If you’re thinking about using property to secure a business loan, you’ll hear two terms a lot: first mortgage and second mortgage. They sound technical, but the idea is simple — it’s about who gets repaid first if the property ever has to be sold.
What is a first mortgage?
A first mortgage is the loan that ranks first against a property. If the property is sold — voluntarily or otherwise — the first mortgage lender is repaid before anyone else from the sale proceeds.
Most home loans are first mortgages. If your home is freehold (nothing owing), a business loan secured on it would normally be a first mortgage.
What is a second mortgage?
A second mortgage sits behind an existing first mortgage. If the property is sold, the second lender is repaid only after the first lender has been paid in full.
For a business owner, a second mortgage is often the practical way to unlock equity without touching your existing home loan. You keep your current bank mortgage — its rate, term and relationship — and add a separate business loan that ranks behind it.
How do they compare?
| First mortgage | Second mortgage | |
|---|---|---|
| Ranking | First in line on sale | Behind the first mortgage |
| Typical situation | Property is freehold, or you’re replacing the existing lender | Existing home loan stays in place |
| Existing lender involvement | Replaced or not relevant | May need to be notified or consent, depending on your mortgage |
| Risk for the lender | Lower | Higher, because they’re second in line |
| Speed | Can involve refinancing the whole debt | Often quicker — no need to move your home loan |
| Common use | Larger restructures, freehold property | Business funding while keeping the home loan |
Why would I choose a second mortgage?
A few common reasons:
- You’re happy with your home loan. Breaking a fixed-rate home loan can be costly, and a second mortgage avoids that.
- Speed. You don’t need to refinance your whole home loan to access business funding.
- Flexibility. A short to medium term business loan can be repaid or refinanced separately, without affecting your home loan.
- Your bank said no. Your home loan lender may not want to fund the business need — a second mortgage lets another lender do it.
Why would I choose a first mortgage?
- The property is freehold — there’s nothing ahead of the new loan.
- You’re consolidating everything — refinancing the existing mortgage and business debts together.
- You want one lender and one repayment across the property.
How much equity do I have?
Start with a rough calculation:
- Estimate the property’s value. A lender will usually rely on a registered valuation.
- Subtract everything owing against it — the first mortgage balance and anything else registered.
- The difference is your equity.
A lender won’t lend against all of it. They’ll decide how much they’re comfortable with based on the property type, location, condition and your circumstances. Residential property in main centres tends to be viewed differently from, say, bare rural land.
Equity is a buffer, not a bank balance. The more you borrow against it, the less cushion you have if property values or plans change.
Do I need my first lender’s consent?
Sometimes. Some home loan documents require your bank’s consent to — or at least notice of — any further mortgage on the property. Others don’t. Your lawyer can check your existing mortgage terms, and the second mortgage lender will know how to handle the process.
Either way, it’s a formality to plan for rather than a reason to worry.
What can a property-secured business loan be used for?
Any genuine business purpose: paying an IRD bill, buying a business, buying equipment, funding a contract, refinancing expensive debt or covering cash flow. With the lenders on our panel, you can borrow from $20,000 up to $1m secured on New Zealand property — home, rental, commercial or land — as a first or second mortgage, even if there’s already a mortgage on it.
No financials or tax returns are needed for the initial assessment, and bad credit, defaults and arrears are considered case by case.
Can someone else’s property be used?
Yes. A supporting party — a family member or a trust — can provide their property as security. It’s a big ask, and they should get independent legal advice and understand the risk fully. Our guide on talking to your partner or family about home equity helps with that conversation.
What’s the exit plan for a second mortgage?
Because second mortgages are usually short to medium term, plan how you’ll repay it:
- from business cash flow over the term;
- by selling an asset;
- by refinancing into your main home loan or a longer-term business facility once your financials support it.
Our exit planning guide walks through each.
Where LendFriend fits
Tell us about the property, what’s owing and what you need. We’ll look at your situation, explain whether a first or second mortgage suits it, and match you with a lender from our panel. Every loan is priced on your individual circumstances.
And if you do need funding…
That's where we come in. Tell us what's going on and we'll match you with a lender from our panel that fits — and tell you honestly if borrowing isn't the right move.
Quick questions
Do I need my bank's permission for a second mortgage?
It depends on your existing mortgage terms. Some first mortgage documents require the lender's consent to, or notice of, a second mortgage. Your lawyer can check, and the second lender will usually handle the process.
How is equity calculated?
Roughly, it's the property's current value minus everything owing against it. Lenders then decide how much of that equity they're comfortable lending against, based on the property type, location and your situation.