Who should keep these records
Anyone filing a personal Canada return should keep support for the deductions, credits, and carryforwards they report. This matters even when you file online and do not attach the documents up front.
- Keep the support for any amount that lowers tax or affects a future carryforward.
- Keep records for claims made for yourself, your spouse or common-law partner, and any dependant when relevant.
- Keep a copy of the return and your notice of assessment or reassessment with the supporting records.