Yes — if you both agree, you can cancel a prenup. A prenup is an agreement between the two of you, so the two of you can also agree to end it. What matters is doing it properly — with a clear, signed written revocation — rather than simply tearing up the paper and hoping that is the end of it. A prenup is a formal deed, and it deserves a formal way of undoing it.
Why you cannot just rip it up
Destroying your copy of a prenup does not reliably cancel it. There are usually several copies in existence — each partner’s, and often the solicitors’ files — so a shredded page proves nothing. Worse, it leaves a gap: if the marriage later ends, one partner might produce a surviving copy and argue the agreement still stands, while the other insists it was cancelled. That is exactly the kind of dispute a prenup is meant to avoid. A clean, documented cancellation removes any doubt.
How to cancel a prenup properly
The safe way to revoke a prenup is a short written agreement, signed by both partners, that records you are cancelling it. In practice that means:
- Put it in writing. A clear statement that you both agree to revoke the prenup dated [date].
- Both sign it. A cancellation needs the agreement of both partners — one person cannot tear it up alone.
- Sign it as a deed. Because the prenup was executed as a deed, it is safest to revoke it the same way, witnessed.
- Keep the record. Store the signed revocation with your papers so there is clear evidence of what you decided.
It is worth taking independent legal advice before you cancel, so you both understand what you are giving up (see are prenups legally binding?).
Can one partner cancel it alone?
No. Just as it took both of you to make the prenup, it takes both of you to end it. One partner cannot revoke the agreement unilaterally simply because they have changed their mind. If you disagree about whether to cancel, that is a conversation — and possibly a negotiation — rather than something either of you can do on your own (see disagreeing on prenup terms).
Consider replacing rather than simply cancelling
Very often, the real reason couples want to cancel a prenup is not that they want no agreement, but that the current one no longer fits their circumstances — children have arrived, finances have changed, or the terms now feel unfair. In that situation, replacing the prenup with an updated postnuptial agreement is usually far better than cancelling and being left with nothing. A fresh postnup lets you keep the clarity and protection while bringing the terms up to date (see changing a prenup after marriage and what to include).
Cancel or replace: which is right for you?
| Situation | Better option |
|---|---|
| You no longer want any agreement at all | Cancel, with a signed revocation |
| The terms are outdated but you still want protection | Replace with a postnup |
| Circumstances have changed a lot | Replace with a postnup |
| A review clause has fallen due | Replace with a postnup |
What cancelling actually means for your finances
It is worth being clear-eyed about the effect of cancelling. Once a prenup is revoked, there is no agreement guiding how your finances would be divided if the marriage ended. Instead, everything falls to be decided under the ordinary law on divorce, where a court looks at the whole financial picture and has a wide discretion to redistribute assets to meet both partners’ needs (see what happens without a prenup and how assets are divided). For the partner the prenup was protecting — often the one who brought in a business, a property or family money — cancelling can remove a significant safeguard. That is why taking independent advice before you revoke is not a formality but a genuinely useful step: it makes sure you both understand what you are letting go.
A worked example of cancelling versus replacing
Picture a couple whose prenup kept a family business entirely separate. Years later they have run the business together and both have poured work into it, so the original clause no longer reflects reality. One instinct is to cancel the prenup outright. But if they simply tear it up, they are left with no agreement at all, and the business — now genuinely built by both — is fully in the mix on any divorce. A better route is usually to replace the old terms with a postnup that recognises the shared effort while still protecting the founder’s original stake (see prenups for business owners). Replacing keeps a fair, current framework; cancelling leaves a vacuum.
Cancelling once divorce is on the horizon
The position changes if a marriage is already breaking down. Once financial proceedings are under way, the existence of a prenup is one of the circumstances a court will consider, and you cannot simply agree to make it disappear to suit one side. If you are contemplating separation, the sensible step is not to cancel unilaterally but to take advice promptly on where you stand (see can a prenup be overturned?). Trying to revoke an agreement at the eleventh hour, when its effect is about to be tested, is very different from a calm, mutual decision made in a settled marriage.
Should you take advice before cancelling?
Yes, and it is more than a formality. The whole point of a prenup was usually to protect something — money brought into the marriage, a business, a property, a future inheritance — so cancelling it means giving up that protection. Each partner taking a short round of independent legal advice before signing a revocation makes sure you both understand, in concrete terms, what you would be exposed to if the marriage later ended without an agreement in place (see what happens without a prenup). It also protects the decision itself: if one partner later claims they were pressured into cancelling, a record that both took advice heads that argument off. The advice does not have to be expensive — you are asking an adviser to explain the consequences of ending a document that already exists, not to draft anything new.
Cancelling because circumstances changed the other way
It is worth noticing that couples sometimes want to cancel for opposite reasons. In some marriages the wealthier partner feels the agreement is now unnecessary because the couple have merged their lives so completely that keeping things separate feels wrong. In others, the less wealthy partner is the one pushing to cancel, because the terms that seemed fair at the outset now feel mean after years of raising a family. Both are understandable, but they point to different solutions. Where the goal is simply generosity, a fresh postnup that shares more can achieve that without leaving a vacuum. Where the goal is fairness for a partner who gave up earnings, again a rewritten agreement usually serves better than none at all (see prenups and the stay-at-home parent and how to make a prenup fair). Bare cancellation throws the whole question back to the ordinary law; a replacement keeps you in control of the answer.
What a written revocation should contain
If you do decide to cancel outright, a clean revocation is short but should be unambiguous. Good practice is to identify the original agreement clearly — by its date and the parties — state plainly that you both agree to revoke it in full, confirm you each do so freely and with the benefit of advice, and execute the document as a deed in front of an independent witness. Date it truthfully, keep the signed original safe, and destroy or clearly mark any spare copies of the old prenup so no one can later wave one around as if it still applied. Doing it this carefully means there is never a doubt about what you intended (see what makes a prenup invalid).
How to cancel a prenup, in short
If you both want to cancel a prenup, you can — it is your agreement, so the two of you can agree to end it. The safe way is a clear written revocation signed by both partners, not just tearing up a copy, since other copies may exist and destroying one leaves room for argument about what you intended. Often, though, couples who want to cancel actually want to update: replacing the prenup with a fresh postnup is usually wiser than being left with nothing.
Frequently asked questions
Can one partner cancel a prenup alone?
No — cancelling needs both partners to agree and sign (see disagreeing on prenup terms).
Is it better to cancel or replace a prenup?
Usually replace it with a postnup, so you keep protection rather than have none (see postnuptial agreements).
Does tearing up a prenup cancel it?
Not reliably — other copies may exist, so a signed written revocation is far safer.
Do we need a solicitor to cancel a prenup?
Not strictly, but advice helps you both understand what you are giving up (see independent legal advice).
Can a prenup be cancelled after divorce proceedings start?
Once finances are before a court, the position is more complex — take advice promptly (see can a prenup be overturned?).
What happens if we cancel and have nothing in place?
Your finances would be divided under the ordinary law on divorce, with no agreement to guide it (see what happens without a prenup?).
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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.