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GUARANTOR HOME LOANS

Family helping family, done properly

A guarantee can bridge the deposit gap and eliminate lenders mortgage insurance. But it commits your family's property. We make sure everyone understands what they are signing, the exit is planned, and nobody is left wondering.

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Last reviewed: August 2026
HomeHome LoansGuarantor home loans
How it works

How a guarantor loan works

A guarantor loan lets someone buy a home with less deposit by using a parent's (or close family member's) property as additional security. The buyer still needs to service the loan entirely from their own income. The parent's property simply provides the lender with extra collateral, bridging the gap between the buyer's deposit and the 20% the lender would normally require.

The guarantee is limited to a specific dollar amount, not the full loan. It sits as a second mortgage on the parent's property title. Once the borrower's loan balance drops below 80% of their property's value, the guarantee is released and the parent's property is freed entirely.

This structure means no lenders mortgage insurance, no need for a full 20% deposit, and a clear path to independence for the borrower. Most guarantees release within 3 to 5 years through a combination of loan repayments and natural property growth.

Example

The numbers in practice

Here is a typical guarantor scenario for a first home buyer in Adelaide.

$650k
Purchase price
$30k
Buyer's own deposit
$100k
Guarantee amount
$0
LMI payable

Without the guarantee, this buyer would either need an additional $100,000 in savings or pay roughly $15,000 to $20,000 in lenders mortgage insurance. The guarantee bridges the gap at no direct cost, and the parent's exposure is capped at $100,000 from day one.


What we do differently

Guarantor lending, the Lendology way

Most brokers focus on getting the loan approved. We focus on making sure everyone involved is genuinely comfortable before a single form is signed.

The honest conversation

We explain the guarantee to the parents without the borrower in the room. The worst case and the likely case, in plain language, with time to think. No pressure, no rush. Parents deserve to understand exactly what they are agreeing to before emotions or family expectations get involved.

Limited, always

We only structure limited guarantees. The parent's exposure is capped at a specific dollar amount, never the full loan. If anything goes wrong, the maximum claim is known from the start. This is not negotiable for us. A guarantee should have a defined boundary, and we make sure it does.

The exit strategy

We diarise the guarantee release review. We tell everyone when to expect it and who raises it. The guarantee is temporary. We make sure it feels that way. Nobody should be wondering three years later whether the guarantee is still there or who is supposed to do something about it.


For parents

The guarantee conversation

If you are a parent considering becoming a guarantor, here is what we walk you through before anything is signed.

1
What you are guaranteeing
A specific dollar figure, stated plainly. Not the full loan, not an open-ended commitment. We tell you exactly how much and what that means for your property.
2
What gets registered against your property
A second mortgage for the guaranteed amount is registered on your property title. It sits behind your own home loan (if you have one). We explain exactly how this appears and what it means if you want to refinance or sell.
3
What happens if the borrower can't pay
We give you the honest worst case. If the borrower defaults and the lender sells the property at a loss, the lender can make a claim against the guaranteed portion. This is rare, but you deserve to know it is possible. We also explain all the steps that happen before it reaches that point.
4
What happens in the likely case
The borrower pays their mortgage, the property grows in value, and in 3 to 5 years the loan balance drops below 80% LVR. At that point, the guarantee is released and the second mortgage on your property is removed. This is how the vast majority of guarantor loans play out.
5
Independent legal advice
Every lender requires guarantors to receive independent legal advice. This means sitting down with a solicitor (separate from the borrower's solicitor) who explains the guarantee document, confirms you understand the risks, and signs a certificate. This is not a formality. It is a genuine layer of protection, and we frame it that way. We can recommend solicitors who are experienced in this process.
6
Your right to say no
This is important. No is a perfectly good answer. If the numbers do not feel right, if the timing is wrong, or if you simply are not comfortable, that is completely fine. Lendology will never pressure a parent into a guarantee. We would rather find an alternative path for the borrower than have a family member sign something they are not sure about.

A note to parents: Most of the people reading this page are parents who have been asked to help. We understand this is a big decision. Our job is to make sure you have every piece of information you need, explained clearly, before you decide. Whatever you decide, we will support it.


Common questions from parents

What parents ask us most

These are the questions we hear in almost every guarantor conversation. They are good questions, and they deserve straight answers.

"Can we lose our house?"
With a limited guarantee, your exposure is capped at a specific dollar amount, not your entire property. In the worst case, the lender could pursue the guaranteed amount if the borrower defaults and the sale of their property does not cover the debt. But this is the end of a very long road. Before it gets anywhere near that point, there are months of missed payments, hardship discussions, and time to find a solution. In the likely case, the borrower pays normally, the guarantee releases in a few years, and your property is never affected.
"How long does this last?"
Most guarantees release within 3 to 5 years. It depends on how quickly the borrower's loan balance drops below 80% of the property value, which happens through regular repayments and property growth. Lendology diarises the review date and contacts both parties when it is time to apply for the release. You will not be left wondering.
"What if they want to sell?"
If the borrower sells their property, the loan is repaid in full from the sale proceeds and the guarantee is released at the same time. The second mortgage on your property is removed as part of the settlement process. If there is a shortfall (which is uncommon), the guaranteed amount may be called upon, but only up to the capped limit.
"Do we need our own lawyer?"
Yes. Every lender requires guarantors to obtain independent legal advice from a solicitor who is separate from the borrower's legal representative. The solicitor reviews the guarantee documents with you, explains exactly what you are agreeing to, and confirms you understand the commitment. This is a requirement, but it is also genuinely useful. We recommend solicitors who are experienced with guarantor loans and can explain things in plain language.

Frequently asked questions

FAQs

Can my parents lose their house if I can't pay?
With a limited guarantee, the parents' exposure is capped at a specific dollar amount, not the full loan. In the worst case, the lender could make a claim against the guaranteed portion, but this only happens after extended default and all other options are exhausted. Lendology only structures limited guarantees and ensures parents understand exactly what they are signing.
How long does a guarantor stay on the loan?
Typically 3 to 5 years. The guarantee releases once the borrower reaches 80% loan to value ratio through a combination of loan repayments and property value growth. Lendology diarises the guarantee release review so nobody has to remember to raise it.
Does being a guarantor affect my parents' borrowing capacity?
Yes. The guaranteed amount is treated as a contingent liability on the parents' credit file, which can reduce their own borrowing capacity while the guarantee is active. Lendology explains this upfront so parents can plan accordingly.
Can I use a guarantor for an investment property?
Most lenders restrict guarantor support to owner-occupied purchases. A small number allow it for investment lending with additional conditions. Lendology identifies which lenders allow guarantor support for your specific purchase type.
What if my parents have an existing mortgage on their property?
Parents can still act as guarantors if there is sufficient equity in their property above their existing mortgage. The guarantee is secured against the available equity, not the full property value. Lendology calculates this as part of the initial assessment.
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