Migraine may qualify for the Disability Tax Credit when it causes severe and prolonged limitations in everyday functioning that meet the Canada Revenue Agency’s requirements.
A chronic migraine diagnosis, frequent attacks or an inability to work does not automatically qualify someone for the Disability Tax Credit, commonly called the DTC.
The CRA considers how the condition affects eligible everyday activities—not the diagnosis, pain level or number of missed workdays alone.
A person with migraine may potentially qualify through a marked restriction in one eligible category or through the cumulative effect of significant limitations in two or more categories.
On This Page:
- Does Migraine Qualify?
- Relevant DTC Categories
- Episodic and Chronic Migraine
- How to Apply
- DTC Amount and Retroactivity
- If Your Application Is Denied
- Frequently Asked Questions
Does Migraine Qualify for the Disability Tax Credit?
Migraine may qualify for the DTC, but eligibility is based on its functional effects rather than the diagnosis itself.
For most DTC categories, the applicant must generally show that they:
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Are unable to perform an eligible activity or take approximately three times longer than a similar-aged person without the impairment
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Experience the restriction all or almost all of the time, generally at least 90 per cent
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Have had, or are expected to have, the impairment for at least 12 continuous months
These requirements apply even with appropriate medication, therapy and devices.
Does Chronic Migraine Automatically Qualify?
No. Chronic migraine may involve headaches on many days each month, but the number of migraine days alone does not determine DTC eligibility.
The application must explain whether the condition causes a qualifying restriction in mental functions, walking, vision or another eligible activity all or almost all of the time.
Does an Inability to Work Qualify?
Not by itself. The DTC does not assess whether you can perform your occupation.
A person may be unable to maintain reliable employment because of unpredictable migraine attacks without meeting the CRA’s requirement for severe limitations in everyday functioning.
Which DTC Categories May Apply to Migraine?
The most relevant category depends on the applicant’s particular symptoms and limitations.
Mental Functions Necessary for Everyday Life
Migraine may cause brain fog, slowed thinking, confusion and difficulty concentrating or remembering information.
Mental functions considered by the CRA include:
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Attention and concentration
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Memory
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Judgment and problem-solving
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Planning and completing necessary everyday tasks
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Understanding verbal and non-verbal information
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Regulating behaviour and emotions
Occasional brain fog during attacks may not meet the DTC criteria. The limitation must generally be severe, prolonged and present all or almost all of the time.
Walking
Vestibular migraine may cause vertigo, imbalance, nausea or difficulty navigating safely.
To qualify through walking, the applicant must generally be unable to walk or require approximately three times longer than a similar-aged person without the impairment, at least 90 per cent of the time.
Needing to remain still during occasional attacks does not necessarily satisfy this test.
Vision
Migraine aura may cause flashing lights, blind spots, blurred vision or temporary visual disturbances.
However, the CRA’s vision category uses specific measurements. Even with correction, visual acuity generally must be 20/200 or less or the field of vision must be 20 degrees or less in both eyes.
Temporary visual aura will not usually meet the vision-category criteria on its own.
Cumulative Effect of Significant Limitations
A person who does not have one marked restriction may qualify through significant limitations in two or more eligible categories.
For example, migraine may cause significant limitations involving both mental functions and walking.
To qualify through cumulative effect, the limitations must generally:
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Exist in at least two eligible categories
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Exist together all or almost all of the time
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Have lasted or be expected to last for at least 12 continuous months
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Create an impact equivalent to one marked restriction
Can Episodic Migraine Qualify for the DTC?
It can be difficult for episodic migraine to meet the DTC criteria because qualifying restrictions must generally be present at least 90 per cent of the time.
A person may experience severe and disabling attacks several times per month but function more independently between them. That pattern may support LTD benefits without meeting the DTC test.
What About Chronic Daily Migraine?
A person with chronic daily migraine may have a stronger basis for applying if severe cognitive, mobility or other eligible limitations are present nearly every day.
The medical practitioner should explain:
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How many days the limitations are present
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Which everyday functions are affected
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Whether the applicant requires help or supervision
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Whether activities take approximately three times longer
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Which limitations remain despite treatment
Do Recovery Days Count?
Migraine-related limitations may continue after the most severe pain has ended.
Post-migraine fatigue, cognitive slowing, dizziness and sensitivity may be relevant if they create qualifying limitations in an eligible activity.
The application should describe the complete attack and recovery cycle rather than counting only hours of severe headache.
How Do You Apply for the Migraine Disability Tax Credit?
The person with migraine or their legal representative completes Part A of Form T2201, Disability Tax Credit Certificate.
A qualified medical practitioner completes Part B and certifies the effects of the impairment.
A medical doctor or nurse practitioner can certify all DTC categories. A psychologist may certify mental-function limitations, while an optometrist may certify the vision category.
The applicant may use the CRA’s digital application process or mail the current paper version of Form T2201.
Focus on Function Rather Than the Diagnosis
A neurologist’s confirmation of chronic migraine may not establish DTC eligibility.
The medical practitioner should describe:
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The eligible activities affected by migraine
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The severity and frequency of the limitations
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Whether activities are impossible or take approximately three times longer
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The help, supervision or reminders required
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The effects of medication, therapy and assistive devices
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When the qualifying restrictions began
Keep a Detailed Migraine Record
Record the number of attack and recovery days, symptoms, medication, treatment response and the everyday activities affected.
The record should identify cognitive, mobility or other relevant limitations rather than simply track headache intensity.
How Much Is the Migraine Disability Tax Credit?
The DTC is not a fixed payment for having migraine. It is a non-refundable tax credit that may reduce the federal income tax paid by the eligible person or a supporting family member.
For 2026, the federal disability amount is $10,341. This provides a maximum federal tax reduction of approximately $1,448, depending on the person’s tax circumstances.
Provincial or territorial disability amounts may provide an additional tax reduction.
Can the DTC Be Retroactive?
Potentially. The CRA’s notice of determination identifies the years for which the applicant is approved.
If approval covers previous years, eligible tax returns may generally be adjusted going back as far as 10 years.
What Other Programs Can DTC Approval Affect?
Depending on the person’s circumstances, DTC approval may help provide access to programs such as:
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The Registered Disability Savings Plan
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The Canada Disability Benefit
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The Canada Workers Benefit disability supplement
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The Child Disability Benefit
Each program has additional eligibility requirements.
What If a Migraine DTC Application Is Denied?
The CRA will issue a notice of determination explaining why the DTC application was denied.
Common problems may include:
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The application focuses on migraine frequency rather than eligible functional limitations
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It describes an inability to work rather than everyday functioning
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The 90-per-cent requirement is not addressed
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Aura is presented as a vision restriction without meeting the CRA’s measurements
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The medical practitioner provides brief or general answers
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Cumulative limitations are listed without explaining their combined effect
Request a Review or Submit New Information
An applicant may ask the CRA to review its decision and provide new or updated medical evidence.
The new information should respond directly to the reasons in the notice of determination.
File an Income Tax Objection
An applicant may also be able to file a formal income tax objection within 90 days of the date on the notice of determination.
Submitting additional information does not necessarily extend an objection deadline. Review the notice promptly.
DTC vs. LTD and CPP Disability for Migraine
The Disability Tax Credit, long-term disability and CPP Disability use different eligibility tests.
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DTC: Considers severe and prolonged limitations in eligible everyday activities.
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Long-term disability: Considers whether you can perform your occupation or another suitable occupation under an insurance policy.
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CPP Disability: Considers whether a severe and prolonged disability regularly prevents substantially gainful employment.
A person may qualify for LTD benefits because unpredictable attacks prevent reliable attendance without qualifying for the DTC.
A DTC denial also does not determine whether an insurance company should approve or continue a disability claim.
For information about employment-related benefits, read our guide to migraine disability claims in Canada.
Frequently Asked Questions About Migraine and the DTC
Does migraine automatically qualify for the Disability Tax Credit?
No. DTC eligibility is based on severe and prolonged limitations in eligible everyday activities—not the migraine diagnosis alone.
Does chronic migraine qualify for the DTC?
Potentially. The applicant must still show that migraine causes a marked restriction or qualifying cumulative limitations all or almost all of the time.
Does migraine aura qualify under vision?
Usually not on its own. The CRA’s vision category uses specific measurements involving visual acuity or field of vision in both eyes.
Can migraine qualify through mental functions?
Potentially. Cognitive limitations must be severe, prolonged and generally present at least 90 per cent of the time.
Can episodic migraine qualify?
It may be difficult when qualifying limitations occur only during occasional attacks because the CRA generally requires them to exist all or almost all of the time.
Who completes Form T2201?
The applicant or legal representative completes Part A. A qualified medical practitioner completes Part B.
Can the DTC be retroactive?
Potentially. Approved applicants may be able to adjust eligible tax returns going back as far as 10 years.
Were Your Migraine Disability Benefits Denied?
The Disability Tax Credit is separate from private disability insurance and CPP Disability benefits.
If migraine prevents you from working and your short-term or long-term disability benefits have been denied or cut off, Samfiru Tumarkin LLP can review the insurer’s decision.
Our disability lawyers represent people with denied disability claims throughout Canada, excluding Quebec.
Contact us for a free consultation about a denied or terminated disability insurance claim.