What to Do When a Doctor Will Not Complete Form T2201

A medical practitioner who says you would not qualify for the disability tax credit is answering a question that is not theirs to answer. The Canada Revenue Agency decides eligibility. Part B of Form T2201 asks a practitioner to describe how an impairment affects daily life, and the CRA states plainly that it bases its decision about eligibility on that description. Naming that split at the appointment resolves a large share of refusals.

The rest come down to three fixable problems. You may be asking a professional who is not authorized to certify your impairment category. The practitioner may be worried about unpaid administrative work, which they are allowed to charge for and which the federal government now partly reimburses. Or they may be waiting for a level of diagnostic certainty the form does not ask for.

What Part B actually asks a practitioner to certify

The CRA tells practitioners to use their best professional judgment and lists four acceptable bases for the assessment. A practitioner may rely on the symptoms a patient reports, their knowledge of the patient's medical history, their direct observation of the patient's limitations, and their knowledge of how the impairment typically affects a patient's condition. Reported symptoms count. A practitioner does not need to have personally witnessed every limitation.

The thresholds are specific, and they are about function rather than diagnosis. Two people with the same condition can get opposite answers, because the eligibility test measures effect.

You may be asking the wrong professional

Family doctors are not the only certifiers, and for several categories they are not the most practical choice. A physiotherapist who has watched you walk, or an occupational therapist who has assessed you dressing and feeding, can often describe function more precisely than a physician working from a ten-minute appointment. Nurse practitioners can certify every category.

Specialists count as medical doctors. A neurologist, rheumatologist or psychiatrist who already manages your condition can usually speak to severity with more authority than a walk-in clinic, and they have the chart notes to support it.

Four common refusals and what resolves each

• "You would not qualify anyway." This is a determination the CRA makes, not the practitioner. Ask them to complete Part B as written and let the CRA assess it. A refused application that gets reviewed costs you a form fee. An application never submitted costs you every year of retroactive credit.
• "I do not know you well enough." The CRA permits assessment based on reported symptoms and medical history, not only direct observation. If the practitioner remains uncomfortable, ask for a referral to the specialist or allied health professional who already assesses the function in question.
• "I do not have time for paperwork." Completing Part B is billable. Ask what the fee is and book a dedicated appointment for the form rather than adding it to a visit about something else.
• "Come back once we have more test results." The 12-month requirement describes how long the impairment has lasted or is expected to last, not how long the practitioner has known you. Ask specifically what is missing, and whether a colleague could certify in the meantime.

What the form costs, and what comes back

If a practitioner charges for completing the application, you pay it. The CRA confirms the fee is claimable as a medical expense on lines 33099 or 33199 of your return, which recovers part of it at your credit rate.

A larger offset arrived this year. Starting in September 2026, Canada Disability Benefit recipients receive a fixed $150 lump sum to help cover the cost of obtaining the DTC. Employment and Social Development Canada confirms there is no application for this payment. It arrives automatically for each approved DTC certificate that qualifies someone for a monthly CDB payment, and people who received a CDB payment before September 2026 remain eligible even if they are no longer receiving monthly payments.

Switching to a different practitioner

The digital application starts with you. Part A is completed in your CRA account or by phone, and it produces a reference number that a practitioner uses to submit Part B online. That number is valid for up to 12 months and can be used only once. If a practitioner declined without submitting anything, your number is still live and you can hand it to someone else. If you need to set up account access first, start with the CRA account walkthrough.

A practitioner who does not want to handle the reference number has a paper route. They can complete Part B in the digital tool for medical practitioners, print it, sign it, and give it to you. You then complete and sign Part A and mail the full Form T2201 to your tax centre. Both parts must travel by the same method, so a digital Part B cannot be paired with a mailed Part A.

Two process changes affect how applications reach the CRA this year, including which uploads are accepted and which versions of the paper form remain valid. Those dates are covered in the 2026 DTC application changes guide. The CRA is also flagging service impacts from a Canada Post disruption, which is a further argument for the digital route where it is available to you.

If the CRA denies the application

The CRA sends a notice of determination by mail explaining the reason. Read it against your copy of the form, because the decision rests on what the practitioner wrote in Part B. Vague functional descriptions are a far more common cause of denial than genuine ineligibility. Three routes stay open.

Track the 90-day date from the notice of determination while you gather documents. Sending new information does not automatically restart that clock, so a review request and an objection are worth running in parallel when the deadline is close.

What an approval is actually worth

For the 2025 tax year the disability amount is $10,138. Applicants under 18 on the last day of the year may also claim a $5,914 supplement for children, for $16,052 combined. The credit is non-refundable, so it reduces tax owing rather than generating a refund on its own, and unused amounts may transfer to a supporting family member.

Approval can also be backdated. If you were eligible in earlier years but never claimed, you may go back up to 10 years, either by checking the adjustment box on the application or by asking the CRA to reassess. That is what makes an unfilled form expensive.

• Registered disability savings plan, which carries federal grants and bonds.
• Child disability benefit, paid with the Canada Child Benefit.
• Canada workers benefit disability supplement.
• Canada Disability Benefit, for approved applicants aged 18 to 64 who are Canadian residents for tax purposes and have filed a 2025 return. Payment dates sit alongside other federal deposits in the monthly benefit payment calendar.

For a wider view of what a household can claim once the DTC is approved, work through the complete Canadian benefits guide.

Quebec residents file a second form

The federal Form T2201 does not cover the Quebec credit. Quebec residents also complete form TP-752.0.14-V, Certificate Respecting an Impairment, with a health professional, and file it directly with Revenu Québec. Where the impairment is permanent, a new certificate is generally not required in later years unless Revenu Québec asks for one or the condition improves.