TREADSTONE LAW · ONTARIO · DIGITAL LEGAL SERVICES · EST. MMXXI ·TSL
Licensed by the Law Society of OntarioFlat fees published upfrontWe reply to messages within 1 business daySign in
№ ix Tax

Can the Tax Court Hear a Dispute Over a Capital Gains Reassessment in Canada?

See how a capital gains or principal residence reassessment can reach the Tax Court of Canada, the deadlines that apply, and what records help your case.

Tax5 min readTSLBy the Treadstone Law Team · CanadaUpdated November 13, 2026
← All articles
Key takeaways
  • You must object to the reassessment first, and the Tax Court can then vacate or vary it.
  • The usual appeal deadline is 90 days from the notice confirming or reassessing.
  • Smaller disputes may qualify for the informal procedure, where the amounts in issue are $25,000 or less.

If the CRA has reassessed you on the sale of a property, or has denied your principal residence claim, you may disagree with the result. The Tax Court of Canada is the court that hears these disputes, but a Tax Court judgment is not always the end of the road, because it can be appealed to the Federal Court of Appeal, and informal procedure judgments can be appealed only on limited grounds such as lack of jurisdiction, breach of procedural fairness or an error of law.

This article walks through the path from objection to court, the choices you face about procedure, and the kind of preparation that tends to help. It explains how things generally work; your facts decide the outcome.

This article covers Canadian federal tax law, which applies in every province.

Start with a notice of objection

A notice of objection must be in writing and set out the reasons and all relevant facts. For individuals (other than trusts) and graduated rate estates, the deadline is the later of one year after the filing-due date or 90 days after the notice of assessment was sent. For others, it is 90 days.

Once the CRA receives it, the Minister must reconsider the assessment and vacate, confirm or vary it, or reassess, and then notify you in writing.

There are exceptions. If the Minister reassessed only to reflect certain matters already determined, the objection must be made within 90 days and is limited to reasons that cannot reasonably be regarded as already dealt with. You also cannot appeal an issue on which you waived in writing the right to object or appeal.

Taking the issue to the Tax Court

After you have served a notice of objection, you may appeal to the Tax Court of Canada to have the assessment vacated or varied once the Minister has confirmed or reassessed. The deadline is 90 days from the day the notice of confirmation or reassessment was sent. The CRA says the Court must receive your notice of appeal within that 90 days.

If the Minister has not notified you of a decision, you may appeal once 90 days have passed after the notice of objection was served.

If you miss the deadline, you can ask the Court for an extension, but the application must be made within one year after the 90-day period expires. You need to show, among other things, that you applied as soon as circumstances permitted and that there are reasonable grounds for the appeal.

Informal or general procedure

The informal procedure applies where the aggregate of all amounts in issue is $25,000 or less, or the loss in issue is $50,000 or less, and you elect it. Many property disputes involve more tax than that. If the amounts exceed $25,000 or the loss exceeds $50,000, the Court orders the general procedure, unless you elect to limit the appeal to those amounts.

FeatureInformal procedureGeneral procedure
Who can appearYou, counsel or an agentAn individual, or counsel
Crown replyWithin sixty days after the notice of appeal is transmittedWithin 60 days after service of the notice of appeal
Precedent valueNot treated as a precedentNot stated here

If you limit your appeal to stay in the informal procedure, the judgment is deemed to state that the amounts will not be reduced by more than $25,000 or the loss increased by more than $50,000. Weigh that limit carefully.

What proof helps

In the general procedure, allegations of fact in your notice of appeal that the Crown does not deny in its reply are deemed admitted. The reply sets out facts admitted and denied and the issues to be decided, so it shows you what the CRA is relying on. Each party also files a list of documents within thirty days following the closing of the pleadings.

Under the informal procedure, the Court is not bound by legal or technical rules of evidence. Even so, clear paperwork makes your account easier to believe.

What to do next

A filed appeal can still settle. With your written consent, the Minister may reassess at any time to dispose of an appeal.

Frequently asked questions

Can I appeal directly to the Tax Court after a reassessment?

Not usually. You first serve a notice of objection, and the right to appeal arises once the Minister has confirmed the assessment or reassessed. If the Minister does not decide, you may appeal after 90 days have passed from service of the objection.

Will my hearing be public?

Hearings are generally open, but a hearing may be held in camera if the circumstances justify it and a party applies. A confidentiality order may also be sought by motion.

Is a Tax Court judgment final?

Not necessarily. A notice of appeal to the Federal Court of Appeal must be filed within 30 days, not counting days in July and August, after the judgment. Informal procedure judgments can be appealed only on limited grounds, such as lack of jurisdiction, breach of procedural fairness or an error of law.

What if I just want penalties or interest cancelled?

A request to waive or cancel penalties or interest under section 220(3.1) is an administrative relief decision, not a Tax Court appeal. An interest-only dispute can sometimes be heard under the informal procedure.

Sources

Links go to official government, court and regulator pages. The law changes — confirm you are reading the current version.

This article is general information, not legal advice. Reading it does not create a lawyer-client relationship. Canadian laws, tax rates, and government programs change, and how the law applies depends on your specific facts. For advice about your situation, speak with a tax lawyer or accountant. Reach us at 1-844-900-1070 or send our Team a message.

This is a tax question

A tax planning consult with us is from $563.87, tax included. Third-party fees are extra.

ContactStart a File →