CRA Reviews and Compliance

How Long Should Tax and Business Records Be Kept?

Build a practical retention system for source documents, electronic records, property history, payroll and ongoing disputes.

Before relying on this article

Tax rules, thresholds and administrative procedures can change. Confirm current official requirements and obtain advice for material transactions or unusual facts.

The general tax rule is not the whole answer

Tax records are generally retained for a prescribed period, often measured from the end of the relevant tax year. Longer retention may be needed where a return was filed late, an objection or appeal is ongoing, records relate to long-term property or another law requires preservation.

Permanent property records

Purchase and sale documents, legal fees, improvements, reorganizations and valuations can affect adjusted cost base decades later. Do not destroy them merely because six years have passed since purchase.

Electronic records

Scanned records should remain readable, searchable and connected to the accounting entry. A bank feed is not always a substitute for an invoice. Preserve the original electronic data and maintain backups that can be restored.

Payroll and corporate records

Keep employee setup, TD1 forms, payroll registers, remittances, T4 slips, shareholder resolutions, minute-book records and tax elections. Corporate legal records often have a longer useful life than ordinary receipts.

Disputes and holds

Suspend destruction when CRA review, litigation, an insurance claim, employee dispute or transaction due diligence is possible. Document the hold and who authorized eventual destruction.

Retention schedule

Create categories: annual tax support, permanent asset records, payroll, legal/corporate, client engagement and website enquiries. Assign a retention trigger and secure destruction method to each. Review the schedule annually.

General information only

This article provides general Canadian tax information and is not a substitute for tax, legal, financial or investment advice based on complete circumstances.