RESP contributions and CESG catch-up: the 2026 rules

By GrowThenDraw Editorial Team · Updated August 11, 2026 · 13 min read · Editorial policy

RESP advice is often compressed to ‘contribute $2,500 a year.’ That is a useful default, but it is not a complete room calculation. A beneficiary can have unused Basic CESG entitlement, a limited number of eligible years left, a contribution history that affects ages 16 and 17, and a lifetime contribution cap that makes part of the grant impossible to reach.

This guide explains the federal mechanics behind GrowThenDraw's single-beneficiary calculator. Use actual promoter and Government of Canada records. The examples are educational, not a determination of grant eligibility or investment advice.

Basic CESG: the ordinary $2,500 contribution

Basic CESG is 20% of eligible contributions. A $2,500 contribution can therefore receive $500. A fresh $500 of Basic CESG entitlement is normally created for each eligible year through the end of the calendar year the beneficiary turns 17.

Unused Basic CESG entitlement can carry forward. When room exists, the maximum Basic CESG paid in one year is $1,000, normally reached with a $5,000 contribution. It is still a 20% grant: $500 uses current entitlement and up to another $500 uses earlier unused entitlement.

Worked catch-up example

Suppose a beneficiary begins 2026 with $1,000 of unused Basic CESG entitlement before the new $500 for 2026. That makes $1,500 available. A $5,000 contribution can receive the annual maximum $1,000 of Basic CESG, leaving $500 to carry into 2027.

If only $2,500 is contributed, Basic CESG is $500 and $1,000 remains after the year. If $8,000 is contributed, the Basic CESG is still capped at $1,000 for the year. The extra contribution can use lifetime RESP contribution room but does not create more Basic CESG that year.

Additional CESG uses income and cannot be caught up

For 2026, Additional CESG adds 20% on the first $500 contributed when adjusted family income is at most $58,523. It adds 10% when income is above $58,523 through $117,045, and zero above that range. The maximum addition is therefore $100 or $50 for the year.

Unlike Basic CESG entitlement, an unused Additional CESG amount does not carry forward. Family income and thresholds can change, so a multi-year projection that holds today's band constant is a scenario, not an eligibility forecast.

Do not miss the age-16/17 gate

CESG can be paid at ages 16 and 17 only when one of two contribution-history tests was met before the end of the calendar year the beneficiary turned 15. The first is at least $2,000 contributed and not withdrawn. The second is at least $100 contributed and not withdrawn in any four earlier years.

A family starting in the age-15 year may still satisfy the $2,000 test before year-end. A family discovering the issue after the age-15 deadline cannot create qualifying history retroactively. That is why the calculator asks for both historical records instead of assuming the gate from the current balance.

The two lifetime caps interact

RESP contributions across all plans for one beneficiary have a $50,000 lifetime limit. Basic and Additional CESG together have a $7,200 lifetime limit. There is no general annual contribution limit, but contributing above the lifetime limit can create a 1% monthly excess tax.

A late starter can therefore have theoretical unused grant entitlement but too little contribution capacity or too few eligible years to collect all $7,200. The calculator's maximum-grant solver respects both limits and reports grant dollars that remain unreachable under a $5,000-a-year grant-efficient plan.

Canada Learning Bond and provincial incentives

The Canada Learning Bond does not require a personal contribution. It can begin with $500 and add $100 for later eligible years, to a $2,000 maximum, including retroactive eligibility. The official estimator and promoter should determine the amount; GrowThenDraw includes only a confirmed unclaimed figure entered by the visitor.

Provincial incentives can apply, including the British Columbia Training and Education Savings Grant and Quebec Education Savings Incentive. They have different rules and are not silently mixed into the federal CESG calculation.