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Guarantor Home Loans

Use a Family Guarantee to Buy Your First Home
Wanna Finance can help secure a guarantor loan for homeowners in Perth and Mandurah. A guarantor loan lets your parents or family use their home equity to cover your deposit shortfall. Andy structures these so you understand exactly when the guarantee can be released.

Talk to Andy About a Guarantor Loan

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What Is a Guarantor Home Loan?

A guarantor loan is a home loan where a family member — usually a parent — uses the equity in their own property to act as additional security for your loan. Instead of saving a 20% deposit or paying lenders mortgage insurance (LMI) on a smaller deposit, the lender accepts the guarantor’s property as a guarantee for the shortfall.

The guarantor doesn’t hand over cash; they’re offering their home as backup security. If you can’t meet the repayments, the lender can pursue the guarantor’s property to recover the debt. In practice, the guarantor’s exposure is limited to the amount they’ve guaranteed — typically 10-20% of your property value — not the entire loan.

Most lenders structure guarantor loans so the guarantee can be removed once you’ve built enough equity in your property, either through property value growth or paying down the principal. For a typical Mandurah or Baldivis buyer purchasing a $550,000 home with a 5% deposit, the guarantor might secure $80,000-$110,000; after 2-3 years of moderate capital growth and consistent repayments, the borrower refinances to release the guarantee and the guarantor’s property is free.

The key planning point: Andy maps out the release timeline before you apply. You’ll know the equity threshold needed, the likely timeframe based on Perth southern corridor growth rates, and what happens if values stagnate or you want to release the guarantee early by topping up from savings.

Guarantor Loan vs Low-Deposit LMI Loan

Two common paths for first home buyers without a 20% deposit: a guarantor loan or a low-deposit loan with LMI. Here’s how they compare for a $550,000 purchase in the Perth southern corridor:

Factor Guarantor Loan 5% Deposit + LMI
Upfront LMI cost $0 (guarantee replaces LMI) ~$18,000-$22,000 (capitalised into loan)
Loan amount $522,500 (95% LVR) $540,500 (95% + LMI capitalised)
Monthly repayment (6.5% variable) ~$3,305 ~$3,420
Guarantor exposure ~$80,000-$110,000 secured against guarantor’s property None (no guarantor involved)
Release timeline Typically 2-4 years once LVR drops below 80% N/A (no guarantee to release)
Total interest paid (first 5 years) ~$162,000 ~$168,000

The guarantor loan saves you the LMI premium upfront and results in lower monthly repayments, but it ties your guarantor’s equity into your loan for 2-4 years. The LMI route costs more initially but keeps your family’s finances separate. Andy explains both options with real numbers for your scenario and helps you choose based on your guarantor’s comfort level and your expected income growth.

What Most People Get Wrong about Guarantor Release

Most guarantor conversations focus on how much deposit you save — the conversation I have is how fast we can get the guarantor off the title.

A typical Perth buyer expects to release the guarantee ‘when the loan’s paid off’; in reality, you can usually release it within 2-4 years once the property value rises or you pay down 10-15% of the principal. For a $550,000 Mandurah home purchased in 2023 with a guarantor covering $100,000, moderate growth of 4-6% annually plus $15,000 in principal repayments could bring the loan-to-value ratio (LVR) below 80% by mid-2026 — at that point, you refinance or request a guarantee discharge and your parents’ property is free.

What delays release: buyers treating the guarantor loan like any other home loan and not tracking their equity position. I set up a release roadmap at settlement: you’ll know your current LVR, the target LVR for discharge (typically 80%), and whether you’re on track based on quarterly valuations. If growth is slower than expected, we discuss options — making extra repayments to hit the threshold sooner, or waiting another 12 months.

Another common miss: buyers assume the guarantor is liable for the full loan amount. In a limited guarantee (the structure most lenders use), the guarantor’s liability is capped at the guaranteed portion — usually 10-20% of the property value — not the entire $522,500 loan. If you default, the lender pursues you first; they only call on the guarantor’s property for the shortfall up to the guarantee limit. It’s still serious exposure, but it’s not an open-ended commitment to your entire mortgage.

Why Buyers in Mandurah and Rockingham Use Guarantor Loans

Buy 2-4 Years Sooner

Skip the extra years of saving a 20% deposit. A guarantor loan gets you into the market while prices are still within reach and rental costs aren’t climbing.

Avoid $18,000+ in LMI

Lenders mortgage insurance on a $550,000 Perth property with a 5% deposit costs $18,000-$22,000. A guarantor replaces that premium with family equity — you pay nothing upfront.

Stronger Borrowing Power

The guarantor’s equity reassures lenders, which can translate to a higher borrowing limit or approval when your income alone sits on the serviceability borderline.

Clear Release Plan from Day One

Andy structures the loan with a defined release pathway — you’ll know the equity target, the likely timeline, and what to do if you want to exit the guarantee early.

What a Guarantor Loan Costs (and What It Saves You)

Upfront, a guarantor loan saves you the lenders mortgage insurance premium — $18,000-$22,000 on a typical $550,000 Perth purchase with a 5% deposit. You’ll still pay standard loan application fees ($300-$600), valuation fees for both properties (~$200-$400 each), and settlement/legal fees (~$1,200-$1,800). The guarantor pays for their independent legal advice — usually $300-$600 — and this cost is borne by them, not added to your loan.

Ongoing, your loan repayments are slightly lower than a loan with capitalised LMI because your principal is smaller. On a $522,500 loan at 6.5% variable, you’ll pay roughly $3,305 per month vs $3,420 on a loan that includes LMI. Over 5 years, that’s a saving of ~$6,900 in interest, plus the $20,000 LMI you never paid.

When it’s time to release the guarantee, you’ll pay for a property valuation (~$200-$300) and a discharge fee to remove the guarantee from the guarantor’s title (~$300-$500). Some lenders waive the discharge fee if you’re refinancing with them at the same time. Total release cost: $500-$800, plus solicitor fees if the guarantor wants their own legal sign-off on the discharge (not always required, but common).

The hidden cost is opportunity cost for the guarantor: their borrowing capacity is reduced while the guarantee is in place, because lenders treat the guaranteed portion as a liability when assessing their serviceability. If your parents were planning to refinance or invest themselves, the guarantee might delay that by 2-3 years. Andy discusses this trade-off with the guarantor directly — it’s not a deal-breaker, but it’s a real constraint that needs to be on the table before anyone signs.

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Guarantor Loan vs Parental Gift — Which Makes More Sense?

If your parents have cash available, they face a choice: gift or guarantee. A cash gift (often $50,000-$100,000) boosts your deposit, avoids LMI, and keeps their property untouched — but it’s an outright transfer of wealth they can’t claw back. A guarantor loan preserves their cash, lets you buy now, and gives them a legal claim on your property if things go wrong — but ties their home equity into your loan for 2-4 years.

In Andy’s experience, guarantor loans suit families where the parents have strong equity but limited liquid savings, or where the buyer expects rapid income growth and wants to release the guarantee within 3 years. Cash gifts suit families where the parents are retired, the cash won’t affect their lifestyle, and they’re comfortable with the buyer owning the property outright from day one.

A hybrid approach: the parents gift a smaller amount (say $30,000) to get you to a 10% deposit, then guarantee the remaining 10% to avoid LMI. This reduces the guarantee exposure and means release happens sooner — often within 18-24 months. Andy models all three scenarios with your actual property price, deposit, and projected income so you can compare the release timelines and total costs side by side.

Guarantor Loan Questions Perth Buyers Ask

Most lenders require the guarantor to be an immediate family member — parent, sibling, or sometimes a grandparent. A few specialist lenders accept other relatives or close friends, but the criteria are stricter and the rates are often higher. The guarantor must have sufficient equity in an Australian residential property (usually at least 20% equity after the guarantee is in place) and meet the lender’s age and serviceability requirements. If your guarantor is over 65, some lenders cap the guarantee term or require evidence of retirement income to prove they can service their own loan if called upon.

No. The lender pursues you first — missed payment notices, default processes, hardship assessments. The guarantor is only called on if you default and the lender can’t recover the debt from your property (e.g. you’ve sold or the property value has fallen and there’s a shortfall). In a limited guarantee, the guarantor’s liability is capped at the guaranteed amount (typically 10-20% of your property value), not the full loan. It’s still serious — a default can lead to the lender forcing sale of the guarantor’s property to recover the shortfall — but it’s a last resort, not an automatic monthly backup.

Typically 4-8 weeks. You request a valuation (cost ~$200-$300), the lender reviews your repayment history and confirms the new LVR is below 80%, then issues a discharge of guarantee. The discharge is registered on the guarantor’s title, and their property is free. Some lenders process this as part of a refinance (faster, often 2-3 weeks), others require a standalone application. Andy coordinates the timing so you’re not paying for unnecessary delays or duplicate valuations.

Yes, but expect closer income scrutiny. Lenders want at least 1-2 years of ABN history and recent tax returns showing stable income. The guarantor’s position doesn’t change — they’re still guaranteeing the deposit shortfall — but your income verification takes longer. Andy works with lenders who accept self-employed borrowers on guarantor loans without inflated rates, and he structures the application so your income is presented clearly (using tax returns, BAS statements, and accountant letters) to avoid unnecessary declines.

The guarantee is discharged at settlement when you sell. Sale proceeds pay out the loan, and any surplus equity goes to you. If there’s a shortfall (property sold for less than the loan balance), the lender claims the shortfall from the guarantor up to the guarantee limit. In a rising market, this is rare — most Perth buyers who sell within 3-5 years have enough equity to cover the loan and walk away with a profit. Andy discusses worst-case scenarios before you commit, so the guarantor knows the exact exposure if you need to sell in a downturn.

Sometimes. If you can pay down the loan or top up from savings to bring the LVR below 80%, the guarantee can be released early. Alternatively, if you’re willing to pay LMI at that point (on the remaining shortfall), some lenders will discharge the guarantee and replace it with an LMI policy. This costs $3,000-$8,000 depending on your LVR, but it frees the guarantor immediately. Andy walks through the math: is it cheaper to wait 12 months for natural equity growth, or pay the LMI now and release the guarantee today?

No, but their property must be in Australia and meet the lender’s security criteria (residential, not commercial or rural). Most major lenders accept interstate guarantors, but they’ll need to travel to a WA solicitor or arrange interstate legal advice to satisfy the independent advice requirement. A few lenders restrict guarantor properties to the same state as your purchase; Andy checks each lender’s policy upfront so you’re not surprised mid-application.

They can, but they’ll need the new lender’s consent or they must arrange for the guarantee to be released first. If your LVR is still above 80%, releasing the guarantee early means either paying down your loan, accepting LMI, or finding a new guarantor. In practice, most guarantors wait until your loan reaches 80% LVR before refinancing — it’s usually only 2-3 years. If they need to sell urgently, Andy works with both lenders to structure a simultaneous discharge or transfer the guarantee to another property the guarantor owns.

Generally no. Most lenders restrict guarantor loans to owner-occupied purchases or in rare cases, your first investment property if you’re also living in it initially. The logic: a guarantor loan is a family-assistance product aimed at first home buyers, and lenders see owner-occupiers as lower risk. If you’re buying an investment property, you’ll need a standard low-deposit loan with LMI or a larger cash deposit. A handful of non-bank lenders offer guarantor loans for investment properties, but rates are higher and LVR limits are stricter (often max 90% instead of 95%).

The guarantor meets a solicitor (not the same one acting for you or the lender) who explains the guarantee deed line by line: what ‘limited guarantee’ means, the maximum liability, the conditions under which the lender can call on the guarantee, and the guarantor’s rights if you default. The solicitor confirms the guarantor understands the risks, isn’t being coerced, and has considered their own financial position. They issue a certificate of independent legal advice, which the lender requires before proceeding. This costs the guarantor $300-$600 and takes about 30-60 minutes. Andy provides the guarantor’s solicitor with a plain-language explainer of the loan structure beforehand so the meeting is efficient and the guarantor isn’t hit with jargon.

Andy Iriks, Credit Representative & Mortgage Broker

Reviewed by

Andy Iriks

Credit Representative & Mortgage Broker

The information on this page has been reviewed for accuracy by Andy Iriks, a Credit Representative & Mortgage Broker at Wanna Finance. It is general information only.

Talk to Andy about Structuring a Guarantor Loan That Works for Your Family

Talk to Andy about Structuring a Guarantor Loan That Works for Your Family

Andy’s been arranging guarantor loans since 2000 — he’ll map out the release timeline, explain the guarantor’s exposure in plain language, and make sure everyone’s protected before you sign. Call his mobile, send an enquiry, or book a session. You’ll get a straight answer, not a sales pitch.