DTC Claims & Appeals

Disability Tax Credit Denied? How to Object and Appeal

The Disability Tax Credit (DTC) is a gateway to tax savings and other benefits, including the Registered Disability Savings Plan and the Child Disability Benefit. Many eligible people are refused because of how the application was completed. We help clients challenge DTC denials through objections and Tax Court appeals.

DTC application denied?

You generally have 90 days from the date on the CRA's notice of determination or notice of assessment to file a Notice of Objection. Keep the CRA's letter and the copy of Form T2201 that was submitted.

Who Qualifies for the Disability Tax Credit

To qualify, a person must have a severe and prolonged impairment in physical or mental functions. Prolonged means the impairment has lasted, or is expected to last, at least 12 continuous months. A medical practitioner must certify Form T2201, the Disability Tax Credit Certificate, and the CRA decides eligibility based on that certificate and any follow-up information.

Eligibility can be based on a marked restriction in one basic activity of daily living, such as walking, speaking, hearing, dressing, feeding, eliminating, or mental functions necessary for everyday life; on significant restrictions in two or more activities that together equal a marked restriction; on vision; or on the need for life-sustaining therapy, such as insulin therapy, for at least 14 hours per week.

Why Eligible People Are Denied

A marked restriction means being unable, or taking an inordinate amount of time, to perform the activity all or substantially all of the time, even with therapy and appropriate devices. Many denials happen because the medical practitioner described the diagnosis rather than the functional effect on daily activities, or did not clearly address how often and how long tasks take.

The CRA often sends follow-up questionnaires to medical practitioners. Brief or inconsistent answers can sink an otherwise valid claim. Mental function impairments, such as those associated with autism, ADHD, depression, anxiety or brain injury, are frequently misunderstood and are a common source of denials and appeals.

Benefits That Depend on DTC Approval

Approval does more than reduce income tax. It can unlock the disability supplement for children under 18, the Child Disability Benefit for families receiving the Canada Child Benefit, eligibility to open a Registered Disability Savings Plan with access to government grants and bonds, and the ability to transfer unused credits to a supporting spouse, parent or other family member.

Once approved, you can ask the CRA to reassess prior years in which the impairment existed. Requests for refunds for earlier years are generally limited to the previous 10 calendar years, so delays can permanently cost money.

  • Non-refundable disability amount on the tax return
  • Supplement for persons under 18
  • Child Disability Benefit through the Canada Child Benefit
  • Registered Disability Savings Plan eligibility, grants and bonds
  • Transfer of unused credits to supporting family members
  • Retroactive refunds for prior years

Objection and Tax Court Appeal

A Notice of Objection lets an appeals officer independent of the original decision reconsider your claim. Strong objections include detailed medical evidence that addresses the legal test, statements from people who see your daily functioning, and, where helpful, a new or supplementary T2201.

If the objection fails, you can appeal to the Tax Court of Canada. Most DTC appeals proceed under the informal procedure, which is less formal and faster than the general procedure. The court hears evidence from you and witnesses about daily functioning, and the judge decides whether the legal test is met. Courts have often interpreted the DTC provisions with compassion, in light of their purpose.

Working With Your Medical Practitioner

Doctors, nurse practitioners and other medical practitioners who complete Form T2201 are often busy, and may not be familiar with how the CRA applies the legal test. Giving them a clear summary of your daily limitations, how long tasks take, and how often you need help can result in a more accurate certificate. Asking the practitioner to describe functional effects rather than only the diagnosis is especially important.

How We Handle Your Matter

  1. 1

    Review the denial

    We review the CRA's decision, the T2201 and any questionnaire responses to identify why the claim failed.

  2. 2

    Gather functional evidence

    We work with your medical practitioners to describe the effect of the impairment against the legal test.

  3. 3

    File the objection

    We prepare a detailed Notice of Objection with supporting evidence within the deadline.

  4. 4

    Appeal to the Tax Court

    If needed, we represent you before the Tax Court of Canada, preparing you and your witnesses.

  5. 5

    Recover prior years

    Once approved, we help you request adjustments for eligible prior years.

Frequently Asked Questions

Should I reapply or object after a DTC denial?

It depends on the reason for denial and whether new information is available. An objection preserves your right to appeal to the Tax Court; a new application may be appropriate where the original T2201 was incomplete. We review your file and recommend the best route.

How far back can I claim the DTC?

If the impairment existed in earlier years, you can request adjustments to prior returns, generally for the previous 10 calendar years.

Does a diagnosis guarantee approval?

No. The test is based on the effect of the impairment on daily functioning, not the diagnosis itself. Two people with the same diagnosis may have different outcomes.

Do I need a lawyer for a DTC appeal?

You can represent yourself in the informal procedure, but appeals involve legal tests, evidence and cross-examination. Representation often improves the presentation of the medical and functional evidence.

Can a parent claim the DTC for a child?

Yes. A child with a severe and prolonged impairment can qualify, and the unused credit, including the supplement for persons under 18, can be transferred to a supporting parent. Families receiving the Canada Child Benefit may also receive the Child Disability Benefit.

Does the CRA review DTC approvals later?

Approvals often have an end date set based on the medical practitioner's assessment, and the CRA can ask for an updated Form T2201. Keep your medical records current so renewal or review is straightforward.

Speak With a Tax Lawyer Before You Respond to the CRA

Tax deadlines are strict and what you say to the CRA can be used in an assessment. A confidential consultation helps you understand your options before you act.

This page provides general information about Canadian tax law as of October 2026. It is not legal advice, and reading it does not create a lawyer-client relationship. Tax rules change and every situation is different, so please speak with a lawyer about your circumstances.

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