Child Arrangements and 'Custody': How Shared Care Actually Works in UK Law

The word ‘custody’ isn’t actually used in current UK family law - it was replaced years ago by a different legal framework focused on practical arrangements rather than who ‘wins’ the children. Understanding the current terminology and how courts actually approach these decisions helps set realistic expectations. This article covers England and Wales - Scotland and Northern Ireland have their own, separate systems.

Why ‘custody’ isn’t the legal term anymore

The Children Act 1989 replaced the older concepts of ‘custody’ and ‘access’ with ‘residence’ and ‘contact’ orders, and since April 2014 (under the Children and Families Act 2014) these have been combined into a single ‘Child Arrangements Order’ - reflecting a shift toward describing the practical reality (where a child lives, and when they spend time with each parent) rather than framing arrangements as one parent ‘winning’ custody over the other. The government’s 2026 consultation on divorce and cohabitation law focuses on financial remedies rather than children’s arrangements. Separately, though, the government plans to remove the legal presumption that involvement of both parents benefits a child, through the Courts and Tribunals Bill, which is still going through Parliament at the time of writing. That presumption was never a presumption of equal time, and the welfare-first approach described below stays the same either way.

What a Child Arrangements Order actually covers

• Living arrangements - where the child lives, and with whom (this can specify living with one parent, or living arrangements split between both).
• Contact/time arrangements - when and how the child spends time with the parent they don’t primarily live with, including holidays, school terms, and special occasions.

Parental responsibility: separate from living arrangements

Parental responsibility - the legal rights and responsibilities to make decisions about a child’s upbringing (education, medical treatment, religion) - is a separate legal concept from where a child physically lives. A mother automatically has parental responsibility from birth; a father has it automatically only if named on the birth certificate (for births after 1 December 2003) or if married to (or in a civil partnership with) the mother at the birth or later; a second female parent can also have parental responsibility in similar circumstances; otherwise, it requires a formal agreement or court order. Parental responsibility generally continues regardless of the specific living arrangements agreed or ordered.

The starting principle: the child’s welfare comes first

Courts apply the ‘welfare principle’ - the child’s welfare is the court’s paramount consideration, assessed against a specific ‘welfare checklist’ including the child’s own wishes (given weight according to age and understanding), physical and emotional needs, the likely effect of any change in circumstances, and each parent’s capacity to meet the child’s needs.

Courts strongly prefer parents to agree between themselves

The family court system actively encourages parents to reach agreement without court intervention wherever possible, including a required Mediation Information and Assessment Meeting (MIAM) before applying to court for a Child Arrangements Order (unless specific exemptions apply, such as evidenced domestic abuse). Most separating parents do reach agreement without needing a court-ordered arrangement at all.

Common shared care patterns

There’s no single legally ‘standard’ arrangement - patterns range from a child living primarily with one parent with regular contact (alternate weekends, for example) with the other, to genuinely equal shared time (alternating weeks, or a 2-2-3 pattern). What’s considered appropriate depends entirely on the specific circumstances, including the children’s ages, school logistics, and both parents’ work patterns and locations.

How child arrangements interact with child maintenance

The number of overnight stays agreed or ordered in a Child Arrangements Order directly affects the CMS child maintenance calculation (see our dedicated article on this) - meaning decisions about care arrangements and financial support are genuinely interconnected, not separate questions, even though they’re technically decided through different mechanisms.

If parents can’t agree

Where mediation doesn’t resolve things, either parent can apply to court for a Child Arrangements Order. The Children and Family Court Advisory and Support Service (Cafcass) carries out safeguarding checks on every application, and the court may ask Cafcass to prepare an independent welfare report with recommendations focused on the child, before the court makes a final decision.

The bottom line

‘Custody’ has been replaced by Child Arrangements Orders focused on practical living and contact arrangements, decided (whether by agreement or by a court) according to the child’s welfare rather than a parent’s perceived ‘right’ to the children. The vast majority of separating parents reach their own agreement, with court involvement and mediation available as structured routes when they can’t.