Child custody law in the UK does not actually use the word “custody” anymore. Since the Children Act 1989, courts decide who a child lives with and how they spend time with each parent through what are now called child arrangements orders, and every decision is governed by one test: what is best for the child. Parents are expected to try to agree between themselves, attempt mediation if they cannot, and only ask a judge to decide as a last step.
The practical questions most separating parents have — who gets to make decisions, what the court can order, how long it takes, what it costs, and what happens if the other parent won’t cooperate — all sit inside that framework. The sections below work through them.
Who Has the Right to Make Decisions
Parental responsibility is the legal authority to make the big calls about a child’s upbringing: schooling, medical treatment, religion, passports, and changes of surname. The Children Act 1989 defines it as the rights, duties, powers, and authority a parent has over a child and their property.1Legislation.gov.uk. Children Act 1989 – Section 3
A birth mother holds parental responsibility automatically. A father has it automatically if he was married to the mother at the time of birth, or, for births registered after 1 December 2003, if his name is on the birth certificate.2Legislation.gov.uk. Children Act 1989 – Section 4 An unmarried father not named on the certificate can acquire it by formal agreement with the mother or by applying to court.3GOV.UK. Parental Rights and Responsibilities – Who Has Parental Responsibility Step-parents, civil partners, and second female parents can also obtain it.
Two points catch people out. Parental responsibility does not by itself decide where the child lives — parents with it still have to agree arrangements, or ask the court. And it does not end when parents separate. Both parents keep it unless a court specifically removes it, which is rare.
What Orders the Court Can Make
Section 8 of the Children Act 1989 gives courts four orders to work with.4Legislation.gov.uk. Children Act 1989 – Section 8 Knowing which does what matters before you file anything.
Child Arrangements Orders
A child arrangements order sets out who the child lives with and when they spend time with each parent. In 2014 it replaced the older “residence” and “contact” orders.5Legislation.gov.uk. Children and Families Act 2014 – Section 12 It can cover a week-on, week-off shared schedule, specific weekends, holidays, midweek overnights, or indirect contact like phone and video calls where distance makes regular visits unworkable.
These orders are legally binding, and every one made since December 2008 carries a warning notice on its face spelling out the consequences of breach. The order can be varied later as a child grows.
Specific Issue Orders
A specific issue order settles one defined dispute between parents who both have parental responsibility and cannot agree: which school the child attends, whether a particular medical treatment goes ahead, a planned trip abroad.
Prohibited Steps Orders
A prohibited steps order does the reverse — it stops someone taking a specified action without the court’s permission. Typical uses include blocking a change of surname, preventing removal of the child from the country, or stopping an unagreed change of school. In urgent cases, particularly where there is a real risk of abduction, it can be granted without notice to the other parent.
Specific issue and prohibited steps orders both use Form C100 and both are decided on the same welfare test as any other section 8 order.
How a Judge Decides: The Welfare Checklist
Section 1 of the Children Act makes the child’s welfare the court’s “paramount consideration” and sets out the factors a judge must weigh in any contested decision.6Legislation.gov.uk. Children Act 1989 – Section 1 They are:
- The child’s wishes and feelings, read in light of age and maturity. A teenager’s view carries more weight than a toddler’s, and no child is forced to choose between parents.
- Physical, emotional, and educational needs.
- The likely effect of any change in circumstances. Courts are cautious about disrupting arrangements that already work.
- Age, sex, background, and relevant characteristics, including cultural, religious, and linguistic factors.
- Any harm suffered or at risk, covering physical, emotional, and sexual abuse, and witnessing domestic abuse.
- Each parent’s capability to meet those needs, including willingness to support the child’s relationship with the other parent.
- The range of powers available to the court.
Section 1 also carries what practitioners call the no-order principle: the court should not make an order unless doing so would be better for the child than making none. If parents can agree without a judge imposing it, the law prefers that outcome.6Legislation.gov.uk. Children Act 1989 – Section 1
Mediation First, Then the Application
Before you can file at court, you must attend a Mediation Information and Assessment Meeting (MIAM). A trained mediator assesses whether the dispute could be resolved without a judge.7Justice UK. Practice Direction 3A – Family Mediation Information and Assessment Meetings (MIAMs) and Non-Court Dispute Resolution Mediation is cheaper, faster, and less adversarial, and the court expects you to have tried it.
Exemptions apply where there is evidence of domestic abuse, child protection concerns, or genuine urgency.8Gov.uk. Family Mediation Information and Assessment Meeting (MIAM) If you attend mediation but no agreement is reached, the mediator signs a form that you file with your application.
The application itself is on Form C100. It asks about the child, current arrangements, what you want the court to order, and why. The court fee is £263, with fee remission available on low income.9GOV.UK. Making Child Arrangements if You Divorce or Separate: Apply for a Court Order
Preparation matters more than most people expect. Gather school reports, medical records, and a clear timeline of the child’s current routine. A vague or disorganised application starts you on the back foot.
What Happens After You Apply
Once the C100 is filed, the court sends it to Cafcass (or Cafcass Cymru in Wales). A Cafcass officer runs safeguarding checks against police and local authority records and speaks to both parents by phone. A short safeguarding letter goes to the judge before the first hearing.10Cafcass. My Family Is Involved in Private Law Proceedings
The first hearing is a First Hearing Dispute Resolution Appointment. The judge and a Cafcass officer try to help both parents reach agreement on the day. Many cases settle at this stage, and any agreement can be turned into a binding order on the spot. If not, the judge gives directions: witness statements, a full Cafcass welfare report, or a fact-finding hearing if abuse is alleged.
Cases that do not settle move through further hearings to a final hearing, where the judge decides. Private children cases can take anywhere from a few months to over a year, depending on complexity, whether a welfare report is ordered, and court availability.
When Domestic Abuse Is Alleged
If abuse is raised in a children case, Practice Direction 12J requires the court to take particular steps before deciding any contact arrangements.11Justice UK. Practice Direction 12J – Child Arrangements and Contact Orders: Domestic Abuse and Harm The definition tracks the Domestic Abuse Act 2021 and reaches well beyond physical violence: controlling or coercive behaviour, economic abuse, psychological and emotional abuse, and threatening behaviour all count.
Where allegations are disputed, the court must decide early whether a fact-finding hearing is needed. The accusing party files a schedule of allegations; the other party responds in writing. Only after facts are decided does the court move on to arrangements. Any interim contact ordered before fact-finding must not expose the child to unmanageable risk, which in practice can mean supervised contact at a contact centre, indirect contact, or no contact until the position is resolved.
Enforcing an Order That Is Being Breached
A child arrangements order is binding. If one parent repeatedly refuses handovers, blocks calls, or ignores the schedule, the other can apply to enforce it using Form C79.
The most common response is an enforcement order under section 11J of the Children Act 1989, requiring the parent in breach to carry out between 40 and 200 hours of unpaid work.12Legislation.gov.uk. Children Act 1989 – Section 11J The court must be satisfied beyond reasonable doubt that the breach happened and that the parent had no reasonable excuse, and the penalty has to be proportionate and consider the impact on the child.
Courts can also order financial compensation for losses caused by a breach, such as the cost of a missed holiday. Persistent, deliberate defiance can lead to committal for contempt, which carries up to two years in prison. Imprisonment is a last resort, but cases do get there.
If the order is simply not working because circumstances have changed, apply to vary it rather than ignoring it. Unilaterally rewriting the arrangements is one of the fastest ways to lose credibility with a judge.
Taking a Child Abroad
Taking a child under 16 out of the UK without the consent of every person with parental responsibility is a criminal offence under the Child Abduction Act 1984.13Legislation.gov.uk. Child Abduction Act 1984 – Section 1 If a child arrangements order names someone as the person the child lives with, that person can take the child abroad for up to 28 days without the other parent’s consent. Anything longer needs agreement or a court order.
For a permanent move abroad, the relocating parent needs written consent from everyone with parental responsibility, or a court order giving permission. The court applies the welfare checklist and looks at the quality of the proposed arrangements, the impact on the child’s relationship with the parent left behind, and the reasons for the move.
If a child is taken abroad without consent, the 1980 Hague Convention — implemented in the UK by the Child Abduction and Custody Act 1985 — provides a route for return. The default position is that a wrongfully removed child should be returned promptly to their country of habitual residence. Exceptions are narrow: a grave risk of harm, an objection by a child old enough for it to carry weight, or more than a year passing with the child now settled in the new country.
Grandparents and Other Relatives
Grandparents cannot apply for a child arrangements order as of right. Under section 10 of the Children Act 1989 they must first ask the court for permission.14Legislation.gov.uk. Children Act 1989 – Section 10 The court looks at the nature of the proposed application, the grandparent’s connection with the child, and whether the application itself might harm the child by disrupting their life.
Permission is not needed if the child has lived with the grandparent for at least one year immediately before the application, if everyone with parental responsibility consents, or if the child is in local authority care and the authority agrees. The permission stage is a filter, not a wall, and courts regularly grant leave where there is a real existing relationship between grandparent and child.
The same permission requirement applies to aunts, uncles, family friends, and anyone else who is not a parent, guardian, or special guardian.
Paying for the Case
Most private children cases are not covered by legal aid. Since the Legal Aid, Sentencing and Punishment of Offenders Act 2012, the general rule is that you pay for your own solicitor or represent yourself. Family solicitor hourly rates typically run from around £150 to over £300, and a case that reaches a contested final hearing can cost tens of thousands of pounds.
The main exception is domestic abuse. If you can produce prescribed evidence that you or your child has experienced domestic abuse, legal aid is still available for private family law proceedings, subject to financial eligibility. The accepted evidence list is broad: police involvement, protective injunctions, letters from a doctor, refuge referrals, and court findings of fact, among others.15GOV.UK. Evidence Requirements for Private Family Law Matters Guidance If you think you may qualify, contact Civil Legal Advice before paying for a private solicitor.
For those who do not qualify, fee remission can reduce or eliminate the £263 court fee. Many litigants in person also use free initial consultations from family solicitors, university law clinics, and guidance from Citizens Advice. Self-representation is harder than it looks, but it is manageable in straightforward cases if you prepare thoroughly and keep your focus on the welfare checklist rather than grievances with the other parent.
One boundary worth stating plainly: child arrangements and child maintenance run on separate legal tracks. Maintenance is handled by the Child Maintenance Service or by private agreement and is not decided as part of a section 8 application, even though the two issues often arise at the same time.