How This DTC Calculator Works
Our Disability Tax Credit calculator uses CRA-indexed 2026 federal and provincial rates to estimate how much credit you may receive. All calculations happen instantly in your browser, no data is sent to any server.
Federal DTC Calculation (2026)
- Base federal disability amount: $9,872
- Federal tax rate: 15%
- Federal credit value: $9,872 × 15% = $1,481
- Child supplement (under 18): $5,758 × 15% = $864 additional
Provincial DTC Calculation
Each province sets its own disability amount and lowest marginal tax rate. Provincial credit = provincial disability amount × provincial rate. This ranges from $599 (Ontario) to $2,260 (Québec) in provincial credit alone.
Retroactive Calculation
If you were eligible in prior years but didn't claim, you may file T1-ADJ adjustments for up to 10 years. The calculator multiplies annual totals by years selected, actual retroactive amounts depend on your income in each prior year.
ℹ️ Non-Refundable Credit Note
The DTC is non-refundable, meaning it reduces your tax payable to zero but cannot generate a cash refund on its own. However, unused credit can be transferred to a supporting person. Retroactive claims apply the credit against taxes paid in each prior year.
2026 DTC Rates by Province
*Provincial rates are 2026 estimates based on CRA indexing. Quebec requires a separate Revenu Québec provincial application. Federal credit of $1,481 applies to all provinces.
Next Steps After Calculating
- Confirm your condition qualifies using our eligibility guide.
- Complete Form T2201 with your medical practitioner.
- Submit to CRA and wait for approval (typically 6-8 weeks; times vary).
- Claim the credit on line 31600 of your federal return.
- For retroactive claims, file T1-ADJ adjustments for eligible prior years.