Keep records for 3 years from the date you filed your original return or 2 years from the date you paid the tax, whichever is later, if you file a claim for credit or refund after you file your return. Keep records for 7 years if you file a claim for a loss from worthless securities or bad debt deduction.

For more information on how long to hold specific records see the below IRS link:

https://www.irs.gov/businesses/small-businesses-self-employed/how-long-should-i-keep-records#:~:text=Keep%20records%20for%203%20years%20from%20the%20date%20you%20filed,securities%20or%20bad%20debt%20deduction.