Keeping tax records after filing can make future returns easier and provide support if the IRS asks questions about income, deductions, or credits. For many taxpayers, the general guideline is to retain supporting documents for three years after filing. Useful records may include W-2s, 1099s, receipts, bank statements, education documents, charitable contribution records, and proof of deductible expenses. Copies of filed tax returns should also be kept because they can help when preparing later returns or filing an amendment.

Some situations require longer retention. Records may need to be kept for six years when substantial income was not reported, and seven years when claiming a loss from worthless securities or a bad-debt deduction. Property-related records should generally remain available until the limitation period expires for the year the property is sold or otherwise disposed of. These documents can help establish purchase price, improvements, depreciation, and taxable gain or loss.

A simple filing system can reduce confusion. Taxpayers may organize documents by year, store paper copies in a secure location, and maintain password-protected digital backups. Before discarding anything, they should consider whether a lender, insurance company, employer, or other organization requires longer retention. Reviewing records once a year can keep files manageable while ensuring important information remains available when needed.