Who qualifies for the Disability Tax Credit in Canada?

You qualify if you have a severe and prolonged impairment in physical or mental functions that markedly restricts daily activities or requires life-sustaining therapy. A medical practitioner must certify your condition.

How much is the Disability Tax Credit worth?

The DTC is approximately $9,872 in federal credit (worth ~$1,481 in tax savings at 15%). With provincial credits, total savings range from $2,000-$3,500+. The supplement for under 18 adds ~$5,758.

Can mental illness qualify for DTC?

Yes, mental health conditions can qualify if they markedly restrict mental functions necessary for everyday life. This includes some cases of severe depression, PTSD, bipolar disorder, and schizophrenia.

Disability Tax Credit Canada 2026 | Eligibility and How to Apply

The Disability Tax Credit is one of Canada’s most valuable — and most underused — tax benefits. Worth $2,000-$3,500+ in direct tax savings per year, it also unlocks the Registered Disability Savings Plan (which offers up to $3,500/year in government grants) and boosts the Canada Workers Benefit. Yet many Canadians who qualify never apply, often because they assume their condition isn’t “severe enough.” If a physical or mental impairment markedly restricts your daily activities or requires life-sustaining therapy, it’s worth completing Form T2201 — and if approved, you can claim retroactively for up to 10 years of missed credits.

Disability Tax Credit Overview

What is the DTC?

Feature	Details
Type	Non-refundable tax credit
Purpose	Recognize disability expenses
Eligibility	Medical certification required
Transferable	To supporting family member

Why It Matters

Benefit	Value
Direct tax savings	$2,000-$3,500+
RDSP access	Opens Registered Disability Savings Plan
CWB supplement	Additional Canada Workers Benefit
Child tax credit	Extra amounts

DTC Amounts 2026

Federal Credit

Category	Credit Amount	Tax Savings (15%)
Base amount	~$9,872	~$1,481
Under 18 supplement	~$5,758	~$864
Total if under 18	~$15,630	~$2,345

Provincial Addition

Province	Approximate Additional
Ontario	~$900
BC	~$900
Alberta	~$1,600
Quebec	~$700

Total Value Example

In Ontario	Amount
Federal savings	~$1,481
Ontario savings	~$900
Total	~$2,381

Eligibility Criteria

Basic Requirements

Requirement	Details
Severe	More than minor
Prolonged	12+ months expected
Marked restriction	In daily activities
Or	Life-sustaining therapy

Qualifying Impairments

Category	Examples
Vision	Legally blind
Hearing	Profoundly deaf
Walking	Cannot walk 100m
Mental functions	Cognitive impairment
Feeding/Dressing	Requires help
Eliminating	Requires help
Speaking	Unable to communicate
Life-sustaining therapy	Dialysis, insulin therapy

Mental Functions

May Qualify	Details
Memory	Severe impairment
Problem solving	Unable to perform
Goal setting	Marked restriction
Judgement	Significantly affected
Adaptive functioning	Daily life impact

What “Markedly Restricted” Means

Definition

Feature	Details
All or most of time	90%+ of year
Takes 3x longer	Than normal
Or cannot do	Without assistance
Compared to	Someone same age, no impairment

Examples

Activity	Markedly Restricted If
Walking	Can’t walk 100m on flat ground
Dressing	Takes extensive time, needs help
Feeding	Cannot prepare basic meal
Mental functions	Cannot manage personal affairs

Cumulative Effects

New Option

Feature	Details
Multiple impairments	Combined effect
Each not severe enough	But together qualify
Needs certification	Same form

How to Apply

Step-by-Step Process

Step	Action
1	Get Form T2201
2	Complete Part A (your info)
3	Medical practitioner completes Part B
4	Submit to CRA
5	Wait for determination

Form T2201

Section	Who Completes
Part A	Applicant or legal rep
Part B	Medical practitioner

Medical Practitioners Who Can Certify

Impairment Type	Certified By
Vision	Optometrist or MD
Hearing	Audiologist or MD
Walking	MD, physio, OT
Mental functions	MD or psychologist
All impairments	Medical doctor

After You Apply

CRA Review

Timeline	Expectation
Processing	8+ weeks typically
May request info	More details
Decision letter	Approved or denied

If Approved

Action	Benefit
Claim current year	On tax return
Request reassessment	For previous years
Back up to 10 years	Refunds possible

If Denied

Option	Details
Request review	With CRA
Provide more info	Medical documentation
Object formally	If still denied

Claiming the DTC

On Your Tax Return

Line	Details
Line 31600	Basic disability amount
Line 31800	Supplement for under 18
Schedule 1	Calculate federal credit

Transferring to Family

If You	Can Transfer
Don’t need full credit	To supporting person
Spouse	Supporting you
Parent	If dependent
Other relative	If dependent

RDSP Access

Registered Disability Savings Plan

Opened With DTC	Benefits
Grants	Up to $3,500/year
Bonds	Up to $1,000/year
Tax-deferred	Growth
Lifetime limit	$200,000 contributions

Grant Matching

Family Income	Matching Rate
Under $111,733	Up to 300% on first $500
Any income	100% on next $1,000

CWB Disability Supplement

Additional Benefit

If DTC Approved	Receive
CWB disability supplement	~$784 extra
If working	And low income

Children and DTC

Under 18 Benefits

Benefit	Amount
Supplement credit	~$5,758 additional
Child Disability Benefit	~$3,322/year
Through CCB	Monthly payments

Child Disability Benefit

Feature	Details
Paid with CCB	Monthly
Maximum	~$277/month
Income-tested	May be reduced

Common Conditions

Often Qualify

Condition	Typical Category
Autism spectrum	Mental functions
Type 1 diabetes	Life-sustaining therapy
MS	Walking, dressing
Cerebral palsy	Multiple
Blindness	Vision
Deafness	Hearing
Severe arthritis	Walking, dressing
Crohn’s/colitis	Eliminating

Sometimes Qualify

Condition	Depends On
Depression	Severity
ADHD	Impact on functions
Fibromyalgia	Restrictions
Chronic pain	Daily activity impact

The Bottom Line

Don’t leave thousands of dollars on the table. If you or a family member has a severe, prolonged impairment — including mental health conditions — apply for the DTC using Form T2201 with the right medical practitioner. Approval unlocks not just annual tax savings of $2,000-$3,500+ but also RDSP grants, the CWB supplement, and the Child Disability Benefit. If your first application is denied, appeal with additional documentation — many successful claimants were initially rejected.

Tips for Approval

Documentation

Do	Don’t
Be detailed about restrictions	Minimize difficulties
Include all limitations	Forget mental health
Get appropriate practitioner	Use wrong specialist
Appeal if denied	Give up too easily

Working with Your Doctor

Tip	Details
Explain daily struggles	Concrete examples
Describe worst days	Not best days
Bring activity logs	If helpful
Ask them to be thorough	On form

Retroactive claims

How retroactive claims work

Once approved, you can claim the DTC for previous years when you were eligible.

Element	Details
Maximum lookback	10 years
Request method	T1-ADJ (T1 Adjustment Request) or through CRA My Account
Automatic adjustment	CRA may adjust prior years automatically upon approval
Requirement	The disability must have existed in those tax years
Filed returns	Can file late returns if needed
No taxable income	Transfer credit to a supporting family member instead

Retroactive refund potential

Scenario	Approximate refund
Adult, 5 years back	$7,000–$10,000
Adult, 10 years back	$12,000–$20,000
Child (under 18), 10 years back	$20,000–$30,000+

Actual amounts depend on taxable income, province, and years of eligibility.

If your application is denied

Common reasons for denial

Reason	Solution
Incomplete form	Resubmit with complete information
Not markedly restricted (per CRA)	Provide more detail on severity of daily limitations
Wrong practitioner type	Use an authorized practitioner for your impairment category
Condition not shown as prolonged	Provide 12+ month medical history

Request for reconsideration

Write to CRA within 90 days of the denial letter
Include new information or clarification from your medical practitioner
Ask your doctor to provide a supporting letter describing daily functional limitations
Specify why the original decision was incorrect

Notice of Objection

Step	Action
File within 90 days	Of the denial or reconsideration decision
Include reasons	Why you disagree, with supporting evidence
New medical documentation	Additional reports or specialist assessments
Wait for review	6–12 months typical

As a last resort, you can appeal to the Tax Court of Canada. Many initial denials are overturned on review — do not give up after the first rejection.

Transferring the DTC

Who can receive the transfer

Relationship	Eligible
Spouse or common-law partner	Yes
Parent or grandparent	Yes
Child (adult or minor)	Yes
Sibling	Yes
Aunt, uncle, niece, nephew	Yes
In-laws	Yes (with dependency)

Transfer rules

Situation	Transfer allowed
Person with disability has no tax owing	Full transfer
Person has some tax owing	Partial transfer (unused portion)
Person uses entire credit themselves	No transfer available

How to transfer

Complete the transfer section on Form T2201
The supporting person claims the credit on their tax return
Report on Schedule 1 (Line 31800 or Line 32600)

Claiming medical expenses alongside the DTC

The DTC and the Medical Expense Tax Credit (METC) are separate credits — you can claim both. For current amount thresholds, see maximum disability tax credit Canada.

Expense	Claimable alongside DTC
Therapy and treatments	Yes
Medications	Yes
Assistive devices	Yes
Home modifications	Yes (via Home Accessibility Tax Credit)
Travel for medical care	Yes
Attendant care	Choose one: attendant care OR DTC (usually DTC is more valuable)