Disability Tax Credit for Children vs Child Disability Benefit

At a glance

If your child qualifies for the Disability Tax Credit (DTC), your family may benefit in two separate ways: a reduction in income tax through the disability amount and additional tax-free monthly payments through the Child Disability Benefit (CDB). They are related, but they are not the same benefit.

The important first step is a CRA-approved T2201 Disability Tax Credit Certificate for the child. Then look at which parent may claim unused tax credits and whether the family qualifies for payments under the Canada child benefit system.

What does DTC approval actually mean?

DTC approval confirms that CRA accepts the medical eligibility for the years listed in its decision. The DTC is a non-refundable tax credit: it offsets income tax otherwise owed, rather than paying out a fixed monthly amount.

If the child has little or no income tax owing, a supporting family member may be able to use an unused disability amount, subject to the transfer rules. Approval does not mean every family automatically receives the same dollar value.

What is the Child Disability Benefit?

The CDB is a tax-free monthly benefit for qualifying families caring for a child under 18 who is eligible for the DTC. It is paid with the Canada child benefit, and the amount depends on adjusted family net income.

For the July 2026–June 2027 benefit period, the maximum is $3,480 per eligible child, or $290 per month, before any income-based reduction. The benefit period is tied to the family's 2025 tax-return information.

Example: one family, two separate calculations

Suppose Maya's nine-year-old child receives DTC approval beginning in 2026. Maya earns $48,000 and has sufficient income tax for a transfer claim, while the child has no tax payable. A properly calculated unused disability amount may reduce Maya's tax.

Separately, the family's CDB payment depends on adjusted family net income and the CRA's benefit calculation. You cannot simply multiply the DTC disability amount by a tax rate and treat the result as an extra monthly cash benefit.

What should parents do after approval?

Check the approved DTC years and confirm CRA has current family and child information. File both parents' income-tax returns, even if one has little income, because benefit calculations rely on tax return information.

Review prior years too. If the certificate covers earlier tax years, an adjustment may yield a tax credit for eligible years; CRA may also reassess past CDB entitlement where applicable. Keep the notice of determination.

Common mistakes

Do not confuse an approved medical certificate with a promise of a refund. Do not claim the same unused amount twice, and do not assume an expired certificate continues indefinitely.