At a glance

To apply for the Disability Tax Credit (DTC), complete Form T2201 with a medical practitioner and submit it to the Canada Revenue Agency. You do not calculate the credit on the form. First CRA decides whether you meet the medical test; after approval, you claim the applicable disability amount on tax returns.

The application is easier when you separate your part from the practitioner's part and describe the effects of an impairment in everyday language. Here is the order of the steps.

Step 1: Understand what CRA assesses

DTC eligibility is based on severe and prolonged effects of an impairment in physical or mental functions. 'Prolonged' generally means at least 12 continuous months. A diagnosis alone does not establish that the tax criteria are met.

There are several routes, including a marked restriction in one recognized activity, the combined effects of significant limitations in at least two categories, or qualifying life-sustaining therapy. This is why a description of actual daily functioning is critical.

Step 2: Complete Part A

The applicant or legal representative fills in identifying information and, when relevant, information about a supporting family member who may use an unused disability amount.

For example, if a parent expects to claim an unused DTC amount for their dependent child, including the supporting-person information in Part A can prevent extra follow-up later. Keep a copy of what you submitted.

Step 3: Have the practitioner complete Part B

A qualifying medical practitioner certifies the impairment and its effects. The form requests the category of impairment, the onset and duration, and relevant functional restrictions. The practitioner should describe what the person can and cannot do even with appropriate therapy or devices.

Use specific observations where possible: 'requires substantial assistance getting dressed every morning' communicates more than 'has a chronic condition.' The practitioner must supply their own accurate assessment.

Step 4: Submit and track the application

CRA offers a digital application process as well as paper-based methods. In the digital route, the applicant can receive a reference number for the practitioner to complete their portion online. Use CRA's official application instructions for current submission options.

Check the status in CRA My Account. CRA may ask for additional information and will issue a notice of determination. A target processing time is not a guarantee, so do not count on approval by a fixed personal-tax deadline.

Step 5: Use the approval correctly

Suppose CRA approves eligibility for 2024, 2025 and 2026. The person can consider the DTC on their 2026 return and review whether adjustments are appropriate for 2024 and 2025. If the person cannot use the whole non-refundable amount, qualifying transfer rules may matter.

If CRA denies the application, compare the reason with the evidence and act on objection deadlines. Do not resubmit an unchanged form and assume a different result.