How to Complete Form T2201, Canada's Disability Tax Credit Certificate

What Is Form T2201

Form T2201, the Disability Tax Credit Certificate, is the official CRA document that determines whether you qualify for the Disability Tax Credit. Without an approved T2201 on file with CRA, there is no DTC. It's that simple.

The form has two parts: one that you fill out, and one that your medical practitioner completes. The CRA uses Part B, the medical certification, to determine whether your impairment meets the "markedly restricts" standard for at least one of the 13 qualifying daily living activities. For life-sustaining therapy (like insulin-dependent Type 1 diabetes), the threshold is 14+ hours per week of therapy time.

The federal credit is worth up to $1,448 per year (14% of the $10,341 base amount for 2026), plus provincial amounts on top. Over prior years, the tax adjustment can vary widely depending on approved years, taxable income, province, transfers, and any child supplement. Large adjustments are possible in some files, but no refund amount is guaranteed.

Part A: What You (the Applicant) Fill Out

Part A is straightforward, it's your section. Here's what to complete:

• Section 1, Applicant information: Your full name, social insurance number, date of birth, and address. If you're completing this for a dependent child or spouse, their information goes here, not yours.
• Section 2, Tax years: Indicate the years you want the DTC applied to. If you're claiming retroactively, list all applicable years. The CRA can apply the credit back up to 10 years.
• Section 3, Transfer of the credit: If you want to transfer the credit to a supporting person (spouse, parent, etc.), indicate that here. This is claimed on line 31800 via Schedule 2.
• Section 4, Authorization: You authorize CRA to contact your medical practitioner if they need clarification. Sign and date this section.

One thing many people miss: if you're filing for a deceased person's estate, you can still submit a T2201 and claim retroactive years they qualified for. The process is the same; the estate trustee signs Part A.

Part B: What Your Medical Practitioner Fills Out

Part B is where the DTC is won or lost. Your medical practitioner must answer specific questions about your impairment, and the quality of those answers determines whether CRA approves your claim.

The CRA is looking for two things above all else:

1. Severity: Does the impairment "markedly restrict" your ability to perform a basic activity of daily living "Markedly restricts" means the activity either cannot be performed at all, or takes 3 times longer than normal, and this is the case 90% of the time (all or substantially all).
2. Duration: Has the impairment lasted, or is it expected to last, at least 12 consecutive months

Part B asks your practitioner to describe the functional impact of your impairment, not just the diagnosis. A diagnosis of "fibromyalgia" or "ADHD" doesn't automatically qualify someone. What qualifies someone is how that condition restricts their daily functioning.

Which Medical Practitioner Can Certify Which Conditions

This is one of the most common sources of confusion. Different practitioners can certify different impairment categories:

A practical tip: if you see a specialist (neurologist, rheumatologist, psychiatrist), they qualify as "medical doctors" for T2201 purposes. Specialists often write stronger certifications because they can speak to the clinical severity of your condition with more authority.

What the CRA Actually Looks for in Part B

After reviewing hundreds of T2201 applications, here's what I've observed: CRA assessors want specific, functional language, not clinical jargon and not vague generalities.

Strong Part B answers sound like:

"Patient requires 45-60 minutes to dress independently due to joint inflammation and pain. On their best days this takes 30 minutes. On bad days (approximately 4-5 days per week) they cannot dress without assistance. This has been the case for the past 3 years."

Weak Part B answers sound like:

"Patient has fibromyalgia and experiences chronic pain."

The difference is functional description. Tell your practitioner before the appointment: describe specifically what activities are difficult, how long they take, and how often you need help. Give them the language, because busy practitioners often default to clinical shorthand that doesn't satisfy CRA's criteria.

5 Common Mistakes That Cause T2201 Denials

1. Choosing the wrong practitioner. A speech-language pathologist can't certify your walking impairment. Match the impairment category to the correct practitioner type.
2. Describing diagnosis, not function. CRA approves functional impairments, not diagnoses. Your practitioner must describe what you cannot do, not just what condition you have.
3. Underestimating severity on paper. Many practitioners are conservative in written assessments. If they write "moderate restriction" instead of "marked restriction," CRA will likely deny. Coach your practitioner on the actual daily impact.
4. Missing the 90% threshold. CRA requires the restriction to apply "all or substantially all" of the time, meaning roughly 90% of the time. If the form suggests the impairment is intermittent (say, only during flares), CRA may deny. The form needs to reflect the overall pattern.
5. Using an outdated version of T2201. CRA occasionally updates the T2201. Always download the current version from CRA's website. Using a version from 3 years ago is a common oversight.

How to Submit Your T2201

Option 1: Paper Submission (Mail)

Print and mail the completed form to your tax centre. The address shown on your Notice of Assessment is the safest reference, or use the address listed on CRA's website for your province. For most provinces, T2201 applications are processed through the Sudbury Tax Centre, Canada Revenue Agency, PO Box 20000, Station A, Sudbury ON P3A 5C1. Keep a photocopy. Mailed forms can take 6-8 weeks to process, sometimes longer during peak season.

Option 2: Digital Submission via CRA My Account

This is the recommended route. Log into CRA My Account, navigate to "Submit documents," and upload a signed PDF of the T2201. Digital submissions are tracked more easily, and you can check status online. Your medical practitioner may also have access to CRA's practitioner portal to submit Part B directly.

Whether you mail or upload, keep a copy of everything. If CRA loses the form (it happens), you'll need to resubmit without the delay of gathering documentation again.

What Happens After You Submit

After CRA receives your T2201, here's the typical process:

1. Weeks 1-2: CRA logs receipt of the form. You may see "received" status in My Account.
2. Weeks 2-6: A CRA assessor reviews the medical information in Part B. They may contact your practitioner directly for clarification if something is unclear.
3. Weeks 6-8: CRA issues a Notice of Determination. This arrives by mail and may also be visible in My Account.
4. If approved: CRA may reassess applicable tax years and issue refunds or adjusted assessments. You may also be able to claim the credit on future returns while the approval remains valid.
5. If denied: You have 90 days to file a Notice of Objection. See our DTC denial appeal guide for the full process.

If you haven't heard anything after 8 weeks, call CRA at 1-800-959-8281. They can confirm receipt and give you an estimated timeline. Don't assume silence means denial, it usually just means your file is in the queue.