Recordkeeping for Income Tax Purposes
After you file, you should keep copies of your tax return and related records. The Minnesota Department of Revenue may have questions about your return, your tax owed, or your refund amount.
Keeping records of your income and deductions will help you:
Prepare an accurate tax return and pay the correct tax.
Prove all items on your return with sufficient records or evidence.
Clear up questionable items when we review your return.