To qualify for the Canada Revenue Agency’s Disability Tax Credit, a medical practitioner must certify on Form T2201 that you have a severe and prolonged impairment meeting one of three standards; you apply by completing Part A of the form yourself through CRA My Account or on paper, then having a qualified practitioner complete and submit Part B. This guide walks through Disability Tax Credit eligibility and how to apply, including recent 2026 changes that make certification simpler for people with certain long-lasting conditions.
Who Qualifies for the DTC
Eligibility turns on how an impairment affects daily life, not on the diagnosis itself. A qualified practitioner has to certify that the impairment is severe and prolonged, meaning it has lasted, or is expected to last, at least 12 continuous months. There are three ways to meet the standard.1Canada.ca. Eligibility for the DTC
The first is a marked restriction in one basic activity of daily living. You are either unable to perform the activity, or you take at least three times longer than someone of a similar age without the impairment, even with appropriate therapy, medication, or devices. The restriction has to be present at least 90% of the time.1Canada.ca. Eligibility for the DTC
The second is the cumulative effect of significant limitations in two or more categories. No single limitation is severe enough on its own, but combined they produce an equivalent effect. The same 90% frequency and 12-month duration rules apply.1Canada.ca. Eligibility for the DTC
The third is needing life-sustaining therapy at least twice a week for an average of 14 hours per week.2Inclusion Canada. Disability Tax Credit
The qualifying activities are walking, mental functions necessary for everyday life, dressing, feeding, eliminating (bowel or bladder functions), hearing, speaking, and vision. Mental functions cover memory, judgment, problem-solving, adaptive functioning, and perception of reality.3Canada.ca. Mental Functions Necessary for Everyday Life
A 2025 Tax Court decision shows how strictly the standard is read. A Newfoundland and Labrador taxpayer appealed a denial, pointing to frequent bathroom visits from gastrointestinal conditions and to ADHD affecting mental functions. The court dismissed the appeal, finding that six daily bathroom visits of about 10 minutes each did not amount to an “inordinate amount of time,” and that her successful work as an apprentice electrician undermined the claim that mental functions were markedly restricted.4Financial Post. CRA Denied Taxpayer Disability Tax Credit
Streamlined Certification for Listed Conditions in 2026
The federal government’s Spring Economic Update 2026 introduced a shorter certification path for certain long-lasting conditions. For these conditions, a practitioner only has to certify that the condition exists. They no longer have to document that the impairment is severe and prolonged or describe its specific effects on daily activities. This applies to certifications issued for the 2026 tax year onward.5Canada.ca. Spring Economic Update 2026
The government identified 43 qualifying conditions. Among them are Alzheimer’s disease, ALS, autism spectrum disorder level 3, bilateral blindness, severe cerebral palsy, cystic fibrosis, dementia, Down syndrome, Duchenne muscular dystrophy, Huntington disease, severe or profound intellectual disability (or IQ of 70 or below), paraplegia, quadriplegia, advanced or severe Parkinson’s disease, renal failure requiring lifelong dialysis, schizophrenia, spinal muscular atrophy types 1 and 2, severe stroke with no functional recovery, and severe traumatic brain injury.5Canada.ca. Spring Economic Update 2026
How to Apply Using Form T2201
The application is Form T2201, Disability Tax Credit Certificate. Part A is completed by the applicant or a legal representative. Part B must be completed and signed by a qualified medical practitioner. Applicants cannot fill out Part B themselves, and forms submitted that way will not be processed.6Canada.ca. How to Apply for the DTC
Who Can Certify Which Impairments
Medical doctors and nurse practitioners can certify all categories. Beyond those:
- Optometrists certify vision.
- Audiologists certify hearing.
- Psychologists certify mental functions.
- Physiotherapists certify walking.
- Occupational therapists certify walking, feeding, and dressing.
- Speech-language pathologists certify speaking.
Starting with certifications issued after 2026 for the 2027 tax year, the list widens. Podiatrists will be able to certify walking. Occupational therapists will be able to certify eliminating. Physiotherapists will be able to certify feeding and dressing. Speech-language pathologists will be able to certify feeding and hearing. Provincial and territorial public guardians, trustees, and curators will also be able to certify applications for adults under their care who hold a valid certificate of incapacity, replacing the separate practitioner certification in those cases.5Canada.ca. Spring Economic Update 2026
Submitting the Form
You can apply digitally or on paper. Digitally, you complete Part A through your CRA My Account or by phone, receive a reference number, and give it to your practitioner, who then submits Part B online. On paper, both parts are completed and mailed to a CRA tax centre in Jonquière, Sudbury, or Winnipeg.6Canada.ca. How to Apply for the DTC
The CRA recommends applying before filing your tax return to avoid delays, and notes that online submission is faster. Two procedural changes are worth noting. As of mid-2026, the CRA no longer accepts new DTC applications through the “submit documents” section of CRA accounts; that channel is now reserved for additional information on existing cases. Starting September 2026, the CRA will not accept older versions of Form T2201 dating before 2023.7Canada.ca. Help Speed Up Your Disability Tax Credit Application If your practitioner charges a fee for completing the form, you can claim it as a medical expense.
How Much the Credit Is Worth
The DTC is non-refundable, so it reduces the tax you owe but does not on its own generate a refund. For 2026, the credit amount is $10,341, which translates to a federal tax reduction of up to $1,448.5Canada.ca. Spring Economic Update 2026 For children under 18, an additional supplement of up to $6,032 may be available, though it is reduced or eliminated if child care or attendant care expenses are also claimed.8TaxTips.ca. Disability Tax Credit
If the person with the disability doesn’t owe enough tax to use the full credit, the unused portion can be transferred to a supporting spouse, common-law partner, or other qualifying family member. The supporting person must provide at least some of the basic necessities of life — food, shelter, or clothing — on a regular basis.9Canada.ca. Claiming the DTC Spouses claim the transferred amount on line 32600; other family members use line 31800.10Canada.ca. Line 31800 – Disability Amount Transferred From a Dependant
If you have been eligible for years but never claimed the credit, you can apply it retroactively for up to 10 previous tax years. You can either ask the CRA to adjust past returns automatically when you submit the application, or file separate adjustment requests through CRA My Account or by mailing a T1ADJ form for each year.9Canada.ca. Claiming the DTC
If Your Application Is Denied
Current CRA data cited by the Disability Advisory Committee puts the approval rate around 96.6%, with fewer than 4% of applications rejected or under appeal.11Canada.ca. 2024 Fifth Annual Report of the Disability Advisory Committee If you are denied, the CRA sends a notice explaining the reason. Compare it against your T2201, then choose one of three routes.
- Request a redetermination by submitting new medical information, such as an updated report or a letter from a practitioner explaining how the impairment affects daily life, through CRA My Account or by mail.12Canada.ca. Review a Decision on the DTC
- File a formal objection within 90 days of the date on the notice of determination.13Canada.ca. Demystifying the Disability Tax Credit
- Appeal to the Tax Court of Canada if a formal objection is unsuccessful.
In 2022, the CRA received 950 objections on DTC decisions and allowed 510 in full and 60 in part.11Canada.ca. 2024 Fifth Annual Report of the Disability Advisory Committee
What DTC Approval Unlocks
Approval matters even for people with little or no taxable income, because it acts as a gateway to other federal programs.
Registered Disability Savings Plan
The RDSP is a long-term savings vehicle available only to people approved for the DTC. The beneficiary must have a valid social insurance number, be resident in Canada, and be under 60 when the plan is opened.14Canada.ca. RDSP Eligibility and Contributions Contributions attract federal matching through the Canada Disability Savings Grant at one, two, or three times the contribution depending on family income. Low-income beneficiaries may also receive the Canada Disability Savings Bond, which requires no personal contributions. Both are available until the year the beneficiary turns 49.15GetSmarterAboutMoney.ca. How RDSPs Work If DTC eligibility is later lost, the RDSP must be closed and the government reclaims grants and bonds paid in the preceding 10 years.
Child Disability Benefit
Families with a DTC-eligible child under 18 automatically receive the Child Disability Benefit as a supplement to the Canada Child Benefit. For the July 2025 to June 2026 payment period, the maximum is $3,411 per year ($284.25 per month) per eligible child, and the amount begins to decrease when adjusted family net income exceeds $81,222.16Canada.ca. Child Disability Benefit
Canada Disability Benefit
The Canada Disability Benefit is a newer federal program for DTC-eligible adults between 18 and 64. Payments began in July 2025 and are administered by Service Canada. Eligibility requires DTC approval, Canadian residency, and a filed tax return for the previous year. The benefit uses a $2,400 annual reference amount, reduced based on income. Reductions start at $23,000 in adjusted income for single beneficiaries and at $32,500 for those with a spouse or partner.17Canada Gazette. Canada Disability Benefit Regulations Applicants can receive back payments for up to 24 months from the date the application is received, but not for any period before June 2025.18Canada.ca. Canada Disability Benefit
DTC approval also opens access to the Canada Workers Benefit Disability Supplement, the Canada Caregiver Credit, and the Home Accessibility Tax Credit.2Inclusion Canada. Disability Tax Credit