RDSP Grant Guide
The government can match eligible RDSP contributions by up to 300%, depending on family income. Unused grant room can carry forward for up to 10 years. Many families miss out on thousands of dollars in support simply because the rules are not well understood.
Last reviewed: April 2026. Verify current thresholds and eligibility rules before making contribution decisions.
These are the four rules that shape most RDSP grant outcomes: government matching, bond eligibility, carry-forward room, and the cost of waiting too long.
The federal government matches RDSP contributions based on family net income. In lower-income cases, the first $500 contributed can attract a 300% match, and the next $1,000 can attract a 200% match. Contributions beyond the annual matched threshold do not generate extra grant for that year. The CDSG also has a lifetime maximum per beneficiary.
Some lower-income families may qualify for bond payments even without making a contribution. In practice, that means simply having the RDSP open and filing taxes can matter enormously. Many eligible families lose bond eligibility value because the plan was never opened in time.
Unused grant room can carry forward for up to 10 years, which means someone who started late may still be able to unlock significant government matching. That is why catch-up planning matters. The best contribution amount is often not obvious by inspection, which is exactly where a calculator becomes useful.
The RDSP has a limited eligibility window for grants and bonds. Delaying can reduce how much support is still recoverable later. Even small annual contributions can be far more valuable than waiting for a perfect year to start.
Enter the beneficiary age, family income, and current RDSP details to estimate unclaimed grant room, catch-up opportunity, and the potential cost of waiting another year.
This page is for general educational purposes only and is not licensed financial advice. RDSP rules, income thresholds, grant amounts, bond amounts, and eligibility criteria can change.
Before acting, review the current government guidance:
https://www.canada.ca/en/revenue-agency/services/tax/individuals/topics/registered-disability-savings-plan-rdsp.html