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40%–60% Shared Custody & 50% CCB Split

CCB Shared Custody Benefit Rules Guide 2026

Complete guide to CCB shared custody: CRA's 40%–60% parenting-time test, mandatory 50% payment split, each parent's AFNI calculation, separation reporting and custody evidence.

1. What Counts as Shared Custody for CCB?

For Canada Child Benefit purposes, CRA considers a child to be in shared custody when the child lives with two individuals at different addresses on an approximately equal basis. CRA's administrative threshold is generally 40% to 60% of the child's time with each parent or other eligible individual. A one-week/one-week schedule and a four-days/three-days weekly arrangement are examples of shared custody. The percentage is based on the child's actual living and care arrangement, not simply the wording of a court order. CRA can consider the practical parenting schedule and may request evidence. Temporary fluctuations can occur: CRA guidance recognizes that circumstances such as illness or school vacations can temporarily result in a split such as 38%/62% without necessarily changing the underlying shared-custody arrangement. If the child lives with one parent more than 60% of the time, that parent is generally considered to have full custody for CCB purposes. If the child lives with a parent less than 40% of the time and primarily with the other individual, that parent is generally not an eligible individual for the CCB for that child.

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40%–60% Rule: Each parent generally has shared custody when the child lives with them between 40% and 60% of the time.
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Approximately Equal: CRA looks at the practical living and care arrangement rather than relying solely on a label such as 'joint custody.'
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More Than 60%: The parent with the child more than 60% of the time is generally treated as having full custody.
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Less Than 40%: A parent with the child less than 40% of the time is generally not an eligible individual for CCB for that child.
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Temporary Variations: A short-term variation caused by events such as illness or vacation does not necessarily change the custody classification.
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Other Eligible Individuals: Shared custody can involve another individual, not only a separated parent, where the legal requirements are satisfied.

Actionable Living & Housing Checklist

  • Record the child's actual overnight and care schedule.
  • Compare the practical arrangement with the 40%–60% CRA threshold.
  • Keep the parenting agreement, court order and calendar records.
  • Update CRA promptly when the custody arrangement changes.
  • Apply through CRA's child-benefit process when the shared-custody arrangement begins.

2. How CRA Calculates CCB in Shared Custody

When CRA determines that a child is in shared custody, each parent receives 50% of the CCB amount that the parent would have received if the child lived with them full-time. CRA does not split the benefit according to the actual parenting percentage. For example, a 45%/55% arrangement does not produce a 45%/55% CCB split. Each parent's 50% amount is calculated separately using that parent's own adjusted family net income (AFNI). If a parent has a spouse or common-law partner in the relevant benefit period, that parent's family-income calculation can include the spouse or common-law partner's income under the normal CCB rules. Therefore, describing the calculation simply as each parent's 'individual net income' is incomplete. Because each parent gets a separate calculation, the two 50% payments can be different in dollar terms. A lower-income parent may receive a larger 50%-share of the full-custody benefit available under their own AFNI calculation than the higher-income parent receives under theirs.

Parenting ArrangementCRA ClassificationPayment StructureIncome Basis
Parent A >60%, Parent B <40%Generally full custody for Parent AParent A generally receives the full calculated CCB; Parent B is generally not eligibleParent A's applicable AFNI
Parent A 50%, Parent B 50%Shared custodyEach parent receives 50% of their own full-custody entitlementEach parent's applicable AFNI, including a spouse/common-law partner where relevant
Parent A 45%, Parent B 55%Shared custodyEach parent receives 50%, not 45%/55%Each parent's applicable AFNI
Parent A 40%, Parent B 60%Shared custodyEach parent receives 50%Each parent's applicable AFNI
Parent A <40%, Parent B >60%Generally full custody for Parent BParent B generally receives the full calculated CCB; Parent A is generally not eligibleParent B's applicable AFNI

3. Separation Rules and When to Notify CRA

A person should not report a marital-status change to CRA as a separation until they have been living separate and apart from their spouse or common-law partner for more than 90 consecutive days because of a breakdown in the relationship. The 90-day rule is important, but it does not mean that the parent should wait indefinitely after the 90 days have passed. Once the person has been separated for more than 90 consecutive days, the marital-status change should be reported to CRA by the end of the following month. CRA can be notified through My Account, by phone or with Form RC65, Marital Status Change. The CCB is generally recalculated from the month following the month in which marital status changed, subject to CRA's specific assessment rules. The separation date and custody arrangement should therefore be recorded carefully because both can affect the benefit calculation.

Key Rule Benchmark
Do Not Report Too Early: CRA says not to report the separation until you have been separated for more than 90 consecutive days.
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Reporting Deadline: After the more-than-90-day condition is met, notify CRA by the end of the following month.
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Form RC65: Marital status can be reported through CRA's online services, by phone or using Form RC65.
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Custody Is Separate: A marital-status change and a shared-custody determination are related but are not identical tests.
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Payment Recalculation: CRA recalculates benefits using the new marital status and applicable AFNI.
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Keep the Exact Date: Record the date you began living separate and apart because it determines when the 90-day period is completed.

4. Evidence CRA May Use to Determine Shared Custody

CRA may ask for supporting information when parents provide different custody claims or when the actual living arrangement is unclear. The evidence should establish where the child lives, how much time the child spends with each parent and which adults are responsible for the child's care and upbringing. A court order or formal parenting agreement can be useful, but it is not the only evidence that CRA can consider. CRA can review information such as school or daycare records, medical or dental records, correspondence from professionals, calendars, transportation arrangements and other evidence showing the child's actual living arrangement. A parent should not assume that a court order automatically determines CCB entitlement. The CRA assesses the facts for CCB purposes and can consider the practical arrangement, especially where the actual parenting schedule differs from the written order.

Key Rule Benchmark
Court Orders: Can provide evidence of the formal custody arrangement.
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Separation Agreements: Can document parenting responsibilities and schedules.
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School/Daycare Evidence: Can help establish where the child regularly lives and who handles care.
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Medical Records: May support evidence of the child's address and care arrangements.
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Calendar Records: Detailed parenting calendars can help demonstrate the actual percentage of time.
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Practical Arrangement Matters: CRA can consider the real-life arrangement when it differs from formal documentation.

Actionable Living & Housing Checklist

  • Keep a dated parenting calendar.
  • Keep copies of court orders and parenting agreements.
  • Retain school/daycare correspondence that identifies the child's living arrangement.
  • Keep medical, dental or activity records where they help establish actual care.
  • Provide CRA only the evidence requested and keep copies of anything submitted.

5. Can One Parent Receive 100% of CCB When the Other Parent Does Not Apply?

If CRA considers a child to be in shared custody, the statutory shared-custody calculation is 50% for each eligible parent. A parent cannot lawfully create a 100% entitlement merely because the other parent does not initially apply. CRA's published guidance warns that if one parent received 100% because the other shared-custody parent did not apply and that other parent later applies, the first parent may have to repay retroactively 50% of the child benefit payments received. Parents should therefore report the shared-custody arrangement and have each eligible parent apply. CRA then calculates each parent's half using their own applicable AFNI. The resulting two payments may differ because the income calculations can differ. The same principle means that a parent should not alternate between claiming 100% of the CCB for six-month blocks when the child remains in a qualifying shared-custody arrangement. The CCB system does not replace the shared-custody 50% rule with a voluntary rotation of the full benefit.

Key Rule Benchmark
Shared Custody Means 50% Each: CRA does not use a voluntary 100%/0% rotation for a qualifying shared-custody arrangement.
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Failure to Apply Does Not Create Full Entitlement: One parent's failure to apply does not permanently convert shared custody into sole custody.
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Retroactive Repayment Risk: A parent who received 100% can have to repay 50% if the other shared-custody parent later applies.
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Each Parent Should Apply: CRA recommends that both individuals apply in shared custody.
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Payment Amounts Can Differ: Each parent receives 50% of the amount calculated using their own applicable AFNI.

6. New Partners, AFNI and Changes in Custody

A parent's CCB calculation after separation is based on the family situation applicable to that parent. If a separated parent later marries or becomes common-law with a new spouse or partner, CRA generally combines the applicable net incomes of the parent and new spouse/common-law partner when determining AFNI for the benefit calculation. This can reduce or increase the CCB compared with the person's previous single-parent calculation. This is why it is inaccurate to say that each shared-custody parent's CCB is based solely on their individual income. The correct rule is that each parent receives 50% of the amount they would have received with full custody, calculated under the CCB rules applicable to that parent's own family situation. Changes in custody, marital status, the child's residence, or the person primarily responsible for care must be reported to CRA. These changes can alter both entitlement and the amount payable.

ChangePotential CCB EffectAction
Separation after more than 90 daysAFNI and custody calculation can changeReport marital-status change by the end of the following month after the separation condition is met
New marriage/common-law relationshipNew spouse/common-law partner's income can affect AFNIUpdate marital status with CRA
Child changes primary householdCan change full-custody/shared-custody classificationUpdate CRA child/custody information promptly
Shared custody beginsEach eligible parent generally receives 50% of their own full-custody entitlementBoth individuals should notify/apply to CRA
Shared custody endsOne parent may become full-custody recipient or the child may move to another eligible individualUpdate CRA immediately

7. Step-by-Step 2026 Shared-Custody CCB Workflow

Start by establishing the child's actual living arrangement. Calculate the approximate percentage of time the child spends with each parent and determine whether each parent is between the CRA's 40% and 60% shared-custody range. Then document the schedule and identify the applicable family and income information for each parent. Each parent should notify CRA of the new custody arrangement and apply for the CCB. CRA will calculate each parent's 50% entitlement using the CCB rules applicable to that parent's AFNI. If CRA requires proof, provide the requested court order, agreement, school/daycare, medical or other evidence. Continue to monitor the arrangement. A temporary change may not necessarily alter the classification, but a permanent change in the child's living arrangement should be reported. Marital-status changes must also be reported under CRA's separate 90-day separation rule.

Actionable Living & Housing Checklist

  • Document the actual parenting schedule.
  • Determine whether each parent has 40%–60% care.
  • Keep the court order or parenting agreement.
  • Notify CRA of the custody arrangement.
  • Have both shared-custody parents apply for the CCB where applicable.
  • Keep each parent's current family-income information accurate.
  • Report permanent custody changes promptly.
  • Report a qualifying separation after more than 90 consecutive days and by the required deadline.

Official Government & Tribunal References

Frequently Asked Questions (6 Verified Answers)

CRA generally considers a child to be in shared custody when the child lives with each parent or other eligible individual between 40% and 60% of the time. Examples include alternating weeks or a four-days/three-days weekly arrangement. If the child lives with one parent more than 60% of the time, that parent is generally treated as having full custody for CCB purposes.

Each eligible parent receives 50% of the CCB amount they would have received if the child lived with them full-time. CRA does not split the benefit according to the actual parenting percentage, so a 45%/55% schedule still results in a 50%/50% CCB calculation. The two parents can receive different dollar amounts because each parent's applicable AFNI is used separately.

CRA says not to report a separation until the parents have been living separate and apart for more than 90 consecutive days because of a breakdown in the relationship. Once that condition is met, the marital-status change should generally be reported by the end of the following month. CRA can be notified through My Account, by phone or with Form RC65.

CRA can request evidence that shows the child's actual living and care arrangement. Depending on the case, useful evidence can include court orders, parenting or separation agreements, school or daycare records, medical or dental records, calendars and other documentation showing where the child lives and how care is divided. A court order is useful but does not necessarily determine the CCB outcome by itself if the practical arrangement is different.

The other parent's income is not simply combined with yours for your half of the shared-custody calculation. CRA calculates each parent's 50% entitlement separately using that parent's applicable AFNI. However, if you have a spouse or common-law partner after separation, that new partner's income can become relevant to your AFNI under the normal CCB rules.

No. Where CRA determines that the child is in a shared-custody arrangement, each eligible parent is entitled to 50% of the amount they would have received with full custody. CRA does not replace that statutory calculation with an agreed six-month or alternating 100%/0% arrangement. If one parent initially receives 100% because the other parent did not apply, CRA warns that the first parent may later have to repay 50% when the other shared-custody parent applies.

Shared Custody Metrics

  • CRA Shared Custody Threshold40% to 60% Parenting Time
  • CCB Payment Split
    50% to Each Eligible Parent
  • Income CalculationEach Parent's Own AFNI
  • Separation Reporting
    After >90 Days Apart; Then Promptly