Disability Tax Credit (DTC) Application Guide

The Disability Tax Credit (DTC) is a non-refundable federal tax credit that can reduce the amount of income tax you, or a family member who supports you, have to pay. If you have a severe and prolonged impairment, applying for the DTC can also open the door to other supports, including the Registered Disability Savings Plan and the Canada Disability Benefit.

The application process can feel complicated, especially with several CRA procedural changes rolling out in 2026. Here is a clear, step-by-step breakdown to help you apply with confidence.

A 6-step guide to applying for the Disability Tax Credit, including an important CRA submission update for 2026

Step 1: Check Your Eligibility

To qualify for the DTC, your impairment must be severe and prolonged. This means it is expected to last at least 12 months and significantly restricts one or more basic activities of daily living, such as walking, speaking, hearing, feeding yourself, or mental functions necessary for everyday life. The restriction generally needs to be present all or almost all the time, roughly 90 percent of the time, even with appropriate therapy, medication, and devices. In some cases, two or more significant limitations that do not individually meet the threshold can qualify together if their combined effect is equivalent to one marked restriction. Life sustaining therapy is assessed under its own separate criteria.

Step 2: Get Form T2201

Form T2201, the Disability Tax Credit Certificate, is available on the CRA website or can be completed online through CRA My Account. It is important to use the current version of the form. The CRA has stated it will stop accepting any version of Form T2201 dated before 2023, effective September 6, 2026, so always download a fresh copy rather than reusing a saved file.

Step 3: Complete Part A

Part A is completed by the applicant or their legal representative. This section collects personal information, including identification details and consent for the CRA to consider applying the credit to prior tax years if eligibility is confirmed. If the DTC is approved, the CRA can reassess up to 10 previous tax years, which may result in a retroactive refund.

Step 4: Complete Part B

Part B must be completed and certified by a qualified medical practitioner. This section describes the nature of the impairment and its functional effects on daily living, rather than relying on diagnosis alone. The CRA assesses eligibility based on how the impairment affects daily functioning.

Step 5: Submit Your Application

You can start your application through CRA's digital DTC process in My Account, or complete and mail the paper Form T2201 to your tax centre.

An important update for 2026: as of July 14, 2026, the general "Submit documents" feature in CRA My Account no longer accepts DTC applications or related documents unless the CRA has specifically requested them. If the CRA needs more information after you apply, it will contact you directly by mail or through your CRA account, along with a case reference number to use for that specific request. Applicants should use the dedicated digital DTC application process, or mail the paper form, rather than the general document upload feature.

Step 6: CRA Reviews Your Application

Once submitted, the CRA reviews your application and sends a decision along with information about the tax benefits that may be available to you. Processing times can vary, so it is a good idea to keep a complete copy of everything you submit.

A Few Things to Keep in Mind

The DTC is non-refundable, which means it reduces the amount of tax you owe but does not generate a payment on its own if you have no tax payable. If you cannot use the full credit yourself, an unused amount may be transferable to a supporting family member.

Because CRA procedures and indexed amounts change from year to year, it is always worth confirming the latest details directly on canada.ca before you apply, particularly given the submission changes taking effect in 2026.

Important: This post is intended as general information and is not a substitute for professional tax or legal advice. For guidance specific to your situation, consult the CRA or a qualified tax professional.