Guarantor Home Loans Australia 2026

Compare guarantor home loan options — free, no credit score impact.

LMI is charged when the LVR exceeds 80%. On a $700,000 purchase with a 5% deposit ($35,000), LMI can cost $15,000–$25,000. A guarantor can eliminate this entirely.

Some first home buyers simply cannot reach a 20% deposit in a rising market without help. A guarantor bridges that gap without requiring the parent to gift or lend money directly.

Security guarantee (most common)

The guarantor offers their property as additional collateral. The lender registers a mortgage over the guarantor's property (up to the guaranteed amount). If the borrower defaults, the lender can pursue that property to recover the shortfall. Standard structure for family guarantor loans in Australia — requires equity, not high income.

Income guarantee (less common)

Some lenders allow a guarantor to contribute income to help meet serviceability where the borrower's income alone doesn't support the loan size. Less common, assessed differently by each lender. If serviceability is the primary issue, the borrower may need to reassess their purchase price.

Liability extends to the entire loan, including future interest, fees and costs. If the borrower defaults on a $700,000 loan, the lender can pursue the guarantor for the full $700,000 plus costs. Rarely used for family home loans today, but still appears in some commercial arrangements.

Liability is capped at a specific dollar amount — typically just enough to bring the borrower's LVR to 80%. In the worked example, the cap is $100,000. The lender can only pursue up to that amount, even if total losses exceed it.

If a lender requires an unlimited guarantee, ask why and compare other lenders. Most mainstream Australian lenders offer limited guarantee structures for family home loan purposes.

Immediate family — parents (most common), siblings and occasionally grandparents. Some lenders accept step-parents or de facto partners. Friends and extended family are rarely accepted.

Property ownership

Must own real property in Australia with sufficient equity. Most lenders assess usable equity as property value minus existing mortgage, and require LVR on the guarantor's property (after the guarantee) of 80% or below.

Age

Some lenders apply age restrictions, particularly if the guarantee extends close to or past typical retirement age. A 70-year-old guarantor for a 30-year loan may face additional scrutiny.

Credit standing & financial position

The guarantor's own credit history is assessed. A guarantor with bad credit, an existing default, or who is in a debt agreement, financial hardship, or bankruptcy will not be accepted.

• Demand the guaranteed amount from the guarantor
• If the guarantor cannot pay in cash, seek a court order to sell their property
• Register a default against the guarantor's credit file

In practice

A parent providing a $100,000 limited guarantee must understand that if things go wrong, they could lose $100,000 of equity in their own home — up to and including a forced sale in extreme circumstances.

Every guarantor — without exception — should obtain independent legal advice before signing. Not advice from the borrower's solicitor. Not a phone call with the lender. An independent solicitor who reviews the documents on the guarantor's behalf and explains the obligations in plain language. Many lenders require it; even where they don't, it should happen. The relationship cost of a family home loan that goes wrong is potentially permanent.

Loan repayments

Over time, the principal reduces and the LVR drops, bringing release closer.

Property value growth

If the property increases in value, the LVR improves without any extra repayments.

Both — the typical path

In moderate-growth markets with regular P&I repayments, a 5% deposit borrower might reach 80% LVR in 4–7 years.

There is no automatic release — the borrower must initiate the process. Apply to the lender, the lender orders a valuation, and if your LVR is at or below 80% (without the guarantor's security) the guarantee is released and the mortgage on the guarantor's property is discharged. Some borrowers carry guarantor-supported loans for longer than necessary simply because they haven't asked.

First Home Guarantee (government scheme)

From 1 October 2025, all eligible first home buyers can purchase with a 5% deposit and no LMI — no guarantor required. The government provides the guarantee to the lender. Income and property price caps apply. See the first home buyer loans page →

Help to Buy Scheme

The government co-purchases up to 40% of a new home or 30% of an existing home alongside you, reducing borrowing requirements significantly. Strict eligibility criteria apply.

Save longer

Straightforward but often underestimated. An extra 12–18 months of saving — particularly for dual-income couples — can close the deposit gap without putting a parent's property at risk.

Family loan with parent as co-borrower

Some families name a parent as co-borrower rather than guarantor. This creates full joint liability but also gives the parent a legal ownership interest. A different structure with different consequences — seek advice.

See what a guarantor loan could mean for you in numbers — including how much LMI you would avoid at 80% LVR.

Credit information

LoanGorilla is a credit assistance provider. Information on this page is general in nature and does not constitute financial or credit advice. Consider whether any home loan product is appropriate for your circumstances. We recommend seeking independent financial and legal advice before making borrowing decisions.

Comparison rate warning

Comparison rates are based on a secured loan of $150,000 over 25 years. WARNING: This comparison rate is true only for the example given and may not include all fees and charges. Different loan amounts, loan terms or fees may result in a different comparison rate. Rates are subject to change without notice.

FAQs — Guarantor Home Loans