A prenup is written for one event, the end of the marriage. Bankruptcy is the other event that can redraw a couple's finances overnight, and it follows different rules, made for creditors rather than spouses. Couples where one partner runs a business, trades as a sole trader, or carries significant debt often ask whether a prenup protects the other partner if it all goes wrong. The honest answer is that it protects some things, cannot protect others, and can make one common mistake worse. This guide explains what a trustee in bankruptcy can reach, where the family home stands, why moving assets to a spouse does not work, and where a prenup genuinely helps.
What bankruptcy does to a married person's assets
When an individual is made bankrupt, their estate vests in a trustee in bankruptcy whose job is to realise it for the creditors. Section 283 of the Insolvency Act 1986 defines the bankrupt's estate as all property belonging to or vested in the bankrupt at the start of the bankruptcy, with limited exceptions for tools of the trade and the clothing, bedding, furniture and household equipment needed to meet the basic needs of the bankrupt and their family. Property held on trust for someone else is excluded. The spouse's own property is not part of the estate at all: marriage does not merge two people's assets, and a partner's savings, pension and possessions remain theirs. Where an asset is jointly owned, the bankrupt's share vests in the trustee and the other spouse keeps theirs.
That is the first point a prenup bears on. The question of what belongs to whom is answered by ownership and by evidence of ownership, and a prenup's financial disclosure schedule, listing what each partner owned on a stated date, is a contemporaneous record that a solvent spouse can produce to show that an asset was theirs and not the bankrupt's.
The family home
The home is where bankruptcy hurts a family most, and the statute is specific. Under section 336 of the Insolvency Act 1986 a spouse's home rights under the Family Law Act 1996 bind the trustee, so the non-bankrupt partner cannot simply be put out. But the trustee can apply for an order for sale of the bankrupt's interest, and section 335A of the Insolvency Act 1986 tells the court what to weigh: the interests of the creditors, the conduct of the spouse so far as it contributed to the bankruptcy, the needs and resources of the spouse, the needs of any children, and all the circumstances other than the needs of the bankrupt. The sting is the time limit. Where the trustee applies more than one year after the estate vested, the court must assume, unless the circumstances of the case are exceptional, that the interests of the creditors outweigh all other considerations. In practice that means the family usually has a year, after which a sale is close to inevitable and the solvent spouse receives their own beneficial share of the proceeds, not the bankrupt's.
A prenup cannot change that timetable. What it can do is establish the solvent partner's share clearly, because the split of the proceeds follows beneficial ownership, and a couple whose agreement and title deeds both record that the deposit and a stated share belonged to one of them have far less to argue about with a trustee.
Why moving assets to your spouse does not work
The instinct of a business owner in trouble is to put the house and savings in their spouse's name. Insolvency law was written to defeat exactly that. Under section 339 of the Insolvency Act 1986 the trustee can apply to unwind any transaction at an undervalue, which includes a gift, a transfer for no consideration, or a transfer for significantly less than the asset was worth, entered into in the relevant time. Section 341 of the Insolvency Act 1986 sets that time at five years before the bankruptcy application, and where the transfer was to an associate, and a spouse is an associate, the individual is presumed to have been insolvent at the time unless the contrary is shown. So a house transferred to a spouse for nothing four years before a bankruptcy can be brought back into the estate.
Section 423 of the Insolvency Act 1986 goes further. A transaction at an undervalue entered into for the purpose of putting assets beyond the reach of a person who is making or may make a claim, or of otherwise prejudicing their interests, can be set aside on the application of a victim of it, with no requirement that anyone be bankrupt and no fixed time limit. A transfer to a spouse made when the creditors were already circling is the textbook case. And section 39 of the Matrimonial Causes Act 1973 closes the last door: the fact that a transfer was made to comply with a property adjustment order on divorce does not stop the trustee attacking it as a transaction at an undervalue, so a divorce timed to move assets out of reach does not work either.
Where a prenup genuinely helps
A prenup is an agreement between the two of you about divorce; it binds neither creditors nor a trustee, and no clause in it can put the bankrupt's own assets beyond their reach. Its value in a bankruptcy is indirect, and real.
It keeps the finances separate from the start. A couple who follow their agreement, holding pre-marital assets, inheritances and savings in the name of the partner who owns them and avoiding joint accounts for anything that is meant to stay separate, have a solvent partner whose property is demonstrably their own. The Supreme Court's 2025 decision in Standish v Standish makes the same conduct the test of what is shared on divorce, so separation of finances serves both purposes at once.
It records debts as the borrower's. The agreement should list each partner's liabilities in the financial disclosure and state that they remain that partner's responsibility, and the couple should avoid joint borrowing and guarantees for one partner's business. A lender can only pursue the person who signed, and a spouse who never guaranteed the business loan is not liable for it, bankrupt or not.
It shapes the divorce if the two events collide. Where a marriage ends while one partner is bankrupt or close to it, section 25 of the Matrimonial Causes Act 1973 still governs the division, but the assets available are those left after the trustee's claims, and the sequence of bankruptcy and divorce petitions affects what each spouse can recover. A prenup that already records what each partner brought in gives the family court a clear starting point in a situation that is otherwise a race. This is specialist territory and a couple facing both should take advice on timing before either petition is issued.
Practical steps for a couple with business risk
Trade through a limited company where the business justifies it, so that business debts are the company's and not yours; record in the prenup that the shares are the trading partner's and the family home is the other's, with the home's title matching; keep an up-to-date financial disclosure schedule so that ownership can be proved on a date; never sign a personal guarantee or a joint loan for the other partner's business without understanding that it makes you liable; and remember that transfers between you made to protect assets, rather than for a genuine reason such as tax planning recorded at the time, are the transactions insolvency law is designed to reverse. Our guides to pre-marriage debts and prenups for business owners cover the drafting; a prenup made with financial disclosure and independent legal advice, and followed in practice, is the version that helps when the worst happens.
Prenups and bankruptcy: FAQs
Am I liable for my spouse's debts if they go bankrupt?
Not for debts in their sole name. You are liable only for debts you signed for: joint loans, a joint mortgage, or a guarantee. Bankruptcy does not transfer the bankrupt's debts to their spouse.
Can a prenup protect my assets from my partner's bankruptcy?
It cannot bind the trustee, but it can help prove that assets were yours all along, and a couple who keep finances separate as their agreement says have a much clearer position than one who did not.
Can the trustee sell our home?
The trustee can apply for a sale of the bankrupt's interest. Your home rights bind the trustee, but after one year the court will normally order a sale unless the circumstances are exceptional, and you receive your own beneficial share of the proceeds.
Can we transfer assets to my name to protect them?
Transfers to a spouse for no or low value can be unwound by the trustee for up to five years, and with no time limit where the purpose was to defeat creditors. A transfer made to protect assets from creditors is the transaction the law is designed to reverse.
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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.