Disability Tax Credit Canada Calculator (2026 Federal Amounts)
Federal Disability Tax Credit on the latest amounts published by the CRA (2026): disability amount $10,341, plus a supplement of up to $6,032 for someone under 18. The credit is the amount multiplied by the lowest federal tax rate, 14% for 2026. The 2027 amounts are not published yet, so this page uses 2026. Provincial credits are separate and are not calculated here.
Federal Amounts
The CRA's indexed amounts for 2026 are a disability amount of $10,341 and a maximum supplement for children with disabilities of $6,032. For 2025 they were $10,138 and $5,914. The amount is claimed on line 31600 of the return.
How the Credit Is Worked Out
Non-refundable credits are multiplied by the lowest federal tax rate, which is 14% for 2026. An adult therefore gets $10,341 × 14% = $1,447.74 off federal tax. A child under 18 with the full supplement gets ($10,341 + $6,032) × 14% = $2,292.22.
The Under-18 Supplement
The supplement applies to a person under 18 at the end of the year. It may be reduced if someone claimed child care expenses or attendant care expenses for the person; the 2026 threshold for those expenses is $3,533. This calculator shows the maximum supplement.
What Is Not Included
Each province and territory has its own disability amount and credit rate, and Quebec runs a separate system. Those are not calculated here. Eligibility for the credit itself is decided by the CRA on Form T2201.
Source and Disclaimer
2026 figures; the CRA had not published 2027 amounts when this page was last updated.
Source: CRA — Indexation adjustment for personal income tax and benefit amounts and 2026 tax rates and income brackets. Last updated: October 2026.