This guide is maintained as a current resource for September 2026 and covers only the laws of England and Wales. Information is for general guidance, not legal advice. Consult a qualified solicitor for advice specific to your situation.
Comprehensive guide to changing Child Arrangements Orders after separation in England and Wales. Explains when and how orders can be varied, the court process, mediation, enforcement risks, who can apply and practical steps for parents seeking updated arrangements in their children's best interests.
After separation or divorce in England and Wales, parents or carers may have a Child Arrangements Order (CAO) in place that sets out where a child lives and when they spend time with each parent or other important family members. Lives change, children grow and parents' circumstances can shift in ways that mean the original arrangements may no longer work. The law recognises this and provides mechanisms for modifying existing court orders - but only through the correct legal steps. This article explains when and how orders can be changed, the legal processes involved, key considerations, who can apply, and practical guidance for families navigating changes.
What a Child Arrangements Order Is
A Child Arrangements Order is a family court order made under Section 8 of the Children Act 1989. It governs:
- With whom a child is to live;
- When a child is to spend time with or otherwise have contact with parents and others.
It replaces older “custody” and “contact” orders and focuses on arrangements that are in the child's best interests.
Why Change an Existing Order?
Life can change significantly after an order has been made. Common reasons for seeking a change include:
- A parent moves home or relocates for work;
- Work schedule changes that affect handovers or contact times;
- A child's educational, health or social needs evolve as they get older;
- Family circumstances shift, such as a parent remarrying or changes in care needs.
Courts understand that children's needs and family circumstances do not remain static and that arrangements which were appropriate at one time may require adaptation.
Informal Changes vs Formal Variation
Informal Agreement
If both parents agree to new arrangements, they can follow the new schedule informally without breaching the order - provided there is clear mutual consent. However, such informal changes are not legally binding. If the informal agreement breaks down, the original order continues to apply and may create uncertainty or disputes later.
Consent Order
Where parents agree on changes, they can ask the court to formalise those amendments through a consent order. This makes the updated arrangements legally binding without contested court hearings. A solicitor usually drafts the consent order, and both parties must sign it before submission to the court for approval.
Applying to Vary a Child Arrangements Order
If one parent does not agree to changes, the other parent must take formal legal steps to vary (or discharge) the existing order through the family court. This generally involves the following steps:
1. Mediation and Pre‑Application Requirements
Before applying to court in most cases, parents must attend a Mediation Information and Assessment Meeting (MIAM) to explore whether mediation or other dispute‑resolution methods could resolve the matter. There are exemptions (for example, where domestic abuse or risk to the child is present), but mediation is encouraged as a first step.
2. Completing the Court Application
To vary an order, the applicant typically completes Form C100 (which is used for many Children Act applications) and submits it to the family court. This application requests that the existing child arrangements order be amended to reflect new circumstances.
3. Court Process and Hearings
Once the application is lodged, the court will list a First Directions Hearing and may involve the Children and Family Court Advisory and Support Service (Cafcass) to provide independent insight into the proposed changes and the child's welfare. Detailed evidence may be required, including statements from parents, professionals or representatives, and reports on the child's needs.
4. Welfare Assessment
The court's overarching obligation is always the child's welfare. Judges assess whether varying the order is justified by a significant change in circumstances and whether the proposed new arrangements are in the child's best interests. If the court determines that the change serves the child's welfare better than the current order, it may grant the variation.
Who Can Apply to Change an Order?
The right to apply for a variation of a Child Arrangements Order generally extends to:
- A parent, including those with parental responsibility;
- A guardian or special guardian;
- A step‑parent with parental responsibility;
- Anyone named in the existing CAO for contact or residence;
- In some cases, individuals who have lived with the child for an extended period or have consent from all holders of parental responsibility.
Enforcement and Breach Considerations
Changing an order without agreement or court approval can amount to a breach of the existing CAO. Courts do not actively monitor compliance but will take action if an application is made to enforce the order. Enforcement options include warnings, fines, unpaid work requirements, or, in very serious cases, community penalties - though imprisonment is rare and typically reserved for persistent non‑compliance.
If one parent unilaterally alters the arrangements set out in the order without court approval or agreement, the other parent may apply to enforce the original terms or seek a variation if the change reflects a genuinely new position that benefits the child's welfare.
Timeframes and Practical Considerations
The length of time to complete a variation application depends on the complexity of the case and court availability. Initial hearings may occur within 6–8 weeks of filing, but involvement of Cafcass or complex welfare considerations can extend the process. Preparation and evidence‑gathering can also influence timing.
It is important for parents to maintain clear records of communications and agreements, seek legal guidance where necessary, and consider mediation or negotiation before embarking on contested court proceedings.
Common Questions About Varying Orders
Can I change the arrangements without going back to court?
Yes, if both parents agree, they can informally adjust the schedule or formalise it with a consent order. Otherwise, a court application is usually required.
Is it enough that circumstances have changed?
A change in circumstances alone does not automatically lead to a variation. The applicant must convince the court that the new arrangements better serve the child's welfare than the existing order.
Will the court always agree to change an order?
Not necessarily. The court's priority is the child's welfare, and if the existing arrangements remain appropriate, the variation may be refused. Evidence, legal representation and independent support services (such as Cafcass) influence this assessment.
Key Takeaways
Changing a Child Arrangements Order after separation or divorce in England and Wales is possible when the circumstances of the parents or the child evolve. If both parents agree, changes can be formalised through a consent order to ensure legal enforceability. Where agreement cannot be reached, a parent or eligible person may apply to the family court to vary the existing order. The court's paramount consideration is always the child's welfare, and variation applications require evidence that the proposed changes better serve the child's needs. Understanding the procedures, responsibilities and practical steps involved helps parents and carers navigate change with clarity and legal certainty.
