Last updated: July 2026 · Reviewed by John Pierre Saliba, Director and Mortgage Broker, MFAA Accredited
What Is a Guarantor Home Loan?
Lend & Loan is a specialist guarantor loan broker in Sydney with 80 five-star reviews. We help first home buyers use a parent's property equity to buy with a smaller deposit and avoid LMI, comparing 50+ lenders for the best structure.
A guarantor home loan, also called a family guarantee loan or family pledge loan, allows a family member (typically a parent) to use the equity in their own property as additional security for your home loan. This means you can borrow a higher amount relative to your deposit, avoid paying Lenders Mortgage Insurance (LMI), and in some cases purchase with as little as 2-5% deposit.
The guarantor does not gift you money or go on the title of your property. They simply offer their property as extra security to the lender, reducing the lender's risk enough to approve your loan without LMI. Once you've built enough equity (typically when your LVR drops to 80%), the guarantee is released and the guarantor's property is no longer at risk.
The most important thing I do with guarantor loans is make sure both the borrower and the guarantor fully understand the arrangement before we apply. The guarantor is taking on real risk, if the borrower defaults, the guarantor's property can be called upon. That conversation needs to happen clearly and early. Done right, it's one of the most powerful tools for getting a first home buyer into the market without a decade of saving.
How a Guarantor Loan Works, Step by Step
- Step 1, Assess guarantor equity: We calculate how much usable equity the guarantor has in their property. Most lenders will accept equity up to 80% of the guarantor property's value as security.
- Step 2, Structure the guarantee: The guarantee is typically limited, meaning the guarantor's exposure is capped at the difference between your deposit and 20% of the purchase price, not your entire loan.
- Step 3, Both parties apply: The lender assesses the borrower's income and serviceability independently. The guarantor must also meet the lender's criteria and receive independent legal advice before signing.
- Step 4, Settlement: Your loan settles with two securities, your property and the guarantor's property. You own your home outright; the guarantor is not on the title.
- Step 5, Release the guarantee: Once your LVR drops below 80% (through repayments or property value growth), we apply to release the guarantee. The guarantor's property is then free of any obligation.
Worked Example: Buying in Sydney with a Guarantor
Here's how the numbers work for a typical first home buyer using a family guarantee in 2026:
- Purchase price: $900,000
- Your deposit: $45,000 (5%)
- 20% of purchase price: $180,000
- Shortfall covered by guarantee: $135,000 (secured against parent's property)
- Your loan amount: $855,000 (95% LVR)
- LMI payable: $0, eliminated by the guarantee
- LMI you would have paid without guarantor: ~$28,000–$32,000
- Guarantee released when: Your loan balance drops below $720,000 (80% of $900K), typically 3–7 years depending on repayments and growth
In this example, the guarantee saves the borrower over $30,000 in LMI upfront, money that stays in their pocket or goes directly off their loan balance.
Who Can Be a Guarantor?
Most lenders restrict guarantors to immediate family members. Accepted guarantors typically include:
- Parents (most common)
- Stepparents
- Siblings (some lenders)
- Grandparents (some lenders, subject to age)
- De facto partners of parents (some lenders)
Friends, employers and non-family members are generally not accepted as guarantors by mainstream lenders. The guarantor must own property in Australia with sufficient equity, have a clean credit history, and be able to demonstrate they understand the obligation they're taking on, which is why independent legal advice is mandatory.
Limited Guarantee vs Unlimited Guarantee
Always use a limited guarantee. An unlimited guarantee means the guarantor is potentially liable for your entire loan, an unacceptable risk for most families. A limited guarantee caps the guarantor's exposure to a specific dollar amount, typically just the shortfall between your deposit and 20% of the purchase price.
We only work with lenders who offer limited guarantees, and we structure the guarantee amount carefully to minimise the guarantor's exposure while still achieving the outcome you need.
Risks and How to Manage Them
A guarantor arrangement carries real risk for the guarantor. Here's how we manage it:
- Independent legal advice: Mandatory, every guarantor must see a solicitor before signing. This protects both parties and is required by all lenders.
- Income protection for the borrower: If the borrower loses their income, the loan can fall behind. Income protection insurance is strongly recommended.
- Clear release timeline: We model when the guarantee is likely to be released based on repayments and property growth, so the guarantor knows the expected timeframe upfront.
- Regular reviews: We check in annually to assess whether the guarantee can be released early, saving the guarantor from carrying the obligation longer than necessary.
Guarantor Loans vs Other Low-Deposit Options
- vs First Home Guarantee (5% deposit, no LMI): Government scheme, income-capped, property price-capped ($900K in Sydney). Guarantor loans have no income or price cap.
- vs Paying LMI: On a $900K purchase at 95% LVR, LMI costs $28,000–$32,000. A guarantor eliminates this entirely.
- vs Saving a larger deposit: In Sydney's market, property prices can rise faster than you can save. A guarantor can get you in now rather than in 3–5 years.
- vs Gifted deposit: A gift reduces your loan size but doesn't eliminate LMI on its own. A guarantor structure achieves both with a smaller cash contribution.
