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The Daily Insight

How many years can the IRS go back?

Author

Matthew Barrera

Updated on April 01, 2026

Generally, the IRS can include returns filed within the last three years in an audit. If we identify a substantial error, we may add additional years. We usually don’t go back more than the last six years. The IRS tries to audit tax returns as soon as possible after they are filed.

How to get a letter from the IRS?

Enter your notice or letter number above to get more information on IRS notices and letters, along with answers to many notice-related questions. If your notice or letter doesn’t return a result using the Notices & Letters Search on this page, contact us at the toll-free number 800-829-1040.

What does IRS letter 1058 / Lt 11 mean?

IRS Letter 1058 or L 1058 / LT 11 is a final notice from the Internal Revenue Service (sent certified) letting you know that you still have a balance and if you do not resolve it then they will attempt to levy your wages, bank account, and/or other assets within 30 days.

How to verify identity after receiving a letter from the IRS?

If you received a 4883C letter or a 6330C letter, follow the instructions on the letter. You can’t use this online service. To register and verify your identity, you need: You must also have your mailing address from your previous year’s tax return Enter the old address from the previous year, even if it’s not your current address.

Why did I get a notice from the IRS?

Although the IRS is systematic, sometimes notices can be skipped if you have had problems in the past and for other reasons. This notice is sent to a taxpayer to show that there was a change made to the tax return and that change resulted in a balance being due to the IRS.

The number of years the IRS can audit will vary, for example: Here are a the common IRS Statute lengths of time to audit. In most situations, the IRS can go back three years.

When does the IRS have to go back to audit you?

In most situations, the IRS can go back three years. That means if your 2016 tax return was due April 2017, the IRS has three years from April 2017 to audit you (if you file the return timely, either before or on the April due date).

How long do you have to pay the IRS for delinquent tax returns?

That’s right, a fairly reasonable and more manageable six years and working with IRS collections on payment options. The six year enforcement period for delinquent returns is found in IRS Policy Statement 5-133 and Internal Revenue Manual 1.2.14.1.18.

When does the IRS have an unlimited amount of time?

There’re two main situations in which the IRS has an unlimited amount of time to audit. The first situation is when a person has not filed a tax return. When a person has not filed a tax return for a particular year, the statute limitations for that year has not yet commenced.