Key Takeaways
- The DTC is based on the effects of an impairment on everyday functioning, not simply its medical diagnosis.
- The 2026 federal disability amount is $10,341, which can reduce federal income tax by up to $1,448.
- An eligible person who cannot use the full credit may transfer the unused amount to a qualifying supporting family member.
What Is the Disability Tax Credit in Canada?
The Disability Tax Credit (DTC) is a federal non-refundable tax credit that helps eligible Canadians with severe and prolonged physical or mental impairments, or their supporting family members, reduce income tax.
For 2026, the federal disability amount is $10,341. At the 14% lowest federal tax rate, this can provide a tax reduction of up to approximately $1,448. However, the $10,341 is not a cash payment or guaranteed refund. The actual tax savings depend on the amount of federal tax payable and other applicable tax rules.
The DTC can also help eligible individuals access other programs, including the Registered Disability Savings Plan, Canada Disability Benefit and Canada Workers Benefit disability supplement.
Who Qualifies for the Disability Tax Credit?
Eligibility depends on how an impairment affects everyday activities. A medical diagnosis alone does not guarantee approval. The CRA considers the severity, duration and practical effects of the impairment, using information certified by an eligible medical practitioner.
A person may qualify if they have a marked restriction in at least one basic activity of daily living, significant limitations in two or more categories whose combined effect is equivalent to a marked restriction, or qualifying life-sustaining therapy.
A marked restriction generally means the person cannot perform an activity, or takes at least three times longer than someone of similar age without the impairment, even with appropriate medication, therapy or devices. The restriction must generally exist at least 90% of the time and last, or be expected to last, continuously for at least 12 months.
Which Conditions and Activities Can Qualify?
The CRA evaluates limitations across several categories rather than maintaining a simple list of automatically qualifying diagnoses.
These categories include walking, mental functions necessary for everyday life, dressing, feeding, eliminating, hearing, speaking and vision. Life-sustaining therapy is assessed separately.
For example, someone with a condition affecting mobility may qualify if walking takes at least three times longer than it does for a comparable person and the restriction meets the duration and frequency requirements.
A person who does not meet the marked-restriction test in one category may still qualify under the cumulative effect of significant limitations in two or more categories.
Life-sustaining therapy may also qualify when it supports a vital function, is needed at least twice a week and takes an average of at least 14 hours per week away from normal everyday activities. People with Type 1 diabetes are deemed to meet the DTC criteria under the life-sustaining therapy category.
How Much Can You Claim in 2026?
For the 2026 tax year, the federal disability amount is $10,341. This can reduce federal income tax by up to approximately $1,448.
For comparison, the CRA's published 2025 figures are:
| Disability amount | 2025 tax year |
|---|---|
| Federal disability amount | $10,138 |
| Additional supplement for eligible individuals under 18 | Up to $5,914 |
| Combined amount for an eligible child | Up to $16,052 |
The child supplement is subject to specific reduction rules, including certain attendant-care and child-care expenses. Provincial and territorial disability amounts may provide additional tax relief, but their values and calculations differ.
The amount shown on a tax return is a credit base, not the amount of money deposited into a bank account. Someone with little or no federal tax payable may not receive the full value as a refund.
How Do You Apply Using Form T2201?
To apply, the person with the impairment or their legal representative completes Part A of Form T2201, while an eligible medical practitioner completes the medical certification in Part B.
The CRA accepts applications through its digital application process or by mail using the current paper form. The medical practitioner provides information about the effects of the impairment, including the relevant activity limitations, frequency and expected duration.
The CRA reviews the application and decides whether the eligibility criteria are met. A practitioner's signature supports the application but does not automatically guarantee approval.
As of September 8, 2026, older versions of Form T2201 issued before 2023 are no longer accepted. Applicants using paper forms should download the latest version before submitting their documents.
Can You Transfer an Unused Disability Tax Credit?
Yes. If the person approved for the DTC does not need the full disability amount to reduce their own income tax, some or all of the unused amount may be transferred to an eligible supporting family member.
A supporting family member must provide at least one basic necessity of life, such as food, shelter or clothing. Qualifying relatives can include a spouse or common-law partner, parent, grandparent, child, grandchild, sibling, aunt, uncle, niece or nephew, subject to CRA rules.
The person claiming the transferred amount must meet the supporting-family-member requirements. The credit cannot simply be transferred to any relative because they share the same household.
Can You Claim the Disability Tax Credit for Previous Years?
An approved applicant may be able to claim the disability amount for previous eligible tax years, potentially going back up to 10 years. The CRA must determine that the person met the eligibility requirements during those years.
Applicants can request adjustments to earlier returns through their CRA account or by written request. If the applicant asked the CRA to adjust previous returns in the original application, the CRA may reassess the applicable years automatically.
This can be important for people whose impairments began several years before they applied. However, retroactive eligibility is not automatic and depends on the medical information and CRA approval for each relevant period.
TwikUp's Perspective
Managing a disability-related tax situation can involve more than claiming available credits. Some Canadians with disabilities also work independently, operate small businesses or earn income through self-employment. In these situations, understanding tax obligations becomes an important part of financial planning.
For individuals running a business, GST/HST registration is another responsibility worth understanding. If taxable sales cross the applicable small-supplier threshold, registration and tax collection requirements may apply. Our guide to GST/HST registration in Canada and when a small business must start charging tax explains the registration threshold, timing rules and responsibilities for small businesses.
At TwikUp, we believe financial planning should consider the complete picture, including disability-related tax relief, self-employment income and business tax obligations. Keeping personal and business records organized can make tax filing easier and help eligible individuals avoid overlooking important responsibilities or available support.
Disclaimer
This article is for general educational purposes and does not constitute personal tax, medical or financial advice. DTC eligibility is determined by the CRA based on the applicable rules and medical certification. Confirm current amounts and requirements with the CRA or a qualified tax professional.