Many people believe that signing a pre-nuptial agreement guarantees that their assets will be protected if their relationship ends. The reality is more nuanced.

While pre-nuptial agreements can carry significant weight in the courts of England and Wales, they are not automatically legally binding. Understanding how they work can help you make informed decisions before marriage or entering a civil partnership.

What is a Pre-Nuptial Agreement?

A pre-nuptial agreement (or “pre-nup”) is a legal document created before marriage or a civil partnership. It sets out how a couple intends to deal with their finances, property and other assets if the relationship later comes to an end.

Choosing to enter into a pre-nup does not mean you expect the relationship to fail. Many couples see it as sensible financial planning, particularly where one or both partners have:

• Property or investments acquired before the relationship
• Family businesses
• Inherited wealth
• Significant savings or pensions
• Children from previous relationships

A well-prepared agreement can help protect these assets while reducing uncertainty, conflict and legal costs if the relationship breaks down.

Are Pre-Nuptial Agreements Legally Binding?

This is one of the most common misconceptions.

Unlike some other countries, England and Wales do not currently recognise pre-nuptial agreements as automatically legally binding.

Instead, the Family Court retains the final decision over how assets should be divided.

However, that does not mean a pre-nup has little value. Quite the opposite.

What Do the Courts Say?

The leading case is Radmacher v Granatino [2010] UKSC 42, in which the Supreme Court confirmed that courts should generally uphold a pre-nuptial agreement where:

• both parties entered into it freely
• each understood its implications
• it would be fair to hold both parties to the agreement.
• It was signed at least 28 days before the wedding (longer is preferable)
• the agreement does not leave either party in a position of real need

Courts may vary or set aside a prenup if circumstances change significantly, such as the birth of children, serious illness, or major financial changes

This means a properly prepared pre-nup can carry considerable weight when the court decides how assets should be divided.

However, the court can depart from the agreement if following it would lead to an unfair outcome, particularly if one party’s reasonable financial needs would not be met.

A pre-nuptial agreement also cannot prevent either party from asking the court to make financial orders, nor can it limit financial arrangements made for children.

What Makes a Pre-Nuptial Agreement More Likely to Be Upheld?

Although no agreement can guarantee a particular outcome, certain factors make it much more likely that a court will respect the parties’ wishes.

• Full Financial Disclosure – Both parties should openly disclose their financial circumstances so each understands exactly what assets and liabilities exist before signing.
• Independent Legal Advice – Each person should receive advice from their own solicitor to ensure they fully understand the agreement and its consequences.
• No Pressure or Duress – The agreement must be entered into voluntarily. Neither party should feel pressured into signing or be presented with the document at the last minute.
• Honest Information – The agreement should be based on accurate financial information, with no fraud, concealment or misrepresentation.
• Fairness – Perhaps most importantly, the agreement must be fair. It should not leave one person in financial hardship or fail to meet their reasonable needs following separation.

Why Legal Advice Matters

A professionally drafted pre-nuptial agreement gives you the best possible chance of your wishes being respected if your relationship ends.

Every couple’s circumstances are different, so a pre-nup should always be tailored to reflect your finances, family situation and future plans.

How Marlborough Law Can Help

At Marlborough Law, we work closely with couples to prepare bespoke pre-nuptial agreements that reflect their individual circumstances and provide as much certainty as the law allows.

Whether you want to protect family wealth, safeguard a business, preserve inherited assets or simply bring clarity to your financial future, our experienced family law team can guide you through the process and provide independent legal advice every step of the way