Tax Court Appeal Deadline and Cost Calculator
The objection was confirmed, or it has sat at Appeals for months. Work out your ninety-day deadline, when you can appeal without waiting, whether the informal procedure applies, and what it costs to proceed.
days remaining
—
—
—
—
Your Dates
| Milestone | Rule | Your Date |
|---|
Informal or General Procedure
| Test | Limit | You |
|---|
Cost and What It Buys
| Item | Basis | Amount |
|---|
Paying While You Appeal
| Item | Detail |
|---|
Points That Decide This
What to Do Next
—
Disclaimer: We are Chartered Professional Accountants and not lawyers. Nothing on this page is legal advice, and an appeal to the Tax Court of Canada is litigation. A corporation cannot generally represent itself in the general procedure and must be represented by counsel, while in the informal procedure a taxpayer may appear in person or be represented by an agent. Anyone contemplating an appeal should obtain legal advice, and this page is intended to help identify deadlines and scope before that conversation. Under subsection 169(1) of the Income Tax Act, a taxpayer may appeal to the Tax Court of Canada after the Minister has confirmed the assessment or reassessed, and no appeal may be instituted after 90 days from the day the notice of confirmation or reassessment was sent. Where the Minister has not confirmed or reassessed within 90 days after the notice of objection was served, the taxpayer may appeal without waiting further. An application to extend the time to appeal may be made under section 167, and must generally be made within one year after the expiry of the 90-day period, subject to the conditions in that section. The informal procedure is available where the aggregate of federal tax and penalties in issue for each taxation year does not exceed $25,000, or where the amount of a loss in issue does not exceed $50,000, or where interest alone is in dispute, and a taxpayer may also elect the informal procedure by limiting the amount in issue. Costs awards are limited in the informal procedure and decisions are not treated as precedent. Under subsection 225.1(7) the Minister may collect 50% of the disputed amount from a large corporation, being one whose taxable capital employed in Canada exceeds the threshold in section 225.1, notwithstanding an outstanding objection or appeal. Interest continues to accrue on any amount ultimately upheld throughout the objection and appeal process. Filing fees are set by the Tax Court of Canada Rules and vary with the amount in issue and the procedure; those stated here are indicative and should be confirmed. This page is general information, not legal or tax advice.
The Ninety Days Runs Both Ways
Most people know the deadline. Fewer know the right that sits alongside it, and it is the more useful of the two.
Once the Minister confirms or reassesses, you have ninety days to appeal to the Tax Court. That is the deadline and it is firm. But where ninety days have passed since you served your notice of objection and nothing has come back, you may appeal without waiting any longer.
| Situation | What the 90 Days Means |
|---|---|
| Confirmation or reassessment received | 90 days to appeal, then it closes |
| Objection filed, nothing back after 90 days | You may appeal now, no further wait |
Appeals can sit for a very long time. A taxpayer whose objection has been unanswered for a year is not stuck waiting. They have had the right to appeal since day ninety-one, and exercising it is sometimes what finally moves the file.
The Informal Procedure Changes Everything
Where the federal tax and penalties in issue for each year do not exceed twenty-five thousand dollars, or a loss in issue does not exceed fifty thousand, the informal procedure is available.
It is faster, far cheaper, and much less formal. Strict rules of evidence do not apply in the same way, the hearing is quicker, and cost exposure is limited.
| Informal | General | |
|---|---|---|
| Limit per year | $25,000 tax and penalties | No limit |
| Loss determinations | $50,000 | No limit |
| Corporation may self-represent | Generally yes, or by agent | No, counsel required |
| Cost | Much lower | Substantial |
| Precedent value | None | Yes |
The test is per year, not in total. Two years at twenty thousand each qualify for the informal procedure. One year at thirty thousand does not, even where the total is smaller. That distinction decides the cost of the whole exercise and is worth checking carefully.
You Can Choose to Limit the Amount
Where a year exceeds the threshold, a taxpayer may elect the informal procedure by limiting the amount in issue to the limit and abandoning the rest.
On a thirty thousand dollar dispute, giving up five thousand to access a procedure that costs a fraction of the general one is frequently the better arithmetic. It feels like losing and it usually is not.
A Corporation Needs Counsel in the General Procedure
This is the point that most changes the economics. In the general procedure a corporation cannot represent itself and must be represented by a lawyer.
We are accountants. We can help you identify the deadlines, assess whether the amounts qualify for the informal procedure, prepare the underlying figures and work alongside counsel. We cannot conduct the appeal, and any page suggesting otherwise would be misleading you.
Get the deadline diarised first and the representation decision second. The ninety days does not pause while you decide who to hire, and an extension application is a worse position than a timely appeal.
The Extension Application Exists but Is Not a Backstop
Where the ninety days has passed, an application to extend the time to appeal may be made, generally within one year after the ninety-day period expires. It has conditions and it is not automatic.
Treat it as a rescue, not a plan. A taxpayer who missed the deadline through inattention is in a materially weaker position than one who filed on time, and the application itself costs money to make.
Interest Runs the Whole Time
Nothing about objecting or appealing stops interest accruing on an amount ultimately upheld. On a multi-year dispute that runs for two or three years, the interest can become a meaningful share of the total.
That is worth weighing honestly. Paying the assessment to stop the interest, while continuing the appeal, is an option some taxpayers should take. If you win, the money comes back with refund interest.
Large Corporations Pay Half Regardless
Where a corporation is a large corporation under the collection rules, the Minister may collect fifty percent of the disputed amount notwithstanding an outstanding objection or appeal.
Smaller corporations generally get collection held while a dispute is live. Crossing the taxable capital threshold changes that, and it is a cash flow fact rather than a legal argument.
Is It Worth Appealing at All
- Small amount, informal procedure: often yes, because the cost is proportionate
- Large amount, strong documents: yes, with counsel
- Large amount, weak position: consider settlement discussions instead
- Recurring issue affecting future years: the precedent value may justify more cost
- Amount smaller than the legal fees: rarely worth the general procedure
We prepare the numbers and work with your counsel. Our corporate tax appeals service covers the objection stage, the analysis and the support through an appeal.
What This Calculator Does Not Cover
- The merits of your case, which needs legal advice
- Settlement negotiations with Justice counsel
- Appeals beyond the Tax Court to the Federal Court of Appeal
- GST/HST appeals, which run on their own provisions
- Taxpayer relief applications, which are a separate route
- Provincial tax disputes administered separately
Frequently Asked Questions
Common questions on appealing to the Tax Court.
Related Calculators and Guides
More tools for disputed assessments.
Diarise the Deadline Today
Send us the confirmation letter and the assessments. We will map the deadline, tell you whether the informal procedure applies, prepare the numbers, and work with counsel where the general procedure is needed.