ADHD and the Disability Tax Credit in Canada
Some Canadians living with ADHD may be eligible for the Disability Tax Credit if the condition creates severe and prolonged restrictions that match CRA criteria.
A diagnosis alone is not enough. The CRA generally focuses on the effects of the impairment, not only the medical label. That means two people with the same diagnosis can have different outcomes depending on daily impact, documentation, and medical certification.
How ADHD may connect to the DTC
ADHD may be relevant to a DTC review where it affects mental functions or creates a cumulative effect across more than one area of daily living.
- Attention, planning, memory, and task completion.
- Needing repeated reminders or supervision for daily routines.
- Difficulty managing time, medication, appointments, or personal care.
Examples of situations worth reviewing
- A child who needs extensive support with routines at school and home.
- An adult whose symptoms significantly interfere with everyday decision-making and self-management.
These examples do not guarantee eligibility. They are meant to show the type of daily-life impact that may make a professional review worthwhile.
What a reviewer may ask about
| Question | Why it matters |
|---|---|
| How long has the impairment lasted? | The DTC generally looks at severe and prolonged impairment, not a short-term issue. |
| What daily activities are affected? | The CRA categories focus on functioning, not only diagnosis. |
| What treatment, therapy, or supports are used? | Limitations are often assessed even after appropriate treatment, medication, devices, or support. |
| Has a medical practitioner documented the impairment? | A qualified practitioner must certify the relevant parts of the DTC form. |
Common misconception
Many people assume that only visible physical disabilities can qualify. That is not accurate. Mental functions, life-sustaining therapy, sensory impairments, mobility, and cumulative limitations may all be relevant depending on the facts.
Next step
If you are unsure whether ADHD may support a DTC review, you can request a free review. Submitting the form does not mean you qualify and does not require you to proceed.
Request a free DTC review
We will not promise approval. We will help route your request for review if appropriate.
Related pages
Official reference point: CRA guidance explains that DTC eligibility is based on the effects of an impairment and certification by a medical practitioner. This page is general information only.