Review Letter ("We are reviewing your return")
Not an audit. A routine spot-check of one claim — medical expenses, tuition, childcare, donations, moving costs. Send exactly what they ask for by the deadline, or the claim is disallowed automatically.
⏰ The deadlines
| Response due | The date printed on the letter — typically around 30 days |
| If you miss it | The claim is denied and you're reassessed; you can still send documents after and ask for an adjustment |
✅ How to defuse it: Sending complete supporting documents by the deadline — most reviews close with no change when documentation is complete.
🛡️ Defenses & defects to check
- Reply through CRA My Account's "Submit documents" with the reference number — it creates a confirmation record.
- Send everything asked for in ONE complete package; partial replies cause denials.
- Need more time? Call the number on the letter BEFORE the deadline — extensions are routinely given.
💡 What the pros know
- Keep receipts for 6 years — the review program is exactly why.
- A review is not an accusation; a clean response actually lowers your future review odds.
Related forms: Notice of Reassessment · Benefit Validation / Clawback Letter (CCB, GST/HST Credit)
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Decode it freeGeneral tax information, not tax or legal advice — verified against official guidance but programs and deadlines change. Confirm on canada.ca or with a licensed tax professional; free help exists at community tax clinics (CVITP).