Specialist Lending Situations › What are the pros and cons of a guarantor home loan?

What are the pros and cons of a guarantor home loan?

A guarantor home loan lets a family member, usually a parent, secure part of your loan against their own property, so you can buy with little or no deposit and often avoid Lenders Mortgage Insurance. The main advantage is getting into the market sooner. The main risk is that the guarantor is legally liable for the guaranteed portion, so they should get independent legal advice.

Ross McFarlaneWritten by Ross McFarlane, Licensed Mortgage Broker (Credit Representative 526725). About the author

A guarantor home loan can be the difference between buying now and waiting years to save a deposit, which is why it is so commonly used by first home buyers. It also places a real obligation on a family member, so it deserves a clear eyed look at both sides. Here are the genuine pros and cons.

How a guarantor loan works

In a guarantor loan, a family member, usually a parent, offers part of their own property as additional security for your loan. This lifts your effective security to the equivalent of a larger deposit, so you can borrow with little or no deposit of your own and often without Lenders Mortgage Insurance. The guarantor does not usually give you cash, they pledge security.

The advantages

The main advantage is getting into the market sooner, without waiting years to save a full deposit, and often avoiding the Lenders Mortgage Insurance premium. For buyers who can comfortably service a loan but cannot quickly save a deposit, a guarantor can bring forward home ownership by a long time, which can be valuable if prices are rising.

The guarantor takes on real risk

The central downside is that the guarantor is legally responsible for the guaranteed portion of the loan. If you cannot repay, the lender can call on the guarantor, and in the worst case their property is at risk. This is a serious obligation, not a formality, so the guarantor needs to understand exactly what they are agreeing to.

It can affect the guarantor too

Acting as guarantor can affect the guarantor own borrowing capacity, because the guarantee is a commitment lenders take into account. It can also create family tension if things go wrong. These are real considerations for the guarantor, alongside the financial risk, and they are part of why the decision should not be rushed.

Independent legal advice is essential

Lenders generally require, and it is strongly advisable, that the guarantor gets independent legal advice before signing, so they understand the obligation fully and are not pressured. This protects the guarantor and ensures the arrangement is entered into with full knowledge. It is not a step to skip.

The guarantee can usually be released

A guarantee is not necessarily forever. Once you have built enough equity in your property, through repayments and any value growth, so that your loan to value ratio falls to a level the lender is comfortable with, the guarantee can often be released and the guarantor security removed. Having a clear path to release is part of a sensible arrangement.

Who it suits

A guarantor loan suits a borrower who can comfortably afford the repayments but lacks the deposit, with a family member who genuinely understands and accepts the risk. It is less suitable where the borrower repayments would be a stretch, because that is exactly the situation where the guarantor obligation could be called on.

Talk it through properly

Because a guarantor loan involves two parties and a real obligation, it is worth planning carefully and openly. A broker can explain how the structure works, what the guarantor is committing to, and the path to releasing the guarantee, usually at no cost to you, and the guarantor should get independent legal advice before proceeding.

In our experienceThe arrangements that work well are the ones where everyone goes in with eyes open: the borrower can clearly afford the repayments, the guarantor fully understands the risk and has had independent advice, and there is a plan to release the guarantee. Rushed arrangements are where the regret comes from.
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Frequently asked questions

How does a guarantor home loan work?

A family member, usually a parent, offers part of their own property as additional security for your loan. This lifts your effective security so you can buy with little or no deposit and often avoid Lenders Mortgage Insurance.

What is the risk for the guarantor?

The guarantor is legally responsible for the guaranteed portion of the loan. If you cannot repay, the lender can call on the guarantor, and in the worst case their property is at risk. It is a serious obligation.

Can a guarantor be released later?

Usually yes. Once you have built enough equity so your loan to value ratio falls to a level the lender is comfortable with, the guarantee can often be released and the guarantor security removed.

Does the guarantor need legal advice?

Yes. Lenders generally require, and it is strongly advisable, that the guarantor gets independent legal advice before signing, so they fully understand the obligation and are not pressured.

Last reviewed: June 2026

General information only. This page provides general information about home loans and is not financial or credit advice, a quote, or a guarantee, and your personal circumstances have not been considered. Lending policies, interest rates, fees and eligibility vary by lender and change over time. Always confirm your own situation with a licensed mortgage broker or lender before acting. Ross McFarlane (Credit Representative 526725) is an authorised Credit Representative of Australian Associated Advisers Pty Ltd t/a Keylend, Australian Credit Licence 392169.