The Tax Credit Hundreds of Thousands of Canadians Never Claim

The Disability Tax Credit is a non-refundable tax credit for people who have a severe and prolonged impairment in physical or mental functions. "Non-refundable" means it reduces the tax you owe, but it won't create a refund on its own if you already owe nothing.

That sounds limiting, and on its own it is. If you have no taxable income, the credit itself is worth $0 to you directly. But do not stop reading there, because this is exactly where most people give up and leave far more money behind. The DTC is a key that opens doors to several other programs, and some of those pay out in cash regardless of what you earn.

If the person with the disability doesn't need the full credit to wipe out their own tax bill, the unused portion can be transferred to a supporting spouse, common-law partner, parent, grandparent, child, sibling, aunt, uncle, niece, or nephew. So a parent supporting an adult child, or an adult child supporting a parent, can often claim it themselves.

• For 2026, the federal disability amount is $10,341, producing a federal credit of up to $1,448
• Children under 18 get an additional supplement of $6,032, worth up to another $844 federally
• The child supplement shrinks if child care or attendant care expenses claimed for that child exceed $3,533, and disappears entirely once those expenses pass $9,565
• Every province and territory adds its own disability amount, calculated at that province's lowest tax rate
• Unused credit transfers to a supporting family member

This is where most people rule themselves out incorrectly. The DTC is not only for people who use a wheelchair, and it is not tied to whether you can work. It is about how a lasting impairment affects specific everyday activities.

To qualify, the impairment has to be prolonged — meaning it has lasted, or is expected to last, at least 12 continuous months — and it has to markedly restrict you in at least one of the categories below, even when you are using appropriate therapy, medication, and devices.

• Walking — you cannot walk 100 metres on flat ground without significant difficulty, or it takes you an inordinate amount of time
• Mental functions — memory, problem-solving, goal-setting, judgment, adaptive functioning, attention, or regulating behaviour and emotion
• Dressing or feeding yourself
• Speaking so as to be understood, in a quiet setting, by someone familiar with you
• Hearing a spoken conversation in a quiet setting
• Vision, even with corrective lenses
• Eliminating (bowel or bladder function)
• Life-sustaining therapy — therapy needed to support a vital function that takes at least 14 hours a week, such as insulin therapy for type 1 diabetes or kidney dialysis
• Cumulative effect of significant restrictions — you are significantly restricted in two or more categories, and together those restrictions are equivalent to being markedly restricted in one

That last category matters more than people realize. You do not have to fail badly in one area. Being meaningfully limited in two or three areas that add up can qualify you.

The mental functions category is the one most commonly overlooked. Conditions like autism, ADHD, severe depression, bipolar disorder, schizophrenia, PTSD, learning disabilities, dementia, and the effects of a brain injury or stroke can all qualify when the restriction is severe and lasting. The question is never the diagnosis on its own. It is always how much the condition restricts daily functioning.

The whole application is one form: the T2201, Disability Tax Credit Certificate. It has two parts. You fill in Part A. A medical practitioner fills in Part B.

1. 1Start the application in CRA My Account. The digital form generates a reference number for your medical practitioner, which is faster than the paper route.
2. 2Complete Part A — your personal information, who is claiming the credit, and the box asking the CRA to adjust previous years. Tick that box.
3. 3Give the reference number to the right practitioner. Medical doctors and nurse practitioners can certify any category. Optometrists certify vision, audiologists hearing, speech-language pathologists speaking, occupational therapists walking/feeding/dressing, physiotherapists walking, and psychologists mental functions.
4. 4Have a specific conversation with them about function, not diagnosis. Bring examples: how long tasks take, what help you need, what you avoid, how often you need prompting or supervision.
5. 5Submit and wait. The CRA typically takes about eight weeks, longer if it asks your practitioner follow-up questions.
6. 6If you are denied, request a formal review or file a Notice of Objection. Denials are frequently overturned when the practitioner provides more detail about daily functioning.

You will also see private companies offering to handle your DTC application for a percentage of your refund. Federal rules cap what these promoters can charge, but the cap still allows a meaningful chunk of your retroactive refund to disappear. The form is free, the CRA has a help line, and most people can do it themselves or with help from a community disability organization at no cost.

This is the part that makes the paperwork worth it. DTC approval is a prerequisite for a whole set of federal programs, several of which pay real money to people with little or no taxable income.

The Canada Disability Benefit is the newest of these. It pays up to $204.20 a month as of July 2026 to low-income adults between 18 and 64 who have DTC approval, are Canadian residents for tax purposes, and have filed a tax return. You and your spouse or common-law partner both need to have filed. A supplemental lump sum of $150 becomes payable starting September 2026.

The Child Disability Benefit is automatic. If you already get the Canada Child Benefit and your child is approved for the DTC, the extra money simply appears — no separate application. For the July 2026 to June 2027 benefit year it pays up to $3,480 per eligible child, starting to phase out once adjusted family net income passes $82,847.

The Registered Disability Savings Plan is a long-term savings account for people approved for the DTC. It works a bit like an RESP: you put money in, the government adds grants and bonds on top, and everything grows tax-sheltered until it comes out.

The reason it deserves your attention is the match rate. In the best case, the government puts in $3 for every $1 you contribute. There is no other savings vehicle in Canada that comes close. Not the TFSA, not the RRSP, not even an employer RRSP match.

There is no annual contribution limit — only a lifetime limit of $200,000. Contributions are not tax-deductible (unlike an RRSP), but everything inside grows tax-free until withdrawal.

Both the grant and the bond depend on family net income. For a beneficiary under 19, that means the family income of the parents. From the year the beneficiary turns 19, it means the beneficiary's own income (plus their spouse's, if they have one) — which is why so many young adults suddenly qualify for the maximum at 19 even though their family never did.

The Grant (you contribute, government matches)

The Bond (no contribution required)

• Family net income of $38,237 or less: the full $1,000 per year
• Between $38,237 and $58,523: a partial bond that shrinks as income rises
• Above $58,523: no bond
• You do not have to contribute anything to receive the bond — you only have to open the plan and apply

Catching Up on Missed Years

This is the feature that turns a late start into a windfall. Unused grant and bond entitlement carries forward for 10 years, going back to 2008 or to the year the beneficiary first became DTC-eligible, whichever is later.

• The most grant that can be paid in a single year, using carry-forward room, is $10,500
• The most bond that can be paid in a single year is $11,000
• Carry-forward grant is paid at the rates that applied in each past year, oldest year first
• You have to contribute to trigger carry-forward grant — but bond carry-forward is automatic once the plan is open

A practical example: someone approved for the DTC who opens their first RDSP at 30 with a decade of unused entitlement could contribute $3,500 in one year and see roughly $10,500 in grant land in the account, plus bond on top if their income is low. Spread over a few years, a modest contribution habit can pull in the full $70,000 grant and $20,000 bond.

The RDSP is designed for the long term, and the withdrawal rules enforce that. Taking money out early is expensive, so it is worth understanding the mechanics before you open the plan.

Grants and bonds stop at the end of the year the beneficiary turns 49. Ten years later, at 59, the holdback has fully wound down, and from 60 onward withdrawals no longer trigger repayment. This is why the plan is generally described as a retirement vehicle for people with disabilities, not an emergency fund.

How Withdrawals Are Taxed

• Your own contributions come back out tax-free — you already paid tax on that money
• Grants, bonds, and all investment growth are taxable to the beneficiary in the year they are withdrawn
• Because most beneficiaries have low income, the actual tax paid is often very small or nothing at all
• Each withdrawal is a blend of the taxable and non-taxable portions, in proportion to what is in the plan

One more piece of good news: RDSP assets and withdrawals are fully exempt from provincial disability benefit calculations in every province and territory. Having an RDSP will not cost you your provincial disability support. This was a deliberate policy choice and it holds nationwide.

1. 1Never applying because you assume you would not qualify. The mental functions and cumulative effects categories cover far more people than most realize.
2. 2Not ticking the retroactive box on the T2201. This is the difference between a credit going forward and a five-figure cheque covering past years.
3. 3Giving up after a denial. Denials are often about a thin Part B, not genuine ineligibility. Ask your practitioner to expand on daily functioning and request a review.
4. 4Opening the RDSP late. Grants stop at 49 and carry-forward only reaches back 10 years. Time is the one thing you cannot recover.
5. 5Contributing more than $1,500 a year when income is under the threshold. Grant maxes out at $3,500 per year, and the extra contribution earns no match. Spread contributions across more years instead of front-loading them.
6. 6Letting the DTC certificate lapse. Approvals are sometimes granted for a fixed period. If yours expires and you do not renew, the grants, bonds, and benefits all stop.
7. 7Not filing a tax return every year. Every income-tested program here reads your return. No return means no benefit.

Official Government Resources