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.
Explore the legal effect and enforcement of child maintenance agreements in the UK. Learn how private agreements, CMS arrangements and consent orders differ, and how each can be enforced to secure financial support for children.
Child maintenance ensures that separated or divorced parents provide ongoing financial support for their children's everyday needs, including food, clothing, housing and education. Parents can set up child maintenance agreements either through statutory mechanisms such as the Child Maintenance Service (CMS) or by agreeing arrangements privately. Understanding the legal effect of these agreements and how they can be enforced is crucial for parents and carers to protect a child's financial wellbeing.
This article explains the types of child maintenance agreements, their legal status, how they are enforced, and what options are available when payments are missed or disputes arise. It aims to guide readers step by step through the legal framework in England and Wales.
What Is a Child Maintenance Agreement?
A child maintenance agreement is any arrangement between parents about the financial support of their child. These agreements can take different forms:
- Statutory arrangements calculated and managed by the Child Maintenance Service (CMS).
- Private agreements made directly between parents without CMS calculation or involvement.
- Court‑approved agreements, where private arrangements are formalised as part of a consent order or court maintenance order.
Under the Child Support Act 1991, people are free to enter into maintenance agreements, but such agreements do not affect a parent's right to apply for a CMS assessment or court order regarding child maintenance. Provisions that attempt to block such applications are void.
Private Agreements: Flexibility and Limitations
A private child maintenance agreement is where parents agree between themselves how much and how often child maintenance will be paid. These can be tailored to the family's needs and may even include payments in kind, such as school uniforms or extracurricular costs.
Advantages of private agreements include:
- Greater flexibility in payment amounts, timing and methods.
- No compulsory fees that may apply under CMS “Collect and Pay” services.
- Potential for less conflict if parents cooperate closely.
Limitations:
- By default, private agreements are not legally binding. If a paying parent stops payments, there is no automatic enforcement mechanism unless the agreement has been formalised under CMS or a court order.
- Without legal status, it can be difficult to recover missed payments or enforce the arrangement.
- Private agreements may not be recognised for enforcement in other jurisdictions if a parent lives abroad.
Because of these limitations, parents often choose to make an agreement legally enforceable by bringing it within a formal legal framework.
Making a Private Agreement Legally Binding
A private child maintenance agreement can be given legal effect by making it a consent order through the family court. A consent order is a court approval of an agreement that gives it legal status so that:
- The paying parent must comply with the terms as if they were a court order.
- Failure to comply can lead to enforcement action through the courts.
To get a consent order, parents usually prepare a statement of information and ask the court to make the agreement into an order. The court will check that the terms are reasonable and in the child's interests before granting it.
Once approved, a consent order has the same legal force as a court maintenance order and can be enforced accordingly.
Statutory CMS Arrangements and Enforcement
If parents cannot agree privately or choose not to formalise an agreement, they can apply to the Child Maintenance Service for a maintenance calculation. The CMS can operate either:
- Direct Pay – the CMS calculates the amount, and parents manage payments themselves, or
- Collect and Pay – the CMS collects payments from the paying parent and passes them to the receiving parent, charging fees for this service.
CMS arrangements have substantive legal effect because they are statutory assessments under the child support scheme. If the paying parent defaults, the CMS has enforcement powers, including:
- Deduction from earnings or pension payments without requiring a court order.
- Direct deductions from bank accounts or other income sources.
- Application for a court ‘liability order', which recognises unpaid maintenance as a legal debt and enables further enforcement steps.
Statutory arrangements generally provide stronger enforcement mechanisms than private agreements because enforcement powers are built into the child support regime.
Enforcing Court Orders and Consent Orders
Where a consent order or other court maintenance order exists, the court itself can enforce payment if the paying parent does not comply. Common enforcement tools include:
- Attachment of earnings orders (deductions from wages).
- Charging orders on property owned by the paying parent (to secure amounts owed).
- Freezing or enforcement against other assets where necessary.
- Possible committal proceedings for persistent non‑payment.
These enforcement mechanisms are powerful because they involve direct court authority to secure payment and prevent avoidance.
Interaction Between Private Agreements and Statutory Orders
Parents might wonder how a private agreement interacts with statutory maintenance arrangements. Key points include:
- A private agreement does not prevent either parent from later applying to the CMS for an assessment. Any clause that seeks to restrict such a right is void under the Child Support Act 1991.
- If a child maintenance order or consent order exists, there are restrictions on applying for a CMS assessment during the first 12 months after the order has been in force.
- If a private agreement breaks down and is not legally binding, parents can return to the CMS for a statutory arrangement, though CMS cannot generally backdate maintenance before the date of application.
Time Limits and Changing Circumstances
Child maintenance is normally payable until the child is aged 16, or up to 20 if in full‑time education. Formalised agreements or orders should reflect this timescale. Changes in circumstances, such as changes in income or care arrangements, can justify variation of maintenance amounts, either via a new CMS assessment or by applying to the court to vary a consent order.
Risks and Practical Considerations
Risks of informal agreements include lack of enforceability and uncertainty about future compliance. If one parent stops payments, the receiving parent may need to resort to the CMS or court action to secure support.
Making an agreement legally binding through a consent order or using CMS mechanisms can avoid these issues and provide recourse where payments are missed.
Before formalising a maintenance agreement, it is often advisable to seek specialist family law advice to ensure it meets legal requirements and protects the child's rights.
Common Questions
Can I enforce a private child maintenance agreement?
Only if it has been made legally binding by a court order such as a consent order. Without this, informal agreements are not enforceable.
If we agree the amount privately, can the CMS still be involved?
Yes. A private agreement doesn't prevent a parent from applying to the CMS for a statutory calculation or enforcement.
Can a private agreement stop future CMS claims?
Agreements cannot validly restrict a parent's statutory right to apply for a CMS assessment; such restrictions are void under law.
The Bottom Line
Child maintenance agreements can range from informal private arrangements to court‑approved consent orders and statutory CMS assessments. The legal effect and enforceability depend on whether the agreement is formalised. Informal arrangements offer flexibility but little legal protection, while court orders and CMS assessments provide clear enforcement mechanisms. Parents should carefully consider their options and seek legal guidance to ensure that agreements are effective, enforceable and reliably support the child's financial needs.
