Get Answers


IRS Notice Letter 566

We are examining your federal income tax return

Audits conducted by mail are the most common type. While they might seem straightforward, your response needs to be thorough, including the required documents and an explanation for why you are entitled to a deduction or credit. H&R Block is here to guide you through the mail audit process and work with you to achieve the best possible outcome.

What happened?

  1. You filed a tax return and the IRS sent Letter 566 to notify you it will be subject to a federal income tax return examination.
  2. In many cases, the entire return will not be subject to tax return audit review - the IRS will merely audit specific areas during its federal income tax review. This notice explains the areas being reviewed by the IRS and requests the documents needed to back up the information shown on the return.

How can H&R Block help?

  • If the IRS disagrees or isn't satisfied with your response, the IRS may audit tax returns from other years as well. We'll make sure you respond correctly and with all the right information.
  • If the IRS has assessed penalties as part of the audit, we'll see if you qualify to have those penalties removed.

Have questions about a Letter 566 notice you received? Schedule a FREE consultation with an H&R Block tax professional today. We'll sit down to review your notice, answer your questions, and, if necessary, recommend next steps to get your issue resolved.

Ready to file?

You've got your forms. And we've got your back. There's only one thing left to do. Let's do this.


So how much will you get (or owe) this year? That’s the million-dollar question. We happen to have three very useful calculators to help you estimate your refund or balance due.

Need Live Support? 1-800-HRBLOCK (1-800-472-5625) or Find An Office