OLS Solicitors Blog
Prenuptial Agreements UK: What Couples Need to Know | OLS Solicitors

Wedding Season Is Here – Should You Get a Prenuptial Agreement?
As summer sets in and wedding season is in full swing, thousands of couples across the UK are preparing for the most memorable day of their lives. But while you’re busy planning the dress, the venue, and the honeymoon, there’s one important conversation many couples forget to have:
What happens if things don’t go to plan?
This is where a prenuptial agreement – or prenup – comes in.
Why Talk About a Prenup During Wedding Season?
We know it’s not the most romantic topic. But a prenup isn’t about expecting your marriage to fail – it’s about protecting each other, being transparent, and starting your life together on strong, honest foundations.
In fact, more and more modern couples are seeing prenups as a sign of maturity and mutual respect.
What Is a Prenuptial Agreement?
A prenuptial agreement is a legal document signed by a couple before marriage that sets out how their assets, property, and finances would be divided if they later separate or divorce.
A prenup can cover things like:
- Who owns what going into the marriage
- What happens to property, savings, or inheritances
- Protection for children from previous relationships
- Debts and liabilities
- Business ownership and income
Are Prenuptial Agreements Legally Binding in the UK?
Under UK law, prenuptial agreements are not automatically legally binding — but courts will typically uphold them if they are fair, freely entered into, and both parties received independent legal advice.
This was confirmed by the Supreme Court in the landmark case Radmacher v Granatino [2010], which established that courts should give “decisive weight” to a prenuptial agreement provided it is entered into freely, with full understanding, and does not prejudice the needs of any children.
A well-drafted prenup that meets legal standards is therefore very likely to be upheld by a court during divorce proceedings.
What can make a prenup invalid? A court may set aside a prenup if it was signed under duress, if either party did not receive independent legal advice, if financial disclosure was incomplete, or if the agreement is deemed fundamentally unfair. This is why professional drafting matters.
5 Reasons a Prenup Might Be Right for You
- You’ve built up savings, property, or a business before marriage
- You’re remarrying and want to protect children or an inheritance
- There’s a significant difference in income, assets, or debts between you
- You want clarity and to avoid costly disputes if you ever separate
- You value financial transparency and independence in your relationship
Prenuptial Agreement vs Postnuptial Agreement: What’s the Difference?
A prenuptial agreement is signed before the wedding. A postnuptial agreement covers the same ground but is entered into after you are already married. Both can be equally valuable — and our family law solicitors in Llanelli and family law solicitors in Swindon can help you with either.
When Should You Sign a Prenup?
Ideally, a prenup should be signed at least 28 days before the wedding. Signing too close to the ceremony can raise questions about whether either party felt pressured — which could later be used to challenge the agreement in court.
The best time to get a prenup is when you’re both happy and planning your future together. It’s a calm, collaborative process where you can make decisions clearly — not during the stress of a breakup.
Protect Your Future – Together
A prenup isn’t about mistrust. It’s about being proactive and protecting your partnership. Think of it like insurance: you hope never to use it, but you’re glad it’s there if you ever need it.
Our guide to prenuptial agreements in the UK has more detail on how the process works and what to expect.
Our Prenuptial Agreement Service
If you’re getting married and want to protect your assets — or simply understand your options — we can help.
- ✓ Fixed-fee prenuptial agreements from £899 plus VAT
- ✓ Expertly drafted by qualified family law solicitors
- ✓ Tailored to your unique situation
- ✓ Fast-track service delivered within 7 working days
Speak to our team today or call us on 01554 756952.
Frequently Asked Questions About Prenuptial Agreements
How much does a prenuptial agreement cost in the UK?
At OLS Solicitors, we offer fixed-fee prenuptial agreements from £899 plus VAT, with no hidden charges.
How long does a prenuptial agreement take?
Our fast-track service is delivered within 7 working days of receiving all necessary information from both parties.
When should we sign a prenup?
We recommend signing at least 28 days before your wedding date. This avoids any suggestion that the agreement was signed under duress, which could be used to challenge it later.
Can a prenup be challenged in court?
Yes. A prenup can be set aside if it was signed under pressure, without independent legal advice, or if the financial disclosure was incomplete. Professional drafting by a qualified solicitor significantly reduces this risk.
Does a prenup cover future assets?
Yes — a well-drafted prenuptial agreement can include provisions for future earnings, business growth, and inheritances received after marriage.
Do both parties need a solicitor?
For a prenup to be most likely upheld by a court, both parties should receive independent legal advice from separate solicitors. We can advise on this as part of our service.
What is the difference between a prenup and a postnup?
A prenuptial agreement is signed before marriage; a postnuptial agreement is signed after. Both serve a similar purpose and both can be drafted by our family law team in Llanelli or Swindon.
