No — there is no register for prenups in the UK (England & Wales), so there is nothing to file and nowhere to send it. Once your prenup is signed and witnessed, it is simply yours to keep. It takes effect as a private agreement between the two of you the moment it is properly executed — no stamp, submission or official approval is needed to bring it to life.
There is genuinely nothing to register
Some documents in life have to be lodged somewhere to have effect — a property is recorded at the Land Registry, a company at Companies House, a will can be lodged for safe keeping. A prenup is not like any of those. It is not recorded on any official register, and you do not submit it to a court or government body when you make it. This is closely linked to the fact that a prenup is a private document, not a public record (see also keeping a prenup private).
What to do with your prenup instead
Since there is nowhere to file it, the job after signing is simply to keep it safe and provable. That means holding on to more than just the agreement itself:
- The signed, witnessed original — the agreement itself, properly executed as a deed.
- The disclosure schedule — your record of what each partner declared.
- The advice letters — evidence each of you took independent legal advice.
Store these somewhere secure — with your other important documents, in a safe, or with your solicitor — and make sure each partner has a copy, plus a labelled digital scan as a backup (see storing your prenup, after signing a prenup and what to do if you lose it).
Why keeping the paperwork matters
Although there is no register, those documents together are your proof that the agreement was made properly — with disclosure, advice and correct signing. That evidence is exactly what supports the agreement’s weight if it is ever needed on a divorce. In effect, careful storage does the job that registration does for other documents: it lets you demonstrate the prenup exists and was done right (see what to include).
When does a prenup take effect, if not on registration?
Because some documents only bite once they are recorded somewhere, couples reasonably ask when a prenup actually “switches on”. The answer is that it takes effect as an agreement between the two of you as soon as it is properly executed as a deed — in writing, signed by each partner in front of an independent witness — and, of course, once the marriage itself takes place, since a prenup speaks to what would happen in a divorce. There is no further approval step, no stamp, and no waiting period while an authority processes it. The agreement is complete the moment the last signature and witnessing are done. That is why there is nothing to register: unlike a property transfer, whose effect depends on being recorded, a prenup’s effect comes entirely from how it was made, not from any filing (see how to sign a prenup).
Your records are the substitute for a register
With no official register to vouch for the agreement, the job of proving it was made properly falls to your own paperwork — which is why keeping it well is so important. Three documents together tell the whole story: the signed, witnessed original; the disclosure schedule showing what each partner declared; and the advice letters recording that each took independent legal advice. Held together, these do exactly what registration does for other documents: they let you demonstrate, years later, that the prenup exists and that the safeguards were in place. In effect, careful storage is your private register (see what to include). The absence of an official filing is not a gap to worry about, provided you keep your own records in good order.
How to store it so it is easy to rely on
Practical storage is straightforward but worth doing deliberately. Keep the signed original somewhere secure — a home safe, a fireproof document box, or with your solicitor — and give each partner a copy so no single loss is catastrophic. Take a clearly labelled digital scan as a backup, stored somewhere protected, and keep the disclosure schedule and advice letters in the same place as the agreement itself so the full picture never gets separated (see storing your prenup and after signing a prenup). Because there is no register to fall back on if the original goes astray, this modest bit of organisation is what protects the effort you put into making the agreement in the first place. A few minutes filing it properly on signing day saves a great deal of difficulty later.
Does anything need doing with the authorities at all?
To be completely clear: making a prenup involves no dealings with any government body, court or registry whatsoever. You do not notify HM Courts & Tribunals Service, you do not tell the register office where you marry, and you do not inform HMRC — the agreement itself has no direct tax effect to declare. It is a private arrangement, and it stays that way unless and until it is ever relevant to a divorce, at which point it would simply be produced to the court as evidence (see is a prenup a public record?). This can feel surprisingly informal to anyone used to officialdom, but it reflects the nature of a prenup: it is a considered agreement between two people, not a transaction the state needs to record (see keeping a prenup private).
Would a register make a prenup stronger?
Some couples instinctively feel that being able to lodge a prenup somewhere official would make it more solid, but that is not how weight is earned in England & Wales. What persuades a court to follow a prenup is not a stamp or a filing but the substance of how it was made: honest disclosure from both partners, independent advice each, fair terms, and signing in good time and free of pressure (see are prenups legally binding?). A registered but one-sided agreement made without advice would be weak; an unregistered witnessed deed backed by disclosure and advice is strong. So the absence of a register takes nothing away — it simply means you demonstrate the agreement’s quality through your own evidence rather than through an official entry.
The Law Commission and a possible future
It is fair to note that this could, in principle, change one day. The Law Commission’s 2014 report proposed a new category of “qualifying nuptial agreements” that, if made with the right safeguards, would be binding on a court subject to meeting needs. Those proposals have not become law, so the current position stands: a prenup is given weight under the approach in Radmacher v Granatino (2010) rather than being automatically binding, and there is still no register or filing requirement (see qualifying nuptial agreements). If reform ever arrives, the formalities might change, but for now the practical answer is unchanged — make the agreement properly, keep it safely, and there is nothing to register. Building in the recommended safeguards today also means your agreement would be well placed whatever any future reform requires.
Do you register a prenup in the UK?
There is no way to register a prenup in the UK, because England & Wales keeps no register of prenuptial agreements — so there is nothing to file and nowhere to send it. Unlike a property or a company, a prenup is not recorded on any official register; it takes effect as a private agreement between the two of you. Instead of registering it, keep the signed, witnessed original somewhere secure, with the disclosure schedule and advice letters, and give each partner a copy.
Frequently asked questions
Where do you file a prenup in the UK?
Nowhere — there is no registry; you simply store it safely (see storing your prenup).
What proves a prenup was made properly?
The signed original, disclosure schedule and advice letters together (see what to include).
Does a prenup need stamping or official approval?
No — it takes effect once properly signed as a witnessed deed (see executed as a deed).
Should I lodge my prenup with a court, like a will?
No — there is no equivalent lodging service for prenups; keep it with your important papers.
Do I need to register it for it to be valid?
No — validity comes from disclosure, advice, fair terms and proper signing, not registration (see are prenups legally binding?).
What if I lose the original?
Copies and supporting evidence can help, but the witnessed original is strongest, so store it carefully (see lost your prenup?).
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.