Keys to a first home being handed over on the front step

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Guarantor loans: how your parents can get you in years sooner

July 2026 · 6 min read

The biggest thing standing between most first home buyers and a house isn't the repayments. It's the deposit.

You can be earning well, paying more in rent than a mortgage would cost, ticking every box, and still be stuck. Because saving a full 20% deposit while rent eats your pay and prices keep moving is a race a lot of good people can't win. A guarantor loan is one of the cleanest ways around that wall, and it's one of the most misunderstood tools going. So let's break it down properly: what it actually is, why it's so powerful for first home buyers, and the risks I'll never let anyone sign without understanding.

What a guarantor loan actually is

Here's the part most people get wrong. A guarantor doesn't hand over a cent. No cash, no gift, no dipping into their savings.

What they do is offer up the equity sitting in their own property as extra security for your loan. Usually it's Mum and Dad. The bank takes a limited slice of their home as backup, which fills the gap where your deposit falls short. That lets you borrow the amount you need without having saved the full 20% yourself, and often without paying Lenders Mortgage Insurance on top. The property you're buying is still yours, the loan is still in your name, and you make every repayment. Their place is just the safety net behind it.

Why it's such a weapon for first home buyers

When it fits, a guarantee changes the whole timeline. Here's what it actually unlocks:

  • You buy years sooner. Instead of grinding away saving a full deposit while prices move, you get in now. In a lot of markets the growth you'd miss while saving is bigger than the deposit itself.
  • You can skip Lenders Mortgage Insurance. Buying with a small deposit usually means paying LMI, which can run into thousands. A guarantee can wipe that cost out entirely.
  • Your own savings stay yours. Because the guarantor covers the security shortfall, you don't have to pour every dollar into the deposit. You keep a buffer for moving costs, furniture, or just breathing room.
  • It stacks with the grants. A guarantee can sit alongside first home buyer schemes and stamp duty concessions where you're eligible, not instead of them.

I've helped plenty of first home buyers who were doing everything right and still couldn't crack the deposit wall get their keys through a guarantee. Not because they suddenly earned more, but because the structure finally matched their real situation.

The risks. And I mean it, read this bit.

This is where I get straight with you, because a guarantee is a genuine commitment and anyone who tells you otherwise is doing you dirty.

Your guarantor is legally on the hook for the guaranteed portion of your loan. If it all goes pear-shaped and the loan can't be repaid, the bank can come after that slice of their property. That's real. It's their home on the line, not just a signature.

There's more to sit with. Tying up their equity can affect the guarantor's own borrowing power, so if they're planning to buy, renovate or refinance, that needs thinking through first. And there's the part no numbers show: money between family can strain a relationship if it isn't handled with eyes wide open. That's why every lender makes the guarantor get their own independent legal advice before signing, and that's a rule I'm glad exists.

How I protect the people helping you

Here's the difference between a guarantee done properly and one that isn't. It's the word limited.

Structured right, the guarantee is capped at just the shortfall, the gap between your deposit and where the bank needs you to be. Not the whole loan. So a guarantor's exposure is a defined, contained number, not an open cheque against your entire mortgage. Getting that cap right, and choosing a lender that treats guarantors sensibly, is a big part of what I do before anyone puts pen to paper. The goal is always the smallest possible commitment from the people backing you.

It doesn't last forever

A guarantee isn't a life sentence for Mum and Dad, and that matters. It's a leg-up, not a lifelong tie.

As you pay your loan down and your property grows in value, you build your own equity. Once you're holding enough on your own, we revalue and release the guarantor. Their property is handed back, free and clear, with no strings. For a lot of my clients that happens faster than they expected. The guarantee gets them in the door, and a few years later it quietly falls away.

The one move to make

If your income's fine but the deposit is the thing holding you back, don't write off buying for another three or four years before you've checked this properly. A guarantor loan isn't right for everyone, and I'll tell you straight if it's not right for you. But when it fits, it's the difference between renting and owning, and between now and someday.

Have the chat. Bring your parents in on it if that's the road you're weighing. I'll walk all of you through exactly how it works, what the real commitment is, and whether the numbers genuinely stack up before anyone signs a thing.

Guarantor loan questions I get asked most

Does a guarantor have to hand over any cash?

No. A guarantor isn't gifting money. They're offering the equity in their own property as extra security so you can borrow without a full 20% deposit. No cash changes hands, and their savings stay their savings.

Is my guarantor on the hook for my whole loan?

It shouldn't be. A properly structured limited guarantee caps their exposure to just the shortfall portion, not the entire loan. That's a huge part of setting these up the right way, and something I lock in before anyone signs.

Can the guarantee ever be removed?

Yes, and that's the goal. Once you've paid the loan down and your property has grown enough that you hold roughly 20% on your own, we can revalue and release the guarantor. Their property is no longer tied up.

Who can be a guarantor?

Usually parents. Most lenders want an immediate family member with enough equity in their property. They'll also need their own independent legal advice before signing, which lenders insist on for good reason.

What happens if I can't make the repayments?

This is the real risk and I never gloss over it. If the loan defaults and can't be recovered, the guarantor is liable for the guaranteed portion, and their property is on the line. That's exactly why we structure it tightly and only do it when the numbers genuinely stack up.

A.C.N. 663 382 974 Pty Ltd, ABN 93 663 382 974, trading as Bayley the Broker, Credit Representative 544688 is authorised under Australian Credit Licence 246786 (Lendi Group Distribution Pty Ltd). The information on this page is general in nature and doesn't take into account your objectives, financial situation or needs. It isn't credit assistance or a credit quote. Your full situation will be assessed before any product is recommended. Terms, conditions, fees and charges may apply, and normal lending criteria apply, approved applicants only. Rates are subject to change. MFAA Accredited Broker (Member No. 974323). Member of the Australian Financial Complaints Authority (AFCA Member No. 95515).

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