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How to Read Your Notice of Assessment (NOA) in Canada in 2026

Updated

Sections of a Notice of Assessment

If you are taking action after reading your NOA, review what a Notice of Assessment is and verify figures in how to use CRA My Account. Choose how much RRSP room you have for contribution planning, or why you owe taxes this year for balance diagnosis.

Section What It Shows What to Check
Tax Centre Which CRA office processed your return Informational only
Assessment date When CRA processed your return Marks the start of the 90-day objection period
Total income (Line 15000) All income reported Verify it matches your return
Net income (Line 23600) Income after deductions Used for benefit calculations (CCB, GST/HST credit)
Taxable income (Line 26000) Income after deductions and exemptions Tax is calculated on this amount
Total federal tax Federal tax calculated Compare to your return
Total credits and deductions Tax credits applied Verify all credits were accepted
Refund or balance owing Amount CRA owes you or you owe CRA This is the bottom line
RRSP deduction limit Maximum RRSP contribution for next year Critical for RRSP planning
Unused RRSP contributions Contributions made but not yet deducted Carry forward to future years
Changes and explanations Adjustments CRA made to your return Read carefully — may indicate errors

How to Read Your RRSP Information

NOA Line What It Means Example
RRSP deduction limit for 2026 Maximum you can contribute for the current tax year $32,490
Unused RRSP contributions Amount you contributed in prior years but have not yet deducted $5,000
Available RRSP contribution room Deduction limit minus unused contributions $27,490
Pension adjustment (PA) Reduces RRSP room if you have a workplace pension $8,000

Your RRSP deduction limit = 18% of prior year’s earned income (up to the annual max of $32,490 for 2026) minus pension adjustment, plus any unused room carried forward.

Understanding Your Refund or Balance Owing

NOA Result What It Means What to Do
Refund You overpaid taxes during the year CRA will direct deposit or mail a cheque
Balance owing You owe additional tax Pay by the deadline to avoid interest
$0 (nil assessment) Tax paid exactly matched tax owed Nothing to do
Reassessment CRA changed an amount on your return Review changes; file an objection if you disagree

Common CRA Changes on Your NOA

Change What Happened What to Do
“We adjusted your return” CRA modified one or more lines Compare NOA to your filed return
RRSP deduction disallowed You exceeded your contribution room or claimed too much Verify your RRSP room; may need to fix over-contribution
Tuition credit adjusted CRA recalculated your tuition tax credit Check T2202 slip against what you claimed
Medical expenses disallowed Receipt not accepted or below threshold Keep all receipts; refile or object
Donation credit adjusted CRA reduced your charitable donation claim Verify official receipts from registered charities
Income added CRA received a slip you did not report (T4, T5, T3) Check if you missed a slip; amend if needed
Provincial credit adjusted Changes to provincial tax credits Verify provincial amounts

Where to Find Your NOA

Method How Timeline
My CRA Account (online) Log in → Tax Returns → Notice of Assessment 1–2 weeks after e-filing
Express NOA (in tax software) Available immediately after e-filing in supported software Minutes after filing
By mail Paper copy mailed to your address on file 4–8 weeks after filing
CRA mobile app (MyCRA) Same as My CRA Account 1–2 weeks after e-filing
Phone Call CRA at 1-800-959-8281 to request a copy Mailed within 10 business days

What to Do If You Disagree

Step Action Deadline
1 Review the NOA explanation carefully
2 Check if you made an error on your return
3 If CRA is wrong, file a formal objection (T400A) Within 90 days of the NOA date
4 File online through My CRA Account → “Register a formal dispute” Within 90 days
5 Or mail/fax Form T400A to your Tax Centre Within 90 days
6 CRA will review and issue a decision 6–12 months typically
7 If still unresolved, appeal to the Tax Court of Canada Within 90 days of CRA decision

When You Need Your NOA

Situation Which NOA Who Asks
Mortgage application Last 2 years Lender
Mortgage renewal Most recent Lender
First-time My CRA Account setup Most recent (for security code) CRA
Student loan application (OSAP, etc.) Most recent Provincial student aid
RRSP planning Most recent For contribution room
Government benefits verification Most recent Service Canada, CRA
Rental application Most recent Some landlords
Immigration application Last 3 years IRCC