Moving in with your adult children in retirement: how to do it right

For a long time, the assumption was that retirement meant living independently until age or health forced a move into care. That's changing. More Australian retirees are choosing to move in with their adult children — sometimes to free up the capital tied in their home, sometimes because a hand with care and daily life is welcome, sometimes simply for the company, and often because it helps children who are struggling with housing costs too. Done well, multigenerational living can be one of the warmest and most sensible arrangements a family makes. Done on a handshake and a hope, it can go badly wrong. The difference is almost always in the detail. This article is general information only, not personal advice.

What are the three ways to structure it?

Before any furniture moves, it's worth understanding that "moving in with the kids" is not one thing — there are three broad ways to do it, and the difference matters enormously.

The first is informal: you simply move in, and either no money changes hands or the arrangements are vague. It's the simplest, and it's fine where genuinely no significant money is involved. But if you *have* put money in — helping with the deposit, funding a renovation, selling your own home to make it work — informality is exactly where the risk lives.

The second is a granny flat interest: you pay money (or transfer assets, sometimes your own home) to your children in exchange for the right to live in their home for the rest of your life. This is a recognised arrangement with specific Centrelink rules, and it doesn't require an actual separate flat — it's about the right to live there, not the bricks (Services Australia, https://www.servicesaustralia.gov.au/how-we-assess-granny-flat-interests). Our article on the granny flat interest and Centrelink explains the mechanics in detail.

The third is co-ownership: you and your children jointly own the property, usually as "tenants in common" in defined shares (say, you own 40%, they own 60%). Your share is a clearly-owned asset, which gives you more protection and clarity — at the cost of more formality and complexity. This is a decision to make with a solicitor and a conveyancer in your state.

Should you put your money in at all?

It's tempting, when the family is pooling resources, to tip a large slice of your capital into the home. Pause on that. Putting most of your money into a house you don't fully own concentrates your wealth in a single asset and a single relationship — and takes it out of your own hands. Whatever you decide, keep a meaningful reserve of accessible money of your own, so you're never wholly dependent on the arrangement holding together. Your independence is worth protecting.

How does it affect your Age Pension?

The way you structure the arrangement changes how Centrelink sees you, and that can move your pension. If you pay for a granny flat interest within the rules, the amount you hand over is generally not treated as a gift — so it usually doesn't trigger the gifting and deprivation rules that would otherwise reduce your pension. But there's a catch: Centrelink applies a "reasonableness" test, using actuarial conversion factors, to how much you've paid, and if you pay more than that formula allows, the excess is treated as a gift and can be counted against you as a deprived asset (Services Australia, https://www.servicesaustralia.gov.au/how-we-assess-granny-flat-interests). For context, outside a recognised structure, gifting is only free up to $10,000 in a financial year and $30,000 over five years — anything above that stays counted as your asset for five years (Services Australia, https://www.servicesaustralia.gov.au/gifting), which is exactly why an unstructured contribution to a child's home is so risky. This is technical, and getting it right matters — our articles on the granny flat interest and on the gifting and deprivation rules go into it.

The arrangement can also change whether you count as a homeowner or a non-homeowner for the assets test, which affects your threshold and whether you can claim Commonwealth Rent Assistance. A granny flat interest, for instance, can make you a homeowner in Centrelink's eyes even though your name isn't on the title. That distinction is worth real money: a non-homeowner can hold roughly $267,000 more in assessable assets than a homeowner before the pension starts to reduce — for a single person, an assets-test free area of $600,000 rather than $333,000 (assets-test thresholds effective 1 July 2026; Services Australia, https://www.servicesaustralia.gov.au/assets-test-for-age-pension). Because all of this turns on the fine detail of your specific arrangement, and the thresholds are indexed and change, get your situation checked before you commit any money, not after.

How do you protect your money?

Here is the point that matters most, and the one families most often skip precisely because it's family: get it in writing, and get independent legal advice. Not a handshake, not a note in a drawer — a properly drafted agreement (a granny flat agreement, a co-ownership agreement, or a formal loan agreement, depending on your structure), prepared with a solicitor in your state. It feels awkward to ask for. It is far less awkward than what happens without it.

Think through what could go wrong, because these things do happen. If your child divorces or separates, the family home can be pulled into their family-law property settlement, and your contribution can be exposed unless it's been protected in advance. If your child dies or goes bankrupt, your right to live there and the money you put in can be caught up with their estate or their creditors. And if the relationship simply sours and you need to move out, the question of what happens to your money — whether it's repaid, and how much — is one to spell out now, calmly, while everyone is on good terms. A well-drafted agreement addresses each of these: what you contributed, what right it buys you, and what happens if the arrangement ends for any reason. It protects you, and it protects your child from a mess later too.

One more piece: fairness across your children. If one child houses you and others don't, that can breed resentment and even a family-provision claim on your estate down the track. Address it deliberately in your will — our article on estate equalisation between children covers how.

What about the part that isn't about money?

Finally, the money is only half of it. Talk openly, and early, about the things families assume will "just work out": space and privacy, whose house rules apply, and — importantly — what everyone expects around care. Are your children quietly assuming they'll become your carers as your needs grow? Are you? What happens if your health changes and you eventually need residential aged care anyway? None of these questions has a wrong answer, but leaving them unasked is how goodwill curdles into strain. The families for whom this works best are the ones who talked about all of it before the removalist arrived.

What do the worked examples show?

These show the difference between doing it properly and doing it on a handshake. They are illustrative only, not personal or legal advice.

Consider Margaret, 74, a single retiree who sells her home for about $620,000 and pays $430,000 to her daughter for the right to live in the family home for the rest of her life, keeping roughly $190,000 as her own reserve. On these facts, structuring it as a proper granny flat interest is what protects her: within the reasonableness test that payment is generally not treated as a gift, so it doesn't trigger the deprivation rules, though Centrelink will likely assess her as a homeowner even though her name isn't on the title (Services Australia, https://www.servicesaustralia.gov.au/how-we-assess-granny-flat-interests). On these facts it is generally rational for someone in Margaret's position to have a granny flat agreement drafted by a solicitor, to keep that $190,000 reserve rather than tipping it all in, and to get her Centrelink position and the reasonableness figure checked before the money moves.

Now consider Frank, 68, who instead tips $250,000 into his son's home renovation on a handshake, with nothing in writing. On these facts he has taken on the worst of both worlds: because it isn't structured as a granny flat interest or a documented loan, Centrelink can treat the bulk of it as a gift — with only $10,000 to $30,000 falling inside the gifting-free limits and the rest counted as his asset for five years (Services Australia, https://www.servicesaustralia.gov.au/gifting) — and if his son later divorces, dies or goes bankrupt, the $250,000 and Frank's place to live are both exposed. On these facts it is generally rational for someone in Frank's position to stop and formalise the arrangement — as a granny flat interest or a proper loan agreement with independent legal advice — before, not after, the money changes hands.

What should you do in short?

Moving in with your adult children can be a genuinely good decision — cheaper, warmer, and more supported than living alone. Just do it properly: choose your structure with open eyes, get independent legal advice and a written agreement every time, have your Centrelink position checked before any money moves, keep a reserve of your own, and update your will. The intimacy that makes this arrangement appealing is exactly why it needs to be documented — not despite it being family, but because of it. For a decision this significant, a licensed financial adviser and a solicitor in your state are well worth the cost.

Sources

• Services Australia — How we assess granny flat interests
• Services Australia — Gifting
• Services Australia — Assets test for Age Pension
• Services Australia — Rent Assistance
• ASIC MoneySmart — Wills and powers of attorney