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Tax Court Costs: Can You Be Ordered to Pay in Canada?

Understand when the Tax Court of Canada awards costs, how the informal and general procedures differ, and what settlement offers can do to costs.

Tax4 min readTSLBy the Treadstone Law Team · CanadaUpdated November 13, 2026
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Key takeaways
  • In the general procedure, the Court can order either party to pay some of the other's legal costs.
  • In the informal procedure, CRA says you will not pay the Minister's costs unless you unduly delay the appeal.
  • A written settlement offer can change the costs outcome in the general procedure.

Fear of paying the CRA's legal bill stops some people from appealing. The answer depends heavily on which Tax Court procedure your case uses.

A costs award is an order that one side pay part of the other side's legal expenses. This article explains when that can happen, what the Court looks at, and how the informal procedure is different. It does not set out dollar amounts, because those depend on the case and the Court's discretion.

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

What a costs award is

In the general procedure, the Tax Court of Canada can order either party to pay some of the other party's legal costs. That is different from the tax in dispute, and it covers only some of those costs, not necessarily all of them. When it decides, the Court considers factors including the result, the amounts in issue, the importance and complexity of the issues, written settlement offers and conduct that lengthened the proceeding.

Whether an order is made, and how much, turns on the procedure and the Court's discretion. How much you might expect in costs depends on your situation, so it is worth confirming with a lawyer to get a realistic estimate for your case.

Costs in the informal 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. It also applies where the only subject-matter is interest assessed under the Income Tax Act.

The costs risk is limited here. The Court may award costs to the appellant if the judgment reduces the aggregate of amounts in issue. The CRA says the taxpayer will not pay the Minister's costs unless the taxpayer unduly delays the appeal.

If the Minister appeals an informal procedure judgment, the taxpayer's reasonable and proper costs of the appeal are paid by the Crown.

Costs in the general procedure

In the general procedure, the Court can order either party to pay some of the other party's legal costs. That means a taxpayer who loses can be ordered to pay part of the Crown's costs.

Under Rule 147(3), the Court considers factors including the result, the amounts in issue, the importance and complexity of the issues, written settlement offers and conduct that lengthened the proceeding.

If your 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. That election keeps you in the informal procedure, but 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. For an interest-only informal appeal, the Court must move the case to the general procedure on the Attorney General's application if the interest in issue exceeds $25,000, and interest that accrues after the notice of assessment is not counted toward that amount.

Settlement offers

A written offer of settlement can increase costs recovery to substantial indemnity costs, which is 80% of solicitor-and-client costs, after the offer date if the judgment is as favourable. The offer must be served at least 30 days after pleadings close and at least 90 days before the hearing, and it must not be withdrawn.

Offers matter in the informal procedure too, since the Court may consider written settlement offers on costs there. A filed appeal can also be settled outright: with your written consent, the Minister may reassess at any time to dispose of an appeal.

What to do next

Frequently asked questions

Can I be ordered to pay the CRA's legal costs if I lose?

In the general procedure, yes. The Court can order either party to pay some of the other party's legal costs. In the informal procedure, the CRA says you will not pay the Minister's costs unless you unduly delay the appeal.

How much are costs usually?

The amount is not fixed. The Court looks at factors such as the result, the amounts in issue, the importance and complexity of the issues and any settlement offers. A lawyer can give you an estimate based on your facts.

Do settlement offers really matter?

They can. A written offer can raise recovery to 80% of solicitor-and-client costs if the judgment is as favourable and the timing rules are met. Timing matters: it must be served at least 30 days after pleadings close and at least 90 days before the hearing.

What if the Minister appeals after I win informally?

If the Minister appeals an informal procedure judgment, your reasonable and proper costs of the appeal are paid by the Crown.

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.

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