No — there is no register for prenups in the UK (England & Wales), so there is nothing to file and nowhere to send it. Once it is signed, it is simply yours to keep.
Nothing to register
Unlike, say, a property or a company, a prenup is not recorded on any official register. You do not submit it to a court or government body when you make it. It takes effect as a private agreement between the two of you.
What to do instead
Keep the signed, witnessed original somewhere secure — with your other important documents, or with your solicitor — together with the financial disclosure schedule and any legal advice letters. Each partner should have a copy. Those documents are your proof the agreement was made properly (see what to include), which is what supports its weight if it is ever needed.
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.
Related questions
Where do you file a prenup in the UK?
Nowhere — there is no registry; just store it safely.
What proves a prenup was made properly?
The signed original, disclosure schedule and advice letters (see what to include).
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.