Tax Court of Canada: When and How to Appeal
CRA confirmed your objection and you still disagree. The next step is the Tax Court of Canada. This guide explains when to appeal, which procedure to use, the 90-day deadline, what the notice of appeal must include, the collection hold, settlement options and what happens at the hearing. Written by a licensed Ontario CPA who represents clients through the full objection and appeal process.
The Full Path: From CRA Assessment to Tax Court
You cannot go directly to Tax Court. The Income Tax Act requires you to follow a specific dispute resolution path. Each step must be completed before the next one opens. Here is the complete sequence.
| Step | What Happens | Deadline | Outcome |
|---|---|---|---|
| 1. CRA issues a Notice of Assessment or Reassessment | CRA assesses your T1, T2 or GST/HST return. The assessment may change your reported income, deny deductions, add penalties or adjust your HST balance. | N/A | You receive the Notice of Assessment (NOA) or Notice of Reassessment (NOR) in My Account or by mail. |
| 2. You file a Notice of Objection with CRA | You formally dispute the assessment by filing a Notice of Objection. CRA's Appeals Division reviews the assessment independently from the auditor who issued it. | 90 days from the date on the NOA/NOR (income tax). 90 days for GST/HST. | CRA either reassesses (changes in your favour), confirms (upholds the original), or partially reassesses. |
| 3. CRA issues a Notice of Confirmation or Reassessment | CRA Appeals completes their review and sends you a Notice of Confirmation (they uphold the assessment) or a Notice of Reassessment (they change it). If they change it and you still disagree with the revised amount, you can appeal. | CRA has no fixed deadline. Typical processing: 6 to 18 months for income tax, 6 to 12 months for GST/HST. | If confirmed: the Tax Court option opens. If reassessed: you can accept or appeal the revised amount. |
| 4. You file a Notice of Appeal with the Tax Court of Canada | You file a written Notice of Appeal with the Tax Court, choosing either the Informal Procedure or the General Procedure. The Court assigns a file number and serves CRA with a copy. | 90 days from the date of CRA's Notice of Confirmation or Reassessment. | The appeal is formally before the Tax Court. CRA's Department of Justice assigns a lawyer to respond. |
| 5. Tax Court hearing | The case is heard by a Tax Court judge. You present your evidence and arguments. CRA's lawyer presents theirs. The judge decides. | 12 to 24 months after filing (typical for Informal). 18 to 36 months for General Procedure. | The Tax Court issues a judgment: the appeal is allowed (you win), dismissed (CRA wins), or partially allowed. |
You Can Also Appeal If CRA Takes Too Long: If CRA has not responded to your Notice of Objection within 90 days (income tax) or 180 days (GST/HST), you do not have to wait. You can file directly with the Tax Court without a Notice of Confirmation. This is called an appeal "where the Minister has not acted." It forces CRA to respond through the Court process instead of leaving your objection in limbo. We have used this option for clients whose objections were sitting unresolved for 12 to 18 months.
For the initial objection stage (Step 2), please see our detailed CRA objection and appeals guide.
Informal Procedure vs. General Procedure: Which One to Use
The Tax Court of Canada offers two procedures. The choice depends on the amount of tax in dispute and the complexity of the case. You choose the procedure when you file the Notice of Appeal.
| Factor | Informal Procedure | General Procedure |
|---|---|---|
| Tax in dispute (income tax) | $25,000 or less per tax year (federal tax only, excluding interest and penalties) | Over $25,000 per tax year, or any amount if you elect General Procedure |
| Tax in dispute (GST/HST) | $50,000 or less in HST assessed | Over $50,000 in HST assessed |
| Loss in dispute | $50,000 or less in losses | Over $50,000 in losses |
| Filing fee | $100 | $250 |
| Legal representation | Not required. You can represent yourself, have your CPA attend, or hire a lawyer. The process is designed for self-represented taxpayers. | Legal representation strongly recommended. Full litigation rules apply. Discoveries, motions, briefs and expert reports may be required. |
| Rules of evidence | Relaxed. The judge may accept any evidence they consider credible and relevant, even if it would not be admissible under formal rules of evidence. | Full rules of evidence apply. Documents must be properly authenticated. Hearsay is generally excluded. Expert reports must meet the Court's requirements. |
| Discovery process | No examinations for discovery. No document production demands. No interrogatories. | Full discovery: oral examinations under oath, document production, undertakings. Both sides can examine the other's witnesses before trial. |
| Hearing format | Simplified. The judge asks questions directly. Hearings typically last 1 to 3 hours. Often completed in a single day. | Full trial. Opening statements, examination-in-chief, cross-examination, re-examination, closing arguments. Can last 1 to 5 days or longer. |
| Costs awarded | Limited. If you win, the Court may award costs (typically $100 to $500). If you lose, the Court generally does not award costs against you. | Costs can be significant. If you lose, the Court may order you to pay a portion of CRA's legal costs ($5,000 to $25,000+). If you win, CRA may be ordered to pay your costs. |
| Appeal of the Tax Court decision | Very limited. Informal Procedure decisions can only be appealed to the Federal Court of Appeal on questions of law, not questions of fact. | Full right of appeal to the Federal Court of Appeal on both law and fact. |
| Typical timeline to hearing | 12 to 18 months from filing | 18 to 36 months from filing (sometimes longer for complex cases) |
Choose Carefully. The Procedure Affects Everything. If your dispute is under $25,000 in federal income tax, the Informal Procedure is almost always the right choice. It is faster, cheaper, lower-risk (no adverse cost awards) and does not require a lawyer. If your dispute is over $25,000, you are in General Procedure by default. General Procedure cases are full litigation: discoveries, document production, potential expert witnesses and the risk of paying CRA's legal costs if you lose. We help clients assess whether to proceed, settle at the objection stage or accept the assessment before committing to a General Procedure appeal.
The 90-Day Deadline: Miss It and You Lose Your Right to Appeal
| Deadline Scenario | Your Deadline to Appeal | What Happens If You Miss It |
|---|---|---|
| CRA issues a Notice of Confirmation | 90 days from the date on the Notice of Confirmation | You lose the right to appeal that assessment to Tax Court. The assessment becomes final and CRA collects the full amount. |
| CRA issues a Notice of Reassessment (after objection) | 90 days from the date on the Notice of Reassessment | Same. The revised assessment becomes final. |
| CRA has not responded to your income tax objection | You can appeal after 90 days from filing the objection (no upper deadline while CRA is still processing) | No penalty for waiting. But the longer you wait, the longer collection action may continue (income tax collections are not fully held during the objection stage for all tax types). |
| CRA has not responded to your GST/HST objection | You can appeal after 180 days from filing the objection | Same as income tax. No penalty for waiting, but collections may proceed. |
| You missed the 90-day deadline | You can apply for an extension within 1 year of the deadline (total: 1 year + 90 days from the Notice of Confirmation) | The extension application must show you intended to appeal within the 90 days and there is a reasonable explanation for the delay. The Tax Court grants extensions on a case-by-case basis. |
The 90-Day Clock Starts on the Date Printed on the Notice, Not the Date You Receive It: CRA mails the Notice of Confirmation by regular mail. If the notice is dated March 1 and you receive it on March 8, your 90-day deadline runs from March 1 (the date printed on the notice), not March 8. Your appeal must be filed with the Tax Court by May 30. If you are away, on vacation or do not check your mail, the deadline still applies. Check My Account regularly. If you receive a Notice of Confirmation, contact us immediately. We assess the case and file the appeal within the 90-day window if warranted.
How to File a Tax Court Appeal
Four steps. We handle the filing and representation. You continue running your business.
Assess the Case
We review the CRA assessment, the objection outcome, the dollar amount in dispute and the strength of your position. We advise whether to appeal, settle or accept.
Draft the Notice of Appeal
We prepare the written Notice of Appeal with the facts, issues, statutory provisions and the relief sought. Filed with the Tax Court within the 90-day deadline.
Settlement Negotiation
After filing, CRA's Department of Justice contacts us. Many cases settle before the hearing. We negotiate the best outcome without the uncertainty of trial.
Hearing (If Needed)
If no settlement is reached, we prepare your evidence, organize your documents and attend the hearing with you. The judge issues a decision.
CRA Confirmed Your Objection? We Can Help You Appeal.
We assess your case, file the Notice of Appeal and represent you through settlement or hearing.
What the Notice of Appeal Must Include
The Notice of Appeal is the document that starts your Tax Court case. It must clearly state the facts, the issue and the legal basis for your appeal. A poorly drafted notice can weaken your case before it begins.
| Required Element | What to Include | Common Mistake |
|---|---|---|
| The assessment being appealed | The tax year(s), the Notice of Assessment or Reassessment date, the Notice of Confirmation date and the amount of tax, interest and penalties in dispute. | Not identifying the specific assessment being appealed. The Court needs the exact assessment, not a general complaint about CRA. |
| Statement of facts | A clear, numbered list of the facts relevant to the dispute. Only facts, not arguments. Written in plain language. Each fact should be something you can prove with a document or testimony. | Mixing facts with arguments. Writing emotionally about how unfair CRA is. The judge reads the facts first and forms an impression before hearing arguments. |
| The issue(s) in dispute | A precise statement of the legal or factual question the Court must decide. Example: "Whether the Appellant is entitled to deduct $45,000 in subcontractor expenses for the 2024 taxation year under section 9 of the Income Tax Act." | Vague issues like "CRA disallowed my expenses." The issue must identify the specific provision of the Act and the specific amount. |
| Statutory provisions relied upon | The sections of the Income Tax Act, Excise Tax Act or other legislation that support your position. Example: sections 9, 18, 67 of the ITA for business expense deductions. | Not referencing any statutory provisions. The Tax Court applies the law as written. Your notice must tell the judge which sections of the Act support your claim. |
| Relief sought | A clear statement of what you want the Court to do. Example: "The Appellant requests that the appeal be allowed and the reassessment be vacated" or "...that the reassessment be referred back to the Minister for reassessment on the basis that the Appellant is entitled to deduct $45,000 in subcontractor expenses." | Not specifying the relief. The Court needs to know exactly what you are asking for: vacate the assessment, reduce it or refer it back for reassessment. |
| Supporting documents (list) | A list of the documents you intend to rely on at the hearing: receipts, invoices, contracts, bank statements, logbooks, correspondence with CRA. Actual documents are submitted later, not with the notice. | Attaching all documents to the notice. The notice lists the documents. The documents themselves are organized and submitted as part of the hearing preparation. |
Does Filing a Tax Court Appeal Stop CRA Collections?
| Tax Type | Collection Hold During Objection | Collection Hold During Tax Court Appeal |
|---|---|---|
| Income tax (individuals and corporations) | Yes. CRA cannot collect the disputed amount while the objection is being processed. Interest continues to accrue. | Yes. CRA cannot collect the disputed amount while the Tax Court appeal is active. Interest continues to accrue. |
| GST/HST | No automatic hold. CRA can collect GST/HST during the objection period. You can request a hold by providing security or demonstrating hardship. | No automatic hold. CRA can collect during the Tax Court appeal. You can negotiate a hold or provide security. |
| Payroll (CPP, EI, source deductions) | No hold. CRA can collect immediately. Payroll trust amounts are not subject to the objection or appeal collection hold. | No hold. CRA can collect at any time. Payroll amounts are considered trust funds held for employees and are not stayed by objection or appeal. |
| Penalties | Interest accrues on penalties during the objection and appeal. If you win, interest on the penalty portion is reversed. | Same as objection. Interest accrues on penalties throughout. Reversed if you win. |
Interest Accrues the Entire Time: Even though CRA cannot collect disputed income tax during an objection or Tax Court appeal, compound interest continues to accrue on the disputed amount from the original assessment date through to the resolution. If you lose the appeal after 2 years, you owe the original tax plus 2 years of compound interest. On a $50,000 reassessment at CRA's prescribed interest rate (approximately 9% to 10% in 2025/2026), the interest after 2 years is approximately $10,000. Factor the interest cost into your decision to appeal. If your case is weak, the interest can exceed the potential savings from winning.
When to Appeal vs. When to Accept the Assessment
| Scenario | Appeal? | Why |
|---|---|---|
| CRA denied legitimate expenses you have full documentation for (receipts, invoices, contracts, logbooks) | Yes | Strong factual case. The Tax Court will review the evidence independently. If your documents prove the expenses were incurred and are deductible, you will likely win. |
| CRA applied a legal interpretation you believe is wrong (e.g., characterizing income as personal benefit vs. business expense) | Yes, with legal review | Legal interpretation disputes are exactly what the Tax Court is designed to resolve. Have a tax lawyer or experienced CPA review the legal argument before committing. |
| CRA denied expenses but your documentation is incomplete or missing | Probably not | The Tax Court reviews evidence. If you cannot produce receipts, invoices or logbooks, the Court cannot rule in your favour. Strengthen your documentation before appealing. |
| The amount in dispute is under $5,000 | Consider the cost | Even under Informal Procedure, the time and effort to prepare and attend a hearing may exceed the tax at stake. Settlement at the objection stage is often more cost-effective. |
| CRA assessed gross negligence penalties (section 163(2)) | Almost always appeal | Gross negligence penalties are severe (50% of the understated tax). CRA has the burden of proof to show you were grossly negligent or made a false statement knowingly. Many 163(2) penalties are overturned at Tax Court because CRA cannot meet the burden. |
| You missed the objection deadline and have no right to appeal | Cannot appeal | If the 90-day objection deadline was missed and no extension was granted, the assessment is final. Tax Court will not hear the appeal. Taxpayer relief (subsection 220(3.1)) may offer limited options for penalty and interest waiver, but the tax itself cannot be changed. |
Settlement at Tax Court: Most Cases Never Go to Trial
After you file a Notice of Appeal, CRA's Department of Justice assigns a litigation lawyer to your case. The lawyer reviews CRA's position, your notice of appeal and the evidence. In many cases, the Department of Justice contacts your representative to discuss settlement before the hearing date. Settlement is a negotiated resolution: you agree to accept a revised assessment that both sides can live with, and the appeal is withdrawn.
| Settlement Factor | What Happens |
|---|---|
| Timing | Settlement discussions typically begin 3 to 6 months after the Notice of Appeal is filed. The Department of Justice may propose a settlement any time before the hearing. Some cases settle on the morning of the hearing itself. |
| Who negotiates | Your CPA or lawyer negotiates with CRA's litigation lawyer. You do not deal directly with the auditor or CRA Appeals at this stage. The Department of Justice is separate from CRA's audit and appeals divisions. |
| What can be settled | The tax amount, the characterization of income, the deductibility of expenses, the quantum of penalties and the allocation of costs. Interest is calculated by CRA based on the settled tax amount and is not separately negotiated. |
| Consent to Judgment | If a settlement is reached, both parties sign a Consent to Judgment. The Tax Court issues a judgment based on the consent without a hearing. The settled amount becomes the final assessment. |
| Settlement rate | The majority of Tax Court cases settle before trial. Many settle for a compromise amount: CRA accepts some of your expenses, you accept some of their adjustments. Full wins and full losses at trial are less common than partial settlements. |
Filing the Appeal Often Produces Better Results Than the Objection Alone: CRA's Appeals Division and the Department of Justice are different organizations with different mandates. The Appeals officer may have upheld the assessment based on a conservative interpretation. The Department of Justice litigation lawyer evaluates the case based on what a Tax Court judge would likely decide. If the Department of Justice believes CRA would lose at trial, they will offer a favourable settlement. We have seen cases where the objection was fully denied, but a settlement at Tax Court reduced the reassessment by 60% to 80% because the Department of Justice recognized the weakness in CRA's position once the case was in front of a judge.
We Handle the Entire Process: Objection Through Tax Court
CRA objection, Tax Court appeal, Department of Justice settlement negotiation and hearing representation. Flat fee for objections. Consultation is free.
Typical Timelines: From Objection to Tax Court Judgment
| Stage | Informal Procedure | General Procedure |
|---|---|---|
| CRA objection processing | 6 to 18 months | 6 to 18 months |
| File Notice of Appeal | Within 90 days of CRA confirmation | Within 90 days of CRA confirmation |
| CRA Reply filed | 60 days after service of appeal | 60 days after service of appeal |
| Settlement discussions | 3 to 9 months after filing | 6 to 18 months after filing (after discoveries) |
| Hearing scheduled | 12 to 18 months from filing | 18 to 36 months from filing |
| Judgment issued | 1 to 3 months after hearing | 1 to 6 months after hearing |
| Total time: objection start to Tax Court judgment | 18 to 36 months | 24 to 54 months |
10 Tax Court Appeal Mistakes to Avoid
| # | Mistake | Consequence |
|---|---|---|
| 1 | Missing the 90-day appeal deadline | Right to appeal lost. Assessment becomes final. Extension application possible within 1 year but not guaranteed. |
| 2 | Appealing without first filing a Notice of Objection | Tax Court will dismiss the appeal. The objection is a mandatory prerequisite. |
| 3 | Choosing General Procedure when Informal would suffice | Higher filing fee ($250 vs $100), discovery costs, potential adverse cost award if you lose ($5,000 to $25,000+), and a longer timeline. |
| 4 | Writing the Notice of Appeal as a letter of complaint instead of a legal document | The judge reads your notice first. An emotional complaint without structured facts, issues and statutory provisions weakens your case before the hearing starts. |
| 5 | Not citing the statutory provisions that support your position | The Tax Court applies the Income Tax Act or Excise Tax Act as written. If you do not identify the sections that support your claim, the judge must guess what law you are relying on. |
| 6 | Failing to organize your evidence before the hearing | Documents should be tabbed, indexed and in chronological order. Handing the judge a shoebox of receipts loses credibility immediately. |
| 7 | Not considering settlement before trial | Trials are uncertain. A 70% settlement is often better than a 50/50 chance of winning 100% or losing 100%. CRA's Department of Justice is frequently willing to negotiate. |
| 8 | Assuming the same arguments that failed at objection will work at Tax Court | If CRA rejected your argument at objection, present additional evidence or a different legal argument at Tax Court. Simply repeating the same position without new support produces the same result. |
| 9 | Not understanding the burden of proof | In most income tax appeals, the taxpayer has the burden of proof. You must show, on a balance of probabilities, that CRA's assessment is wrong. CRA has the burden for penalties under section 163(2). |
| 10 | Representing yourself in General Procedure without legal support | General Procedure involves discoveries, motions, document production and full trial rules. Self-represented taxpayers in General Procedure face a significant disadvantage against experienced Department of Justice lawyers. |
Frequently Asked Questions: Tax Court of Canada
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