By 
Family law guide
Part of: Same-Sex Divorce and Dissolution
On civil partnership vs marriage, the law of England and Wales gives you almost exactly the same rights either way. The differences that remain are narrow, specific and short enough to list. Matching legislation sets out the financial powers a court has when either one ends. The tax and inheritance rules also sit in the same sections of the same Act. What still differs is how each one is formed and whether you may include a religious element. They also differ on whether you can swap one for the other, and on how the relationship travels. Finally, one ground of annulment exists for some marriages but for no civil partnership at all. This page covers the law of England and Wales only.
Our family law specialists assist and advise both couples choosing between the two and couples untangling one. If the relationship is already ending, our guide to the dissolution of a civil partnership covers that process in full.
Five things, and money is not one of them. Everything below the divider in this table is identical in law. That is the reassuring half of the answer, but it is also the half that misleads people. Because the two are interchangeable on the money, the costly mistakes are never about which one you picked. Instead, they sit in what you wrote down, where you are living, and whether anyone closed off the financial claims.
| The point | Marriage | Civil partnership |
|---|---|---|
| How it is made | Spoken vows before witnesses | Signing a document; no vows required |
| Religious content at the ceremony | Permitted, and a religious ceremony is possible | Not while the registrar is officiating (s.2(5)) |
| Swapping to the other | No route to a civil partnership | Same-sex only, one way, for a fee |
| Non-consummation as a ground of annulment | Opposite-sex marriages only | Never available |
| Recognition when you travel | Recognised more consistently | Whether either is available or recognised “depends on local laws” (GOV.UK) |
| What the paperwork is called | Divorce; marriage certificate | Dissolution; civil partnership certificate |
| Identical in law — everything below this line | ||
| Court’s financial powers when it ends | Identical — Schedule 5 mirrors Part 2 of the 1973 Act | |
| Inheritance tax and intestacy | Identical — one exemption covers both (IHTA 1984, s.18), and the intestacy rules read “spouse or civil partner” throughout (AEA 1925, s.46) | |
| Parental responsibility and children | Identical — parents “married to, or civil partners of, each other at the time of his birth… shall each have parental responsibility” (Children Act 1989, s.2(1)) | |
| Pension survivor benefits | Identical — the exception that let a scheme reduce a same-sex survivor’s pension no longer applies to survivor benefits (SI 2023/1308) | |
| Deciding for a partner who loses capacity | Identical; neither status gives an automatic right. That authority comes from a lasting power of attorney (Mental Capacity Act 2005, s.9) or a court appointment. “Next of kin” has no statutory meaning in England and Wales. | |
| Whether a court must end it | Identical — both need a court order | |
Read the lower half of that table twice, because it answers the question most people are really asking. When it comes to civil partnership vs marriage, nobody is choosing between two different levels of legal protection. They are choosing between two labels attached to the same set of rights. On the tax side in particular the two are interchangeable. Our guide to the tax benefits of marriage therefore applies to a civil partnership word for word. Where a same-sex relationship is ending, our guide to same-sex divorce and dissolution covers the ground this page does not.
Because Parliament copied the rules across rather than writing new ones. Schedule 5 to the Civil Partnership Act 2004 carries the heading “Financial relief: provision corresponding to provision made by Part 2 of the Matrimonial Causes Act 1973”. The word “corresponding” is doing real work there.
The same families of order are available in both. A court can order periodical payments and lump sums. It can adjust who owns property and order a sale. It can also make a pension sharing order, splitting one person’s pension rights and giving a share to the other. Those four powers are Parts 1 to 4 of the Schedule (Civil Partnership Act 2004, Sch.5).
Those factors sit separately, in Part 5 of the Schedule. Its heading reads “Matters to which court is to have regard under Parts 1 to 4A”. Paragraph 20 requires the court to “have regard to all the circumstances of the case, giving first consideration to the welfare, while under 18, of any child of the family who has not reached 18” (Sch.5, Part 5, para 20). That is the civil partnership counterpart of the list a court applies on a divorce.
Two practical consequences follow, and both catch people out. The first is that a civil partnership is not a lighter commitment. If you are in one and it ends, the financial claims are the full set. You will need a financial consent order to close them off properly. The second is that a pre-nuptial agreement and its civil partnership equivalent sit in the same position. Neither binds a court. Even so, a court gives real weight to both when the couple made them properly, with disclosure on each side.
None of this reaches couples who live together without doing either. There is no such thing as a common law spouse, however long you have been together. Our guide to common law marriage sets out what that actually leaves you with. If you will not formalise the relationship, a cohabitation agreement has to do the work instead.
In how each is brought into existence, and in how it is undone. Neither difference touches the money, but both touch things people care about a great deal.
A marriage is made by saying something. A civil partnership is made by signing something.
Both need a court order. The vocabulary differs and, in one narrow respect, so do the grounds.
That last point is the one people are most often told wrongly, so it is worth being exact. Section 50 of the Civil Partnership Act lists what makes a civil partnership voidable. The first ground is absence of valid consent through duress, mistake or unsoundness of mind. Others are mental disorder making someone unfit for civil partnership, and pregnancy by another person at the time of registration. Finally, there are two grounds concerning gender recognition certificates. Non-consummation is not on that list and never has been.
For marriage it is on the list, but with a limit that people miss just as often. That limit is section 12(2) of the Matrimonial Causes Act 1973. It says the two non-consummation grounds “do not apply to the marriage of a same sex couple” (s.12(2)). So on this point the real divide is not civil partnership vs marriage at all. The ground survives only for opposite-sex marriages. Our guide to marriage annulment covers what consummation means in law. It also sets out the remaining grounds and the time limits that go with them.
One direction only, and only for same-sex couples. A same-sex couple can convert their civil partnership into a marriage in England and Wales. Nothing converts a marriage into a civil partnership. Opposite-sex civil partners cannot convert either. GOV.UK states in terms that “You cannot convert an opposite-sex civil partnership to a marriage in England and Wales”.
The detail that matters most is what happens to the date. On conversion you get a marriage certificate “dated when your civil partnership was formed”. The law treats the marriage as having run from the original registration, not from the day you converted. On a financial claim, length of relationship is one of the things a court weighs. So for anyone whose rights depend on how long the relationship has lasted, that backdating is the whole point.
GOV.UK sets out the fees. They are £55 to convert, £12.50 for the marriage certificate and £33 for an appointment if you want a ceremony. All three were correct on 24 September 2026.
Perhaps you are an opposite-sex couple in a civil partnership and you want to marry. There is no conversion route open to you. Ending the civil partnership and then marrying is a different proposition entirely, with consequences for the financial claims. It is not a step to take on the strength of a web page.
Not reliably, and this is the most practical difference on the page. Other countries recognise marriage more consistently than civil partnership. Whether a civil partnership counts for anything in another country is a question for that country’s own law. GOV.UK puts it plainly for couples going the other way. Whether you can marry or register a civil partnership somewhere “depends on local laws”. GOV.UK also lists wanting “a same-sex marriage or civil partnership and these are not recognised there” as a reason you may not be able to (GOV.UK, getting married or registering a civil partnership abroad). Another country may treat a partnership formed here as equivalent to marriage, as something lesser, or as nothing at all.
That gap only becomes visible when something goes wrong a long way from home. The moments to think about are the unglamorous ones. Think of a hospital abroad deciding who counts as next of kin, or an employer’s overseas relocation package defining “spouse”. Think of an immigration route in another country, or a foreign bank or pension administrator asking for a marriage certificate. Then there is the death of one partner while you are both outside the United Kingdom.
Perhaps one of you holds another nationality, or there is a realistic chance of living or working overseas. If so, take advice on the choice before you make it rather than afterwards. Where a couple has connections to more than one country, answer one question early. Which country’s courts would deal with a separation? The answer can change the financial outcome substantially.
Not sure whether a move abroad, or a second nationality, changes the answer for you?
Book a free initial consultationThe same thing, whichever you chose. Inheritance tax treats the two identically. The exemption carries the heading “Transfers between spouses or civil partners” and reads the same for both. If there is no will, a surviving civil partner takes the same share on intestacy as a surviving spouse. Parliament amended the Administration of Estates Act 1925 to say “spouse or civil partner” throughout (s.46).
There is one limit worth knowing if either of you has a life outside the UK. It is also the limit people most often miss. Sometimes the partner making the transfer is a long-term UK resident and the partner receiving it is not. In that case the exemption has a cap. It “shall not exceed the exemption limit at the time of the transfer” (Inheritance Tax Act 1984, s.18(2)). That limit is the nil-rate-band figure.
The cap applies to marriage and civil partnership in exactly the same way. So when weighing civil partnership vs marriage, the cap is not a reason to prefer one over the other. It is, however, a reason not to assume the transfer between you is tax-free. The test here moved from domicile to long-term UK residence on 6 April 2025. Older advice on this point may therefore describe a rule that no longer exists.
Pension survivor benefits used to be the one place where the difference was real and expensive. The law once allowed occupational schemes to calculate a same-sex survivor’s pension only on service from 5 December 2005 onwards. For a long career, that could mean losing most of it. In Walker v Innospec Ltd [2017] UKSC 47 the Supreme Court disapplied the provision permitting that restriction. It also declared Mr Walker’s husband entitled to a survivor’s pension calculated on all of his years of service. Regulations in 2023 then amended the Equality Act, so the exception no longer applies to survivor benefits (SI 2023/1308).
So the historical gap has closed. It is worth knowing about anyway, for two reasons. Published advice written before 2017 is still circulating and still says the opposite. Say a scheme quoted someone a reduced survivor’s pension years ago. That old figure is not the one that applies now.
One thing is not automatic in either case. Ending a relationship does not by itself remove a former partner’s claim on an estate or reorganise a death-in-service nomination. That is a settlement question before it is an estate-planning one. The nomination and the pension sit inside the financial claims a court deals with. That is why our guide to inheritance and divorce covers how the two interact. Drawing up the will itself is a private-client job rather than a family law one. We will say so rather than sell you something we do not do.
Most people arrive here asking a general question when they have a specific one. Answer both questions below and the answers combine into a single result. It tells you which part of the law your situation turns on, and what getting it wrong tends to cost. Nothing you select leaves this page.
Which part of the law is your question really about?Two questions. We store nothing and send nothing anywhere.
Two questions can point you at the right part of the law. They cannot weigh your facts. These are the calls that decide outcomes.
Book a free initial consultation
One of our specialists will give you initial advice on your situation.
Almost none of the damage comes from picking the wrong one. The cost comes from beliefs that were true once, or never true at all.
Our specialists assist and advise from the first conversation, and the useful part is usually narrowing the question. For a couple deciding, we separate the parts of the choice with legal consequences from the parts about the day. We then deal properly with the first group, because that is where the money is. For a couple whose relationship is ending, we work out which claims are live and what needs valuing. We also set the order in which things should happen.
Where there is a connection to another country, that comes first, because it can determine everything that follows. Where there is a pension of any size, it is usually the largest asset after the home. It is also the one its owners most often under-value.
A free initial consultation is a conversation with a specialist who gives you initial advice on your circumstances. It does not include drafting or reviewing documents. Before the call, note when the relationship began and whether either of you has lived or worked abroad. A rough idea of the pensions on each side helps too.
No. On the points that decide outcomes it is not weaker at all. The court’s financial powers come from a Schedule written to correspond to the divorce legislation. Inheritance tax uses one exemption covering spouses and civil partners together. Intestacy treats a surviving civil partner as it treats a surviving spouse, and parental responsibility works the same way. The differences are about formation, religious content, conversion, one annulment ground and recognition abroad.
Yes. Regulations made in 2019 removed the words “of the same sex” from section 1(1) of the Civil Partnership Act 2004. That opened civil partnership to any couple in England and Wales. In practice, couples who want the legal protection without the institution of marriage now have a route to it. A good deal of the campaigning behind that change was about exactly that.
Yes. Under Part 4 of Schedule 5, a court can make a pension sharing order in a dissolution as on divorce. On death, the law now treats survivor benefits the same way too. The old provision let schemes limit a same-sex survivor’s pension to service from 5 December 2005. The Supreme Court disapplied it in 2017, and regulations amended it out in 2023.
Not at the registration itself. The Act bars any religious service while the civil partnership registrar is officiating at the signing of the document. Some couples hold a separate religious or celebrant-led ceremony at a different time. That does not affect the legal registration either way. A religious marriage ceremony, by contrast, can itself be the legal event.
No. Conversion runs in one direction only. A same-sex couple can convert their civil partnership into a marriage in England and Wales. The marriage certificate you receive carries the date the civil partnership began. There is no equivalent route from marriage to civil partnership. Opposite-sex civil partners cannot convert to a marriage either.
No. Section 50 of the Civil Partnership Act 2004 lists what makes a civil partnership voidable. Non-consummation is not among them. For marriage it is a ground, but only for opposite-sex couples. Section 12(2) of the Matrimonial Causes Act 1973 says the two non-consummation grounds do not apply to a same-sex couple’s marriage.
It depends entirely on the country, and that is the honest answer. Some treat a civil partnership formed here as equivalent to marriage. Others recognise it as a lesser status, and some do not recognise it at all. Other countries recognise marriage far more consistently. If a move is realistic, or one of you holds another nationality, take advice on the specific countries before deciding.
No, on both counts. The same two waiting periods apply. The court cannot confirm a conditional order until at least 20 weeks after the application. The final order then follows at least a further six weeks later (Matrimonial Causes Act 1973, s.1). GOV.UK puts the practical minimum at around six months. The court fee is the same too. The HMCTS fee list charges £628 to file an application for a divorce, nullity or civil partnership dissolution. We checked that figure on 24 September 2026. Our guide to the dissolution of a civil partnership takes the process stage by stage.
Over your own children, yes, and on exactly the same terms as marriage. The Children Act 1989 provides that where a child’s “father and mother were married to, or civil partners of, each other at the time of his birth, they shall each have parental responsibility for the child” (s.2(1)). The Act names the two statuses in the same breath, so neither confers more than the other. A parallel rule in s.2(1A) covers couples who were spouses or civil partners at the time of assisted conception. What neither status does is give you parental responsibility for a partner’s child from another relationship. As a step-parent, you get it by agreement with the parents who have it. The alternative is a court order on your application (s.4A). It is a separate step either way.
General information about the law in England and Wales, not advice on your circumstances.
Couples spend weeks weighing civil partnership vs marriage. They spend almost none of that time on the question that decides what they actually walk away with. You can settle the label in an afternoon. The pension is not like that. On any relationship of length it is usually the largest asset after the home. Yet the figure on the annual statement is not the figure a settlement rests on. Get it valued properly before you agree anything. A share agreed on the wrong number is hard to undo afterwards.
Garry Steedman, Family Law Consultant (Divorce, Children & TOLATA)
The two statuses are near-identical in law. That is exactly why the expensive mistakes here are never about which one you picked. They are about what sits around it. Which country’s courts would deal with a separation? What is a pension really worth once someone values it properly? Would an existing agreement survive a challenge, and has anyone actually closed off the financial claims? Every one of those is far cheaper to get right now than to put right afterwards. Book a free initial consultation and one of our specialists will give you initial advice on your options.
Book a free initial consultation or call 0330 094 5880
You can also read our guide to the dissolution of a civil partnership, to financial consent orders, or to pre-nuptial agreements.
8 of 26 guides — scroll sideways for more
Short videos from the Kabir Family Law team, explaining family law in plain English.
We are a team of legally trained family law and divorce specialists with years of experience across all areas of family law. We are not part of a firm of solicitors, do not undertake legal reserved activities unless permitted and are therefore entirely independent. Please subscribe to our mailing list.
![Prest v Petrodel [2013] UKSC 34: What It Really Decided](https://www.kabirfamilylaw.co.uk/wp-content/uploads/2026/10/Prest-v-Petrodel-1024x572.jpg)
![Radmacher v Granatino [2010] UKSC 42: What It Decided](https://www.kabirfamilylaw.co.uk/wp-content/uploads/2026/10/Radmacher-v-Granatino-1024x572.jpg)
Type a topic to see the pages that cover it, or choose one below.
Or choose a topic
Or call us on 0330 094 5880
A few things we have shared lately. Plain answers, quiet updates, and the occasional reminder that you are not the first person to stand where you are standing.
Kabir Family Law, the start of the bright side of life.
View this Facebook post, opens in a new tab
When the roots are deep there is no reason to fear the wind.
View this Instagram post, opens in a new tab
Kabir Family Law brings hope to families in times of crisis.
View this X post, opens in a new tab
You are never truly alone. Sometimes the bravest thing you can do is ask…
View this Facebook post, opens in a new tab
Would you rather talk it through with someone?
Book a free consultationThe first conversation with one of our family law specialists costs nothing.
12 Cathedral Rd
Pontcanna
Cardiff
CF11 9LJ
Friars House,
Coventry
CV1 2TE
Chester House
1st and 3rd Floors
81 - 83 Fulham High Street
Fulham
London
SW63JA
16 High Holborn
Holborn
London
WC1V6BX
Clavering House
Clavering Place
Newcastle upon Tyne
Tyne and Wear
NE1 3NG
20-30a Abington Street
Northampton
NN1 2JA
2 King St
Nottingham
NG1 2AS
1 & 3 Kings Meadow
Oxford
OX2 0DP
2 Copenhagen St
Worcester
WR1 2HB
Tower Court
3 Oakdale Road
North Yorkshire
York
YO30 4XL
You do not need the right words. Tell us what is happening, or pick whatever comes closest.
What is happening?