 notice a scam?

A real 566 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 566 notice?

The letter, every page, A copy of the return it mentions, Records for any amount the letter questions.

The OweRight app explains the 566 letter type in plain English.

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OweRight is not the IRS and does not give tax or legal advice.

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