CCB shared custody: how the split works for each parent

What counts as CCB shared custody?

For the Canada Child Benefit (CCB), the CRA treats you as sharing custody when the child lives with you between 40% and 60% of the time and lives with another person for the rest. The test is where the child actually lives, measured in time, not what a separation agreement calls the arrangement.

That means a court order that says "joint custody" does not automatically create CCB shared custody. Joint decision-making with the child living with one parent 75% of the time is, for CCB purposes, a primary custody situation. The parent with the child more than 60% of the time applies alone, and the other parent is not eligible.

Each parent must still meet the general conditions on their own: live with the child, be a resident of Canada for tax purposes, and hold one of the qualifying statuses. The Canada Child Benefit guide lists them in full, and newcomers can check CCB for work permit holders.

CCB joint custody vs split custody: the terms people mix up

Three phrases get used loosely, and only one of them changes how the CRA pays you. Using the CRA's own wording when you call or write avoids delays.

• Shared custody (CRA term): one child alternates between two homes, 40% to 60% with each. Both parents receive half.
• Joint custody (family law term): both parents share legal decision-making. It says nothing about living time, so the CRA still looks at where the child lives.
• Split custody (family law term): siblings are divided, for example one child lives mainly with each parent. For the CCB, each parent claims the child who lives mainly with them as the full-time recipient. Shared custody does not apply unless a child is also splitting time 40% to 60%.

Mixed families are common. A parent can receive the full amount for one child who lives with them most of the time and a half amount for another child in a shared arrangement, all in the same monthly deposit.

How the 50% calculation works, with worked numbers

The CRA does not take one family amount and cut it in half. It calculates what each parent would get if the child lived with them 100% of the time, using that parent's own adjusted family net income (AFNI), then pays 50% of that figure. A new partner's income counts in that parent's AFNI.

The example below uses the July 2026 to June 2027 rates: $8,157 a year for a child under 6, reduced by 7% of income between $38,237 and $82,847 for a one-child family, and by $3,123 plus 3.2% of income above $82,847.

Example: one child aged 4, two households

1. Parent A's AFNI is $50,000. Full-time amount: $8,157 minus 7% of $11,763 ($823.41) = $7,333.59. Half is $3,666.80 a year, about $305.57 a month.
2. Parent B's AFNI, including a new spouse, is $90,000. Full-time amount: $8,157 minus ($3,123 + 3.2% of $7,153, or $228.90) = $4,805.10. Half is $2,402.55 a year, about $200.21 a month.
3. Together the two homes receive about $505.78 a month for this child, which is less than either would get alone at the maximum. That gap is normal when incomes differ.

The reduction also depends on how many children count in each parent's family. If Parent B has two other children living there full time, Parent B's reduction uses the rate for three children before the 50% is applied. The CCB calculator can run the full-time figure; halve it to estimate a shared custody payment.

How to tell the CRA you share custody

The CRA asks each parent to report a new custody situation right away, not at tax time. Waiting usually leads to one parent being overpaid and asked to repay later, which is covered on our benefit overpayment page.

1. Confirm the living-time split. Count overnights or days over a typical month or year and keep a copy of the parenting schedule.
2. Each parent applies or updates separately, through CRA My Account (Benefits and credits) or by mailing Form RC66, Canada Child Benefits Application.
3. If a parent or partner is new to Canada or has non-resident income, add Form RC66SCH, Status in Canada and Income Information.
4. Both parents and any spouse or common-law partner file a tax return every year, even with no income, so each household's AFNI can be assessed.
5. Watch for a notice of redetermination. It shows the start month of shared custody and the new amount.

What if custody is not 50/50 or changes later

A 55/45 or 60/40 schedule is still shared custody, and each parent still receives half. There is no sliding scale that pays 60% to the parent with slightly more time. Once one parent goes above 60%, the arrangement flips to primary custody for that parent. The CRA's guide does allow for uneven months: because of illness or summer vacation schedules, the split may be 38% to 62% in a particular month. A child who is with you only every second weekend is below 40%, so you are not eligible for that child.

Common changes and what happens

• Teen moves in with one parent full time: that parent reports the change and becomes the sole recipient from the following month. The other parent's half stops.
• Summer-only or temporary change: the CRA allows a claim for a set period, such as the months a child lives with you over the summer. When the child goes back, the other parent has to reapply to restart their payments.
• Parent moves out of Canada: that parent loses eligibility as a non-resident; see CCB while outside Canada.
• Child turns 6 or 18: the rate change or end date applies to both parents' halves at the same time.

A Child Disability Benefit for an eligible child is included in the CCB payment, so in shared custody each parent's half reflects it too. The CCB itself is tax-free for both parents; is CCB taxable explains what that means at filing time.