Notice of Objection

Tax

A Notice of Objection is the formal way to dispute a CRA assessment or reassessment, filed within 90 days to have the matter reviewed by the independent Appeals Division.

If you disagree with how the CRA assessed your return, you file a Notice of Objection. This moves your file to the Appeals Division, which reviews it independently of the auditor or assessor who made the original decision. It is the required first step before you could take a matter to the Tax Court of Canada.

The deadline is strict: generally 90 days from the date on the notice for a corporation, and 90 days or one year after the filing due date for an individual, whichever is later. A well-supported objection, with documents and a clear explanation, resolves many disputes without ever reaching court.

Example

The CRA reassesses your corporation and denies a $30,000 expense. You file a Notice of Objection within 90 days, attaching the invoices and explaining the business purpose, and Appeals reverses the reassessment.

Need help with notice of objection?

Our certified accounting firm handles this for businesses and individuals across Canada, at fixed fees with no surprises.

Book a Free 15-Minute Call

Notice of Objection Frequently Asked Questions

Common questions regarding our compliance workflows and service guarantees.

When you genuinely disagree with an assessment or reassessment and have documentation to support your position. It must be filed within the strict deadline, generally 90 days.
The Appeals Division reviews the file independently. If they still rule against you, you can appeal to the Tax Court of Canada within 90 days of their decision.
Still Searching for the Answer You Need? View FAQ Page or Contact Us

People Also Ask About Notice of Objection

The questions Canadians actually search on this topic, answered plainly. Browse every question in the Canadian tax answers directory.

Your marginal tax rate is the rate on your next dollar of income, not on your income as a whole. Federally for 2026 that is 14%, 20.5%, 26%, 29% or 33% depending on the bracket you have reached, and your province's rate stacks on top, so an Ontario earner in the 26% federal band adds the Ontario rate for their own band. The two sets of thresholds rarely line up, so add the two rates together.

Multiply the assessed value of the property by the tax rate for its property class. Assessment is set by a provincial assessment authority on its own cycle and increases are often phased in, so the value lags the market. The rate is set each year by the municipality out of its budget, with an education portion added by the province. Both figures appear on your notice, which is why identical homes in different municipalities carry different bills.

You claim credits on your return, and they are applied against the tax already calculated on your taxable income. Non-refundable federal and provincial credits are each worked out by multiplying the eligible amount by the lowest rate for that jurisdiction, so the same claim is worth different money at each level. Unused amounts are lost at year end unless the particular credit allows a carry-forward or a transfer to a spouse. Refundable credits are paid whether or not tax is owing.

A stipend is taxable unless a specific exemption applies, and what matters is the nature of the payment. Pay for work such as a research or teaching assistantship is employment income. A research grant is reported as income with eligible research expenses deducted against it. An award for study can qualify for the scholarship exemption if you are enrolled in a qualifying programme. The payer issues an information slip, and the box used signals the treatment.

Udit Gupta, founder of Tax Filings Canada

Reviewed and fact-checked by Udit Gupta

Ex Big 4 — Ernst & Young, Deloitte · International & cross-border tax specialist · CPA Canada (In-Depth Tax Program) · Chartered accountant, ICAI & MIA

Udit Gupta has over 15 years of experience helping corporations and business owners with corporate structuring, corporate tax filing, bookkeeping, payroll, GST/HST, cross-border tax and CRA representation. Big 4 trained at Ernst & Young and Deloitte, and qualified as a chartered accountant in India and again in Malaysia, he founded his accounting practice in 2014 to serve entrepreneurs, startups and non-resident business owners across Canada. View full member bio.

The Institute of Chartered Accountants of India — member 521458 · Malaysian Institute of Accountants — member CA 44667 · Ex Big 4: Ernst & Young, Deloitte · CPA Canada (In-Depth Tax Program), completed 19 Dec 2023 · In-Depth GST/HST Part I, 12 Jul 2022 · Part II, 5 Jul 2023

Editorial policy. Every page is researched against primary sources — the Income Tax Act, CRA publications and CPA Canada guidance — and every rate or threshold is stated with the tax year it applies to.

Free 15 Min Consultation for Businesses

Ready to get started with Tax & Accounting?

Talk to a professional tax accountant about your situation. No obligation, and you only pay once the work is complete and you have approved it.

  • Tax accountant led team
  • Fixed fees, no hourly billing
  • Pay only after you approve

Start in two minutes

Tell us what needs filing and we quote a fixed fee

Personal, corporate, sales tax, payroll or bookkeeping: describe it below and you get a fixed price to approve before anything starts.

  • Fixed fee agreed before work starts
  • Pay after the service
  • Free 15-minute consultation

24/7 Helpline: +1 (416) 619-0068

Secure Fixed Quote

Fill details below to lock in pricing and get started today.

Our Partners Are Alumni of the World's Top Accounting and Tax Institutions

Chartered Professional Accountants Canada AICPA — American Institute of Certified Public Accountants Institute of Chartered Accountants of India Malaysian Institute of Accountants