How to Help Your Children Buy a Home in New Zealand

With the median house price above $800,000 in most major centres, parental help with a deposit has become ordinary rather than exceptional. A 2022 Consumer NZ survey of 2,107 respondents found 61% of helping parents contributed cash toward the deposit, with an average contribution of roughly $108,000. As at early 2026 it remains the most comprehensive nationally published survey on parental home-buying help in New Zealand. The way you structure the help matters far more than the amount. Gifting, lending, guaranteeing, co-owning, assisting through a family trust, and selling a family-owned property below market value each carry different legal, tax, and relationship property consequences.

A $100,000 gift and a $100,000 loan look identical on settlement day. Five years later, if a relationship ends, a parent needs residential care, or the property is sold, the outcomes can diverge sharply depending on which path the family chose and how it was documented.

Nik Velkovski, a financial adviser at Become Wealth, sees this regularly:

"Most parents come to us thinking the question is how much to give. By the time we've worked through their situation, they realise the question is how to give it. The structure protects everyone, including the relationship."

Before you help: three questions to answer first

1. Can you afford this without compromising your own retirement?

The most generous thing you can do for your children is avoid becoming financially dependent on them later. Any help you provide should come from surplus savings or accessible equity, after your own retirement income is secure.

A rough estimate is not enough. If you are within ten to fifteen years of stopping work, stress-test your retirement plan against realistic assumptions before committing capital to a child's deposit. Model longevity to at least age 90, and preferably 95. Allow for rising health and residential care costs in later years, and build in a buffer for the unexpected. The maximum weekly contribution for contracted residential care ran from $1,513.33 to $1,634.43 depending on the district from 1 July 2026, which is roughly $79,000 to $85,000 a year before any premium room charges. Couples often face overlapping care needs at different stages. A $100,000 gift today looks very different when measured against a retirement spanning three decades with rising medical costs.

In our experience, many parents underestimate how much they will need in their seventies and eighties. They anchor their projections to their current spending rather than their likely future spending. If you have not done a comprehensive financial plan recently, one modelling your income, expenses, and assets year by year through to life expectancy, start there.

2. How will this affect your other children?

Helping one child into a home while others receive nothing, or less, is a reliable source of lasting family tension. Addressing it does not require identical dollar amounts. It requires a clear, communicated plan.

One factor families commonly overlook is inflation.

If you give $100,000 to your eldest child today and plan to give $100,000 to a younger child in five years, the second child is receiving less in real terms. At 3% annual inflation, the top of the Reserve Bank's 1% to 3% target band, $100,000 today is equivalent to roughly $116,000 in five years. Adjusting for this, or at least acknowledging it openly, signals fairness more effectively than matching the nominal amount.

Some families address the broader equity question through their wills, adjusting bequests to account for lifetime gifts. Others provide equivalent help in different forms, such as funding education costs for one child and a deposit for another. The important thing is the conversation happens early, ideally as part of broader family financial planning.

3. Does your child need deposit help, borrowing capacity, or both?

Most families skip this question. Under the RBNZ's debt-to-income restrictions, in place since July 2024, owner-occupier borrowing is generally capped at six times gross income. A child earning $80,000 can typically borrow around $480,000 regardless of how large the deposit is. If the property costs $750,000, a bigger deposit closes part of the gap, but the income constraint may still prevent the purchase. Parental help with the deposit solves a different problem from parental help with borrowing capacity, and the right option depends on which constraint is binding. Individual banks apply these rules differently, so the outcome can vary depending on which lender your child approaches.

Option 1: gift toward the deposit

New Zealand has no gift tax. Gift duty was abolished in October 2011 under the Taxation (Tax Administration and Remedial Matters) Act, so a cash gift toward a deposit is not a taxable event for either party.

How it works in practice

Banks require a signed gifting declaration confirming the money is a genuine gift with no expectation of repayment. The bank wants certainty the deposit is not a disguised loan creating a hidden liability. Your child may also be combining parental help with their own savings and a KiwiSaver Scheme first-home withdrawal. After three years of membership, a KiwiSaver Scheme member can withdraw their balance toward a first home, apart from the $1,000 minimum which must remain under the KiwiSaver Act 2006.

Advantages

• Simple to execute and straightforward for the bank to process
• Improves the child's loan-to-value ratio, potentially avoiding low-equity premiums
• No ongoing repayment obligations or family debt to manage

Risks to understand

Relationship property exposure. Under the Property (Relationships) Act 1976 (PRA), the family home is generally relationship property subject to equal sharing on separation. Once a gift is used toward the deposit on a family home, it typically becomes relationship property. If the child's relationship ends, the former partner may be entitled to half the home's value, including the portion funded by the parents' gift.

Residential care subsidy implications. If a parent later applies for a government-funded residential care subsidy, the Ministry of Social Development applies a five-year look-back on gifts. Under the Social Security Act 2018 and MSD's asset-testing policy, gifts above the allowable annual threshold within that period are treated as deprivation of assets and added back to the applicant's assessed base. As at 1 July 2026, the asset threshold for subsidy eligibility is $300,811 for a single person, or a couple where both are in care. MSD adjusts these thresholds annually, so check the MSD website for current figures.

Estate planning complexity. A gift made during your lifetime reduces your estate. If your will divides assets equally among children, the child who received the gift receives more overall, unless the will or a separate agreement accounts for it.

Protecting the gift

Two common approaches exist. One is to advance the funds as family help but document them legally as a loan, covered in Option 2 below. A loan creates a debt the child owes and provides protection against relationship property claims. The other is to encourage the child and their partner to enter a contracting-out agreement under section 21 of the PRA. These agreements typically ring-fence the parental contribution so it is treated as separate property rather than divided on separation. Both parties need independent legal advice for such an agreement to be enforceable. Courts retain the power to set these agreements aside under section 21J if enforcing them would cause serious injustice.

Option 2: a loan from the parents

A formal loan from parents to a child is arguably the most flexible option, and in many cases offers better protection than a gift. The parent provides funds toward the deposit, or the purchase more broadly, and the child agrees to repay them under documented terms.

How to structure it

The loan should be recorded in a deed of acknowledgement of debt, setting out the amount, any interest rate, repayment terms, and what happens on sale of the property. Many families agree the loan is repayable on sale, with no regular repayments in the meantime. Others set a modest interest rate and regular repayments.

A key nuance: the bank will treat a parental loan as a liability of the borrower. It reduces borrowing capacity and affects the debt-to-income calculation. A $100,000 parental loan could reduce the amount the bank is willing to lend by a similar figure. To manage this, many families structure the loan as subordinated debt, meaning repayment is deferred until the property is sold and the bank's mortgage is repaid first. The bank may then ask for a deed of subordination confirming the parental loan ranks behind its mortgage. Some lenders will agree to disregard a properly subordinated parental loan for serviceability purposes, though this varies between banks and depends on the specific terms. Discuss it with a mortgage adviser early in the process, before the loan terms are finalised.

Tax treatment

If the loan is interest-free, there is no tax consequence for either party. If the parents charge interest, the interest received is assessable income for the parents. The principal repayment is not income.

Advantages

• Creates a recognised debt on the property, which must be repaid from net proceeds on relationship breakdown before the remaining value is divided
• Preserves the parents' ability to recover their funds if circumstances change
• Flexible terms can adapt to the family's situation over time

What can go wrong

The primary tension is relational. A formal loan between parent and child changes the dynamic, and if the child struggles to repay, friction is almost inevitable. Clear, written terms agreed in advance reduce it without eliminating it. Banks also differ in how they treat the loan for lending purposes. We see families with identical deposits and loan structures receive different outcomes depending on which lender they approach and how the application is presented.

Option 3: acting as mortgage guarantor

A guarantee allows a child to borrow more than their own deposit would support, by using a parent's property as additional security. Of the six options, this one typically exposes parents to the most direct financial liability.

How it works

Under the RBNZ's loan-to-value ratio rules, owner-occupier borrowers generally need a 20% deposit to access standard mortgage rates. Suppose a child has saved 10%, including any KiwiSaver Scheme first-home withdrawal. A parent can bridge the shortfall to 20% with a guarantee secured against their own home.

A worked example

Suppose the property costs $750,000. Your child has $75,000 in savings, a 10% deposit. To reach the 20% LVR threshold, there is a $75,000 shortfall. You own a home valued at $900,000 with $200,000 remaining on your mortgage, giving you $700,000 in equity. You provide a limited guarantee of $75,000 secured against your property.

Your child borrows $675,000 at a standard owner-occupier rate rather than a rate carrying a low-equity premium. The margin between the two is typically 0.5% to 0.7%. On a $675,000 mortgage, a 0.6% margin represents roughly $4,000 per year in additional interest.

The cost to you: if your child defaults, you are liable for up to $75,000 plus interest and enforcement costs. In an extreme scenario, the bank could force a sale of your property to recover what is owed.

The all obligations trap

Most standard bank guarantees in New Zealand are drafted as all obligations guarantees. You become liable for every current and future debt the borrower holds with the same bank, not merely the home loan you agreed to support. If your child later takes a personal loan or overdraft with the same bank, your guarantee may extend to cover those too. A limited guarantee, capped at a specific dollar amount and restricted to a specific loan, can be negotiated. Independent legal advice before signing is essential, and banks are legally required to ensure guarantors receive it.

A frequent issue we see when guarantees unwind: parents discover the guarantee was broader than they understood. Or the borrower took on extra lending the guarantor never knew about. Insisting on a limited guarantee at the outset avoids both.

When the guarantee ends

Once the borrower has built enough equity, typically 20% LVR through repayments and property value growth, you can apply to have the guarantee released. Release is not automatic. You or your child need to contact the bank. It will usually want an updated valuation and a fresh look at the borrower's position before it releases the security over your home.

What it does not solve

A guarantee can affect your own borrowing capacity. Banks will factor in your contingent liability when assessing any future loan application of your own. The guarantee also does nothing to resolve a debt-to-income constraint for the borrower; it addresses the deposit gap only.

Option 4: co-ownership

Parents and child purchase the property together, each holding a defined ownership share. Co-ownership pools resources for the deposit and mortgage application, and gives both parties a legal interest in the property.

How it works

Ownership should be recorded as tenants in common with specified shares, and a property-sharing agreement drawn up by a lawyer. The agreement should cover each party's contribution to the deposit, mortgage payments, rates, insurance, and maintenance. It should also address what happens if one party wants to sell and how the property is valued on exit. These ongoing costs create financial entanglement, so the agreement should be specific about who pays what and how disagreements are resolved.

Bright-line consequences for parents

Many families overlook this issue. If the child lives in the property but the parent does not, the parent's share does not qualify for the main home exclusion under the bright-line rules. Any gain on the parent's ownership share is potentially taxable if the share is sold within the bright-line period.

The bright-line rules changed substantially on 1 July 2024. For any sale on or after that date, a 2-year bright-line period applies, regardless of when the property was originally acquired. A parent who co-purchased with their child in 2022 and sells their share in 2026 is therefore outside the bright-line period. The earlier 5-year and 10-year periods now matter only for sales completed before 1 July 2024.

Two related points are easy to miss. The bright-line clock for the parent's share generally starts on the date the title was registered to the co-owners, not the date the parent later decides to exit. And the eventual transfer of the parent's share to the child, a common end point for these arrangements, is treated differently from a sale to an outsider. Since 1 July 2024, rollover relief applies to transfers between associated persons who have been associated for at least two years, and a parent and child qualify. Under rollover relief the parent is not taxed at the time of the transfer. The child is treated as having acquired the parent's share on the parent's original bright-line start date and for the parent's cost. The relief can be used only once in any two-year period for the same property, and the child then carries the parent's bright-line position if they sell to a third party.

The practical implication: if co-ownership is the chosen path, plan the parent's exit early. Selling the parent's share on the open market within two years of the bright-line start date can trigger tax. Transferring it to the child usually will not. Either way, confirm the position with an accountant before settlement.

Other tax considerations

If the property generates rental income, for example from flatmates paying rent to the child, the parent's share of that income is assessable for income tax purposes. It is easy to overlook when the parent sees themselves as helping with a home rather than holding an investment property.

Advantages

• Parents share in any capital appreciation on their portion
• Strengthens the mortgage application through combined incomes and deposits

What can go wrong

Co-ownership ties your finances to your child's property decisions and, potentially, to their partner's claims. It also complicates your own estate: your share of the property becomes part of your estate on death, which may create liquidity problems if other beneficiaries need to be paid out. Exit can be difficult if the parties disagree on timing or valuation. All of the complexities of co-ownership apply here, amplified by family dynamics.

Option 5: assistance through a family trust

Where a family trust holds significant assets, the trustees may be able to help a beneficiary buy a home. The trust can distribute capital or lend it.

How it works

The trust deed must permit distributions or loans to beneficiaries. Most standard New Zealand trust deeds do, though the point needs to be confirmed with the trustee or solicitor. Trustees then resolve to either distribute capital to the beneficiary or lend funds on documented terms. A trust loan to a beneficiary operates similarly to a personal parental loan, but with the trust rather than the parent as the lender.

Key considerations

Under the Trusts Act 2019, trustees must act in good faith, for proper purposes, and consider the interests of all beneficiaries. A large distribution or loan to one beneficiary which disadvantages others could be challenged. Since the Act came into force, distributions face closer scrutiny. Trustees should minute each decision with clear reasoning. Trustees should also consider whether equivalent provision is being made for other beneficiaries.

Help through a trust can add a layer of asset protection, particularly where the trust already manages family wealth across generations. Capital distributions from a trust are generally not taxable income to the beneficiary. The exception is income the trust allocates to the beneficiary, which is taxed as theirs.

Option 6: equity gifting on a family sale

Equity gifting applies when parents already own a property they are willing to sell to their child, at less than its current market value. The difference between the market value and the agreed price becomes a gift of equity, and serves as the child's deposit. The option only arises where there is a property to transfer within the family, so it is less common than the five approaches above. Where it fits, it can be a clean way to transfer wealth and get a child into a home in a single transaction.

How it works in practice

Suppose the property has a market value of $800,000 and the parents agree to sell it to their child for $600,000. The $200,000 difference is the equity gift. From the bank's perspective, the child is buying an $800,000 property with a $200,000 deposit already in place, and borrowing the $600,000 purchase price. The loan is calculated against the lower purchase price, while the security is the property at its full market value, so the LVR is typically well below the 80% owner-occupier threshold.

Advantages

• The child may not need to contribute a cash deposit at all, depending on the size of the equity gift and the bank's policy
• The lower LVR can avoid a low-equity premium on the mortgage rate
• Wealth transfers between generations in a single step rather than through a later inheritance
• The child starts with meaningful equity from day one, which provides a buffer against any short-term decline in property values

How lenders approach it

Most lenders will require a registered valuation to confirm the market value. An agent's appraisal or the parents' own estimate will not do. The gifted portion must usually be documented, often through a gifting letter or statutory declaration signed by the parents. The child still needs to meet the bank's servicing and debt-to-income requirements on the loan. Some banks will also want to see a small cash contribution from the child's own savings as evidence of financial discipline. Policies vary, so approaching a mortgage adviser early helps identify which lenders treat equity gifting most favourably.

Risks and complications

Bright-line exposure for the parents. A sale from parent to child is a transfer between associated persons, so the rollover relief described under Option 4 usually applies. The parents are not taxed at the time of the transfer, and the child inherits the parents' bright-line start date and cost. Rollover relief is unavailable where it has already been used on the property within the previous two years. In that case IRD's associated-persons rules treat the transaction at market value rather than the reduced sale price. The parents' main home exclusion then needs to be tested separately, because it does not apply automatically. Confirm the position with an accountant before committing.

Relationship property exposure. As with a straight gift, the equity gifted into a child's first home is likely to become relationship property under the PRA. A contracting-out agreement is the standard tool for ring-fencing the gifted portion, with both the child and their partner receiving independent legal advice.

Residential care look-back. The $200,000 in gifted equity is treated the same way as a cash gift for MSD's five-year residential care subsidy look-back. Parents closer to potential care needs should factor this in before proceeding.

Fairness across children. Transferring a specific property at a below-market price to one child is a significant and visible act. It can be harder to equalise across siblings than a cash gift of equivalent value, because the property itself becomes part of the transaction. Addressing it in the parents' wills or through equivalent help to other children matters even more in this scenario.

Legal advice for both sides. Because parents and child are on opposite sides of the sale, each should have independent legal advice. Separate advice protects against future disputes over whether the terms were properly understood and agreed, and makes any gifting documentation stronger if it is ever tested.

How to choose between these options

The right approach depends on the family's circumstances. A few principles can help narrow the field:

• If protecting the contribution from relationship property claims is a priority, a documented loan (from parents or a trust) offers the strongest position. A gift is the weakest.
• If the child's main constraint is the deposit (they earn enough to service a mortgage but lack savings), a gift or loan toward the deposit is the simplest path.
• If the child's main constraint is borrowing capacity, a guarantee or co-ownership arrangement may be needed, because these directly affect the bank's assessment of the loan.
• If the parent has residential care concerns within the next five to ten years, large gifts carry specific consequences under MSD's asset-testing rules. A loan or trust-based arrangement may be more appropriate.
• If the parent wants to share in the property's growth, co-ownership is the only option providing a direct financial interest, though it carries significant tax and structural complexity.
• If the parents already own a property they are willing to transfer to the child, equity gifting on a family sale can move wealth across generations in a single step. Check the bright-line and associated-persons position with an accountant first.

A common combination

In practice, many families combine approaches. A common pattern: parents provide a cash contribution toward the deposit, but instead of making it an outright gift, they document it as a loan in a deed of acknowledgement of debt. The family then puts a contracting-out agreement in place to protect against relationship property claims. The result is the simplicity of a cash contribution with the legal protections of a loan structure. The combination right for your family depends on the size of the contribution, the child's financial position, and how much legal and administrative complexity everyone is willing to accept.

What typical advice misses

Most families in this position receive advice from a bank, focused on loan approval, and a lawyer, focused on the property transaction. Both are necessary. Neither is typically looking at the full picture.

We commonly see families where nobody has stress-tested the parents' retirement income or factored in potential residential care costs. The bright-line implications of co-ownership go unexamined, and the fairness question across siblings is left to sort itself out later. The difference between a banking conversation and a financial planning conversation is the banker is solving for today's transaction. The financial planner is solving for the next thirty years.

Getting the structure right

Helping a child into their first home is a significant financial decision for both generations, and the structure decides whether the help still looks generous in ten years' time.

If you want to sense-check whether a loan or a gift better fits your situation, or how a guarantee would affect your own borrowing capacity, get in touch. The same applies if you simply want to confirm you can afford to help without compromising your retirement. Our first-home lending team and financial planning advisers work through these questions regularly, and a clear picture before settlement day is worth far more than a correction after it.