The Canada Revenue Agency stops accepting old versions of the disability tax credit form on Tuesday, September 8, 2026. From that date, any application filed on a Form T2201 printed before 2023 will not be processed, and the applicant has to start again with a current form.
Two things make this worse than a routine administrative deadline. The date falls the day after Labour Day, so there is no business day left between now and the cutoff. And some of the coverage aimed at accountants and applicants has the date wrong by two days, which is exactly the kind of error that gets someone’s paperwork returned.
What changes on September 8
The CRA published the change in a tax tip on June 16, 2026. The wording is direct: applications submitted on older versions of the form, meaning anything from before 2023, will no longer be accepted beginning September 8, because those versions do not meet updated requirements. Anyone who sends one in will need to submit a new application.
The rule is about applications, not approvals. A DTC certificate already approved and sitting on file is not cancelled and does not need to be redone. What is affected is a new application, a reapplication after a denial, or a renewal of a certificate that has expired.
The practical cost is not the form itself. It is Part B, the section a doctor or nurse practitioner has to complete and sign. A rejected application means booking another appointment, often paying another certification fee, and rejoining a processing queue that already runs for months.
Some coverage has the date wrong
Advisor.ca reported the cutoff as September 6. At least one practitioner guide repeats September 6, attributing it to Investment Executive. Those are trade publications that accountants read, so the error has travelled further than it should have.
The CRA’s own notice says September 8, 2026. Where a source disagrees with the agency running the program, go with the agency.
A second error is circulating alongside it. One widely shared application guide values the credit using the 2025 disability amount of $10,138 and the old 15 percent federal rate. Both figures are out of date for 2026.
How to check which version you have
Look at the bottom left corner of the form. CRA forms carry a bracketed two-digit year, so a current form reads T2201 E (23) or later. Anything earlier is dead on Tuesday.
If you are applying online through your CRA account, this does not apply to you. The digital application is always the current version, which is the main reason the CRA is pushing people toward it.
The July change that closed the other route
A related change took effect on July 14, 2026, and got much less attention. The “submit documents” section inside a CRA account can no longer be used to send a DTC application or its supporting documents.
That section is now reserved for cases where the CRA has contacted you and asked for more information. When it does, the letter carries a case reference number, and that number is what makes the upload valid. A new application sent through submit documents does not reach the right queue.
So there are two routes left: the online DTC application inside your CRA account, or a paper Form T2201 from 2023 or later, mailed to your tax centre.
What an approval is actually worth
The federal disability amount for 2026 is $10,341. It is a non-refundable credit applied at the lowest federal rate of 14 percent, so it reduces federal tax by up to $1,448 a year.
Every province adds its own version. Ontario’s disability amount is $10,494 at a credit rate of 5.05 percent, which is another $530. An Ontario adult with enough tax payable to absorb both is looking at roughly $1,978 a year.
Here is the part most coverage leaves out. That money does not have to wait until you file.
Once the CRA approves your certificate, the disability amount goes on your federal and provincial TD1 forms, the personal tax credits return your employer uses to work out how much tax to take off each cheque. File updated TD1s with payroll and the reduction shows up immediately. Spread across 26 biweekly pay periods, that Ontario figure is about $76 a cheque. Our payroll calculator shows what a change in credits does to net pay, and the contributions overview explains where the rest of the deductions go.
Approval also reaches beyond the credit itself. It is the gateway to the Canada Disability Benefit, which is paying a $150 supplement in September specifically to offset what medical certification costs. For families, it unlocks the Child Disability Benefit paid on top of the Canada Child Benefit. An approval can also be backdated, with prior tax years adjusted where eligibility applied.
What to do before Tuesday
If you have a paper form ready to mail, check the bracketed year first. If it reads anything below 23, do not mail it. It will come back.
If your form is current and signed, mail it. There is nothing wrong with a 2023 or later paper form and the deadline does not change that.
If you have not started, use the online application. It removes the version problem entirely and the CRA processes it faster than paper.
If a doctor’s office is holding blank T2201 stock, it is worth a phone call. Clinics that print forms in batches are the most likely source of an obsolete version, and the patient is the one who pays for that mistake.
Frequently asked questions
What is the deadline for the old disability tax credit form?
September 8, 2026. From that date the CRA will not accept applications submitted on versions of Form T2201 dated before 2023. Some trade coverage reported September 6, but the CRA’s own notice gives September 8.
Do I need to reapply if my DTC is already approved?
No. The change applies to applications being submitted, not to certificates already approved. If your approval is current, nothing happens to it.
How do I tell which version of Form T2201 I have?
Check the bottom left corner for a bracketed year. A form marked (23) or later is still accepted. Anything earlier needs replacing with a fresh download from the CRA website.
Can I still apply on paper?
Yes. Paper applications remain valid as long as the form is the 2023 version or later. Download it fresh rather than reusing a saved copy, complete it with your medical practitioner, and mail it to your tax centre.
How much is the disability tax credit worth in 2026?
The federal disability amount is $10,341, which reduces federal tax by up to $1,448 at the 14 percent credit rate. Provincial amounts are additional and vary. In Ontario the provincial credit adds about $530.
Does an approval change my take-home pay?
It can. Once approved, you claim the disability amount on your federal and provincial TD1 forms and give them to your employer, which reduces the tax withheld from every cheque rather than producing a larger refund at filing.
Sources: Canada Revenue Agency tax tip, “Help speed up your disability tax credit application”, June 16, 2026; CRA Form T2201; federal and provincial non-refundable credit amounts for 2026. Last updated: September 2026.