Our verdict Yes, with their agreement
The short answer
Yes, with their genuine agreement. A partner, parent or other family member can offer their property as security for your business loan, usually by giving a mortgage and a guarantee. Lenders will want them to understand the risk — commonly through independent legal advice — and to be making their own free choice. Once that's in place, the loan is assessed much like any property-secured business loan.
Key points
- Third-party security means someone else's property secures your business loan.
- The property owner usually signs a mortgage and a guarantee, and takes on real risk.
- Independent legal advice for the owner is common, and some lenders require it.
- Their free, informed choice matters — no pressure, and a clear understanding of the downside.
How does using someone else’s property work?
It’s called third-party security. Your business borrows the money, but the property that secures the loan belongs to someone else — your partner, a parent, a sibling, a close friend.
In practice, the property owner usually:
- Gives the lender a mortgage over their property (first or second, depending on what’s already there).
- Signs a guarantee, promising to cover the business’s debt if it can’t.
- Receives independent legal advice, so a lawyer who isn’t acting for you or the lender explains the documents.
After that, the loan is assessed much like any property-secured business loan — $20,000 to $5,000,000 through first mortgages, second mortgages or caveat loans over residential or commercial property — on equity, purpose and a repayment plan.
Why do lenders take so much care?
Because the person taking the biggest risk isn’t the one running the business. If things go wrong, it’s their home or investment on the line.
Lenders want to be confident that the owner:
- understands exactly what they’re agreeing to;
- is choosing freely, not under pressure;
- knows they could lose the property if the loan isn’t repaid;
- has had the chance to get independent advice.
This isn’t red tape for its own sake. It protects the owner, and it protects the loan from being challenged later.
Family member willing to help? Tell us about the situation — no credit check to enquire, and a real person will talk it through.
What’s the conversation to have at home first?
Before you ask anyone to put their property on the line, talk openly about:
| Question | Why it matters |
|---|---|
| How much, and for what? | They should know exactly what the money funds |
| How will it be repaid? | From trading, a refinance, an asset sale? |
| What if the business struggles? | What’s the fallback before their property is at risk? |
| How long will their property be tied up? | Can it be released once the loan is paid down or refinanced? |
| What’s already owed on the property? | A second mortgage sits behind their existing home loan |
If the property already has a home loan, our page on homes that already have a mortgage explains how a second mortgage fits behind it.
When does third-party security make most sense?
- When your business is new or pre-revenue and needs security to borrow at all.
- When you don’t own property yourself — see no property.
- When your own credit history is bruised and security gives a lender comfort. Our past bankruptcy page shows how that can play out.
- When the amount needed is larger than unsecured lending would support.
An illustrative example
Illustrative only; not real people.
A young electrician wants to start his own business and needs $60,000 for a van, tools and stock. He rents, and his trading history is too short for unsecured lending. His parents own their home outright and offer to help.
- His parents meet a solicitor for independent advice, then agree to give a first mortgage over their home, with the guarantee limited to the loan amount.
- The loan is assessed on the equity and his plan to refinance once he has twelve months of trading, releasing his parents’ home.
- He sets aside part of each month’s income so the refinance can happen on time.
What if the relationship changes?
It’s uncomfortable to think about, but worth raising. If a couple separates, or family circumstances change, the mortgage and guarantee don’t disappear. Planning a clear exit — refinancing into the business’s own name when it can stand on its own — protects everyone.
Can the property be released later?
Often, yes — and it’s worth planning for from day one. Many third-party security arrangements are meant to be temporary: the family member helps the business get started or through a rough patch, and the security is released once the business can stand on its own.
Ways the property is commonly released:
- Refinance the business loan into the business’s own name once it has enough trading history or its own security.
- Pay the loan down to a level the lender is comfortable holding without the extra security.
- Substitute security — offer the business’s own property once it has some.
- Repay in full from a sale, contract payment or other funds.
Ask about release on the first call. Knowing there’s a realistic path to freeing up a parent’s or partner’s home makes the decision easier for everyone.
If the business is very new, our pages on three months trading and a brand-new ABN explain why third-party security is often the bridge. If the family property is held in a trust, see property in a trust.
It also helps to be clear about the numbers before anyone signs. Work out the monthly repayment, how long the loan runs and what the business would need to earn to cover it comfortably. When your partner or family member can see those figures in black and white, their decision is a properly informed one — and that’s good for your relationship as well as for the loan.
Talk to someone about it first
Asking a partner or family member to secure your loan is a big deal. Getting a straight answer about what’s possible before anyone commits is the right way to start.
There’s no credit check when you first enquire, and your family’s details aren’t circulated around a queue of lenders — one real person handles the conversation. Please be accurate on the form about who owns the property and what’s owed on it, so we can tell you properly what’s possible from the first call. Start your enquiry.
Frequently asked questions
What does my partner actually sign?
Typically a mortgage over their property in the lender's favour, and often a guarantee. Together, these mean that if the business can't repay, the lender can look to the property.
Does my partner need independent legal advice?
Many lenders require it for third-party security, and it's sensible either way. It confirms the owner understands what they're signing and is doing so freely.
Can my parents use their home to secure my business loan?
Yes, it can be done. Lenders take extra care where the security is a family home owned by someone who isn't in the business, including checking they understand the risk and have taken advice.
What if the property is jointly owned by me and my partner?
Then both owners will need to agree and sign, because the mortgage is over the whole property. Your partner may still be asked to take independent advice if they're not involved in the business.
Can the guarantee be limited?
Sometimes a guarantee can be limited to a set amount or to the value of the property. Whether that's possible depends on the lender and the loan — ask on the call.