Tax Court of Canada
The Tax Court of Canada, explained — and litigated.
When an objection fails or the CRA won't move, the Tax Court of Canada is where a tax dispute is finally decided. This is our working library on how appeals run, what the Court expects, and how real decisions have come out — with the official forms and rules in one place.
Overview
A focus on Tax Court litigation
A Tax Court appeal is a fresh, independent look at a CRA assessment by a judge — not another round with the auditor. The two procedures (Informal and General) have different thresholds, costs, and formality, and the taxpayer usually carries the burden of disproving the Minister’s assumptions.
The materials below cover the process end to end, and the case comments analyse how the Court has actually applied the law. Our Tax Court representation is described on the Tax Court of Canada service page.
Resources
Official forms & Rules of Procedure
The Tax Court’s own forms and the Rules of Procedure, linked directly to the source. These are official government documents; we link them here for convenience and keep our own plain-English guides alongside them.
Notice of Appeal forms
- Notice of Appeal — General Procedure (Form 21(1)(a)) ↗
The prescribed form to start a General Procedure appeal (PDF, Tax Court of Canada).
- Notice of Appeal — Informal Procedure (Schedule 4) ↗
The Informal Procedure notice; a plain letter that sets out the facts and reasons is also accepted.
- All Tax Court forms & how to start ↗
The Court's own "Get Started" page with every form and filing method.
Rules of Procedure & governing statute
- Tax Court of Canada Rules (General Procedure), SOR/90-688a ↗
The full General Procedure rules on the Justice Laws Website.
- Tax Court of Canada Rules (Informal Procedure), SOR/90-688b ↗
The Informal Procedure rules for appeals under the dollar-limit thresholds.
- Tax Court of Canada Act (R.S.C., 1985, c. T-2) ↗
The statute that establishes the Court and its jurisdiction.
Case library
Comments on real Tax Court decisions
Plain-English analyses of published Tax Court of Canada (and Federal Court of Appeal) decisions — the facts, what the Court decided and why, and what it means for taxpayers in the same situation. Each is commentary on a public decision and general information, not legal advice.
When Personal and Business Blur: Peach v. Canada and the Limits of Deductible Business Expenses Under Sections 18(1)(a) and 67
In Peach v. Canada (2022 FCA 163), the Federal Court of Appeal upheld the disallowance of a taxpayer's business and rental losses. A look at how courts apply the purpose test in s.18(1)(a) and the reasonableness limit in s.67 when personal and family elements blur an activity.
Read →Capital Gain or Business Income? The Badges of Trade at the Tax Court — Wall v. The Queen, 2019 TCC 168
In Wall v. The Queen, 2019 TCC 168 (affirmed 2021 FCA 132), the Tax Court used the badges of trade to recharacterize a real estate agent's home sales as fully taxable business income, not capital gains — and upheld gross negligence penalties.
Read →When a Director Escapes Personal Liability: Hamad v. The Queen and the Due-Diligence Defence Under Section 227.1
In Hamad v. The Queen (2019 TCC 137), the Tax Court allowed a director's due-diligence defence to a section 227.1 assessment for unremitted source deductions. A look at why he succeeded under the demanding Buckingham standard.
Read →When a Leveraged Donation Is Not a Gift: Kossow v. The Queen, 2012 TCC 325
In Kossow v. The Queen, 2012 TCC 325 (affirmed 2013 FCA 283), the Tax Court denied donation tax credits for a leveraged charity shelter. The reason is the heart of every gifting case: an interest-free loan was a benefit that vitiated the gift.
Read →Wilful Blindness vs. Negligence: What Wynter v. Canada (2017 FCA 195) Means for 163(2) Penalties
In Wynter v. Canada, the Federal Court of Appeal set the standard for subsection 163(2) gross-negligence penalties: wilful blindness is deliberate ignorance, while gross negligence is judged objectively. A close look at the decision and what it means for taxpayers.
Read →When a Valid GST Number Isn't Enough: Comtronic Computer and the ITC Documentary Rules
In Comtronic Computer Inc. v. The Queen, 2010 TCC 55, the Tax Court denied roughly $500,000 in input tax credits because the GST numbers on the supplier invoices, though genuine, belonged to other registrants. A case comment on the documentary rules under section 169(4) ETA.
Read →When Many Conditions Don't Add Up to a 'Marked Restriction': Laing v. The Queen (2019 TCC 267) and the Disability Tax Credit
In Laing v. The Queen, 2019 TCC 267, the Tax Court explained how the disability tax credit's cumulative-effect rule actually works — and why several real, documented conditions can still fall short of the 'markedly restricted' threshold.
Read →Rebutting a CRA Net Worth Assessment: Lessons from Halls v. The Queen, 2022 TCC 14
In Halls v. The Queen, 2022 TCC 14, the Tax Court upheld a CRA net worth assessment of a restaurant owner. The decision is a clear roadmap of what taxpayers must actually prove to displace the Minister's assumptions.
Read →The 10-Year Clock on Interest Relief: What Bozzer v. Canada (2011 FCA 186) Means for Taxpayers
In Bozzer v. Canada, the Federal Court of Appeal held that the 10-year limit on CRA interest relief runs from when interest accrues, not when the tax debt arose — letting taxpayers cancel recent interest on old debts. A case comment on penalty/interest relief.
Read →When a "Home" Is Really Inventory: Hansen v. The Queen and the Principal Residence Exemption for House Flippers
In Hansen v. The Queen, 2020 TCC 102, the Tax Court denied the principal residence exemption on two house sales it found were really a business — but cancelled the gross negligence penalties because the taxpayer relied on his accountant.
Read →Section 160 and the Family Home: Lessons from Vasilkioti v The King, 2024 TCC 101
In Vasilkioti v The King, 2024 TCC 101, the Tax Court vacated a roughly $72,000 section 160 derivative-liability assessment because the CRA could not prove the transferor spouse actually owed the underlying tax. A reminder that even this harsh collection rule has real limits.
Read →Valuing a Shareholder Benefit for Personal Use of a Corporate Home: Youngman v. The Queen
In Youngman v. The Queen, the Federal Court of Appeal set the test for valuing a subsection 15(1) shareholder benefit when a corporation lets a shareholder use corporate property. A look at why fair market rent is not always the answer.
Read →When Better Pie Recipes Are R&D: Canafric Inc. v. The King and the Five-Question SR&ED Test
In Canafric Inc. v. The King, 2023 TCC 108, the Tax Court applied the Northwest Hydraulic five-question test, found genuine technological uncertainty in frozen-pie development, and confirmed that contemporaneous documentation is persuasive but not mandatory for SR&ED.
Read →Judicial Review of a Denied Taxpayer Relief Request: Lessons from Telfer v. Canada (Revenue Agency), 2009 FCA 23
In Telfer v. CRA, 2009 FCA 23, the Federal Court of Appeal confirmed that a denied taxpayer relief request is reviewed for reasonableness, not re-decided on "fairness." The case is a roadmap for what a relief application and judicial review must actually establish.
Read →Unreported Income and Credibility: What Lacroix v. Canada Teaches About Demolishing the Minister's Assumptions
In Lacroix v. Canada, 2008 FCA 241, the Federal Court of Appeal confirmed how net-worth assessments shift the onus to the taxpayer — and why a non-credible explanation for unexplained wealth can sink both the appeal and a gross-negligence penalty defence.
Read →Employee or Independent Contractor? What Insurance Institute of Ontario v. M.N.R. (2020 TCC 69) Teaches About Common Intention
In Insurance Institute of Ontario v. M.N.R., 2020 TCC 69, the Tax Court applied the Connor Homes / Wiebe Door / Sagaz framework and held a part-time instructor was an independent contractor — a case comment on how intention and conduct shape CPP and EI status.
Read →
Guides
How a Tax Court appeal works
Procedure, evidence, costs, settlement, and self-representation — the practical mechanics of an appeal.
Talking to a Justice Canada Lawyer About Settlement (Self-Represented)
How settlement works when you represent yourself at the Tax Court: who the Crown lawyer is, what can and cannot be settled, how to negotiate on a principled basis, and what minutes of settlement mean.
Read →What Makes a Tax Court Appeal Succeed
Tax Court appeals are not won on clever arguments alone. Evidence, credibility, a clearly framed legal issue, and an honest assessment of the case before it is filed are what separate the appeals that succeed from the ones that should have settled.
Read →Tax Litigation vs Tax Planning: Which Do You Need?
Tax litigation and tax planning solve opposite problems at opposite ends of the timeline — one fights a position the CRA has taken, the other builds a position before the CRA looks. This guide defines each, shows when you need which, and explains how the two connect.
Read →Gross Negligence Penalties (s.163(2)): How They're Applied and How They're Challenged
A gross-negligence penalty under s.163(2) adds 50% of the understated tax. The CRA carries the burden of proof, the Venne standard is demanding, and these penalties are challenged more successfully than most taxpayers assume.
Read →The Tax Court of Canada Appeal Process
The Tax Court of Canada hears appeals from CRA reassessments. This guide explains the Informal and General Procedures, the dollar thresholds, the stages from notice of appeal to judgment, evidence, settlement, and costs.
Read →Settling a Tax Court Appeal Before Trial
Most Tax Court appeals settle before trial — but only on a principled basis. This guide explains the role of Department of Justice counsel, the Galway and CIBC principle, minutes of settlement, and when settlement is and is not possible.
Read →How to Present Evidence and Witnesses at the Tax Court (Self-Rep Guide)
A practical guide for self-represented taxpayers on getting documents into evidence, preparing and calling witnesses, the basics of examination and cross-examination, and testifying credibly yourself.
Read →After the Tax Court: Appealing to the Federal Court of Appeal
A Tax Court loss is not the end of the road. An appeal lies to the Federal Court of Appeal — but it is governed by a deadline of thirty days, a different standard of review, and a far narrower scope than the trial itself.
Read →Notice of Objection vs Tax Court Appeal: Which Path and When
Objection and Tax Court appeal are two different stages in disputing a CRA reassessment, and the order matters. Here is the sequence, the timelines, and the 90-day no-decision rule that lets you skip ahead to court.
Read →Evidence and Burden of Proof in Tax Court
In a Tax Court appeal the burden is largely on the taxpayer: the Minister's assumptions of fact are presumed correct, and your job is to demolish them. This guide explains the onus, documentary versus viva voce evidence, and why credibility decides cases.
Read →Case Study: Appealing a Confirmed Reassessment to the Tax Court of Canada
An illustrative Tax Court scenario: after a notice of objection was denied, a taxpayer appealed to the Tax Court of Canada. This composite shows how an appeal is pleaded, how discovery is used, and how most appeals resolve.
Read →Lose Twice, Win Once: Why CRA Cases Are Often Won in Tax Court
Inside the four walls of the CRA, an auditor can ignore evidence and an appeals officer can confirm a bad assessment. But the Tax Court of Canada applies the rules of evidence — which is why many cases lost at audit and objection are won at court.
Read →Tax Court Forms and Deadlines: A Checklist for Self-Represented Taxpayers
Everything a self-represented taxpayer needs to file a Tax Court appeal: the Notice of Appeal, the 90-day deadline and how extensions work, filing fees, and a printable step-by-step checklist.
Read →Costs and Cost Awards at the Tax Court of Canada
Winning a Tax Court appeal can come with a cost award — but how much depends on the tariff, whether the Court grants a lump sum, and, critically, whether a written settlement offer was made under Rule 147 and beaten at trial.
Read →What to Expect at a Tax Court Hearing
The day of a Tax Court hearing can feel intimidating. This guide walks through where the hearing happens, who is in the room, the order of events, how examination and cross-examination work, and when to expect the judgment.
Read →Common Mistakes Self-Represented Taxpayers Make at the Tax Court (and How to Avoid Them)
The recurring pitfalls that sink self-represented Tax Court appeals — missed deadlines, the wrong procedure, arguing facts as if they were law, and showing up with no evidence — and how to sidestep each one.
Read →Appealing a Net-Worth Assessment at the Tax Court
Net-worth assessments estimate income from the growth in a person's assets. At the Tax Court, the appeal is fought on the methodology — opening balances, non-taxable sources, and the unproven assumptions baked into the CRA's calculation.
Read →How to File a Notice of Appeal to the Tax Court of Canada
After the CRA confirms a reassessment, you have 90 days to appeal to the Tax Court of Canada. This step-by-step guide covers the deadline, extensions, choosing a procedure, filing methods, what goes in the notice of appeal, and the Crown's reply.
Read →Preparing Your Own Tax Court Case: Documents, Chronology, and Issues
How a self-represented taxpayer builds a Tax Court case: organizing your documents, writing a chronology, pinning down the real issues, and giving the judge exactly what is needed to rule your way.
Read →Appealing Gross Negligence Penalties at the Tax Court
The gross negligence penalty under section 163(2) is one of the few assessments where the onus shifts to the Minister. At the Tax Court, that reversal of burden is the centre of the case — and the reason these penalties so often fall.
Read →The Tax Court General Procedure, Explained
The General Procedure is the Tax Court's full-litigation track: formal pleadings, documentary discovery, oral examinations, undertakings, expert evidence, and a trial under the rules of evidence. Here is how each stage works and when it applies.
Read →The Tax Court Informal Procedure, Explained
The Informal Procedure is the Tax Court's faster, cheaper track for smaller disputes — generally $25,000 or less in federal tax per year, or $12,000 in disputed GST/HST. Here is how it works, the simplified rules, and when to choose it.
Read →How to Represent Yourself at the Tax Court of Canada (Informal Procedure)
A start-to-finish guide for self-represented taxpayers using the Tax Court's Informal Procedure: filing your appeal, the timeline, getting ready, and what happens on hearing day.
Read →GST/HST Appeals at the Tax Court of Canada
Denied input tax credits, a clawed-back new-housing rebate, or a backdated registration assessment can all be appealed to the Tax Court. The procedure differs from an income-tax appeal in ways that matter for timing, collections, and onus.
Read →
FAQ
Tax Court questions, answered
Can Barrett Tax Law help with Tax Court of Canada appeals?
Yes. Tax Court of Canada appeals are a core focus of the firm. An appeal is a fresh, independent determination of your assessment by a judge — not another round with the auditor. There are two procedures: the Informal Procedure (faster and less formal, subject to dollar limits) and the General Procedure (full rules of evidence and pleadings).
The firm handles the appeal end to end: drafting the Notice of Appeal, pleadings, document discovery and examinations, settlement discussions with Justice counsel, and the hearing itself. In most appeals the taxpayer carries the burden of disproving the Minister's assumptions, so the evidence and how it is presented are decisive. Our Tax Court resource library and the Tax Court representation page explain the process in more detail.
What is the difference between Informal and General Procedure at the Tax Court?
The Tax Court of Canada hears appeals under two procedures. The Informal Procedure is available where the federal tax and penalties in dispute for a year (excluding interest) are $25,000 or less, or the loss in dispute is $50,000 or less, among other narrowly defined cases. Pleadings are simpler, discovery is limited, costs awards are modest, and self-representation is common — though decisions carry limited precedential value.
The General Procedure applies to all other appeals, and a taxpayer can elect it regardless of the dollar amount. Pleadings, discovery, and procedure resemble Federal Court civil litigation, costs awards apply, and decisions have full precedential value.
Choosing between them is strategic. The Informal Procedure is faster and cheaper for smaller files; the General Procedure is required above the dollar limits and is often the right choice for complex legal issues, larger amounts, or where the costs and precedent benefits of full procedure matter.
What is the deadline to file a Tax Court of Canada appeal?
After the CRA confirms a reassessment (or 90 days have passed since you filed a Notice of Objection without the CRA acting on it), you have 90 days to file a Notice of Appeal with the Tax Court of Canada. As with the objection, this deadline is statutory and firm.
If the 90-day appeal deadline is missed, a late appeal may be brought under section 167 of the Tax Court of Canada Act, but the threshold is demanding and there is an outer time limit. Relying on a late application is far riskier than meeting the original deadline.
In almost all cases, you must have filed a Notice of Objection before you can appeal to the Tax Court. If a confirmation has arrived, the clock is running — treat the 90 days seriously.
What is the difference between a Notice of Objection and a Tax Court appeal?
A Notice of Objection is an administrative step within the CRA. It is a written submission telling the CRA you disagree with a reassessment, and it sends the file to a CRA Appeals officer — a more senior CRA employee than the auditor — to review independently. Many disputes are resolved, in whole or in part, at this stage.
A Tax Court appeal is the next step, taken to an independent court rather than to the CRA. It becomes available after the CRA confirms the reassessment, or after 90 days have passed without the CRA acting on the objection. You generally must have filed an objection first before you can appeal.
The two stages also differ in nature. The objection is largely a paper review by the CRA; the Tax Court hears the matter afresh on the evidence, with pleadings and procedure resembling other litigation. Building a strong objection early often improves the position if the matter later proceeds to court.
How long does a Tax Court appeal take and what does it cost?
Timelines depend on the procedure and complexity. Informal Procedure appeals typically run twelve to eighteen months. General Procedure appeals typically run eighteen to thirty-six months, and complex matters can take longer because of discovery, motions, and trial scheduling.
On cost, smaller Informal Procedure cases can sometimes be handled for fees in the low five figures. General Procedure cases vary widely with complexity and the length of trial. We provide a written estimate after reviewing the file, and we factor potential costs awards into strategy, since the General Procedure allows costs to be awarded.
A consultation lets us assess your file and give you a realistic sense of both the likely timeline and the fee structure before you commit.
What is the dollar limit for the Tax Court's Informal Procedure?
The Informal Procedure is generally available where the federal tax and penalties in dispute for each year (excluding interest) are $25,000 or less, where a disputed loss for a year is $50,000 or less, or where a GST/HST amount in dispute is $12,000 or less. An appeal that concerns only interest can also proceed informally.
The limits are applied year by year, so a multi-year reassessment can still qualify provided the federal tax in dispute for each individual year stays within the threshold. If you are over the limit, you can still elect the Informal Procedure by giving up the amount above the ceiling, or proceed under the General Procedure instead.
Can I appeal a GST/HST assessment to the Tax Court of Canada?
Yes. A GST/HST assessment under the Excise Tax Act is appealed to the same Tax Court of Canada that hears income-tax appeals. You first file a Notice of Objection within ninety days of the assessment. If the CRA confirms the assessment, or does not decide the objection within one hundred and eighty days, you can take the matter to the Tax Court. Note that the wait before you can go to Court is 180 days for GST/HST, compared with 90 days for income tax.
What happens if I win or lose at the Tax Court of Canada?
If you win, the Court refers the reassessment back to the Minister for reconsideration and reassessment in accordance with the Court's reasons. The Minister then issues a corrected reassessment, and you may receive a refund of any disputed amounts already paid, together with refund interest.
If you lose, the reassessment stands and costs may be awarded against you, particularly in the General Procedure. A further appeal to the Federal Court of Appeal is available, generally within 30 days, but it is limited to questions of law and palpable error rather than a fresh hearing of the facts.
Because the Tax Court hears the matter afresh on the evidence, the strength of the evidentiary record built during the audit and objection stages often shapes the outcome. We assess the realistic odds candidly before and during litigation.
How long do I have to appeal to the Tax Court of Canada?
Once the CRA confirms a reassessment or reassesses following your objection, you have 90 days from the date on that notice to file a notice of appeal with the Tax Court of Canada. The 90 days runs from the date printed on the notice, not the date you received it.
You can also appeal without waiting for a CRA decision: if you filed a valid objection and the CRA has not decided it within 90 days (180 days for GST/HST), you may appeal directly. If you miss the 90-day deadline after a confirmation, you can apply to the Court for an extension of time under section 167 of the Tax Court of Canada Act, generally within one further year, but the threshold for relief is high.
Does objecting to a GST/HST assessment stop the CRA from collecting it?
No. GST/HST is a trust amount — tax you collected from customers on the government's behalf — and the collections pause that applies to disputed income-tax assessments does not apply to it. The CRA can collect a disputed GST/HST assessment while your objection or appeal is still alive. This is one reason registrants with a clearly wrong GST/HST assessment sometimes go straight to the Tax Court once the 180-day waiting period has passed, to compress the timeline.
Do I need a lawyer to appeal to the Tax Court?
It depends on the procedure. In the Informal Procedure you may represent yourself or be represented by an agent who is not a lawyer, including an accountant, and a corporation may have an officer appear for it. In the General Procedure an individual may self-represent, but a corporation generally must be represented by counsel.
The Informal Procedure is designed to be navigable without a lawyer, but the burden of proof still rests on the taxpayer and the assumptions of fact still have to be addressed. For larger or legally complex files, the framing of the appeal shapes everything that follows, which is why representation is often valuable even where it is not required.
Who has to prove a gross negligence penalty at the Tax Court — me or the CRA?
The CRA does. In almost every tax appeal the taxpayer carries the burden of proving the assessment wrong, but the gross negligence penalty under subsection 163(2) is the exception. Subsection 163(3) places the onus on the Minister to establish the facts justifying the penalty. The CRA must prove that your conduct met the high threshold the provision demands — a high degree of negligence tantamount to intentional acting — not merely that there was an error in your return.
Does filing an objection stop CRA collections action?
It depends on the type of debt. Objecting to an income tax assessment — personal or corporate — applies a "stall code" in the CRA's system: collections action that has started will stop, and action that has not yet begun will not start, while the amount is in dispute.
Trust amounts are different. Objecting to a GST/HST or source-deduction assessment does not stop collections, so a trust debt remains fully collectible even while it is being disputed. For that reason, a clearly incorrect GST/HST assessment can take a year or two to correct while the disputed amount is being collected — one reason taxpayers sometimes choose to skip the appeals officer and go straight to the Tax Court of Canada on trust-debt files.
Who has the burden of proof in a Tax Court appeal?
In most Tax Court appeals the burden is on the taxpayer. CRA assessments are presumed correct, and the Minister's assumptions of fact — set out in the Crown's reply — are taken as true unless the taxpayer rebuts them. The taxpayer's task is to "demolish" those assumptions with credible evidence on a balance of probabilities.
There are exceptions. The most important is gross-negligence penalties under subsection 163(2), where the burden shifts to the Crown to justify the penalty. But on the substantive reassessment, the appellant generally carries the onus, which is why identifying and addressing each assumption of fact is the foundation of any appeal.
Can I lose on the tax but still defeat the gross negligence penalty?
Yes, and it happens often. The underlying tax and the penalty are decided on different burdens. On the tax, you must prove the assessment wrong; on the penalty, the Minister must prove gross negligence. Even where some additional tax survives, the Crown may be unable to show your omission was anything more than an ordinary mistake — in which case the fifty per cent penalty is removed. Given the size of the penalty, that split outcome is frequently the most valuable result in the appeal.
Can I skip the CRA appeals officer and go straight to Tax Court?
Yes, after a waiting period. For income tax matters, once 90 days have passed since you filed your notice of objection, you can appeal directly to the Tax Court of Canada without waiting for an appeals officer to decide. For GST/HST matters, the waiting period is 180 days from the filing of the objection.
Skipping ahead can save considerable time, and it is especially useful for a GST/HST assessment that is incorrect but remains collectible while in dispute. The Tax Court also applies the rules of evidence, which the CRA can sidestep at the audit and objection stages — so a well-documented case that stalled inside the agency often fares better before a judge or with Department of Justice counsel.
What are the Minister's assumptions of fact?
When the CRA reassesses, it relies on factual conclusions — that a deposit was income, that an expense was personal, that a transaction lacked substance. In a Tax Court appeal, the Crown sets those conclusions out in its reply as the Minister's assumptions of fact, and they are presumed true unless the taxpayer rebuts them.
The assumptions effectively define what the taxpayer has to disprove, which is why the reply is the most important document the Crown files. You cannot rebut an assumption you have not identified, so the first step in building an appeal is to read the assumptions one by one and assemble the evidence that demolishes each.
How do I challenge a net-worth assessment at the Tax Court?
A net-worth assessment estimates your income from the growth in your wealth plus your living expenses, treating the unexplained increase as unreported income. The appeal attacks the methodology: showing the auditor understated your opening net worth, identifying non-taxable sources (gifts, loans, inheritances, sales of personal property, accumulated savings) that explain apparent increases, correcting misvalued or double-counted assets, and challenging inflated personal-expenditure estimates. Every dollar traced to a non-taxable source comes out of the assessment.
Will my Tax Court appeal go to trial, or can it settle?
Most Tax Court appeals settle before trial, frequently after discovery once both sides can see the strengths and weaknesses of the case. The Crown is represented by Department of Justice counsel, who assess each file for its litigation risk and are often open to a reasonable resolution where an assumption is weak.
Settlement in tax litigation must rest on a principled basis — a result the law and the facts can actually support — rather than simply splitting the difference. That makes issue-by-issue settlements common: the Crown concedes the issues the evidence supports and maintains the ones it does not. A pure question of law, where there is no factual middle ground, is less likely to settle and may have to be decided at a hearing.
If I win at the Tax Court, will the CRA pay my legal costs?
Possibly some of them. Costs at the Tax Court are discretionary and generally follow the event, so a successful taxpayer is presumptively entitled to costs. Historically that meant a modest tariff amount, but the Court now frequently awards a lump sum — a percentage of the legal fees you actually paid, often a quarter to a half. A written settlement offer under Rule 147 that the CRA rejects, where you then do as well or better at trial, can entitle you to substantially enhanced costs from the date of the offer.
What is an examination for discovery in a Tax Court appeal?
In the General Procedure, after the pleadings close, each party may orally examine one representative of the other side, under oath and before a court reporter, in advance of trial. This is the examination for discovery. Its purpose is to learn the other side's case, obtain admissions, and test the strength of the assumptions before any hearing.
Discovery is where many appeals are effectively won or lost, because it exposes the evidentiary foundation of each side's position. Questions that cannot be answered in the room are often the subject of undertakings — commitments to provide a document or answer afterward. There is no oral examination for discovery in the Informal Procedure.
Can I appeal a Tax Court decision, and how long do I have?
Yes. A Tax Court general-procedure judgment can be appealed to the Federal Court of Appeal, generally within thirty days of the judgment (July and August are not counted in the computation). The deadline is strict; missing it requires an application to extend time, which is not assured. Because the window is short, the decision whether to appeal has to be made quickly, while the trial is still fresh.
What happens if I win my Tax Court appeal?
If you succeed, the Court rarely fixes a final tax figure itself. Most commonly, when a taxpayer wins in whole or in part, the Court refers the reassessment back to the Minister for reconsideration and reassessment in accordance with the Court's reasons. The CRA then issues a corrected reassessment reflecting the judgment.
You may receive a refund of disputed amounts already paid, together with refund interest, and in the General Procedure a successful party can be awarded a portion of their costs. If you lose, the reassessment stands, costs may be awarded against you in the General Procedure, and a further appeal to the Federal Court of Appeal is available on a question of law or a palpable and overriding error of fact.
What does the Federal Court of Appeal actually review — can I re-argue the facts?
No — it is not a retrial. The Federal Court of Appeal reviews the Tax Court's decision for error under a standard of review that depends on the type of question. Questions of law (how the Income Tax Act was interpreted, the legal test applied) are reviewed for correctness. Questions of fact are reviewed only for "palpable and overriding error," a demanding standard that gives deference to the trial judge who heard the witnesses. An appeal that is really a complaint about how the evidence was weighed usually fails; an appeal that identifies a genuine legal error has a real prospect.
Can I represent myself at the Tax Court of Canada?
Yes. The Tax Court of Canada was designed so that taxpayers can appeal without a lawyer, and many do — particularly under the Informal Procedure, which is the simpler, lower-cost track. The judge controls the process and will generally help a self-represented taxpayer understand what is being asked. Preparation matters more than legal training: organized documents, a clear chronology, and a focus on the specific issues go a long way.
For larger or legally complex disputes, or where significant penalties are at stake, many taxpayers choose to consult or retain a tax lawyer. But self-representation is a realistic option, especially under the Informal Procedure.
What is the difference between the Informal and General Procedure at the Tax Court?
The Informal Procedure is the simpler, faster track built for self-represented taxpayers: no filing fee, relaxed evidence rules, and a hearing that is usually a few hours to a day. You can elect it when the federal tax and penalties in dispute are $25,000 or less per year (or $50,000 or less of GST/HST). If your dispute is larger, you can still choose the Informal Procedure by waiving the excess.
The General Procedure is more formal — it has prescribed pleadings, examinations for discovery, stricter rules of evidence, a filing fee, and the possibility of costs awards. It is used for larger disputes. You elect the Informal Procedure right in your Notice of Appeal.
Do I have to file a Notice of Objection before appealing to the Tax Court?
For most income tax and GST/HST disputes, yes. The Notice of Objection filed with the CRA is the mandatory first step, and it preserves your right to appeal. You can appeal to the Tax Court only after the CRA confirms or reassesses in response to your objection, or after 90 days have passed since you filed the objection with no decision.
Skipping the objection stage is a common reason appeals get blocked, so if you have not objected yet, start there.
How long does a Tax Court appeal take?
Informal Procedure files often resolve in 6–18 months. General Procedure can run 18–36 months from Notice of Appeal to judgment, depending on complexity, discovery, and whether the case settles or proceeds to trial.
What goes in a Notice of Appeal to the Tax Court?
Under the Informal Procedure there is no mandatory form — a clear letter is enough, and the court publishes a model. A good Notice of Appeal identifies the tax year(s) and the CRA notice you are appealing by date, states the relevant facts, lists the issues, explains why you say the assessment is wrong, states the exact relief you want, and elects the Informal Procedure if you qualify. Include an address for service in Canada.
Keep it factual and organized; you do not need legal language. The General Procedure uses a more formal prescribed form.
Do I have to attend the trial?
If you are the appellant and there are factual issues in dispute, yes — you will usually be a key witness. Your counsel will prepare you. For purely legal arguments, attendance is optional in most cases.
What is the deadline to appeal to the Tax Court, and what if I miss it?
You generally have 90 days to file your Notice of Appeal, measured from the date on the CRA's notice of confirmation or reassessment. The clock runs from the CRA's date, not the day you received the letter, so file early.
If you miss the 90 days, you can apply for an extension of time — but only within one year after the deadline expired (15 months total), and only if you intended to appeal within the original period, have reasonable grounds, and applied as soon as you could. Treat the extension as a safety net, and act quickly if you need it.
How do I get my receipts and documents accepted as evidence?
A document only becomes evidence once it is introduced at the hearing. Bring copies for the judge, the Crown, and yourself; introduce each key document through a witness who can speak to it (usually you), and ask the judge to mark it as an exhibit. Then tie each document to the specific fact it proves. Under the Informal Procedure the judge is not bound by the strict rules of evidence, so this is more relaxed than in a regular courtroom.
Organize everything in a tabbed, numbered binder, and consider agreeing a joint book of documents with the Crown so exhibits go in by consent. If originals are missing, you can prove the same facts with bank statements, vendor copies, or a consistent reconstruction.
Can I settle my Tax Court appeal with the government lawyer?
Yes — most appeals settle rather than going to a decision. After you file, a Department of Justice (Crown) lawyer is assigned to your file and may discuss resolution. The key rule is that a settlement must be "principled": it has to reflect a result the facts and the law actually support. The Crown cannot simply split the difference to close a file.
The way to move a settlement is to show, with documents, why a particular number is the legally correct one — issue by issue. When you agree, the terms are written into Minutes of Settlement, which are binding once signed.
What are Minutes of Settlement and should I review them before signing?
Minutes of Settlement are the written, binding record of a deal you reach with the Crown to resolve some or all of your Tax Court appeal. Before signing, read every line: confirm the dollar amounts, tax years, and issues match what you agreed, check that each issue is addressed (settled, conceded, or left for hearing), and understand the costs treatment (usually each side bears its own). Based on the Minutes, the court issues a judgment and the CRA reassesses accordingly.
Because they are binding once signed, it is reasonable to ask the Crown lawyer to explain any clause, or to take time to review. If the amount is significant or the issues are complex, a short consultation with a tax lawyer before signing can be worthwhile.
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