If you have a child or adult family member with a disability, there is a very good chance you are leaving significant money on the table every year — not because you do not care, but because no one has explained the Disability Tax Credit clearly, or helped you connect it to the broader picture of your family’s financial and support planning.
This post is my attempt to change that. I work with families navigating both the Developmental Services system in Ontario and the complexities of caring for a loved one with a disability — and the DTC comes up in almost every conversation. Let me break it down.
What Is the Disability Tax Credit?
The Disability Tax Credit (DTC) is a non-refundable federal tax credit that reduces the amount of income tax a person with a disability — or their supporting family member — has to pay. For 2024, the DTC amount is $9,428 for adults and $5,500 for children under 18, with the Child Disability Benefit (CDB) paid separately as part of the Canada Child Benefit.
If the person with the disability does not have enough taxable income to use the credit themselves, it can often be transferred to a spouse, parent, or other supporting family member. This is significant — many families do not realize they can claim it at all if their family member does not earn income.
Who Qualifies?
Eligibility is based on having a severe and prolonged impairment in one or more of the following areas: vision, speaking, hearing, walking, bowel or bladder functions, feeding, dressing, or mental functions necessary for everyday life. “Prolonged” means the condition has lasted or is expected to last at least 12 months.
Importantly, the DTC is not limited to visible or physical disabilities. Many people with autism, ADHD (in more severe presentations), intellectual disabilities, mental health conditions, chronic illness, and acquired brain injuries qualify. The key is that the impairment must markedly restrict daily functioning, even with the use of appropriate therapy, medication, or devices.
To apply, a qualified medical practitioner must complete Form T2201 — the Disability Tax Credit Certificate — certifying the nature and impact of the impairment. Your family doctor, psychiatrist, psychologist, nurse practitioner, or relevant specialist can complete this form depending on the type of disability.
The RDSP: Why the DTC Is Just the Beginning
Qualifying for the DTC is also the gateway to the Registered Disability Savings Plan (RDSP) — and this is where the long-term financial impact becomes truly significant.
The RDSP is a tax-sheltered savings account designed to support the long-term financial security of people with disabilities. The federal government will contribute Canada Disability Savings Grants (CDSGs) of up to $3,500 per year (up to $70,000 lifetime) and Canada Disability Savings Bonds (CDSBs) of up to $1,000 per year (up to $20,000 lifetime) — based on family income and contributions. Families with lower incomes receive the bond with no contribution required at all.
The earlier an RDSP is opened, the more government money accumulates. Many families with a child who was diagnosed in early childhood are not opening RDSPs until the teen years — or never — and are missing out on tens of thousands of dollars in government contributions.
Retroactive Claims
If your family member has had a disability for years but you never applied for the DTC, it is not too late. You can file an amended tax return for up to 10 previous years to claim the credit retroactively. For families who have been managing a disability for a decade without claiming, this can mean a substantial lump sum.
Navigating This Alongside the Developmental Services System
For families whose adult children are navigating the Ontario Developmental Services system — applying for Passport funding, supported living, or day programs — the DTC often intersects with eligibility and financial planning in ways that are not always clearly explained by service providers.
As a case manager who works directly with adults in care and their families through the DS system, I can help you connect these pieces: understanding your entitlements, navigating the application processes, and making sure the financial and support planning for your adult child is as strong as it can be.
A Quick Checklist
- Has your family member ever been assessed for DTC eligibility?
- If approved, has the credit been transferred to a supporting family member if needed?
- Has an RDSP been opened and are you receiving the government grants and bonds?
- If the disability has existed for years, has a retroactive claim been considered?
- Are you connected with a financial planner who understands disability planning?
If the answer to any of these is “no” or “I am not sure,” it is worth a conversation.
I offer consultations for families navigating disability supports, Developmental Services, and the financial planning questions that come with caring for a loved one with a disability. If you are not sure where to start, start with a free conversation.