The Child Disability Benefit: Money Parents Are Already Owed

Every week I talk with parents who are doing everything they can for their child. They are booking appointments, filling out forms, advocating at school, and quietly carrying costs most people never see. So when I tell a family there may be money sitting with the government that already belongs to them, the room usually goes quiet. Then comes the question I hear again and again: how did we not know about this? The child disability benefit is one of the most overlooked supports in Canada, and for many families, learning about it feels like finding a cheque in a coat pocket. Except this one can be worth thousands.

What the child disability benefit actually is

The child disability benefit, often shortened to CDB, is a tax free monthly payment for families caring for a child under 18 who is approved for the disability tax credit, also called the DTC. It is not a loan, it is not a grant you have to compete for, and it is not something you pay back at tax time. It is a benefit built into our system because raising a child with a disability costs more, plain and simple, and the government recognizes that reality, at least in this one practical way.

One point of confusion is worth clearing up right away. The child disability benefit is different from the Canada Disability Benefit, a separate program for working age adults. Similar names, completely different programs. The CDB is for families with children, and it is paid together with the Canada child benefit, the CCB payment many parents already receive each month. If your child is approved for the DTC and you receive the CCB, the CDB is generally added to that same payment. You can read more in my plain English guide, the disability tax credit explained.

How much are we talking about?

At the full amount, the child disability benefit is worth about $3,300 a year per eligible child, and that figure is indexed, which means it rises a little over time with inflation. For the July 2024 to June 2025 benefit year, the maximum was $3,322 for the year. Spread across twelve months, that works out to a meaningful addition to the family budget, money that can go toward therapy not covered elsewhere, specialized equipment, respite care, transportation, or simply breathing room in a tight month.

It is important to know the benefit is income tested. Above a certain family income threshold, the amount phases down gradually rather than stopping all at once, and the exact thresholds change over time. So two families with approved children may receive different amounts, and that is normal. What matters is not the exact dollar figure on day one. What matters is whether the benefit is flowing at all, because for a surprising number of families I meet, it is not, and nobody ever told them to check.

The part almost everyone misses: back payments

Here is where this gets genuinely exciting, and honestly, a little frustrating. The child disability benefit follows the DTC approval. When the Canada Revenue Agency approves a child for the disability tax credit, that approval often covers past years, sometimes many of them, because the child's condition did not start the day the paperwork was filed. When the approval is backdated, the family may also be owed child disability benefit payments for those past years when the child was approved but the benefit was never paid.

In many cases, a written request to the CRA can trigger back payments, generally reaching back up to 10 years, matching the period covered by the DTC claim. A family whose child's approval goes back several years could be looking at a substantial lump sum, not because they found a loophole. Because the money was theirs all along and the system does not always connect the dots on its own. If your child's approval was backdated, ask for the back payments explicitly, in writing, and keep a copy of everything. If you have just received an approval, I walk through the first steps in DTC approved, now what.

Why families miss it in the first place

I want to be clear about something: families do not miss this benefit because they were careless. They miss it because the system is complicated and nobody hands parents a map. The DTC application itself is a long process. By the time approval arrives, many parents are relieved, exhausted, and focused on the tax refunds the credit itself can generate. The child disability benefit rides quietly inside the Canada child benefit payment, so it is easy to assume it is either included automatically or not available at all.

In most cases, there is no separate application once the DTC and the CCB are both in place. The benefit should start flowing on its own. But should and does are two different words, and paperwork gets missed. That is why I encourage every family with a DTC approved child to take one simple step: confirm with the CRA that the child disability benefit is actually being paid. Check your CCB statement, and if the CDB is not listed, ask why. A short conversation can uncover years of missed support.

Money that was always meant for your family

I do this work because I believe families raising children with disabilities deserve every bit of support our country has promised them, without having to stumble onto it by accident. The child disability benefit is not a windfall and it is not charity. It is a recognition that your family's costs are real, your child's needs are real, and your effort, much of it invisible to everyone else, matters. If this article has you wondering whether there is money your family has been owed all along, that wondering is worth following up. Parents like you are the strongest advocates I know, and sometimes the win is simply learning what was yours from the start.

For the bigger picture, read our guide to the Canada Disability Benefit, the companion benefit for adults aged 18 to 64.