Can I Claim Child Benefit if My Child Lives With My Ex? — UK 2026/27

Only one person can claim Child Benefit for a child at any one time — and after separation, it goes to the person the child normally lives with. If your child has moved to live primarily with your ex, they should make a new claim and you need to notify HMRC. Here is how it works in 2026/27.

Child Benefit Rates 2026/27

Child Benefit is paid every 4 weeks directly into the claimant’s bank account. It is not means-tested — savings and most income do not affect eligibility (except the High Income Child Benefit Charge for higher earners).

Who Qualifies as the “Normal Residence” Parent?

HMRC uses the concept of normal residence to decide who claims. The child normally lives with whoever:

• The child spends the majority of their time with
• Is named on a court residence order (if one exists)
• Is primarily responsible for the child’s day-to-day care

If a child splits time unevenly between two parents — say 4 nights with Mum and 3 nights with Dad per week — Mum is normally considered the main carer and claims Child Benefit.

What to Do When a Child Moves to Live With Your Ex

Step 1 — Report the change to HMRC Contact HMRC (0300 200 3100 or online via your Child Benefit account) and tell them the child has moved to live with the other parent. Your Child Benefit will stop. Do this promptly — if you continue receiving payments you are not entitled to, HMRC will recover the overpayment.

Step 2 — Your ex-partner claims Your ex must make a new Child Benefit claim — this cannot be done until your claim has ended. Claims can be made online at gov.uk or by completing form CH2. HMRC will process the new claim and start payments.

Step 3 — Check backdating Child Benefit can be backdated up to 3 months from the date of the new claim. Your ex-partner should claim as soon as possible after the child moves in — not weeks or months later.

Shared Care: Who Claims When It’s 50/50?

When care is genuinely equal, HMRC asks the parents to agree who will claim. If no agreement is reached, HMRC decides. Neither the 50/50 split nor a court order automatically determines the outcome — HMRC looks at the full picture.

In practice:

• The parent who claims first often retains payment unless the other parent challenges it
• Either parent can write to HMRC to dispute who should receive it
• HMRC will consider factors including school registration, GP registration, and who pays the majority of daily costs

Worked example: After separating from his partner, James and his ex-partner share care of their daughter equally — 3.5 days each. Both want to claim Child Benefit (£26.05/week). HMRC contacts both. They cannot agree. HMRC decides in favour of the mother, who has the daughter registered at her address for school. James accepts this outcome. Neither parent is “wrong” — HMRC simply has to choose one.

High Income Child Benefit Charge After Separation

After separation, Child Benefit and the High Income Child Benefit Charge (HICBC) are assessed individually:

• The person who receives Child Benefit is responsible for reporting it
• The HICBC applies to whichever parent in that household earns over £60,000
• If your ex-partner claims Child Benefit and you are not in their household, the HICBC applies to their income, not yours — even if you earn more

Key point: After separation, the HICBC relates to the adjusted net income of the Child Benefit claimant and their current partner (if any) — not to the other parent’s income.

NI Credits and Child Benefit

Claiming Child Benefit for a child under 12 earns you NI credits — which protect your State Pension. If your child moves to live with your ex and they take over the claim, you lose these NI credits.

If you are out of work or earning below the NI threshold, you should check your State Pension record on the HMRC app or gov.uk before agreeing to hand over the claim — particularly if you are the lower-earning parent.

See our Child Benefit guide, Child Benefit leaving school at 16, and High Income Child Benefit Charge guide.