Canada Child Benefit Grandparent Quebec: RC66 Filing Guide

The Canada Child Benefit isn't just for parents. If you're a grandparent primarily responsible for a child's care and upbringing in Quebec, you can apply for the CCB based on your actual primary-care arrangement, whether or not tutorship is finalized. Getting set up requires Form RC66 and proof of primary residence and care responsibilities.

2026 CCB Payment Rates

The CCB benefit year runs July to June, indexed for inflation each July:

July 2025 – June 2026:

• Under 6 years: up to $7,997 per year ($666.41 per month)
• Ages 6 to 17: up to $6,748 per year ($562.33 per month)
• Income reduction begins at adjusted family net income (AFNI) of $37,487

July 2026 – June 2027 (projected 2.0% indexation):

• Under 6 years: up to $8,157 per year ($679.75 per month)
• Ages 6 to 17: up to $6,883 per year ($573.58 per month)
• AFNI threshold: $38,237

These are maximum amounts. Payments decrease as family income rises, but many grandparents on fixed or modest incomes receive close to the full amount.

How to Apply: Form RC66

File Form RC66 (Canada Child Benefit Application) with the Canada Revenue Agency. The form asks for basic information about you, the child, and your caregiving arrangement.

Attach proof that you're the primary caregiver. The CRA looks for evidence that the child lives with you and that you're responsible for their daily care — things like:

• School records showing your address
• A doctor's confirmation that the child is your patient at your address
• A certified copy of the tutorship judgment (strongest proof)

You don't need a finalized tutorship order to apply. The CRA defines primary caregiver based on actual care arrangements, not legal status. But a tutorship judgment removes any ambiguity and speeds processing.

Quebec-Specific Considerations

Quebec's civil law system uses tutorship where common-law provinces use guardianship or custody. The CRA's forms reference "custody" — provide your tutorship order as evidence of authority, while CCB eligibility remains based on actual primary care.

If care began before you applied, ask the CRA whether it can assess the earlier period and what evidence it needs.

CCB and Quebec Family Allowance Are Separate

A question that comes up constantly: receiving the CCB doesn't reduce your Quebec Family Allowance (Allocation famille), and vice versa. They're paid by different governments and don't interact with each other. You should be claiming both.

For July 2026–June 2027, the CCB maximum is projected to be $8,157 for a child under 6. Combined with the 2026 Family Allowance maximum of $3,068, that is up to $11,225 before any disability supplements.

If the Other Caregiver Also Claims

When two people claim the CCB for the same child, the CRA investigates and asks for proof of primary care. A tutorship judgment is strong evidence of legal authority, but the CRA assesses who is actually primarily responsible for the child's care and upbringing.

If a parent is still claiming but no longer providing daily care, submit your evidence with Form RC66; the CRA will assess the competing care arrangements before deciding who qualifies.

Filing Tips

• File the RC66 as soon as the child moves in, even before the tutorship process is complete
• Keep copies of everything you submit
• File your own tax returns on time every year — the CRA uses your prior-year income to calculate CCB amounts
• If your income changes significantly (retirement, job loss), benefits adjust automatically when you file your next return

For step-by-step instructions on filing RC66 alongside your Quebec benefit applications, with a checklist of required documents, see the Quebec Tutorship and Family Allowance Guide.

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