Every time you file a tax return, CRA sends a Notice of Assessment (NOA). Reading it carefully protects you from missed opportunities and unnoticed errors.
What Your NOA Shows You
- Assessed income and tax payable
- Your refund or balance owing
- RRSP deduction limit for next year
- TFSA contribution room
- Home Buyers' Plan or LLP repayment balance
- Non-capital loss carryover available
What CRA Changed
If CRA adjusted any line, it will be noted with an explanation. Common adjustments: disallowed deductions, math errors, benefit clawbacks, and credits applied differently than filed.
If You Disagree: File an Objection
You have 90 days from the NOA date to file a Notice of Objection (Form T400A). Missing this window can permanently foreclose your right to appeal — always calendar the 90-day deadline when you receive your NOA.
Quebec's Avis de Cotisation
Revenu Québec issues a separate Quebec Notice of Assessment after processing your TP-1. Review it the same way — it shows Quebec-specific adjustments, Solidarity Credit approval, and provincial benefit calculations.