What Is an IRS Notice? Understanding Letters From the Tax Agency Without Panic

Receiving a letter from the IRS is one of the things that causes people the most anxiety — often out of proportion to what the letter actually says. The vast majority of IRS notices are routine, informational, or simple requests that require a straightforward response. Understanding what you're looking at is the first step to handling it calmly.

Not all IRS letters mean you're in trouble

The IRS sends millions of letters every year for reasons that have nothing to do with audits or penalties. Some letters simply confirm that you filed your return. Others notify you of a change to your refund amount. Some ask you to verify your identity. Others request documentation to support a specific item on your return. The letter itself will tell you exactly why it was sent and what, if anything, you need to do.

Find the notice number

Every IRS notice has a notice or letter number printed in the upper right corner, usually starting with "CP" or "LTR" followed by a number. This number identifies exactly what the notice is about. If you search the IRS website (irs.gov) for your notice number, you'll find a plain language explanation of what it means and what the IRS expects from you. Writing down this number before doing anything else is the first step.

Common notice types

CP2000 is one of the most common — it means the IRS found income on a 1099 or W2 that doesn't appear to match what you reported on your return. It's not an automatic finding that you owe money; it's a request to confirm or correct the information. CP14 means you have a balance due. CP501 is a reminder that you owe a balance. CP503 is a second reminder. LTR 525 may indicate an audit of specific items. LTR 3219 is a statutory notice of deficiency, which is more serious and has a specific response deadline.

Response deadlines matter

Every IRS notice that requires a response will include a deadline. These deadlines are important. If you don't respond by the deadline, the IRS may assume you agree with their position and proceed accordingly. If you need more time, you can call the number on the notice and request an extension before the deadline passes.

What not to do

Do not ignore an IRS notice. Do not throw it away. Do not assume it's junk mail. And do not immediately call a tax resolution company advertising on television — many of these charge large fees for services you may not need. If the notice is routine, you may be able to handle it yourself or with the help of the IRS's free taxpayer assistance resources.

Getting help

If you receive an IRS notice that you don't understand, you have several options. The IRS has a Taxpayer Advocate Service for people experiencing hardship. AARP Tax-Aide offers free tax help to people 50 and older. And you can upload an IRS notice to ReadMyPay.com to get a plain English explanation of what it says and what your options are — before spending money on professional help you may not need.