How UK Prenup Works: Your Prenuptial Agreement Online in Four Steps
Set out both partners' finances online, your partner confirms their own side, and an independent family-law solicitor advises you before you sign. £750 with advice for one of you, or £1,300 with a solicitor for each of you.
Create Your Prenuptial Agreement in 4 Simple Steps
Complete the Form
Fill in our form: your own details, assets, debts and income, your partner's name and email, and the terms you propose. Choose your package and check out securely; your partner adds their own details and finances from their own login.
We Draft Your Prenup
Your prenup is generated straight away from your answers, written by UK Prenup (not a law firm) around the principles the courts apply, as a draft for you both to review.
Partner Confirms
Your partner gets a secure link to review the agreement, confirm their own financial disclosure and agree to the terms. Once they confirm, we email you a link to book your solicitor session.
Take Advice & Sign
Your solicitor advises you (at £1,300, your partner's advises them) and any changes are made. Once the advice is recorded and the DRAFT marking has gone, you both sign in front of a witness, well before the wedding.
What the Court Looks For
A prenuptial agreement isn't automatically binding in England and Wales. Under Radmacher v Granatino [2010] a court gives effect to an agreement you both entered freely, with a full appreciation of its implications, unless it would be unfair to hold you to it. These are the four things it looks for.
Independent Legal Advice
Each partner should take advice from their own solicitor, at a different firm from the other's; sharing one adviser weakens it. Nothing stops you signing without advice, or within 28 days of the wedding, but either makes it easier to challenge.
Full & Frank Financial Disclosure
Both partners set out all their assets, debts, income and financial prospects in full, each on their own behalf. Hiding or understating assets is one of the most common reasons a prenup is later challenged, so the schedules are worth getting right.
Sign 28 Days Before the Wedding
Sign well ahead of the big day: the Law Commission recommended at least 28 days before, so neither partner feels under pressure. That is guidance rather than a legal rule, but an agreement signed at the last minute is easier to challenge.
Freely Entered & Fair to Both
The agreement must be entered into freely, without duress or undue pressure, with a full appreciation of what it means, and it must be fair. Under the Matrimonial Causes Act 1973 a court can still step in if the terms would leave either partner, or any children, in need.
Once your advice is recorded
Signing it, keeping it, and where the law stands
How to Sign It
Sign only once the agreement is ready to sign: your partner has confirmed it, the advice your package covers is recorded, and the DRAFT marking has gone. Your dashboard tells you when that is. Then read that version through together and each sign it with a clear pen-and-ink signature. It is executed as a deed, so each of you must sign in the physical presence of an independent adult witness (not each other; we recommend not a family member), who watches you sign and then signs straight away. A witness watching by video call is not valid for a deed.
Keep It Safe, and Revisit It
The execution page sets out the witness blocks for you. Keep a signed original each, somewhere safe, and consider giving a copy to your advisers: we don't hold a copy of your signed agreement.
If the wedding moves to more than about a year after you sign, or your finances change materially before it, update the agreement and sign it again. After the wedding, revisit it together if your circumstances change: a new child, a house move or a big change in finances is a good moment to check it still reflects your wishes.
Could Prenups Become Fully Binding?
Back in 2014 the Law Commission proposed "qualifying nuptial agreements" that would be binding by law where key safeguards are met, and it returned to the subject in its December 2024 scoping report on financial remedies.
In 2026 the Ministry of Justice consulted on introducing them in A fairer end to relationships (CP 1581, 5 June to 14 August 2026), with safeguards including disclosure and independent legal advice for each party and signing at least 28 days before the wedding.
The consultation has closed and the government has not yet responded, so the law is unchanged: prenups are not binding by statute, and meeting the criteria above is what matters most. (Position as at October 2026.)
What a Prenup Can and Can't Do
It can set out how the family home, other property, savings, investments, pensions, business interests and debts would be divided, and ring-fence what you bring into the marriage: an inheritance, a family business, or property and savings you owned beforehand. Prenups aren't just for the wealthy; they're widely used where one partner owns property or a business, is expecting an inheritance, is marrying for a second time or has children from a previous relationship.
It can't override the court's duty to meet both partners' financial needs, it can't decide the arrangements or maintenance for any children, whose welfare comes first, and it can't impose lifestyle conditions. The court always has the final say, so to carry real weight the agreement must be fair to both of you. See what to include in a prenup.
Common Questions About Prenuptial Agreements
Quick answers to the questions we hear most. For the full list, visit our FAQ page.
For the full picture, read: what a prenup is · do you need one · prenup vs postnup · how to get a prenup · can you write your own · what to include
Our prenup service is £750 with independent legal advice for one of you, or £1,300 with a solicitor for each of you. Both include your agreement prepared online, a personal prenup dashboard with step-by-step prompts, ready-made disclosure checklists for both partners, and the solicitor's written advice letter, with a certificate where they are satisfied you understand the agreement. There are no hidden fees or subscriptions. Changes after advice aren't included. If you change the agreement after your solicitor has advised, they advise you again for £180 including VAT (£150 plus VAT), paid to them directly. For what a prenup costs on every route, see how much a prenup costs in the UK.
Most couples complete the online details in one sitting, around 15–30 minutes with your financial details to hand, and the draft agreement is prepared straight away. Your partner then reviews and confirms it, your solicitor session is booked and held, and any changes are made before you sign, so allow about ten weeks end to end. Agreements signed well in advance, never at the last minute, carry the most weight.
A template gives you wording. It doesn't check that you've each disclosed everything, that the terms suit you both, or that either of you has been advised. Our guided online prenup, from £750, has both of you set out your finances, includes an independent solicitor's advice before you sign, and walks you through signing. If you're weighing up doing it yourselves, our guide to can you write your own prenup? sets out the risks.
Prenuptial agreements aren't automatically binding in England and Wales, but a court is likely to give significant weight to one that meets the criteria set out in Radmacher v Granatino. To give your prenup the best chance of being upheld, both partners should take their own independent legal advice from separate solicitors, exchange full and frank financial disclosure, sign the agreement at least 28 days before the wedding, and make sure the terms are fair and don't leave either partner or any children in financial need.
Ready to Create Your Prenup?
Create your prenuptial agreement online today, clear and private, from £750 with an independent solicitor's advice before you sign. Give both partners peace of mind by putting things in writing before the big day.