Do I need a prenup?

If you’re planning a wedding, you may be asking yourself “do I need a prenup?”  It’s a common question for couples who want some certainty around their finances should their marriage ever end.

Prenuptial agreements are no longer just for the very wealthy.  More and more couples are asking “do I need a prenup?” simply because they want clarity, protection and peace of mind about their financial future.

And of course, having a prenup in place doesn’t mean you expect the marriage to fail.  Instead, it’s a practical way to plan ahead, protect assets, and reduce the risk of disputes later on.

What is a prenup?

If you’re wondering do I need a prenup, it helps to understand what a prenuptial agreement actually is.

A prenuptial agreement (often called a prenup) is a written agreement a couple can enter into before marriage.  It sets out how finances, assets, and sometimes debts will be treated if the marriage ends through separation or divorce.

A prenup can deal with:

• Assets owned before marriage
• Property, savings, and investments
• Business interests or company shares
• Expected or future inheritances
• Responsibility for debts

Understanding what a prenup can cover is often the first step in answering the question as to whether you need a prenup and an informal conversation with a family lawyer is often the best way to answer any questions you may have.

Do I need a prenup if I don’t have many assets?

A frequent misconception is that prenups are only relevant to high-net-worth individuals.  In reality, many people just want the certainty a prenup offers.

You may still benefit from a prenup if:

• One of you owns a property or expects to in the future
• You anticipate receiving an inheritance
• You run a business or plan to start one
• There is a difference in income or earning potential
• One or both of you have children from a previous relationship

Even without significant assets now, a prenup will clarify what should remain separate and what should be shared, helping to avoid disagreements later should the marriage break down.

Do I need a prenup if they’re not legally binding?

In England and Wales, prenuptial agreements are not automatically legally binding.  However, if you’re asking do I need a prenup, it’s important to know that courts are taking them increasingly seriously.

Since the Supreme Court decision in Radmacher v Granatino (2010), a prenup is likely to carry significant weight as long as the agreement is fair, both parties entered into it freely, there was full financial disclosure, each person had independent legal advice and the needs of any children are properly met.

While a prenup cannot override the court’s discretion entirely, a well-drafted agreement can be highly persuasive.

When should I decide if I need a prenup?

Timing is key.To strengthen its effectiveness, a prenup should ideally be signed at least 28 days before the wedding. Leaving it too late can raise arguments of pressure or lack of choice, which may weaken the agreement if it is later reviewed by a court.

Do I need a prenup to decide child arrangements?

The short answer is no. However, if your prenup is likely to be used to support the best interest of your children, it’s important to know that:

• Child arrangements and child maintenance cannot be fixed by a prenup
• The court will always prioritise a child’s welfare
• Any agreement that is clearly unfair may be disregarded

Again, a conversation with an experienced family lawyer will provide the context you need to make the best decision as to whether you and your children would benefit from a prenup.

Do I need a prenup if I trust my partner?

This is one of the most commonly asked questions.  Surely you don’t need a prenup if you trust your partner?  Again, asking do I need a prenup does not mean you lack trust; it just means you want to have the highest level of certainty for the future as none of us know exactly what is waiting for us.

The positives are that a prenup often encourages open conversations about finances, expectations and future plans.  In fact, in our experience, many couples find that the process improves transparency and understanding, rather than undermining trust.

So, do I need a prenup?

There is no single answer.  As with all family law issues, it will depend on your circumstances and what is best for you.  However, you may want to seriously consider a prenup if:

• You own property or valuable assets
• You want to protect family wealth or inheritances
• You have children from a previous relationship
• You own or plan to run a business
• You want certainty around financial arrangements

The best advice we can give you is to  get in touch  with our family law solicitors in Sheffield.  They will provide the clear, practical advice you’ll need to work out if the answer to the question “do I need a prenup?” is yes for you.

Published 24/02/2026