The short version
- A guarantor, usually a parent, backs your loan with their own home.
- It can let you buy with a small deposit or none, often without lenders mortgage insurance.
- Your guarantor could have to pay if you can't.
How a guarantor home loan works
A guarantor, usually a parent, uses the equity in their own home as extra security for your loan. With a guarantee, many lenders let you borrow up to the full price of the home, or more, without paying lenders mortgage insurance.
Most guarantees are limited to part of the loan, such as the amount above 80% of the property's value. Once you've paid the loan down, or the home has grown in value, you can usually ask the lender to release the guarantor.
The risk for your guarantor
If you can't repay and the sale of your home doesn't cover the debt, the lender can ask the guarantor to pay the difference, and in the worst case sell their property. Lenders usually ask guarantors to get independent legal advice first.
Pros
- Buy sooner, without saving a 20% deposit.
- Often no lenders mortgage insurance.
- The guarantee can usually be released once you've paid the loan down.
Cons
- Puts your guarantor's home at risk.
- You still need to show you can afford the repayments.
- Can strain family relationships if things go wrong.
Alternatives
- The government's 5% Deposit Scheme, for first home buyers.
- Saving a larger deposit, or a gift from family instead of a guarantee.
- A low deposit loan with lenders mortgage insurance.
How to apply
Most people get pre-approval for a guarantor home loan before they make offers, then full approval once they've found a home.
- Get your documents together: payslips, bank statements showing your savings, and details of your debts and credit card limits.
- Get pre-approval. It tells you how much you can borrow and usually lasts three to six months.
- Find the home and sign the contract. The lender values the property before it gives full approval.
- Your guarantor will need their own documents, and usually independent legal advice.
What to compare
- Who can be a guarantor. Most lenders accept parents, and some accept other close family.
- How much of the loan the guarantee covers, and how it's released.
- The comparison rate and fees, as with any home loan.










