Statute of Limitations: How long taxpayers should keep their tax related documents is dependent on the applicable statute of limitations. The IRS suggests keeping tax and related income records for three years from the date of filing, or two years from the date the tax liability is paid, whichever is first. However, it is best to keep those documents longer than three years, as there are certain circumstances where a statute of limitations may last up to six years from the date of filing.
Lipman, Francine J., "Tax Talk Tuesdays: Statute of Limitations (Jan. 1, 2019)" (2019). Tax Talk Tuesdays Radio Broadcasts. 22.