As a rule, the Canada Revenue Agency (CRA) recommends that taxpayers retain a copy of their completed return (including receipts and supporting documents) for a minimum of six years once it has been filed. Because a deceased person’s return(s) are still subject to review and can be audited, the CRA’s retention guideline also applies to a deceased person’s records.
Where can I learn more?
- How long should I keep my income tax records? (Canada Revenue Agency website)