It is increasingly common for parents to help a couple out – often with a deposit for a home, or a gift of family money to get married life started. Naturally, families want that money protected if the marriage does not last, so it stays on their side rather than being split with an ex. The difficulty is that a gift towards a couple's home or finances usually becomes part of the shared pot unless something clearly says otherwise. A prenup is the clearest way to record that a family gift is protected. This guide explains the "bank of mum and dad" problem, how a prenup ring-fences a gift, and why it is best agreed when the money changes hands.
The "bank of mum and dad" problem
When parents gift money towards a couple's home or finances, it usually becomes part of the shared, matrimonial pot unless it is documented otherwise – particularly once it goes into the family home. On divorce, that can mean half of a family's generosity effectively leaving the family, which is rarely what anyone intended. A verbal understanding that "it was really for our child" carries little weight years later without something in writing.
Gift or loan? Get it clear
One early question shapes everything: was the money a gift or a loan?
- A gift can be recorded in a prenup as the separate property of the partner who received it, or as a sum repayable to them before the rest is shared.
- A loan from parents is a debt, and should be documented as such (a loan agreement), so it is recognised as repayable rather than treated as a gift to the couple.
Being clear about which it is – and documenting it – avoids a painful dispute later. See how debts are handled in pre-marriage debts and prenups.
How a prenup protects a gift
A prenup can record that a specific gift – for example, a parental contribution to the deposit – is to be repaid to that partner, or treated as their separate property, if the couple divorce. This gives effect to what the family actually meant: a leg-up for their child, not a shared asset. Record the gift, the amount and its terms in your disclosure, and keep any evidence of where it came from. Where the gift goes towards a jointly bought home, this often works alongside a declaration of trust and the points in buying a house together before marriage.
Fair, and worth doing early
Because it protects a clearly identified sum rather than stripping a partner of everything, this kind of clause is exactly the sort a court tends to respect (see are prenups legally binding?) – provided the overall outcome remains fair and both partners' needs are met. The best time to put it in place is when the gift is made: if parents are helping with your wedding or home, it is well worth discussing a prenup at the same time, while everyone is on good terms and the intention is fresh.
Protecting family money with a prenup
To protect family money with a prenup – a deposit from parents, say, or a cash gift – record the specific sum in the agreement and state that it is to be repaid to that partner, or treated as their separate property, if the couple divorce. That gives effect to what the family intended: a leg-up for their child, not a shared asset. It is most effective when agreed at the time the gift is made.
Why the prenup carries weight: Radmacher
A prenup protecting a family gift works because of Radmacher v Granatino (2010), in which the Supreme Court held that a court should give effect to a freely made, fair agreement unless it would be unfair to hold the parties to it. A prenup is not automatically binding – the court keeps its discretion under the Matrimonial Causes Act 1973, and a partner’s and any children’s needs come first – but a clause returning a clearly identified parental gift is modest and fair, exactly the kind courts respect. Made with full disclosure and independent legal advice on both sides, and signed in good time (the Law Commission suggested at least 28 days before the wedding), it turns a family’s intention into something the court can rely on.
A worked example: a parental deposit
Imagine one partner’s parents gift £50,000 towards the deposit on the couple’s first home. Without anything in writing, that money simply swells the equity in the family home and, on divorce, is likely to be shared – so half of the parents’ generosity effectively leaves the family. A prenup can instead record that the £50,000 is repaid to that partner off the top if the property is sold or the couple divorce, with the remaining equity then split fairly. The gift is protected, but the other partner still shares in everything the couple built together – a balanced outcome that reflects what the parents actually intended: a leg-up for their child, not a windfall for the marriage.
Documenting the gift the right way
Whatever route you choose, the paperwork matters. If it is a gift, a short letter from the parents confirming it is a gift to their child (not to the couple) supports the prenup and helps any mortgage lender understand the position. If it is a loan, a proper loan agreement recording the amount, any interest and repayment terms is what makes it a genuine debt rather than a disguised gift. Where the money goes into a jointly owned home, pairing the prenup with a declaration of trust nails down each side’s share. Keep bank records showing the source of the funds, and record the gift in your disclosure schedule.
Timing: do it when the money changes hands
The best moment to protect a family gift is when it is given, while everyone is on good terms and the intention is fresh and uncontroversial. Trying to reconstruct “what mum and dad meant” years later, after a relationship has broken down, is far harder and more painful. If parents are helping with a wedding or a home, it is worth raising the prenup at the same time – and if you are already married, a postnuptial agreement can do the same job. For the wider approach to buying property before the wedding, see buying a house together before marriage.
Gifts that are not cash
Family generosity does not always arrive as a bank transfer. Parents might gift shares in the family company, a car, furniture, jewellery, or pay directly for a wedding or a honeymoon. The same principle applies: if you want it protected, identify it clearly in the prenup as separate property or a sum to be returned, and keep evidence of where it came from. A gift of company shares is worth particular care, because it can interact with a family business and its shareholder agreement. Chattels such as jewellery or antiques are treated much like any other collectible, so a short description and approximate value in your disclosure schedule is enough to establish what existed and when. The common thread is documentation: an unrecorded gift is the one most likely to be treated as simply part of the couple’s shared life.
Keeping everyone comfortable
Because these arrangements involve parents as well as the couple, a little openness goes a long way. Parents are usually reassured to know their gift is protected without anyone being treated as untrustworthy, and a fair clause – returning the gift while still sharing what the couple build together – is easy to explain. For help raising the subject, see how to talk about a prenup. And remember the agreement still has to be fair overall: a court will not let it leave a partner in real need, so protecting a defined gift sits comfortably within a balanced settlement.
Family money prenup FAQs
Does a gift clause carry weight after Radmacher?
Yes – since Radmacher v Granatino (2010) a fair clause returning a clearly identified gift is given real weight (see are prenups legally binding?).
Should my parents write a letter about the gift?
Yes – a short letter confirming it is a gift to you supports the prenup and helps a mortgage lender understand the position.
What if the gift goes into a jointly owned home?
Pair the prenup with a declaration of trust to nail down each side’s share.
Is money from parents protected in a divorce?
Not automatically – it often becomes shared unless a prenup says otherwise.
What about a parental deposit on a house?
A prenup can ring-fence it (see buying a house together before marriage).
Is it better to make the money a loan instead?
A properly documented loan is a debt repayable to the parents; a gift is protected differently – decide and document which it is.
Can we protect a gift after we are already married?
Yes – a postnuptial agreement can do the same job after the wedding.
Do my parents need to be involved in the prenup?
The agreement is between the couple, but recording the gift accurately (and any loan documentation) reflects what your parents intended.
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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.