Step‑by‑step: how to draft a prenup with solicitors

A carefully drafted prenuptial agreement gives couples clarity about finances and reduces conflict if the marriage ends. In England and Wales prenups are not automatically binding but they carry substantial weight if each party entered the agreement freely with full financial disclosure and independent legal advice. This guide walks you through a practical, solicitor‑led process for drafting a robust prenup, explains what documents you need, and offers tips to improve enforceability.

Why use solicitors to draft a prenup

Solicitors bring legal expertise on family law, case law and drafting precision. Courts pay close attention to evidence that each party received independent legal advice. A solicitor will identify legal risks, frame fair provisions, and ensure the document meets the procedural markers courts expect, such as disclosure schedules solicitor certificates and clear signatures. Using solicitors reduces the chance of avoidable mistakes that could undermine the agreement later.

Overview of the drafting journey

– Initial planning and preparation

– Instruction and appointment of solicitors

– Full financial disclosure and document collection

– Preliminary negotiations and objectives setting

– Drafting the agreement and schedules

– Independent advice and negotiation rounds

– Finalisation signing and record keeping

– Post‑signing review and future updates

Step 1 — initial planning and mutual discussion

Start by discussing objectives openly and sensitively. Agree whether you want to protect premarital assets safeguard a business ring‑fence inheritances or set out arrangements for pensions and maintenance. Decide whether you want a comprehensive detailed agreement or a short framework that deals with major issues only.

Practical tip: keep the first conversation constructive and non‑confrontational. Frame a prenup as financial planning rather than mistrust.

Step 2 — instructing solicitors independently

Each party should instruct their own family law solicitor. Choose solicitors experienced in nuptial agreements and with good reputations for negotiation and drafting. Confirm their experience with cases in England and Wales and ask whether they routinely provide solicitor certificates confirming independent advice.

Practical tip: agree an approximate timetable and likely fees at the outset to avoid surprises. Many firms offer fixed fees for straightforward prenups and bespoke quotes for complex matters.

Step 3 — prepare and exchange full financial disclosure

Gather financial information early. Each party must provide full and frank disclosure of assets liabilities income and contingent rights. Typical documents include:

– recent bank and building society statements covering at least six months

– property deeds mortgage statements and valuations where available

– investment statements share certificates ISAs and bonds

– company accounts management accounts shareholdings and shareholder agreements for any business interests

– pension statements and details of retirement benefits

– tax returns and correspondence with HMRC where relevant

– details of expected inheritances trusts or gifts and supporting documentation

– details of debts credit cards loans guarantees and liabilities

Put together a clear schedule of assets and liabilities and attach the supporting documents as schedules to the draft agreement. Label each document and keep originals or certified copies.

Step 4 — identify objectives and draft heads of terms

Work with your solicitor to prepare heads of terms that record the main points you want the prenup to cover. Heads of terms serve as a roadmap for negotiation and for the solicitor drafting process. They should address:

– which assets remain separate and which become matrimonial

– treatment of the family home and occupation rights on separation

– pension treatment and retirement sharing intentions

– protection for businesses professional practices or inherited assets

– approaches to spousal maintenance and lump sum formulas where appropriate

– arrangements for children including interim support and capital trusts

– review triggers and sunset clauses for future events

Keep heads of terms clear and focused. Use objective formulas where possible such as percentage splits or income bands rather than vague promises.

Step 5 — valuation and specialist reports where needed

If either party holds a business unique asset or overseas property obtain professional valuations early. Valuers, accountants and pension actuaries provide objective figures that reduce disputes later. For businesses agree valuation methodology in advance, such as earnings multiples discounted cash flow or net asset approaches.

Practical tip: agree a panel of acceptable valuers and a tie‑breaker mechanism in case experts reach different conclusions.

Step 6 — solicitor drafting and attachment of schedules

Your solicitor will draft the prenup using the heads of terms and the disclosed financial schedules. The draft should include:

– an introductory recitals section setting out context and dates

– a clear statement of purpose and scope of the agreement

– definitions for key terms such as separate property matrimonial property and net income

– operative clauses setting out treatment of assets pensions businesses inheritances debts and maintenance

– tax and costs clauses to clarify responsibility for tax liabilities and legal fees

– review, update and sunset clauses with triggers for revision

– dispute resolution provisions requiring negotiation mediation or arbitration before court action

– signatures witnesses and solicitor confirmation certificates

Attach the financial disclosure schedules as exhibits. Make sure the draft records the process and documents exchanged so a court can see the parties negotiated transparently.

Step 7 — negotiation rounds and fairness checking

Exchange drafts through your solicitors and allow reasonable time for each party to review. Expect at least one round of amendments. Solicitors will test fairness and point out clauses that may leave one party in real need. Balance protection with reasonable provision for the other spouse. If negotiations stall consider mediation or a neutral expert who can propose fair middle ground.

Practical tip: keep records of emails, meeting notes and draft versions. Judges look for evidence of informed negotiation, not a signed blank.

Step 8 — independent legal advice and certificates

Before signing each party must receive independent legal advice. Solicitors should provide written confirmation that they advised their client on the effect of the agreement on rights and obligations and on the implications of not signing. Include solicitor certificates in the final documents. These certificates form strong evidence that each party understood the deal and entered it voluntarily.

Step 9 — timing and signing formalities

Sign the final agreement well in advance of the wedding. Avoid signing at or immediately before the ceremony to reduce the risk of an allegation of pressure. Signatures should be witnessed, dated and supported by the solicitor certificates. Each party should keep an original signed copy and provide a copy to their solicitor.

Practical tip: store copies securely such as with solicitors’ files or a safe deposit box and provide certified copies to executors if the prenup interacts with wills.

Step 10 — record keeping and evidence of process

Keep a comprehensive file that documents the whole process: heads of terms correspondence valuations solicitors’ letters certificates and final signed documents. Courts often examine the negotiation trail when testing enforceability. Well organised records show transparency and voluntary informed consent.

Step 11 — review, updates and postnuptial agreements

Life changes can make a prenup obsolete. Include review triggers such as the birth of children a business sale inheritance or a significant change in income. If parties need to update the agreement, create a postnuptial agreement using the same rigorous process: full disclosure fresh independent legal advice and recorded consent.

Practical tip: schedule a periodic review every three to five years if you want ongoing certainty.

Common pitfalls to avoid

– signing too close to the wedding which raises duress concerns

– inadequate disclosure especially pensions business interests or foreign assets

– vague drafting that leaves key terms to later interpretation

– failing to get independent legal advice and solicitor certificates

– ignoring pension rights which can form a substantial part of wealth

– omitting dispute resolution or review mechanisms that handle change

How courts assess prenups in England and Wales

Since Radmacher v Granatino courts respect prenups that reflect informed consent, full disclosure and fairness. Judges will assess whether the prenup left any party in need, whether independent advice occurred, whether disclosure was adequate and whether the agreement remains fair in the light of changed circumstances. Following the steps above puts your agreement in the best position to carry weight with a court.

Conclusion

Drafting a prenup with solicitors in England and Wales requires planning, transparency and careful drafting. Start early, exchange full disclosure, obtain valuations when needed and secure independent legal advice for both parties. Use clear heads of terms, objective formulas and review mechanisms to build a document that reflects fair compromise and stands up to scrutiny. Good preparation protects both partners and reduces future conflict, giving you greater certainty as you plan your life together.

If you want help beginning the prenup process contact us, experienced family law solicitors who specialise in nuptial agreements and can guide you through each step.

At Alexander JLO we have many years of experience of dealing with all aspects of family law and will be happy to discuss your case in a free no obligation consultation. Why not call us on +44 (0)20 7537 7000, email us at info@london-law.co.uk or get in touch via the contact us button and see what we can do for you?

This blog was prepared by Peter Johnson on 5th November 2025 and is correct at the time of going to press. With over forty years of experience in almost all areas of law Peter is happy to assist with any legal issue that you have. He is widely regarded as one of London’s leading divorce lawyers. His profile on the independent Review Solicitor website can be found Here. To follow up on any of the above please contact Guy Wilton of our family department. Guy has wide experience of acting for the firm’s clients, their family and their businesses. Guy’s experience as a lawyer started in the Northern and Welsh Circuits, including the Liverpool Courts, where he represented numerous clients after being called to the Bar, before opting to join Alexander JLO in 2017 and qualifying as a solicitor in 2024. He is a highly experienced family lawyer with a particular interest in financial remedy proceedings and child contact disputes.

 Guy’s profile on the independent Review Solicitor website can be viewed here.