Quick Answer
Yes, post-traumatic stress disorder can qualify for the Disability Tax Credit Canada in 2026 under the mental functions category. PTSD often markedly restricts memory, judgment, adaptive functioning, and emotional regulation. Veterans and first responders with VAC or workplace records of PTSD have stronger documentation paths.
How PTSD Qualifies for the DTC
PTSD qualifies under CRA's mental functions necessary for everyday life category. CRA assesses:
- Memory and ability to recall and use information for daily tasks
- Problem-solving, judgment, and goal-setting capacity
- Adaptive functioning (managing daily routines, self-care, finances, personal safety)
- Social and interpersonal functioning
Severe PTSD commonly impairs all of these through hypervigilance, emotional dysregulation, avoidance behaviors, dissociative episodes, and the inability to function in public or social settings.
The PTSD Severity Threshold
Mild to moderate PTSD that responds well to treatment may not meet CRA's marked restriction standard. The conditions that are more likely to qualify include:
- Complex PTSD (C-PTSD) from repeated or prolonged trauma
- PTSD that has not responded to multiple treatment modalities
- PTSD causing the person to be unable to leave their home or function in public
- PTSD combined with major depressive disorder or other comorbidities that together cause marked restriction
- PTSD requiring ongoing inpatient or intensive outpatient care
Veterans and First Responders
Veterans, police officers, paramedics, firefighters, and corrections workers are among those most commonly diagnosed with occupational PTSD. For these individuals:
- Veterans Affairs Canada (VAC) records and disability pension ratings serve as valuable supporting evidence
- Operational Stress Injury (OSI) clinic records provide objective professional documentation
- Workers' compensation (WSIB, WCB) approvals for PTSD provide third-party confirmation of functional restriction
- Medical retirement records showing inability to continue employment due to PTSD are highly persuasive
Key Documentation for PTSD DTC
- Psychiatrist or psychologist detailed report on functional impairment in daily activities
- PTSD severity scale scores (PCL-5, CAPS) from formal assessments
- Records of hospitalizations, crisis interventions, or emergency mental health contacts
- Documentation of treatment history, including CBT, EMDR, medication trials, and outcomes
- VAC records, disability pension, or operational stress injury documentation (for veterans and first responders)
- Workers' compensation claims or employer disability insurance approvals
- Evidence of inability to maintain employment or social functioning
2026 DTC Amounts for PTSD
If approved: federal credit $1,481 per year. Combined with provincial: $2,080 to $3,741 per year. Retroactive claims reaching back 10 years can result in $14,000 to $37,000 or more in total credits.
Real post-traumatic stress disorder Filing Scenario
The following example is illustrative. It describes a typical filing flow and does not predict any individual outcome.
A veteran in Halifax with service-related post-traumatic stress disorder met with his Veterans Affairs Canada psychiatrist for Part B certification. The psychiatrist documented mental-functions restrictions affecting concentration, sleep, and routine social functioning, supported by VAC treatment records and a clear diagnosis history dating to active service. Part B addressed the 90-percent threshold with specific behavioural examples (hypervigilance during routine errands, dependence on a partner for crowded environments). The Notice of Determination arrived 10 weeks after submission, approving the DTC retroactive to the year of VAC initial diagnosis.
Documentation That Works for post-traumatic stress disorder Part B
What worked in this Part B: leveraging VAC treatment records as supporting documentation, plus specific behavioural examples in non-clinical settings. PTSD claims are strongest when the practitioner can point to longitudinal treatment records and concrete daily-life examples. See our cumulative effects rule guide for the technical framework CRA reviewers apply, and our DTC denied appeal guide if a previous application was rejected.
Frequently Asked Questions
No. PTSD qualifies only when it causes a marked restriction in mental functions 90% or more of the time. Mild PTSD managed effectively with therapy and medication may not meet the threshold. Severe PTSD that significantly impairs daily functioning despite treatment is much more likely to qualify.
Yes. Veterans Affairs Canada records, pension disability ratings, and clinical documentation from OSI clinics are all valuable supporting evidence. They do not automatically guarantee DTC approval (different criteria apply), but they significantly strengthen the functional limitation evidence CRA needs to see.
A psychiatrist, psychologist (for the mental functions section specifically), or physician familiar with your PTSD can complete the T2201. The certifier should be someone who has assessed your functional limitations, not just confirmed your diagnosis. A therapist who only provides treatment but has not formally assessed your functional capacity may be less effective than a psychiatrist or psychologist who has documented both diagnosis and function.