What parents need to know about going guarantor on a mortgage

By JP Pelosi ·
Fact Checked
Advertiser disclosure
Parents researching on a laptop.

When you become a guarantor on your kid's home loan, it means you use your home equity as extra security against their loan. This helps make their borrowing such a large sum less risky to the lender, providing your kids with the financial support needed to guarantee or back it.

It also usually means they will pay fewer lender fees and potentially get a lower interest rate, especially if, as a guarantor, you are providing the equivalent of a 20% first deposit (which many lenders prefer). 

Parents helping their kids in this way is more common now, according to Mozo banking expert Peter Marshall.

"It’s a bit more understood that wealth transfers are better off happening when your parents are still around, so the kids don’t have to wait so long to get into the market and can deal with modern house prices,” he says.

But as popular as it has been in recent years, becoming a guarantor requires a big commitment and can be risky for parents.

To give you an idea of what to expect, let's take a closer look.

Jump to...

Why become a guarantor?

Australian Bureau of Statistics (ABS) figures released in mid-2024 indicate that the average mortgage has increased to $626,000.

That means first-time home buyers wanting to keep their loan-to-value ratio (LVR) below 80% and avoid paying lender's mortgage insurance (LMI) would have to save a deposit of at least $125,000.

Lender’s mortgage insurance alone can cost borrowers thousands or even tens of thousands of dollars, which is why it’s a cost many borrowers do their best to avoid. And when you add in other home buying costs like stamp duty, conveyancer fees as well as home insurance, purchasing a first home is not easy.

That’s where parents as guarantors come in. Not only can it help first-time home buyers to avoid paying LMI, but it can also mean giving them access to better home loan rates, as mentioned. After all, many of the sharpest rates are only available to borrowers with an LVR of 80% or less.

Keep in mind that some home loans allow for smaller deposits and still provide decent interest rates. These always need to be researched and compared first however.

Who can be a guarantor?

Different banks and lenders have varying criteria in terms of who can act as a guarantor, but typically it’s a legal guardian or family member over the age of 18.

In Australia, it’s quite often parents who perform the role of guarantor, though grandparents and even siblings have been known to step into the role.

Also be aware that some lenders have maximum caps on the percentage of the loan a guarantor can provide. For example, Westpac says that a single guarantee can only represent up to 50% of the guarantor’s security.

What are the risks of becoming a guarantor?

Although having a parent or family member as a guarantor is great for young borrowers, it can be risky for the guarantor.

One of the main risks is that if the child can’t make monthly mortgage repayments, the guarantor can be liable instead – at least for the portion of the home loan they guaranteed.

If the child defaults on the mortgage, the lender will often sell their home to discharge the mortgage. But if there’s a shortfall – especially if the child had negative equity – the guarantor's own mortgage can be in jeopardy.

This is a considerable financial risk, so you should think long and hard before agreeing to go guarantor for your kids.

Tips for parents becoming a guarantor

So what are some ways to make going guarantor on your kids home loan work for you?

  • Get some good advice. Going guarantor on your child’s home loan is a big commitment, so before you do anything else, seek out some legal and financial advice so you’re fully aware of what’s involved. 
  • Set a limit. An unlimited guarantee can lead to trouble, so instead of a blank cheque, think about limiting your guarantee to a portion of the property price – say 20%. 
  • Find your nearest exit. Early on in the arrangement, sit down with your child and discuss when and how your part in their home loan will end. 
  • Check on your insurance. Making sure your home insurance is up to date and offers adequate cover is key to making sure you – and your child – will be protected if something unexpected happens.

These tactics will help make the home buying process smoother for you and your child.

Other options for helping your kid buy property

If you want to help your kids become home buyers but feel becoming a guarantor isn't right, there are a few other options to consider. 

Briefly, they are to:

1. Gift them the money. 

2. Help them save. 

3. Consider the FHLDS. The First Home Loan Deposit Scheme (FHLDS).

Are your kids looking for a home loan to get into the property market? Compare rates, fees, and features today by heading over to the Mozo home loan comparison hub.

FAQs

How much can I borrow if my parents go guarantor?

If your parents go guarantor, you can borrow up to 100% of the property price. However, this will also depend on which lender you go with and your guarantor’s financial situation, plus how much equity your parents are willing to use to help you. 

How long does a guarantor stay on a mortgage?

There is no time limit on how long a guarantor can stay on a mortgage. That means that your guarantor could be on your home loan until you discharge your mortgage. However, if your guarantor wants to be removed from the loan you’ll be required to refinance your loan.

When can a guarantor be released?

To release a guarantor you’ll either need to pay off your loan in its entirety or refinance your home loan.

What does a guarantor need to provide for a loan?

A guarantor will need to prove that they have a good credit score, equity in the property they’ll use as collateral and a stable income. The bank wants to know that your guarantor will not be a risk and be able to make repayments if you default on the loan.

Can I use my parent's equity as a deposit for a house?

Yes, as long as you have your parents' permission! The equity in their home can help you pay the deposit on a house.

Mozo may receive payment if you click products on our site. We don’t compare the entire market, but you can compare more home loans here.
Last updated 28 November 2024 Important disclosures and comparison rate warning*

Home loan comparisons on Mozo

Promoted

  • Unloan Variable

    • Owner Occupier
    • LVR <80%
    Interest rate
    5.99 % p.a.
    Variable
    Comparison rate
    5.90 % p.a.
    Initial monthly repayment
    $2,995
    Go to site

    Built by CommBank, the Unloan is the first home loan with an increasing discount (conditions apply) for borrowers. No application or banking fees. No monthly account keeping or early exit fees. Apply online in minutes.

  • Fixed Home Loan

    • Owner Occupier
    • Principal & Interest
    • LVR <95%
    Interest rate
    5.69 % p.a.
    Fixed 3 years
    Comparison rate
    6.28 % p.a.
    Initial monthly repayment
    $2,899
    Go to site

    Get the security of a competitive fixed rate home loan for 2 years with IMB. Get up to $4,000 cashback (T&Cs apply). Up to 12 months repayments in advance without penalties. Free Internet and Mobile Banking redraws (T&Cs apply). Up to a 30 year loan term. Split loan available. No offset account.

  • Fixed Rate

    • Owner Occupier
    • Principal & Interest
    • <80% LVR
    Interest rate
    5.74 % p.a.
    Fixed 3 years
    Comparison rate
    6.81 % p.a.
    Initial monthly repayment
    $2,915

    Enjoy up to $3000 cashback for eligible first home buyers and $2000 cashback for refinancers on eligible home loans with the ANZ Fixed Rate Home Loan. Get the security of repayment certainty with a competitive locked in rate. No ongoing fees to pay. Offset account on 1-year fixed loans ($10/month fee applies). Interest-only payments allowed.

  • Elevate

    • Owner Occupier
    • Principal & Interest
    • <80% LVR
    Interest rate
    6.18 % p.a.
    Variable
    Comparison rate
    6.18 % p.a.
    Initial monthly repayment
    $3,056

    Get competitive rates on loan terms of 5 to 30 years with the Aussie Elevate Home Loan. Structure your loan with up to five splits. Make additional repayments (T&Cs apply). Offset accounts available. Unlimited redraw using your online banking account. Choose from weekly, fortnightly or monthly payments For loan amounts from $10,000 to $5 million.

  • Discounted Home Value Loan

    • Owner Occupier
    • Principal & Interest
    • LVR <60%
    Interest rate
    5.99 % p.a.
    Variable
    Comparison rate
    5.99 % p.a.
    Initial monthly repayment
    $2,995

    Enjoy competitive rates for owner occupiers. Enjoy unlimited free extra repayments. Flexibility to redraw additional payments for free. No ongoing monthly service fee. Receive $3,288 cashback when you refinance an existing home loan. Minimum loan amount of $250,000, settle within 120 days from applying.

  • Fixed Rate Home Loan

    • Owner Occupier
    • Principal & Interest
    • LVR <60%
    Interest rate
    5.59 % p.a.
    Fixed 5 years
    Comparison rate
    6.27 % p.a.
    Initial monthly repayment
    $2,867

    Get repayment certainty with HSBC’s low 2 Year Fixed Rate Home Loan. Make up to $10,000 of extra repayments a year. The option to split your home loan between fixed and variable. Plus, score $3,288 cashback when you refinance an existing home loan of $250,000. Must apply by 28 February 2023 and settle by 30 April 2023.

  • Fixed Home Loan

    • Owner Occupier
    • Principal & Interest
    • LVR <95%
    Interest rate
    5.69 % p.a.
    Fixed 3 years
    Comparison rate
    6.28 % p.a.
    Initial monthly repayment
    $2,899
    Go to site

    Get the security of a competitive fixed rate home loan for 2 years with IMB. Get up to $4,000 cashback (T&Cs apply). Up to 12 months repayments in advance without penalties. Free Internet and Mobile Banking redraws (T&Cs apply). Up to a 30 year loan term. Split loan available. No offset account.

  • Fixed Rate

    • Owner Occupier
    • Principal & Interest
    • <80% LVR
    Interest rate
    5.74 % p.a.
    Fixed 3 years
    Comparison rate
    6.81 % p.a.
    Initial monthly repayment
    $2,915

    Enjoy up to $3000 cashback for eligible first home buyers and $2000 cashback for refinancers on eligible home loans with the ANZ Fixed Rate Home Loan. Get the security of repayment certainty with a competitive locked in rate. No ongoing fees to pay. Offset account on 1-year fixed loans ($10/month fee applies). Interest-only payments allowed.

  • Unloan Variable

    • Owner Occupier
    • LVR <80%
    Interest rate
    5.99 % p.a.
    Variable
    Comparison rate
    5.90 % p.a.
    Initial monthly repayment
    $2,995
    Go to site

    Built by CommBank, the Unloan is the first home loan with an increasing discount (conditions apply) for borrowers. No application or banking fees. No monthly account keeping or early exit fees. Apply online in minutes.

  • Discounted Home Value Loan

    • Owner Occupier
    • Principal & Interest
    • LVR <60%
    Interest rate
    5.99 % p.a.
    Variable
    Comparison rate
    5.99 % p.a.
    Initial monthly repayment
    $2,995

    Enjoy competitive rates for owner occupiers. Enjoy unlimited free extra repayments. Flexibility to redraw additional payments for free. No ongoing monthly service fee. Receive $3,288 cashback when you refinance an existing home loan. Minimum loan amount of $250,000, settle within 120 days from applying.

  • Budget Home Loan

    • LVR <80%
    • Owner Occupier
    • Principal & Interest
    Interest rate
    6.04 % p.a.
    Variable
    Comparison rate
    6.07 % p.a.
    Initial monthly repayment
    $3,011
    Go to site

    Enjoy a discounted variable home loan from IMB. Get up to $4,000 cashback (T&Cs apply). Life-of-loan discount off IMB’s standard variable interest rate. Unrestricted additional repayments. Free Internet and Mobile Banking redraws (T&Cs apply). No monthly fees to pay. Up to a 30 year loan term. Split loan available. No offset account.

  • Mortgage Simplifier

    • LVR<80%
    • Owner Occupier
    • Principal & Interest
    Interest rate
    6.14 % p.a.
    Variable
    Comparison rate
    6.17 % p.a.
    Initial monthly repayment
    $3,043

    Get a competitive variable rate with ING’s Mortgage Simplifier. Free extra repayments, no monthly or annual fees. Freedom to make free extra repayments or redraws.

  • Elevate

    • Owner Occupier
    • Principal & Interest
    • <80% LVR
    Interest rate
    6.18 % p.a.
    Variable
    Comparison rate
    6.18 % p.a.
    Initial monthly repayment
    $3,056

    Get competitive rates on loan terms of 5 to 30 years with the Aussie Elevate Home Loan. Structure your loan with up to five splits. Make additional repayments (T&Cs apply). Offset accounts available. Unlimited redraw using your online banking account. Choose from weekly, fortnightly or monthly payments For loan amounts from $10,000 to $5 million.

Showing 8 of 429 home loans. Use the filters to see more
image of houses

Need help with your Home Loan?

Whether you're looking to purchase a new home or refinance your existing loan, our friends at Lendi can help! Lendi’s expert advice is completely free of charge. Book an appointment and enter the draw to win $30K.

Learn more