Disability Tax Credit Calculator — Estimate Your Refund
Find out how much you could receive in retroactive DTC refunds. Enter your details below for an instant estimate — no personal information required.
Takes less than 60 seconds. This is an estimate only — your actual refund depends on your specific tax situation.
Calculate Your Estimated Refund
How the DTC Is Calculated
Federal Credit
The federal DTC is 15% of the federal disability amount ($10,138 for 2024), resulting in approximately $1,470 per year.
Provincial Credit
Most provinces add a further $440–$640 per year. Ontario adds $530/yr, Alberta $560/yr, Quebec $640/yr.
Child Supplement
If you are claiming for a child under 18, an additional federal supplement of approximately $850/yr applies.
Retroactive Claim
You can claim up to 10 years retroactively. CRA reassesses your prior returns and issues a lump-sum refund.
DTC Calculator — FAQ
How is the disability tax credit calculated in Canada?
The DTC is a non-refundable tax credit calculated as 15% of the federal disability amount ($10,138 for 2024), resulting in approximately $1,470 per year federally. Most provinces add a further $440–$640 per year. For children, an additional supplement of approximately $850/yr applies.
How many years can I claim the disability tax credit retroactively?
You can claim up to 10 years retroactively from the date your condition was diagnosed or began affecting your daily life. CRA will reassess your prior tax returns and issue a lump-sum refund.
Is the disability tax credit a one-time payment?
The DTC is a retroactive lump sum for past years plus an ongoing annual credit going forward. Most new applicants receive a single retroactive refund covering multiple years, followed by an annual credit on their tax return.
How accurate is this DTC calculator?
This calculator provides an estimate based on standard federal and provincial credit rates. Your actual refund depends on your specific tax situation, years approved by CRA, province, and income. My Benefits Canada provides a free, personalized assessment to determine your exact entitlement.