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.
Discover legal considerations when drafting a prenuptial agreement involving children in England and Wales. This comprehensive guide explains what can and cannot be included, how family courts treat prenups with respect to children's needs and welfare, and practical steps couples can take to create clear, fair financial arrangements that support families and respect statutory protections.
Prenuptial agreements (prenups) are arrangements made by couples before marriage or civil partnership to outline how finances and assets should be handled if the relationship later ends. In England and Wales, prenups are not automatically legally binding but are increasingly influential in family courts when properly drafted and fair. When children are part of a family - whether born before or after marriage, or expected in the future - special legal considerations arise in drafting a prenuptial agreement to ensure that it respects the rights of children and aligns with legal principles. This article explains the legal framework governing prenuptial agreements involving children, outlines what can and cannot be included, and guides couples on how to approach drafting prenups in a manner that courts are likely to recognise as relevant and fair.
How Prenuptial Agreements Are Treated by Courts
Family courts in England and Wales consider prenuptial agreements as one of many relevant circumstances when deciding financial issues on divorce or dissolution under the Matrimonial Causes Act 1973 and equivalent provisions for civil partnerships. A landmark Supreme Court decision in Radmacher v Granatino established that courts should generally uphold prenups that were entered into freely, with full financial disclosure and a clear understanding of their implications, unless doing so would be unfair in the prevailing circumstances.
However, the court retains its statutory discretion to make financial orders that it considers fair and reasonable for both parties and any children of the relationship. The existence of a prenuptial agreement does not oust the court's authority to decide financial arrangements on divorce, particularly where children's needs are concerned.
Fundamental Legal Principles Concerning Children
Children's Best Interests Are Paramount
Under the Children Act 1989, family courts always prioritise the best interests and welfare of children when making decisions that affect them. This principle applies equally on divorce or dissolution, regardless of any private agreement between adults. A prenuptial agreement cannot be used to dictate terms that would compromise a child's welfare or financial protection.
Court Discretion Cannot Be Contracted Out
Prenuptial agreements cannot contain clauses that attempt to predetermine child custody (residence or contact), child maintenance, or financial support for children, as these matters are governed by law and must be decided based on current circumstances at the time of any separation or divorce. Courts will disregard any attempt to contract out of statutory responsibilities towards children.
What Can Be Included in a Prenuptial Agreement with Children in Mind
Although prenups cannot bind a court on child custody or maintenance, they can address financial arrangements that support children's interests in a permissible way if drafted carefully. Examples include:
1. Provisions for Asset Division With Children's Needs in Mind
A prenup can outline how assets, savings, pensions and property are to be divided in the event of divorce, taking into account the financial needs of any children. While the court will make the final decision, demonstrating a considered plan for children's future needs (education, housing, etc.) can support a fair settlement.
2. Arrangements for Trusts or Inheritances for Children
Couples can agree how family trusts or inheritances might be treated if the marriage ends, particularly if these funds are intended to benefit children. Similarly, trust arrangements for children can be referenced in a prenup to clarify intentions, although the court can still make its own orders.
3. Review Mechanisms for Later Life Events
Some prenups include clauses that trigger review or revision of the agreement upon the birth or adoption of children, allowing the terms to be updated to reflect changed circumstances. While such review clauses do not bind a court, they show foresight and mutual understanding that the agreement should adapt to family changes.
What Cannot Be Included
Prenuptial agreements have clear legal limits. With respect to children, the following cannot be part of a prenup in a way that binds a court:
- Child Custody or Residence Arrangements: Decisions about where a child lives or how much time they spend with each parent must be made by the court based on the child's best interests.
- Child Maintenance and Financial Support: Prenups cannot waive, limit or pre‑set child support obligations. The court or the Child Maintenance Service retains jurisdiction to determine appropriate maintenance based on need and resources.
- Specific Parenting Instructions: Provisions about schooling, religious upbringing, healthcare or daily routines are not enforceable and fall outside the scope of lawful prenup content.
- Illegal or Unjust Terms: Any clause that undermines children's financial wellbeing, attempts to limit statutory protections, or contradicts public policy will be disregarded by a court.
Drafting Considerations When Children Are Involved
1. Focus on Financial Protection, Not Parenting Details
The primary lawful purpose of a prenuptial agreement is to address financial issues, not personal or parenting arrangements. It is lawful and useful to outline how assets will be shared and how funds may be allocated to cover children's obligations, but not to prescribe custody, schooling or similar arrangements.
2. Ensure Fairness and Sufficiency of Provision
A prenup that leaves a spouse and any children without adequate financial provision is likely to be given little weight. Courts will examine whether an agreement is fair and reasonable at the time it is to be enforced. Agreements that fail to recognise children's financial needs, including education, housing and general welfare, may be varied by a court.
3. Obtain Independent Legal Advice for Both Parties
Each party should obtain independent legal advice from their own solicitor to confirm they understand the implications of the agreement, particularly in relation to children's needs. Independent advice increases the likelihood that a court will give the agreement appropriate weight.
4. Provide Full Financial Disclosure
Complete and transparent disclosure of financial circumstances - including income, assets, liabilities and any financial arrangements for children - is crucial. Lack of disclosure can undermine the agreement's standing and lead to challenges in court.
5. Time the Agreement Appropriately
Prenups should be negotiated and signed well before the wedding or civil partnership registration - ideally several weeks in advance - to reduce concerns about duress or undue pressure.
Practical Steps for Families With Children
- Discuss Financial Priorities Early: Before drafting a prenup, couples should have open discussions about financial priorities and children's needs to ensure the agreement reflects shared expectations.
- Incorporate Flexibility: Draft review clauses that allow revisiting the agreement in light of future circumstances, including the birth or adoption of children.
- Use Specialist Family Law Advisers: Working with solicitors experienced in family law helps ensure the prenup adheres to legal requirements, particularly concerning children.
- Consider Complementary Plans: In addition to a prenup, couples might consider wills, trusts or estate planning to ensure children are provided for in the event of death or incapacity.
Common Questions
Can a prenuptial agreement ever determine child support?
No. Prenuptial agreements cannot predetermine child maintenance; courts or statutory bodies decide child support based on current circumstances and the child's needs.
Does having a prenup affect custody decisions?
No. Decisions about child custody or residence are made by the family court with reference to the best interests of the child, not by referring to a prenup.
Should future children be mentioned in a prenup?
A prenup can reference potential children in terms of intent to review the agreement if children are born, but it cannot bind a court to specific outcomes regarding their custody or support.
Key Takeaways
When drafting a prenuptial agreement in England and Wales where children are involved or anticipated, the primary focus should be on financial arrangements that support the family's welfare, while recognising that courts retain ultimate authority over child‑related matters. Prenuptial agreements can clarify how assets and liabilities will be managed and can acknowledge financial responsibilities towards children, but they cannot dictate custody, visitation, schooling, or child maintenance. To enhance the likelihood that a prenup will be given weight by a court, both parties should seek independent legal advice, provide full financial disclosure, ensure fairness, and avoid attempting to include prohibited terms related to children's rights or welfare. Careful drafting that aligns with statutory principles and respects the court's discretion helps couples address financial issues comprehensively while safeguarding children's interests.
