Disability Tax Credit — Over $1,500/Year and a Key to Other Credits
What you will learn: Whether you or a family member qualifies for the Disability Tax Credit, how to apply using Form T2201, and the significant benefits the DTC unlocks beyond the credit itself.
The Disability Tax Credit (DTC) is worth approximately $1,540/year in reduced federal tax (2026 rates, with additional supplements for seniors and those supporting eligible children). But its real value is what it unlocks: the Registered Disability Savings Plan (RDSP), the Home Accessibility Tax Credit without age requirement, the Disability Supplement to the Working Income Tax Benefit, and several provincial credits. Many eligible Canadians have never applied because they assume their condition does not qualify.
Leonard, 68, from Barrie, Ontario. Leonard had been living with Type 2 diabetes for over a decade. His condition required a significant amount of time each day managing his insulin therapy — preparing doses, monitoring blood glucose, adjusting based on activity and meals. Leonard had never claimed the DTC because "my diabetes is manageable — I assumed you had to be severely disabled."
A volunteer at a free tax clinic recognized that Leonard's insulin therapy might qualify under the "life-sustaining therapy" category. They helped him complete Form T2201, which his endocrinologist signed. CRA approved it retroactively for the past 10 years.
Leonard received an adjustment for 10 years of missed DTC credits, plus the Home Accessibility Tax Credit for modifications he had made for his neuropathy. The total adjustment: over $14,000.
"I thought the DTC was for people in wheelchairs," Leonard said. "I had no idea it applied to me."
Who Qualifies
You may qualify for the DTC if you have a severe and prolonged impairment (lasting at least 12 consecutive months) that markedly restricts your ability to perform one or more of these basic activities of daily living — even when you are using appropriate therapy, medication, and assistive devices:
Physical functions
- Vision — even with corrective lenses
- Hearing — even with a hearing aid
- Speaking — being understood in a quiet setting
- Walking — including the time required
- Eliminating — bowel or bladder functions
- Feeding — preparing food and eating
- Dressing — putting on and removing clothing
Mental functions & other
- Mental functions — memory, problem-solving, judgement, attention
- Life-sustaining therapy — if you require at least 14 hours/week of therapy to sustain a vital function (e.g. dialysis, insulin therapy for Type 1 diabetes)
- Cumulative effect — if you have multiple impairments that together take an excessive amount of time
The DTC is not only for people with severe physical disabilities. Conditions that frequently qualify include: Type 1 diabetes (insulin therapy), kidney disease requiring dialysis, severe hearing loss, blindness, COPD affecting walking, severe arthritis affecting dressing/walking, dementia affecting mental functions, and other conditions where the impairment takes an excessive amount of time. The key test is how long the activity takes, not whether you can eventually do it.
How to Apply — Form T2201
The DTC application uses Form T2201 (Disability Tax Credit Certificate). It has two parts.
Part A — Completed by the applicant:
Part B — Completed by a qualified medical professional:
Submitting the completed form:
What the DTC Is Worth
| Credit component | 2026 federal value (approx.) | Who qualifies |
|---|---|---|
| Base DTC amount | ~$1,540/year | Anyone with an approved DTC |
| Age amount supplement (65+) | ~$230/year additional | Seniors 65+ with DTC |
| Disability supplement (under 18) | ~$900/year additional | Children under 18 with DTC |
The DTC is non-refundable — it reduces the income tax you owe but does not create a cash refund if you owe little or no tax. However, if you do not have enough tax owing to use the full credit, you can transfer the unused portion to a supporting person (spouse, parent, grandparent, child, etc.) who can claim it on their return.
What the DTC Unlocks
- Home Accessibility Tax Credit (HATC) — You do not need to be 65+ to claim the HATC if you have an approved DTC. The DTC is one of the two eligibility paths for the HATC (the other is age 65+). See our Home Accessibility Tax Credit guide.
- Registered Disability Savings Plan (RDSP) — A tax-sheltered savings plan available only to DTC holders. The government may contribute up to $90,000 in Canada Disability Savings Grants and Bonds over the lifetime of the plan.
- Disability Supplement (Working Income Tax Benefit) — An additional payment on top of the Working Income Tax Benefit for low-income workers who have an approved DTC.
- Child Disability Benefit — Additional monthly payments through the Canada Child Benefit for children under 18 with an approved DTC.
- Provincial disability credits — Most provinces have their own disability credits that are automatically triggered when the federal DTC is approved.
- Retroactive claims — Once the DTC is approved, you can request reassessments for up to 10 prior tax years. This can result in significant lump-sum refunds.
Retroactive Claims — You May Be Owed Years of Credits
If you have had a qualifying impairment for years but never applied for the DTC, you can request retroactive credits going back up to 10 years. Once your T2201 is approved, file a T1-ADJ (tax adjustment request) for each prior year, or contact CRA at 1-800-959-8281 to request automatic reassessment of past years.
If you or a family member lives with a condition that takes significantly longer than normal to perform daily activities, the DTC is worth pursuing.
Start by asking your doctor or nurse practitioner: "Do you think I would qualify for the federal Disability Tax Credit?" They know the criteria and can advise you honestly before you pay to have the form completed.
Quick Answers
Possibly, especially if you require insulin therapy. Type 1 diabetes typically qualifies under the "life-sustaining therapy" category if you require at least 14 hours per week of therapy to sustain a vital function (insulin preparation, injection, monitoring, adjusting doses). Type 2 diabetes that is managed with pills and diet changes generally does not qualify, but if your Type 2 requires intensive insulin therapy, it may. Ask your endocrinologist or family doctor to complete Part B of Form T2201 — they can advise you honestly.
Yes. The cost of having Form T2201 completed by a medical professional is an eligible medical expense that you can claim on your tax return. Keep your receipt. If your doctor charges $100 to complete the form and you are approved, that $100 is an eligible medical expense — and you receive the DTC credit worth $1,500+ per year. The investment is almost always worthwhile if you qualify.
Yes. If CRA denies your DTC application, you can object within 90 days of the decision. Contact CRA to request a formal objection, or ask a Disability Tax Credit consultant or tax clinic to help with the appeal. Many denials are overturned on appeal when additional medical information is provided. Disability advocacy organizations in your province can often assist with appeals at no cost.
Yes. If a family member (spouse, common-law partner, parent, grandparent, child, grandchild, sibling, aunt, uncle, niece, or nephew) has an approved DTC and you financially support them, you may be able to transfer their unused DTC credit to your own tax return. This is called the Disability Amount Transfer. The transfer amount depends on how much DTC credit the family member cannot use on their own return.