Online products

Second mortgage business loans, applied for online

How a second mortgage business loan works in NZ, why it can suit when your bank mortgage stays put, what equity means and how the online process runs.

Updated 3 October 2026 · Business Loanz Online editorial team

See if you qualify →No credit check to enquire
City street lined with buildings and parked cars

Quick answer

A second mortgage business loan is secured on property that already has a first mortgage, usually with a bank. The new lender ranks behind the bank, so it lends against the remaining equity. New Zealand businesses use second mortgages to raise funds quickly without refinancing their main home loan. Applications can be started online, with a valuation and lawyer-led registration completing the process.

Key points

  • Secured behind an existing first mortgage, using remaining equity
  • Leaves your main bank mortgage untouched
  • Often used for short to medium-term business needs
  • Your first mortgage lender may need to be told or consent

Plenty of New Zealand business owners have significant equity in a home or investment property, held behind a bank mortgage they are perfectly happy with. Refinancing that bank loan to release equity can be slow, may involve break costs and might not be possible at all if the bank is cautious about the business. A second mortgage leaves the bank loan in place and uses the equity above it.

How does a second mortgage work?

Picture the property’s value as a bar. The first mortgage takes up part of it. The space above is your equity. A second mortgage lender lends against a portion of that equity and registers its own mortgage on the title, ranking behind the first.

Illustrative propertyAmount
Property value$1,100,000
First mortgage (bank)$520,000
Equity$580,000
Second mortgage borrowed$150,000
Equity remaining$430,000

The figures are illustrative only. Each lender decides how much of the combined value it will lend against.

Why choose a second mortgage instead of refinancing?

  • Your bank loan stays as it is. No need to renegotiate or break a fixed term.
  • Speed. A second mortgage can often be arranged faster than a full bank refinance.
  • Flexibility on the business. Second-mortgage lenders typically focus on the property and the exit plan, so recent trading bumps or an IRD balance may be considered.
  • A defined purpose and period. Many owners use it for a specific need and then repay it from cash flow, an asset sale or a later refinance.

What can a second mortgage fund?

Any business purpose: clearing tax arrears, buying stock or equipment, funding a contract, consolidating short-term debts, buying out a partner, or bridging until a sale completes. It cannot be used for personal or household spending.

If tax arrears are the trigger, see business loans to pay IRD debt.

What happens online, and what does not?

Online: the enquiry, uploads of your rates notice and first-mortgage statement, bank data, identity verification and e-signing of the loan offer. Not entirely online: the valuation (sometimes a site visit) and your lawyer’s role. Your lawyer will check your first mortgage terms, explain the documents, verify your identity and lodge the second mortgage electronically through Landonline. Read more about that on the online settlement page.

Ready to check your equity position? Start your enquiry and include the property’s approximate value and what is owed on it.

Does the first lender need to agree?

Often. Many bank mortgages require notice or consent before another mortgage is registered on the same title. Some contain clauses that make a second mortgage a breach if done without consent. Your lawyer reviews this early, so there are no surprises late in the process. Be ready for your bank to know about the second loan.

What should you watch for?

  1. Total cost in dollars. Second mortgages usually cost more per month than first mortgages. Get the total repayable for your expected term.
  2. Term and exit. Many are designed for short periods. Know exactly how you will repay it.
  3. Fees. Establishment, legal, valuation and discharge costs add up.
  4. Default terms. Understand what happens if a payment is missed.
  5. Your home. If the security is your family home, get independent advice.

Our page on comparing total cost shows how to line up offers fairly.

Worked example (illustrative): a Waikato dairy-support contractor owns a home worth around $900,000 with $400,000 owing to the bank on a fixed rate. He needs $120,000 to buy a used tractor and clear an IRD balance. Breaking the fixed rate would be costly, so he uses a second mortgage for twelve months, with the plan to repay from the season’s contract payments.

When is a second mortgage not the right choice?

When there is no clear exit; when the equity is thin; when the business cannot comfortably meet repayments; or when a cheaper option, such as a bank top-up, is realistically available. A good specialist will tell you if a second mortgage is the wrong tool, even if it is the one you asked about.

How is a second mortgage repaid?

Most second-mortgage business loans are repaid in one of three ways: regular repayments from business cash flow over the term; a lump sum from the sale of an asset or the completion of a contract; or a refinance into a bank facility once the business’s position has improved. The best plans are specific — “repay from the sale of the Hamilton rental in March”, or “refinance with the bank after two clean GST periods” — rather than “we will sort it out”. Lenders assess the exit carefully, and a clear one strengthens the application.

What happens to the second mortgage if you sell the property?

On sale, the first mortgage is repaid first, then the second, from the proceeds. Your lawyer arranges both discharges at settlement. If you plan to sell during the term, tell the lender early so the payout figures are ready.

Find out where your equity could take you

Start online in about 60 seconds. There is no credit check when you enquire, and your details go to one team — they are not hawked to a list of lenders. A real specialist reads your answers and calls. Include the property’s estimated value, the current mortgage balance and the purpose, and the conversation will be precise from the start. Check your second mortgage options.

Frequently asked questions

Do I need my bank's permission for a second mortgage?

Many first mortgages require the bank's consent or at least notice before another mortgage is registered. Your lawyer will check your existing mortgage terms.

How much equity do I need?

It depends on the property and the lender, but the combined borrowing across both mortgages must stay within a sensible proportion of the property's value.

Is a second mortgage more expensive than a first?

Usually, because the second lender takes more risk. It is often used for a shorter period, then repaid or refinanced.

What is the minimum amount?

Property-secured business lending starts from $20,000.

Can I use a second mortgage on a rental property?

Yes, investment properties can be used as security for a business-purpose loan, subject to the lender's assessment.

Ready when you are. Start online.

The enquiry takes about a minute on any device. Nothing touches your credit file at this stage, your details stay with one team, and a person — not a bot — calls you back.

No credit check to enquire

Not sprayed to a list

A human behind the screen