Family Guarantee Loans in South West Sydney: The 2026 Guide

In 2026, family guarantee loans are giving South West Sydney buyers a genuine pathway to homeownership without the traditional 20% deposit barrier. If your parents own their home outright or have substantial equity, they can guarantee part of your loan - letting you buy with as little as 5% deposit and no lenders mortgage insurance (LMI).

Whether you're looking in Moorebank - Revesby or Padstow across South West Sydney, a family guarantee can bridge the gap between your current deposit and what you need to buy. The structure protects both generations while giving you access to the property market years earlier than saving alone would allow.

Infinity Mortgage Brokers helps families across Bankstown and South West Sydney structure family guarantee loans that work for everyone involved, completely free of charge.

Here's what you need to know about how family guarantees work, what lenders look for, and how to structure one that protects your family's interests.

How does a family guarantee loan work?

A family guarantee loan lets your parents use their home's equity as security for part of your loan, removing the need for you to save a full 20% deposit or pay LMI. Your parents guarantee the portion you can't cover - typically 15-20% of the purchase price - while you're responsible for the main loan and all repayments. The guarantee only kicks in if you default, which means your parents' property is at risk only in that scenario, not for day-to-day repayments.

What government schemes work with family guarantees?

• First Home Guarantee: can be combined with family guarantee for maximum benefit - 5% your deposit, 15% government guarantee, 5% family guarantee, giving you 100% finance with no LMI.
• First Home Owner Grant :$10,000 for new builds under $600,000 - though this price cap makes it largely inapplicable for established homes in South West Sydney where house medians exceed $1,000,000.
• Stamp duty concessions: full exemption for purchases up to $800,000 - relevant for units in Bankstown ($580,000 median) and Liverpool ($520,000 median) but not for houses across the region.

• Infinity Mortgage Brokers Like to know how a family guarantee would work for your situation? Family guarantee structures vary significantly based on your deposit, your parents' equity, and which lender you choose. A free chat with a South West Sydney mortgage broker gives you a clear picture - no commitment, no pressure. 100+ reviews 40+ lenders No obligation Book a free chat today →

How do mortgage brokers help families structure guarantee loans in South West Sydney?

Not every lender offers family guarantee products, and the ones that do have different rules about guarantee amounts, exit strategies, and borrower requirements. We compare your options across our 40+ lender panel to find the structure that works best for your family's situation.

Step 1: Talk to us

Get in touch and we'll assess your deposit, your parents' equity position, and which family guarantee structures are available across our lender panel.

Step 2: Review your parents' position

We work out how much equity your parents have available and what guarantee amount gives you the best borrowing outcome without overcommitting their security.

Step 3: Compare lender policies

We identify which lenders offer the most flexible guarantee terms, the clearest exit strategies, and the strongest rates for your combined profile.

Step 4: Structure the guarantee

We coordinate the loan structure so both properties are properly secured, all parties understand their obligations, and the legal documentation protects everyone involved.

Step 5: Arrange independent legal advice

We ensure your parents receive independent legal advice as required by law, and coordinate with their solicitor to make the guarantee process as smooth as possible.

Step 6: Plan the exit strategy

We build in a clear path for removing the guarantee once you've gained enough equity, typically through property value growth or loan payments over 2-5 years.

What mistakes do families make with guarantee loans?

The biggest mistake families make is not planning the exit strategy upfront. Your parents don't want to be guarantors forever, and you don't want them tied to your loan indefinitely. The best guarantee structures include a clear timeline and trigger points for removing the guarantee - usually when your property value growth plus loan repayments gets you to 80% loan-to-value ratio.

The second mistake is not getting independent legal advice. Lenders require your parents to receive independent legal advice before signing a guarantee, but some families treat this as a formality rather than a genuine protection. Your parents need to understand exactly what they're signing and what happens in different scenarios.

How do family guarantees affect borrowing capacity?

Your borrowing capacity is based on your income alone - your parents' income doesn't count toward serviceability, and their existing debts don't reduce what you can borrow. The guarantee only affects the security side of the equation by reducing your required deposit and eliminating LMI.

This is different from joint borrowing, where everyone's income and debts are combined. With a family guarantee, you're the sole borrower responsible for all repayments, while your parents provide additional security without taking on the debt.

• Infinity Mortgage Brokers Ready to find out if a family guarantee is right for your situation? We compare loans from 40+ lenders across Bankstown and South West Sydney. Free service, no cost to you. 100+ reviews 40+ lenders No obligation Book a free chat today →

Frequently Asked Questions

Do my parents need to earn income to be guarantors?

No - your parents don't need ongoing income to provide a guarantee. The guarantee is based on their property equity, not their ability to service the loan, which is assessed entirely on your income.

How much can my parents guarantee?

Typically up to 20% of your purchase price, though this depends on how much equity they have available and the lender's maximum guarantee policies. Most lenders want your parents to retain at least 20% equity in their own home after providing the guarantee.

Can I combine a family guarantee with the First Home Guarantee?

Yes - you can use 5% your own deposit, 15% government guarantee, and 5% family guarantee to achieve 100% finance with no LMI. This is one of the strongest combinations available for first home buyers in 2026.

What happens if property values fall?

Your parents remain liable for the guaranteed amount even if your property value drops below the loan balance. This is why the exit strategy and conservative guarantee amounts are important - we structure guarantees to minimise this risk.

How long does the guarantee last?

Until you formally remove it, which typically happens when your loan-to-value ratio reaches 80% through property value growth and loan repayments. Most guarantees are removed within 2-5 years if property values perform reasonably.

Should I use a mortgage broker or go directly to my bank for a family guarantee?

A mortgage broker, every time. Family guarantee policies vary significantly between lenders - some offer more flexible guarantee amounts, others have better exit terms, and rates can differ meaningfully. We compare all options to find the best structure for your family.

What documents do my parents need to provide?

Property valuation of their home, proof of their existing mortgage balance (if any), and evidence of their identity. They'll also need to receive independent legal advice before signing the guarantee documents.

Your Next Steps

Getting a family guarantee structure right protects both generations and sets you up for a smooth exit strategy down the track. The difference between lenders can affect your guarantee amount, your exit timeline, and your overall borrowing outcome - which is exactly what a broker comparison is designed to find for you.

Ready to find out which lenders offer the best family guarantee terms for your situation? Contact Dimitri Giannopoulos for a free consultation or call 0426 955 190. We'll assess your family's position across our 40+ lender panel and find the most suitable guarantee structure for you.

Infinity Mortgage Brokers · 25 Restwell St, Bankstown NSW 2200 · ABN 15 612 794 457 · Infinity Mortgage Brokers is an Authorised Credit Representative (488432) of Connective Credit Services Pty Ltd (Australian Credit Licence 389328) · General information only — this article does not constitute financial advice. Please consider your own circumstances and seek professional advice before making any financial decisions.