What Is the IRS Statute of Limitations?

The IRS generally has three years from the date you filed your return to audit it and assess additional taxes. If you underreported income by more than 25%, that window extends to six years. There's no time limit if you committed fraud or never filed a return. The IRS also has 10 years from the date of assessment to collect taxes owed. Keeping tax records for at least three to seven years is a smart practice.