No — you should never backdate a prenup. The agreement must show the true date it was actually signed. Backdating is dishonest, and far from helping, it can destroy the agreement’s credibility.
Why backdating is a serious mistake
People are sometimes tempted to backdate so a prenup does not look last-minute. But a false date is a form of dishonesty that, if discovered, can lead a court to disregard the whole agreement — and undermines the trust the document is meant to reflect (see are prenups legally binding?).
What to do instead if time is short
If the wedding is close, the answer is not to fake the date but to sign honestly as soon as you can — or, if there genuinely is not time to do it without pressure, to make a postnup after the wedding instead. The right approach is always to start early and sign in good time (see what to include).
Why you should never backdate a prenup
You should never backdate a prenup — the agreement must show the true date it was actually signed. People are sometimes tempted to backdate so the prenup does not look last-minute, but a false date is a form of dishonesty that, if discovered, can lead a court to disregard the whole agreement. If the wedding is close, the answer is not to fake the date but to sign honestly as soon as you can — or, if there genuinely is not time, to make a postnup after the wedding instead.
Related questions
Is it illegal to backdate a prenup?
It is dishonest and can destroy the agreement’s credibility.
What if there is no time before the wedding?
Sign honestly now or make a postnup later (see postnuptial agreements).
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.