Direct answer
Quick AnswerTo qualify for the Disability Tax Credit (DTC), a medical professional must certify on **Form T2201** that your child has a "marked restriction" in at least one basic activity of daily living or "prolonged" impairment in multiple areas. [CRA] For autism, this most often involves significant challenges in **social interaction, communication, or executive function** that are present at least 90% of the time.
The DTC is a non-refundable tax credit that helps people with disabilities and their supporting family members reduce the amount of income tax they may have to pay. For children with autism, the application focuses on how the diagnosis affects their ability to perform daily tasks compared to peers of the same age. It is also the gateway to the Registered Disability Savings Plan (RDSP).
A family with a 5-year-old child who is non-verbal and requires constant supervision for safety applied for the DTC. Their pediatrician completed the T2201 form, detailing how the child's communication and social impairments constitute a "marked restriction." Once approved, the family was able to claim the disability amount on their taxes and open an RDSP with government matching grants.
Canada Revenue Agency (CRA)
Verified Source (2026)
Autism Ontario
Verified Source (2026)
Commitment to Accuracy: Our data is verified against official government reports (FAO, MCCSS), peer-reviewed scientific literature, and accessible public records. Last updated: March 24, 2026.
Written by Spencer Carroll
Founder & Autism Advocate