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How long to keep tax and business records
Keep records long enough to support the return, prove asset basis and satisfy employment, legal and contractual requirements. There is no single retention period for every document.
The general federal rule
Many income-tax records are kept for at least three years. Longer periods apply in some circumstances, including substantial omitted income, certain loss claims, unfiled returns or fraud. Keep filed returns as a reference.
Records that need longer attention
Retain asset purchase, improvement and depreciation records through disposal and the applicable limitation period afterward. Keep ownership and shareholder basis records while they remain relevant. Employment-tax records generally need at least four years.
Create a usable archive
Store returns, filing confirmations, statements, invoices and receipts by tax year. Keep backups, restrict access and make sure electronic records can be read. Consider insurance, financing and state-law requirements before destroying anything.
Before you delete
Do not destroy records connected to an unresolved notice, audit, claim or legal matter. Ask about the specific record type and tax year first.