You helped your child into a home. You didn’t mean to help their ex keep half of it.

It’s also very ordinary. Almost half of Australians (46%) had some form of help from the Bank of Mum and Dad to buy their first home, according to Money.com.au’s 2026 survey. Among Gen Z it’s 78%. Family money in a couple’s first home is normal, and talking openly about the terms can be too.

That conversation matters because the law doesn’t see “your child’s deposit.” It sees money that went into a home two people own. If that relationship ends one day, an undocumented contribution is the most exposed structure there is, and the hardest thing to explain to a court years after the fact. This isn’t about distrusting anyone. It’s about protecting a generous act from a future no one plans for, and the simplest way to do that is openly, with your child and their partner both in the conversation.

In a property settlement, contributions from a parent are weighed as part of the picture. How they’re weighed depends heavily on whether they were a gift or a documented loan, and on what was recorded at the time. A gift is usually treated as a contribution made on your child’s behalf, which can count in their favour, but it stays in the pool to be divided between the couple and is weighed alongside everything else.

Most families never write down what they’d want to happen if the couple split. In Money.com.au’s survey, only 39% of formal agreements between parents and buyers covered what happens to the money if the buyer separates, and most helped buyers had no formal agreement at all. So what decides how your money is treated is what exists on paper, far more than what you and your child understood between yourselves.

With nothing in writing, there’s little to distinguish “our parents lent us this, to be repaid” from “our parents gave us this, no strings.” Absent evidence, the more exposed interpretation can prevail, and the family money can effectively be shared between the couple in a settlement. Parents can also find themselves needing to give evidence to prove it was a loan.

Nothing about that requires anyone to behave badly. Among couples who divorced in 2025, the ABS found the median time from marriage to separation was 9.4 years. That’s a long time to rely on a kitchen-table conversation. Two people who split up nine or ten years later will each remember the deposit the way it suited them to remember it, and neither will be lying.

Agreed in writing while everyone is on good terms, the arrangement looks after your money and your child. It also looks after the partner, who knows exactly what was given, on what terms, and never has to wonder later what was expected of them.

A properly drafted loan deed, signed before the money moves and actually followed, records the money as repayable. In a settlement, a genuine documented loan can be treated as a debt the couple owes, reducing the pool, and improving the chance the contribution returns to the family rather than being divided. It doesn’t stop your child buying with their partner, and it doesn’t change what they own together. It changes what happens to your share of it. It’s the same decision as gift or loan, seen from the side no one likes to think about.

Raising a “what if you split up” question with a couple in love sounds awkward. In practice, framed as ordinary paperwork that protects both of them, it usually lands far better than parents expect. A few things help:

• Talk to them together. Raise it with your child and their partner in the same conversation. Telling your child alone and leaving them to pass it on is how partners end up feeling something was decided about them, without them.
• Raise it early. Before they’ve found a place is ideal. Once there’s a contract and a settlement date, the same conversation feels rushed and loaded.
• Treat it as standard practice, because it is. Lenders usually want family money explained in writing anyway (a signed gift letter, or the loan disclosed), so some paperwork is coming regardless. Agreeing the terms together is a small step on top.
• Do it the same way for every child. If you’d document help to any of your children on the same terms, say so. It stops being about this partner and becomes how your family does things.
• Let them get their own advice. If the couple want an agreement between themselves about the property, such as a binding financial agreement, each of them needs independent legal advice for it to hold. That protects the partner as much as anyone.

A partner who helped shape the arrangement has no reason to feel ambushed by it later. It’s their home too, and clear terms are something they can rely on as well.

It’s not necessarily too late, but it is more complicated. If the money was always meant as a loan, there may still be steps that improve your position, such as a written acknowledgement of the loan signed by the couple while they’re together, backed by how the arrangement is actually run from then on. Courts look more sceptically at paperwork created after the event, particularly once a relationship is under strain, so this is better done while everyone is on good terms.

What’s possible depends on how the purchase was structured and how long ago the money moved. The approach is the same as above: raise it openly, with both of them, as tidying up something that should have been written down at the start. The sooner you look at it, the more options you have.

What your family should agree depends on things an article can’t see: how much you’ve given or plan to give, whether it’s a gift or a loan, whose names will be on the title, whether the couple are married or de facto, and how their lender will treat family money.

It also helps to have someone outside the family say what’s normal. That’s the role Fledge plays. The conversation is free and confidential, and we reply within 24 hours. We help you see:

• what families in your position commonly put in writing, and why
• how a gift and a loan are each likely to be treated if the couple separates
• whether a loan deed covers it, or a binding financial agreement between the couple is worth discussing
• how to bring your child’s partner into it early
• what to decide, and in what order, before any money moves

You leave knowing what to decide and in what order, in a form you can talk through with your child and their partner. When it’s time to draft the loan deed or an agreement, we introduce you to a family lawyer from our network.

It’s free because the specialists we introduce may pay us a referral fee if you choose to work with them. That never costs you anything, and it never changes who we recommend. You don’t need paperwork or numbers, just a sense of where you’re up to.

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