Bank of Mum and Dad: Is Gifting a Deposit the Best Way to Help Your Kids?
A quick heads-up: The information in this article is designed as a general educational guide only and does not constitute personalised financial, tax, or legal advice. Because everyone's situation is unique (and bank policies change frequently), we recommend speaking with a licensed Financial Adviser to see how this applies to your specific circumstances. For full transparency on our terms of service, how we are remunerated by lenders, and any specific situations where a fee may apply, please read How We Get Paid.
Saving for a house deposit in today's New Zealand property market is one of the steepest financial hurdles the next generation will ever face. If you have worked hard, built up equity, and find yourself in a position to help your children onto the property ladder, stepping in as the "Bank of Mum and Dad" is an incredibly generous milestone.
Naturally, most families default to the easiest, most familiar option: simply gifting the cash.
It sounds clean, straightforward, and loving. You transfer the funds, your child buys the house, and everyone celebrates. But when family goodwill meets property law, an undocumented cash gift can inadvertently expose your hard-earned wealth to risks you might not have anticipated.
Before anyone signs paperwork or moves money, it is vital to understand the practical difference between a Gifted Deposit and a Deed of Acknowledgement of Debt—and how both banks and New Zealand relationship property laws treat each option.
How a gifted deposit works
A cash gift is a permanent, non-repayable transfer of capital. If you choose this path to help fund your child's deposit, New Zealand banks will require you to sign a standard Gifting Certificate.
The Bank's Requirement
Lenders insist on this document for a very specific reason: they want written confirmation that the money is an absolute gift with zero expectation of repayment, and that you hold no registered or unregistered claim over the property. This guarantees the bank holds first priority over the asset if mortgage repayments ever run into trouble.
The Relationship Property Risk
Once that gifting certificate is signed, those funds legally belong entirely to your child.
How a deed of debt protects family wealth
A Deed of Acknowledgement of Debt is a legal document prepared by a conveyancing solicitor that formally registers the money as a loan from parents to child, rather than an outright gift.
The Bank's Perspective
Under responsible lending rules, banks are cautious about borrowed funds forming a deposit. If a debt deed states that your child must make regular monthly payments or pay ongoing interest to you, the bank will add that commitment to their debt profile. This will reduce their borrowing capacity or could cause the bank to reject the deposit outright.
The Standard Workaround
The bank will still require their mortgage to hold first priority, but underwriters will generally accept the arrangement because it doesn't strain household cash flow.
Crucially, because the money is a registered debt owed back to the parents, it is not an asset of the relationship—protecting your capital if the relationship ever ends.
How deposit size changes the bank's rules on genuine savings
How the bank treats parental contributions depends heavily on the overall size of the deposit relative to the purchase price:
Buying with Less than a 20% Deposit
If the total deposit is under 20% (an over-80% LVR loan), banks enforce a strict Genuine Savings rule.
Buying with a 20% Deposit or More
Once the total deposit reaches 20%, the bank's strict genuine savings restrictions typically drop away.
Because the loan sits in the standard risk category, lenders are comfortable if a substantial portion—or even the entire 20%—originates from parents. This makes it far simpler for your solicitor to put a Deed of Debt in place from day one without underwriters questioning the source of the savings.
Comparing cash gifts and deeds of debt side by side
Why independent legal advice is essential
While mortgage advisers understand bank lending criteria inside and out, we do not provide legal advice.
Property ownership, inheritance planning, and relationship property laws are complex. Every family setup is unique. Before any contract is signed, both parents and children should consult independent conveyancing solicitors:
- Independent Representation: If your child is buying with a partner, that partner must receive separate independent legal advice for any Section 21 agreement to be legally binding.
- Wills and Estate Planning: A Deed of Debt affects how your assets are distributed in the future. Your solicitor will ensure the debt aligns with your will so that other siblings are treated fairly down the track.
Our role as financial advisers is to work directly alongside your legal team. Once your solicitor identifies the right protective structure for your family, we ensure the mortgage application is packaged to satisfy the bank's credit rules.
How we help protect your family's equity
A standard, volume-driven mortgage broker might simply tell you to "just sign the gifting certificate" because it is the fastest way to get a loan across the line.
At Home Loan Factory, we take a broader view of your family's financial position. We know that protecting parental retirement capital is just as important as getting the first home approved. We coordinate with your solicitor to find the right balance—ensuring the bank gets the security they need while your family's wealth stays protected for the future.
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