Since same-sex marriage became law in England & Wales in 2014, married same-sex couples in the UK have exactly the same legal rights and responsibilities as everyone else – and that includes prenuptial agreements. The law makes no distinction. This guide explains how prenups work for same-sex couples, when they make sense, and how to do one properly.
The same law, the same protection
A prenup works in precisely the same way for a same-sex couple as for any other couple. It sets out how property, savings, businesses, debts and inheritances are treated, and what happens if the marriage ends. The same principles apply: a prenup is not automatically binding, but a fair agreement made properly is given significant weight by the courts under the same Radmacher principles (see are prenups legally binding?). The same two backstops remain, too – meeting needs and providing for any children.
Civil partnerships as well as marriage
The same approach applies to civil partners. A couple in a civil partnership can make an agreement dealing with what happens if the partnership is dissolved, on the same basis as a married couple’s prenup. Whether you are marrying or entering a civil partnership, the document does the same job and follows the same good practice.
When a prenup makes sense for a same-sex couple
The reasons are identical to those for any couple:
- Protecting a home or other pre-marital property.
- Protecting a business or professional practice.
- Ring-fencing an inheritance or family wealth.
- Providing for children from a previous relationship (see blended families).
- Simply wanting clarity where there is a difference in income or wealth.
Our guide to who should consider a prenup applies equally.
A note on children and modern families
Same-sex couples building a family – through adoption, surrogacy or a previous relationship – are in exactly the same position as anyone else: a prenup cannot fix arrangements or maintenance for children, whose welfare is always for the court (see prenups and children). What a prenup can do is bring clarity to the adults’ finances, which often makes co-parenting arrangements calmer if the relationship ends.
Doing it properly
The same good practice holds for same-sex couples as for anyone else: full and frank disclosure, independent legal advice for each partner, fair terms, and signing in good time before the wedding (see what to include). A prenup is a practical, equal tool for same-sex couples to plan their future with confidence.
Prenups for same-sex couples in the UK: the same rules
For same-sex couples in the UK, a prenup follows exactly the same rules as for anyone else – there is no separate regime. It is not automatically binding, but a fair agreement made with full disclosure, independent advice and good timing is given significant weight. The reasons to make one are identical too: protecting pre-marital assets, a business or an inheritance, or providing for children from a previous relationship.
Pre-2014 relationships and converted partnerships
Same-sex couples sometimes have a longer shared history than their marriage date suggests – a civil partnership entered into before 2014 and later converted to marriage, or years of cohabitation beforehand. This can matter on divorce, because the length of the relationship influences how assets are viewed. A prenup lets you set out clearly how assets built up over the whole relationship – not just since the wedding – should be treated, avoiding argument about where the "marriage" really began (see matrimonial vs non-matrimonial property).
The same practical route
Making a prenup is the same straightforward process for same-sex couples as for anyone else: exchange full disclosure, agree fair terms, take independent advice each, and sign in good time before the wedding. Many couples draft the agreement online to keep costs down and then take focused advice on the finished document (see online prenup vs solicitor and how much a prenup costs).
The legal background in brief
The Marriage (Same Sex Couples) Act 2013 brought same-sex marriage into effect in England & Wales from March 2014, and from that point married same-sex couples have stood in exactly the same legal position as everyone else, including on divorce. The financial remedies available on divorce flow from the same Matrimonial Causes Act 1973, and the same case law – above all Radmacher v Granatino (2010) – governs how much weight a prenup carries. There is no separate, lesser regime for same-sex couples and no separate, lesser status for their prenups. The same two backstops apply to everyone: an agreement cannot be used to leave a partner unable to meet their needs, and it cannot override the court’s duty to any children.
A worked example
Imagine two men marrying, one of whom owns a flat bought years before they met and has built up a workplace pension, while the other is earlier in his career. The situation is no different in principle from any couple with an imbalance of assets. A prenup lets them record that the flat and the pre-marital pension are protected as separate property, while agreeing to share what they build together after the wedding. Made with full disclosure, independent advice each and fair terms, it will carry exactly the same weight as any other couple’s agreement. The reasons to make one – protecting property, a business or an inheritance – are identical (see what to include).
Surrogacy, adoption and modern families
Many same-sex couples build their families through adoption, surrogacy or from a previous relationship, and it is worth being clear about what a prenup can and cannot do here. A prenup deals with the adults’ finances; it cannot fix arrangements for children or pre-decide their maintenance, because a child’s welfare is always for the court and cannot be contracted away (see prenups and children). What it can do is bring clarity and calm to the money side, which often makes co-parenting far smoother if the relationship ends. For couples where one partner has children from before, the balancing act is the same as in any blended family.
Converting a civil partnership, and the length of the relationship
One point genuinely specific to same-sex couples is worth drawing out. Many couples formed a civil partnership before same-sex marriage existed and later converted it to marriage, or lived together for years before either was possible. On divorce, the length of the relationship influences how assets are viewed – a long relationship is not treated as if it began on the wedding day. That can cut both ways, and it is exactly the sort of thing a prenup can pin down: recording clearly how assets built up across the whole relationship, not just since the ceremony, should be treated, so no one has to argue years later about where the "marriage" really began (see matrimonial vs non-matrimonial property).
Beyond that, the process and the safeguards are identical to any other couple’s. Exchange full and frank disclosure, take separate independent legal advice, keep the terms fair, sign in good time – the Law Commission’s 2014 report suggested at least 28 days before the wedding – and execute the agreement as a deed. As with every prenup in England & Wales it is not automatically binding, but a fair agreement made this way is given significant weight, and it cannot be used to leave a partner in need (see when to sign a prenup).
Common mistakes to avoid
A few missteps come up often, and none is unique to same-sex couples – but each is worth guarding against. The first is leaving it too late: an agreement pushed under someone’s nose in the final days before the wedding invites an argument that it was signed under pressure, which is why the Law Commission’s 2014 report suggested signing at least 28 days ahead (see when to sign a prenup and last-minute prenups). The second is skimping on disclosure – an agreement built on an incomplete picture of one partner’s finances is far easier to challenge later. The third is trying to write out a partner’s needs entirely; the court will not enforce terms that leave someone unable to meet their needs, so a fair agreement is a stronger one than a one-sided one (see when a prenup is unfair). Finally, some couples forget that marriage revokes an existing will, so it is worth updating your will at the same time so your plans for death and divorce are consistent.
Keeping the agreement current over time
A prenup is not a one-off document to sign and forget. Lives change – you may buy a home together, one of you may start a business, children may arrive through adoption or surrogacy, or an inheritance may land. An agreement that was fair on the wedding day can drift out of step with reality over a long marriage, and an agreement that no longer reflects your circumstances carries less weight. Building in a review clause – a commitment to revisit the terms at set intervals or after major life events – keeps the document alive and fair. If circumstances change dramatically after the wedding, a postnuptial agreement can update or replace it entirely, and it works on the same principles (see prenup vs postnup).
Same-sex prenup FAQs
Are prenups legal for same-sex couples in the UK?
Yes – identical rights and access since same-sex marriage became law (see are prenups legally binding?).
Do same-sex couples need a different kind of prenup?
No – the same agreement and good practice apply (see what to include).
Do civil partners get the same protection?
Yes – an agreement works on the same basis for civil partners as for married couples (see who should consider one).
Can a same-sex prenup deal with children?
It deals with the adults’ finances; arrangements for children are always for the court (see prenups and children).
How do same-sex couples make a prenup properly?
With full disclosure, independent advice each, fair terms and good timing (see independent legal advice).
Can we convert a civil partnership and keep our prenup?
Yes – an agreement can be drafted to apply on either dissolution or divorce, and converting a civil partnership to marriage does not undo it. It is sensible to have it reviewed at the point of conversion to confirm it still reflects your wishes (see is my prenup still valid?).
Does our prenup need to be signed as a deed?
Executing the agreement as a deed, signed and independently witnessed, is best practice for any prenup in England & Wales and helps show it was entered into formally and deliberately (see prenups executed as a deed).
Create your prenuptial agreement online
UK Prenup lets couples in England & Wales create a clear, fair prenuptial agreement online from £199, with your document generated instantly as a PDF. See how it works or get started.
UK Prenup is not a law firm and does not provide legal advice. A prenuptial agreement in England & Wales is not automatically binding, and both partners should take independent legal advice before signing.