Strategies to Maximize the Canada Child Disability Benefit
Direct answer
Canada Revenue Agency · Government of Canada · Verified 2026-09-28
- Maximum annual CDB (July 2026 to June 2027)
- $3,480 per eligible child
- Canada Revenue Agency
Guide values reviewed .
Guide values reviewed . Program amounts and eligibility can change; confirm them with the administering agency.
CRA child disability benefit amounts2026–27 maximum and income threshold re-checked August 8, 2026.
Program facts at a glance
Guide values reviewed 2026-09-28
Program facts and sources
| Fact | Value | Source |
|---|---|---|
| CDB clawback income threshold | $82,847 adjusted family net income | Canada Revenue Agency |
| Maximum retroactive DTC/CDB claim | Not yet confirmed against the official amount | We are still checking the source for this figure |
| Maximum Canada Disability Savings Grant | $70,000 lifetime | Employment and Social Development Canada |
Retroactive CDB Claims
If your child was eligible for the DTC in earlier years but you never applied, you may be able to ask the CRA to approve those earlier years. The CRA says the DTC can be claimed back up to 10 years. The CDB depends on DTC approval, so a past approval is what opens earlier CDB years.
The CRA says that for a first-time CDB recipient it calculates the current benefit year and the two previous benefit years automatically. A benefit year runs from July to the following June. For years before that, send a written request to your CRA tax centre.
The amount depends on each benefit year, adjusted family net income, the months your child was eligible, and whether you received the Canada child benefit. Do not estimate a lump sum from the current maximum alone. Ask the CRA, or a qualified tax professional, about your own years.
Adjusted Family Net Income
From July 2026 to June 2027, the CDB starts to decrease when adjusted family net income is more than $82,847. The reduction is 3.2% of income above that amount for one eligible child and 5.7% for two or more eligible children.
Moving income between spouses usually does not reduce combined adjusted family net income. Business allocations are also limited by tax law.
Use only lawful deductions that apply to your return. Ask a qualified tax professional before making tax-planning decisions for CDB.
RDSP Coordination
The Registered Disability Savings Plan (RDSP) is a separate program but works alongside the CDB. Children approved for the DTC are eligible for the RDSP. The federal government matches RDSP contributions through the Canada Disability Savings Grant.
Families may choose to contribute CDB funds to an RDSP. Grants depend on contributions, income, age, available entitlement, and program rules. A deposit does not guarantee a match.
The Canada Disability Savings Bond is separate from the Grant. It may be available without personal contributions, depending on income and eligibility.
Evidence and sources
Canada Revenue Agency
Child Disability Benefit page (canada.ca/en/revenue-agency/services/child-family-benefits/child-disability-benefit.html): amounts for July 2026 to June 2027, retroactive rules and the income threshold
Government of Canada
Registered Disability Savings Plan — Grants and Bonds (canada.ca/rdsp)
Frequently asked questions
Possibly. The DTC can be approved for earlier years, and the CRA says the CDB then follows DTC approval and Canada child benefit eligibility. For a first CDB payment the CRA calculates the current and two previous benefit years on its own. For earlier years, send a written request to your CRA tax centre. The CDB is tax-free. What you are owed depends on your own years and income.
No. RDSP withdrawals do not count as income for CDB calculation purposes. The two programs are designed to work together. RDSP income also does not affect ODSP, OAS, or GIS.
It can help some families, but a deposit does not automatically trigger a grant. Check contribution room, income, age, grant entitlement, and repayment rules first.
Where the waitlist stands
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Related pages
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- Estate planning for Ontario autism families: wills, trusts, guardianship, RDSP, and ODSP-compatible strategies to protect your child's future.
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