What Is the Disability Tax Credit?
The Disability Tax Credit (DTC) is a non-refundable federal tax credit for Canadians with severe and prolonged physical or mental impairments that restrict daily activities.
| Feature |
2026 Details |
| Federal credit amount |
$9,428 |
| Supplement (under 18) |
$5,500 |
| Provincial credits |
Additional (varies) |
| Transferable |
Yes, to supporting family |
| Retroactive claims |
Up to 10 years |
Why the DTC Matters
Direct Tax Savings
| Province |
Federal Credit |
Provincial Credit |
Total Annual Savings |
| Ontario |
$9,428 |
~$5,500 |
~$15,000 |
| BC |
$9,428 |
~$4,200 |
~$13,600 |
| Alberta |
$9,428 |
~$5,800 |
~$15,200 |
| Quebec |
$9,428 |
~$3,800 |
~$13,200 |
Unlocks Other Benefits
| Benefit |
Requirement |
| RDSP (Registered Disability Savings Plan) |
DTC approval required |
| Canada Workers Benefit – Disability Supplement |
DTC approval required |
| Child Disability Benefit |
DTC approval for child |
Eligibility Criteria
The “Markedly Restricted” Test
To qualify, your impairment must:
- Be severe — significantly restricts daily living
- Be prolonged — lasted or expected to last 12+ months
- Occur all or substantially all of the time (90%+)
Qualifying Categories
| Category |
Examples |
| Vision |
Blind or very low visual acuity |
| Hearing |
Deaf or severe hearing loss |
| Speaking |
Unable to speak clearly |
| Walking |
Cannot walk 100m on flat ground |
| Eliminating |
Need assistive device or 3x normal time |
| Feeding |
Cannot feed self without assistance |
| Dressing |
Cannot dress without significant help |
| Mental functions |
Severe cognitive/psychiatric impairment |
| Life-sustaining therapy |
Requires 14+ hours/week of therapy |
Cumulative Effect of Restrictions
Even if no single restriction qualifies alone, you may qualify if:
- You have 2+ restrictions
- Combined effect is equivalent to a single marked restriction
- Takes 3x longer than normal to complete basic daily activities
Conditions That Often Qualify
| Condition |
Typical Category |
| Type 1 diabetes |
Life-sustaining therapy |
| Autism spectrum disorder |
Mental functions |
| ADHD (severe) |
Mental functions |
| Major depression |
Mental functions |
| Bipolar disorder |
Mental functions |
| Chronic fatigue syndrome |
Cumulative effect |
| Fibromyalgia |
Cumulative effect |
| Crohn’s disease |
Eliminating |
| Multiple sclerosis |
Walking, cumulative |
| Cerebral palsy |
Various |
| Blindness |
Vision |
| Deafness |
Hearing |
| Amputation |
Walking, dressing |
| Chronic kidney disease (dialysis) |
Life-sustaining therapy |
Structure
| Part |
Who Completes |
Content |
| Part A |
You (applicant) |
Personal info, claim details |
| Part B |
Medical practitioner |
Medical certification |
Who Can Certify Part B
| Impairment |
Authorized Practitioners |
| Vision |
Optometrist, ophthalmologist |
| Hearing |
Audiologist, physician |
| Walking |
Physician, physiotherapist, occupational therapist |
| Mental functions |
Physician, psychologist |
| Feeding/dressing |
Physician, occupational therapist |
| Life-sustaining therapy |
Physician, nurse practitioner |
Part A: What You Complete
| Section |
Information Required |
| Personal info |
Name, SIN, address |
| Effects of impairment |
When it began, how it affects you |
| Transfer request |
If transferring to spouse/family |
| Signature |
Your authorization |
Part B: What the Doctor Completes
| Section |
Information |
| Diagnosis |
Medical condition(s) |
| Restrictions |
Which daily activities are affected |
| Duration |
Is it prolonged (12+ months)? |
| Severity |
Markedly restricted (90%+ of time)? |
| Professional opinion |
Signature and certification |
How to Apply
- Download from CRA website
- Request by phone: 1-800-959-8281
- Pick up at tax services office
Step 2: Complete Part A
Fill in your information. Be thorough when describing how your impairment affects daily life.
Step 3: Medical Appointment
- Book with appropriate practitioner
- Bring list of daily limitations
- Explain how condition affects you every day
- Practitioner completes Part B
Step 4: Submit to CRA
| Method |
Details |
| Online |
Through CRA My Account (if practitioner participates) |
| Mail |
Sudbury Tax Centre, 1050 Notre Dame Ave, Sudbury ON P3A 5C2 |
| Fax |
1-705-671-3994 |
Step 5: Wait for Decision
| Timeline |
Status |
| 8 weeks |
Standard processing |
| 16 weeks |
Complex cases |
| Check status |
CRA My Account |
Application Tips
Do’s
| Tip |
Why |
| Focus on bad days |
Describe worst typical day |
| Quantify restrictions |
“Takes 45 minutes vs 15 minutes” |
| Be specific |
Use concrete examples |
| Include all conditions |
Cumulative effect matters |
| Bring notes to doctor |
Help them understand daily impact |
Don’ts
| Mistake |
Why It Hurts |
| Minimize symptoms |
CRA needs to see severity |
| Assume doctor knows |
They may not understand DTC criteria |
| Leave sections blank |
CRA may deny incomplete applications |
| Exaggerate |
Must be accurate and verifiable |
If Your Application Is Denied
Common Reasons for Denial
| Reason |
Solution |
| Incomplete form |
Resubmit with complete information |
| Not markedly restricted |
Provide more detail on severity |
| Wrong practitioner |
Use authorized practitioner |
| Condition not prolonged |
Show 12+ month history |
Request for Reconsideration
- Write to CRA within 90 days
- Include new information or clarification
- Ask doctor to provide supporting letter
- Specify why original decision was incorrect
Notice of Objection
| Step |
Action |
| File within 90 days |
Of denial letter date |
| Include reasons |
Why you disagree |
| New evidence |
Additional medical documentation |
| Wait for review |
6-12 months typical |
Tax Court Appeal
As a last resort, you can appeal to the Tax Court of Canada. Consider consulting a tax professional or disability advocate.
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 or CRA My Account |
| Automatic adjustment |
CRA may adjust automatically |
Retroactive Refund Example
| Year |
Federal Credit |
Provincial (ON) |
Total Refund |
| 2016 |
$8,001 |
$4,800 |
$12,801 |
| 2017 |
$8,113 |
$4,867 |
$12,980 |
| 2018 |
$8,235 |
$4,941 |
$13,176 |
| 2019 |
$8,416 |
$5,049 |
$13,465 |
| 2020 |
$8,576 |
$5,145 |
$13,721 |
| 2021 |
$8,662 |
$5,197 |
$13,859 |
| 2022 |
$8,870 |
$5,322 |
$14,192 |
| 2023 |
$9,041 |
$5,424 |
$14,465 |
| 2024 |
$9,209 |
$5,525 |
$14,734 |
| 2025 |
$9,318 |
$5,590 |
$14,908 |
| Total |
|
|
~$138,000 |
Example only. Actual amounts depend on taxable income and province.
Conditions for Retroactive Claims
| Requirement |
Details |
| Disability existed |
In those tax years |
| Filed tax returns |
Can file late returns if needed |
| Had taxable income |
Or can transfer to family |
| T2201 approved |
With effective date backdated |
Transferring the DTC
Who Can Receive Transfer
| Relationship |
Eligible |
| Spouse/common-law |
Yes |
| Parent/grandparent |
Yes |
| Child (adult or minor) |
Yes |
| Sibling |
Yes |
| Aunt/uncle |
Yes |
| 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 |
| Person uses entire credit |
No transfer |
How to Transfer
- Complete transfer section on T2201
- Supporting person claims on their tax return
- Schedule 1 (line 31800 or 32600)
Child Disability Benefit
What It Is
An additional tax-free benefit for families with a DTC-eligible child.
| Feature |
2026 Amount |
| Maximum annual benefit |
~$3,322 |
| Payment frequency |
Monthly with CCB |
| Income-tested |
Yes |
Eligibility
| Requirement |
Details |
| Child under 18 |
With DTC approval |
| Receive CCB |
For that child |
| Income under threshold |
Phase-out at higher incomes |
RDSP Access
What DTC Approval Unlocks
| RDSP Feature |
Details |
| Contribution room |
$200,000 lifetime |
| Government grants |
Up to $3,500/year |
| Government bonds |
Up to $1,000/year |
| Carry forward |
Grants/bonds from past years |
Losing DTC Eligibility
If DTC is later revoked:
- RDSP may need to close
- Grants/bonds returned to government
- May retain own contributions
Common Questions
How long does DTC approval last?
Approval can be:
- Indefinite — for permanent conditions
- Temporary — with reassessment date (must reapply)
Can I apply for someone else?
Yes, with written authorization. Legal representatives can apply for those unable to manage their affairs.
Does DTC affect other benefits?
DTC approval does NOT affect:
- OAS/GIS
- CPP benefits
- Provincial disability supports (usually)
What if my condition improves?
If you no longer meet criteria, you should notify CRA. Using the credit when ineligible can result in repayment plus penalties.
Can I claim DTC and medical expenses?
Yes. DTC and medical expense tax credit (METC) are separate. You can claim both.
Professional Help
When to Get Help
| Situation |
Consider Professional |
| Complex medical history |
Disability advocate |
| Previous denial |
Tax professional |
| Retroactive claim |
Accountant |
| Large refund expected |
Tax lawyer |
Disability Tax Credit Consultants
Some companies specialize in DTC applications. Be aware:
- They charge fees (often % of refund)
- You can apply yourself for free
- Free help available through community organizations
Resources
| Resource |
Contact |
| CRA DTC inquiries |
1-800-959-8281 |
| Form T2201 |
canada.ca/disability-tax-credit |
| CRA My Account |
my-cra.gc.ca |
| Tax clinics (free) |
canada.ca/taxes-help |
Key Takeaways
- DTC is based on functional limitations, not specific diagnoses
- Worth $9,000–$20,000+ annually in tax savings
- Retroactive claims can exceed $50,000
- Opens access to RDSP, Child Disability Benefit, and more
- T2201 must be certified by authorized medical practitioner
- If denied, you can request reconsideration within 90 days
- Can transfer unused credits to supporting family members