Helping an adult child buy their first home has become one of the most common financial decisions Australian parents make. It is also one of the least planned, because it usually arrives with a deadline attached. A property has been found, an offer is due, and a decision that will shape your retirement gets made in a fortnight.
The instinct to help is a good one. What matters is choosing a form of help you can genuinely afford, and understanding that the differences between a gift, a loan and a guarantee are far larger than they appear.
The question to answer before any others
Ask this first, and answer it honestly.
If this money never came back, would your retirement still work?
Not “is it likely to come back”. Assume it does not. Assume the relationship ends, the business fails, the illness happens, or life simply goes the way life sometimes goes.
If the answer is yes, you have real capacity to help and the rest of this article is about doing it well. If the answer is no, then what is being contemplated is not help. It is moving risk off your child’s balance sheet and onto your retirement, and your child would almost certainly not want that if they understood it.
There is no shame in a smaller contribution. Parents routinely give more than they can afford because the alternative feels like a refusal, and they do it without ever running the numbers. Working out that number properly is the core of retirement planning in Adelaide, and it takes an hour rather than a fortnight.
The five ways to help, and what each really costs
A cash gift
The simplest and the most final. The money is gone, it forms part of your child’s assets, and you have no claim on it.
It is also the most exposed. Money gifted to a child in a relationship generally becomes part of the pool available in a property settlement if that relationship ends. Many parents have watched half a deposit leave the family this way, and it is the single most common regret we hear.
A documented loan
Structurally the same money, with a very different legal character.
Where there is a genuine written agreement with repayment terms, and where the parties actually behave as though it is a loan, it is far more likely to be treated as a liability rather than as a gift. That matters enormously in a family law context, because a liability is deducted from the pool before it is divided.
The critical word is “genuine”. Family courts frequently find that arrangements described as loans were actually gifts, where nothing was documented, no repayment was ever sought, and no one behaved as though a debt existed. A loan agreement written after a relationship starts to fail carries very little weight.
Doing it properly means a written agreement signed by everyone, clear repayment terms, and ideally security registered over the property. Security usually requires the mortgage lender’s consent, so it needs to be raised before settlement rather than after.
Going guarantor
The most common and the least understood. This one gets its own section below.
Co-ownership
Buying together, usually as tenants in common in agreed proportions, keeps your capital attached to an asset rather than handing it over.
The costs are real though. Your share does not attract the main residence exemption, so capital gains tax applies to your portion on sale. Land tax may apply. Both parties are exposed if either wants out at a different time, and there is no automatic mechanism to force a sale on reasonable terms unless you have written one.
It works where there is a clear written agreement covering who pays what, how the property is valued if one party exits, and what happens on death, relationship breakdown or a decision to move.
Buying it yourself and letting them live there
This route has become materially less attractive, and it is worth knowing why before anyone suggests it.
You lose the main residence exemption on that property, so capital gains tax applies on sale. Land tax generally applies. And under the measures announced in the 2026 Budget, net rental losses on established residential properties acquired after 12 May 2026 are quarantined from 1 July 2027, so they can no longer be offset against your salary or other income in the year they arise.
The tax argument that used to support this arrangement has largely gone. If someone is still recommending it to you on negative gearing grounds, ask when they last checked the rules.
Going guarantor: what you are actually signing
A family or security guarantee usually involves offering your own home as additional security for part of your child’s loan, typically enough to bring the loan-to-value ratio under 80% so the child avoids lenders mortgage insurance. No money changes hands, which is precisely why parents underestimate it.
Here is what it means in practice.
Your home is on the line. If your child cannot meet the loan and the shortfall cannot be recovered from their property, the lender can pursue you, and ultimately your home is the security. This is not a theoretical risk in a downturn where the property has also fallen in value.
It restricts you. A guarantee is a contingent liability. It can reduce your own borrowing capacity, complicate a decision to downsize, and limit what you can do with your own equity while it remains in place.
It does not end automatically. Release generally requires the loan to fall to a level the lender accepts, usually below 80% of the property’s value, and typically requires a revaluation and a formal application. Left unattended, a guarantee can sit there for a decade.
You may not hear about problems early. A guarantor is not always notified when payments are missed, which means the first news can arrive well after the situation has deteriorated.
If you are going to do it, several conditions make it far safer. Insist on a limited guarantee capped at a specific dollar amount rather than an open-ended one. Agree a written exit plan with your child, including the point at which you will apply for release and who arranges the valuation. Ask the lender whether you can be notified of missed payments. Make sure your child holds adequate income protection and life cover, because their inability to earn is your exposure. And get your own independent legal advice, which lenders generally require in any case, and treat it as a genuine review rather than a formality.
The Centrelink dimension
If you are receiving the Age Pension, or expect to claim it within five years, gifting rules apply and they catch a lot of people out. This is one of the most common points where financial planning and a family decision collide.
You can gift up to $10,000 in a financial year, and no more than $30,000 across a rolling five-year period. Both limits operate together, and whichever you reach first is the one that binds. The same limits apply to a couple combined rather than to each member.
Anything above those limits is treated as a deprived asset. Centrelink continues to count it as though you still hold it for five years from the date of the gift, under both the assets test and, through deeming, the income test. You no longer have the money, but you are still assessed on it.
Three points follow that people frequently miss.
It applies retrospectively. Centrelink looks back five years when you claim, so a large gift made at 62 is still assessed if you claim the Age Pension at 65. Give at 61 and claim at 67 and the clock has run.
Forgiving a loan is a gift at the moment you forgive it. Structuring help as a loan and quietly writing it off later does not avoid the rules, it just moves the date.
A genuine loan is not a gift, but it is still an assessable asset of yours and is deemed to earn income. It is treated differently, not invisibly.
Our guide to gifting rules and the Age Pension covers this in more detail, and it is worth reading before making any large transfer.
Other arrangements worth knowing about
Some families run the arrangement in the other direction, with a parent contributing to a child’s property in exchange for a right to live there. Granny flat interests have their own specific Centrelink treatment and their own reasonableness test, and they can work well, but they are easy to get wrong and difficult to unwind. If that is being contemplated, read our article on granny flat arrangements first and get advice before any money moves.
The risk to your own retirement
Beyond the specific mechanics, three things deserve weight.
Capital given at 60 cannot be earned back. A working-age person who loses money has time and income to recover. A retiree has neither. The same dollar amount is a very different loss depending on when it happens.
Money in a child’s house is not available for your later needs. Aged care costs, health expenses, home modifications and simply having enough to live comfortably all arrive later, and they arrive as cash requirements.
Reducing your assets may increase your Age Pension, but only within the rules. Some parents assume that giving money away will lift their pension. Beyond the gifting free areas, it does not, because deprivation keeps the amount on your record for five years. If a large gift or loan would leave you short later, the harder question is what your retirement actually costs, which we work through in our guide on how much savings you need to retire.
Fairness between children
Help given to one child at one point in time and to another a decade later rarely feels equal to anyone.
Two practical steps prevent most of the resentment. Write down what each child received and when, including whether it was a loan or a gift. And revisit your will, because an estate divided equally after unequal lifetime help produces an unequal overall result, whether or not that is what you intended. Equalisation can be handled in the will, but only if someone thinks of it.
Help that costs you nothing
Not all useful help involves capital.
Letting an adult child live at home rent-free or at reduced rent while they save is often worth more than a deposit contribution, and it costs you far less. The government’s Home Guarantee Scheme allows eligible buyers to purchase with a small deposit without lenders mortgage insurance, which may reduce or remove the need for a guarantee. The First Home Super Saver Scheme lets your child use their own superannuation to build a deposit tax-effectively. And helping them get proper advice on borrowing capacity, budgeting and what they can realistically afford is genuinely valuable and free.
It is worth exhausting these before committing capital, because most families do the reverse. If you are also setting money aside for younger grandchildren rather than helping an adult child now, our guide to investing for children and grandchildren covers the structures and the tax traps.
A sensible order of operations
Work out what you can afford to lose entirely, without reference to what the property costs. Decide the form the help takes, and be honest about whether it is a gift or a loan rather than leaving it ambiguous. Document it properly before settlement, not afterwards. Check the Centrelink consequences before the money moves rather than after. Talk to your other children. Then update your will.
The step families skip most often is the first one, and it is the only one that protects you.
Getting it right
This decision usually arrives quickly and involves a large, largely irreversible commitment, which is a poor combination. It is worth an hour of modelling before it happens rather than a difficult conversation afterwards.
If you are weighing up how to help an adult child into a home, we can work through what you can genuinely afford, which structure fits, and what it does to your Age Pension position and your longer-term plan. Our retirement advice service covers exactly this. Get in touch before the offer is due, not after.
Frequently asked questions
How much money can I give my children without affecting my Age Pension?
You can gift up to $10,000 in a single financial year and no more than $30,000 across a rolling five-year period. Both limits apply at once and the same amounts apply to a couple combined rather than to each person. Anything above those limits is treated as a deprived asset and continues to be assessed under both the assets and income tests for five years from the date of the gift.
Is it better to gift money or lend it to my children?
A properly documented loan offers considerably more protection if your child’s relationship ends, because a genuine liability is deducted before the property pool is divided, while a gift generally forms part of that pool. The agreement must be real, in writing, with repayment terms, and the parties need to behave consistently with it. An undocumented arrangement described as a loan is often treated as a gift.
What are the risks of going guarantor on my child’s home loan?
Your own home is typically the additional security, so if your child cannot meet the loan and the shortfall cannot be recovered from their property, your home is exposed. A guarantee also reduces your borrowing capacity, can complicate downsizing, and does not end automatically. Release usually requires the loan to fall below a level the lender accepts and a formal application supported by a revaluation.
How do I get released from a guarantee?
Release generally requires the child’s loan to fall to a proportion of the property’s value that the lender will accept, commonly below 80%, which can happen through repayments, property growth or a lump sum. It usually requires a fresh valuation and a formal application. Agreeing the target and the timing with your child in writing at the outset makes this far more likely to happen.
Can I buy a property and let my child live in it?
You can, but the tax position has worsened. You lose the main residence exemption on that property, land tax generally applies, and under the measures announced in the 2026 Budget, net rental losses on established residential properties acquired after 12 May 2026 are quarantined from 1 July 2027 and can no longer offset your other income in the year they arise.
Does forgiving a loan to my child count as gifting?
Yes. Forgiving a loan is treated as a gift at the point you forgive it, and the gifting limits and five-year deprivation rules apply from that date. Structuring help as a loan and later writing it off does not avoid the rules, it changes when they apply.
How much should I help my children with?
The amount you could lose entirely without changing your own retirement. Work that out independently, before looking at what the property costs or what the shortfall is. If the help you are contemplating exceeds it, a smaller contribution combined with non-financial support is usually the better answer for everyone.
General advice warning. This article contains general information only and does not take into account your objectives, financial situation or needs. It is not legal or tax advice. Guarantees, loan agreements and co-ownership arrangements are legal documents with significant consequences, and independent legal advice is essential before signing any of them. Centrelink limits and rules change, and references to announced Budget measures reflect our understanding at the date of publication. Please seek personal financial, legal and taxation advice before acting on any of it.
