Family Law

Make Your Prenup Hold in England and Wales Before 2026 Reform

Prenuptial agreement folio beside wedding rings

Prenuptial agreements are not automatically binding in England and Wales, but since Radmacher v Granatino the courts have given them significant weight when the right safeguards are followed. If you want an agreement that stands up when it matters, the first step is straightforward: instruct a specialist family solicitor early, and make sure both parties give full financial disclosure before anything is signed.

TL;DR:

  • Proper early advice and full financial disclosure are essential to ensure a prenup is likely to be upheld in court.
  • Signatures should occur at least 28 days before the wedding, with each party advised separately and aware of all assets.
  • The agreement must be fair and not leave either party facing hardship, especially regarding housing or children’s needs.
  • International assets and foreign jurisdictions require explicit law clauses and local legal advice to ensure enforceability.
  • Upcoming law reforms aim to make well-drafted agreements automatically binding, but current precautions remain crucial for protection.
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Table of Contents

What is a pre nuptial agreement in UK law?

A prenuptial agreement is a written contract couples sign before marrying or entering a civil partnership, setting out how money and property should be divided if the relationship later breaks down. It sits alongside the postnuptial agreement, which does the same job but is signed after the wedding.

Couples typically use a prenup to deal with:

  • Ring-fencing inheritances or gifts received from family
  • Protecting a business built up before the relationship
  • Setting out how the family home and other property will be split
  • Addressing pensions, savings and, to an extent, spousal maintenance (always subject to the court’s final say)

The appeal is rarely about distrust. Most clients we see want clarity, not conflict: they want to protect a child’s future inheritance, shield a business partner from being dragged into someone else’s divorce, or simply have an honest conversation about money before the wedding rather than after a solicitor’s letter arrives.

Are prenups legally binding in England and Wales now?

Not automatically. But the landmark Radmacher v Granatino judgment changed how courts approach them. The Supreme Court held that a court should give effect to a nuptial agreement that was freely entered into, with full appreciation of its implications, unless it would be unfair to hold the parties to it. That single sentence reshaped family law practice.

Before Radmacher, prenups were viewed with suspicion, treated as one factor among many and rarely decisive. Afterwards, a properly drafted agreement became something a court would usually follow, provided both procedural fairness (how it was made) and substantive fairness (whether the outcome is reasonable) are satisfied.

Judges still retain wide discretion. Section 25 of the Matrimonial Causes Act 1973 sets out the factors a court must weigh when deciding financial orders on divorce, including the welfare of any children, the parties’ needs, and the standard of living during the marriage. A prenup does not remove that discretion; it heavily influences how it’s exercised.

Court factors assessing a prenuptial agreement

Scotland takes a notably firmer line: prenuptial agreements there are generally treated as binding contracts unless successfully challenged, giving Scottish couples more certainty than their counterparts in England and Wales. That contrast matters if you or your partner have connections north of the border, or assets that might eventually be contested in a different jurisdiction.

What makes a prenuptial agreement more likely to be upheld?

Courts and practitioners consistently point to the same handful of safeguards. Miss any of these and you significantly increase the risk that a judge gives your agreement little weight, or none at all.

  1. Independent legal advice. Each party needs their own solicitor, not a shared one, and each should receive written advice confirming they understood what they were signing. This single step is the one most disputed agreements are found to be missing.
  2. Full and frank financial disclosure. Both parties must set out their assets, debts, income and pensions honestly. An agreement built on hidden wealth is an agreement built to fail.
  3. Timing and free consent. Sign too close to the wedding and a court may infer pressure. Resolution’s guidance recommends finalising the agreement at least 28 days before the ceremony, giving both parties genuine room to walk away.
  4. Substantive fairness. The agreement must not leave either party facing real hardship, and it must not ignore the reasonable needs of any children. A one-sided agreement that strips a lower-earning spouse of housing security is far more vulnerable to challenge.
  5. Proper drafting and evidence. The agreement should be executed as a deed, correctly witnessed, with solicitor file notes kept on record. Sloppy paperwork undermines an otherwise sound agreement.

Pro Tip: Ask your solicitor to keep a dated attendance note confirming you understood every clause. If the agreement is ever challenged years later, that note can matter more than the wording of the clause itself.

Our guide to how prenuptial agreements work breaks down each of these safeguards in more depth, including how they interact when an agreement is eventually tested in court.

What can a prenup cover, and what’s off limits?

A prenup can shape most financial outcomes, but it cannot override a court’s duty to protect children, and it cannot oust the court’s jurisdiction entirely.

Matters you can reasonably expect a prenup to address:

  • Division of property, savings and investments
  • Protection of inheritances or family gifts
  • Treatment of a business owned by one party
  • How pensions will be dealt with, always subject to court oversight

Matters a prenup cannot settle on its own:

  • Child maintenance or arrangements. Courts will always prioritise a child’s welfare over a contractual clause.
  • Anything illegal, or any clause attempting to remove the court’s power to review the agreement.
  • Spousal maintenance clauses carry real persuasive weight, but a court can still depart from them where fairness demands it.

How to prepare and sign a prenuptial agreement: step-by-step

Getting the process right matters as much as getting the wording right. Rush it, and you hand a future judge grounds to disregard it.

  1. Start early. Begin discussions months before the wedding, not weeks. Practical guidance from family solicitors consistently shows that starting conversations early reduces the risk of a later claim of duress and produces better-evidenced disclosure.
  2. Instruct separate solicitors. Each party needs independent representation. Our pre and post-nuptial agreement solicitors can advise one party, while your partner instructs their own firm.
  3. Exchange full financial disclosure. Prepare schedules of assets, liabilities, pensions, income and debts, backed by supporting documents such as bank statements, valuations and pension statements.
  4. Draft the agreement. Set out the governing law, usually England and Wales, and the intended treatment of assets, income and any special circumstances such as a family business.
  5. Sign as a deed, properly witnessed. This is a formality that’s easy to overlook and difficult to fix retrospectively. Keep the original document and full solicitor files.
  6. Review after major life events. A prenup signed before children arrive, or before a significant change in wealth, may need revisiting through a postnuptial agreement. It’s also worth reviewing your will alongside the agreement, since marriage automatically revokes an existing will and can interact directly with your asset protection planning.

Pro Tip: If either of you has assets or family ties abroad, raise this with your solicitor at the very first meeting. Retrofitting international clauses onto a nearly finished agreement almost always costs more than planning for them from the start.

Why prenups fail or carry little weight in court

Most agreements that unravel in court fail for one of a small number of predictable reasons.

  • Non-disclosure. An asset discovered years later that wasn’t declared at the time is one of the fastest ways to have an agreement set aside.
  • Signing under pressure. A document handed over days before the wedding, with no real opportunity to reflect or seek advice, invites a duress argument.
  • Real hardship. An agreement that leaves one party without housing or reasonable income, particularly where children are involved, will struggle to survive scrutiny.
  • Changed circumstances. A long marriage, the arrival of children, or a dramatic shift in one party’s health or earning capacity can make an agreement that was fair in year one manifestly unfair by year fifteen.
  • Poor execution. Missing witness signatures, no deed, or no solicitor file notes all weaken an agreement that might otherwise have held firm.

International considerations: assets, governing law and recognition abroad

If either party owns property abroad, holds assets in more than one country, or might relocate, the agreement needs an explicit governing law clause identifying which jurisdiction’s rules apply, usually England and Wales for a UK-based couple.

Enforceability abroad is far from guaranteed. Some countries treat prenups as straightforwardly binding contracts; others barely recognise them at all, or apply entirely different tests for fairness. Where significant overseas assets or a foreign marriage are involved, notarisation and jurisdiction-specific legal advice in the relevant country reduces the risk of the agreement being ignored entirely if a dispute ever ends up in a foreign court. Keep separate records showing that local advice was taken. That paper trail can matter as much as the agreement’s substance.

Are the rules about to change? Law Commission proposals and the 2026 consultation

The Law Commission’s project on matrimonial property, needs and agreements proposes a statutory category called “qualifying nuptial agreements”. Where strict safeguards are met, such agreements would become binding by law, rather than merely persuasive under Radmacher.

The government’s consultation on reforming financial remedies law engages directly with this proposal, and House of Lords Library briefings confirm the reform work is ongoing. Recent commentary notes that courts are already treating well-drafted agreements as close to decisive in practice, ahead of any legislation.

If you’re weighing up whether to wait for reform, don’t. Legislative timetables are unpredictable, and nothing in the current proposals suggests an agreement properly drafted today would be disadvantaged once any new law arrives. A well-prepared prenup, following the Radmacher safeguards, protects you now and is likely to sit comfortably within whatever framework eventually replaces it.

A practitioner’s view on getting prenups right

Working with couples on these agreements, the pattern is consistent: the ones that hold up were never rushed. Early advice changes the tone of the whole process, turning what could be an awkward conversation into a structured, fair discussion both parties can look back on without resentment.

We start with a fixed-fee initial consultation so you know the cost before committing to anything. Clients receive written advice setting out exactly what the agreement does and doesn’t achieve, and detailed file notes are kept throughout, the same records a court would expect to see if the agreement is ever challenged.

If you’re planning a wedding and want an agreement that will actually be worth something, speak to a specialist solicitor before you book the venue, not after.

— George

How Signature Law can help with your prenup

Beyond the legal test itself, what protects you is preparation: early advice, full disclosure, and a document drafted with the safeguards Radmacher demands. That’s exactly where a specialist firm earns its fee, handling the procedural detail so the agreement is built to last rather than built to be challenged.

Signature Law’s pre and post-nuptial agreement solicitors offer fixed-fee initial consultations, so you know the cost of that first meeting before you book it. Where relevant, we also assess Legal Aid eligibility for wider family law matters, and multilingual advice is available for clients who prefer to discuss sensitive financial matters in their first language.

The practical next step is simple. Book an initial consultation and bring a rough outline of your assets, debts and pensions with you. It saves time, and it gets your agreement drafted while there’s still plenty of runway before the wedding date. Start by visiting our family law solicitors page or get in touch directly to arrange a consultation.

How Signature Law can help with your prenup — overview diagram

Sources

Before your first appointment, it’s worth reading the key documents that shape how prenups are treated in England and Wales:

Bringing these along, or at least having read the summaries, helps your solicitor focus the first meeting on your specific circumstances rather than the basics of how the law works.

This article is general information, not a substitute for advice from a qualified lawyer. Consult a qualified legal professional about your own circumstances before acting on anything here.

FAQ

How much does it cost to get a prenup in the UK?

Costs vary by complexity and by firm, and typically depend on how many assets need disclosing and how much negotiation is required between each party’s solicitor. Ask about fixed-fee consultation options before committing, as many family law firms, including Signature Law, offer these for the initial meeting.

How easy is it to get a prenup in the UK?

Drafting the document itself is straightforward with the right solicitor, but getting one that actually holds weight in court takes time. It means starting early, giving full financial disclosure, and avoiding a last-minute signature close to the wedding date.

Are prenups worth it in the UK?

For most couples with meaningful assets, a business, an inheritance, or children from a previous relationship, a properly drafted prenup provides clarity and reduces future conflict, even though it is not automatically binding. The value lies in the certainty it creates when both safeguards and fairness are respected.

What cannot be included in a prenup in the UK?

A prenup cannot dictate child maintenance or custody arrangements, since courts always retain the final say on children’s welfare. It also cannot include illegal terms or attempt to remove the court’s jurisdiction to review the agreement entirely.