Buying guide

Working with a mortgage broker in New Zealand

Learn how a mortgage broker can help you through the homeownership process.

Karina Reardon
Last updated: 4 August 2025 | 3 min read

Why use a mortgage broker?

Mortgages can be complicated - especially for first-home buyers in New Zealand. That’s why more than half of borrowers now use a mortgage adviser to navigate the home loan process.

Brokers are usually free to the borrower (they’re paid by the lender) and can help with decisions like:

 

What to expect from a mortgage adviser

A mortgage broker in NZ acts as a go-between, dealing with banks and other lenders on your behalf. According to Cotality, around 60% of mortgages in New Zealand are arranged by brokers.

  • They usually earn a commission from the lender (a percentage of the loan amount).
  • Some may also charge you a fee, so always ask upfront.
  • A good adviser will present you with multiple loan options and explain why they recommend a particular one.
  • Tip: It’s often best to choose a broker recommended by someone you trust (a friend, family member, or real estate agent).

 

Questions to ask a mortgage broker

The Financial Markets Authority (FMA) suggests asking these questions at the outset:

  • Do you offer loans from a range of lenders?
  • How do you get paid, and does it differ between lenders?
  • Why are you recommending this loan to me?
  • Can you show me a couple more options, including the cheapest?

 

 

Pre-approval with a mortgage broker

One of the key ways a mortgage adviser helps is by securing home loan pre-approval. They’ll review your bank accounts, spending, savings, debts, and assets, then provide the information a lender needs.

Not all banks in New Zealand work with mortgage brokers, so it’s worth checking who your adviser partners with.

Pre-approval (sometimes called a Letter of Offer of Finance) sets the maximum amount a lender is willing to lend you. Conditions usually apply, such as:

  • A registered valuation of the property
  • A signed sale and purchase agreement the lender approves

 

Jarrod Kirkland, Mortgage Lab General Manager

Mortgage Q&A with Jarrod Kirkland, Mortgage Lab General Manager

Do you pay a mortgage adviser when they help you with a home loan?

Jarrod: Mortgage advisers are paid by the lenders for their services, so in most cases we won’t charge a fee. In certain circumstances, where commission is not payable, we may charge a fee but this is disclosed as early as possible. We’re obligated to always do the best for the client, deal with a number of lenders who pay us, which I believe takes away any bias. If a client goes directly to a bank, their bank isn’t in a position to offer an opinion on the other lenders in the market.

What should you bring to your first meeting with a mortgage adviser if you’re using one?

Jarrod: No paperwork, but you should have a good handle on your personal finances including a budget. Payslips would help if you don’t have a clear idea of how much you earn. The first meeting though is a “getting to know you and what’s important meeting.”

What happens next after you have pre-approval?

Jarrod: When you’re pre-approved and you come across a potential house you want to put an offer on, it’s good practice to email the property listing to your mortgage adviser to check for suitability. Your pre-approval is general and may rule out certain properties like plaster homes, rural properties or new builds. A good adviser will be able to provide property-specific feedback once they’re viewed the listing.

You’ve found the house you want to put an offer in on, what happens next?

Jarrod: Now it’s time to engage a lawyer to help you draw up your offer. Most good advisers will be aware of the conditions to include but it’s vital a lawyer helps at this stage as the contract is legal in nature.

How do people typically structure their mortgage?

Jarrod: Most people, without guidance, will fix their mortgage for one term and will often do so based on the cheapest rate at the time without any thought as to what may happen at the end of the fixed term. I’ve always split mortgages over several terms to spread the interest rate risk with a floating component (offset or revolving credit). This allows the client to make lump sum payments without paying a penalty and to offset interest with funds that may be sitting idle in their transactional and savings accounts.

How much will the loan cost if you pay it over a 30 year period?

Jarrod: This depends on how much you’re borrowing and the interest rates being used but, as an example, a $500,000 mortgage at 6.5% over 30 years will cost you $1,137,186. The same mortgage over 20 years will cost you $894,054.

Will mortgage rates always go up following an Official Cash Rate (OCR) rise?

Jarrod: Mortgage rates don’t always go up with an OCR rise. Banks are regularly forecasting what the OCR is going to do so you might find that in some instances, the OCR rise has already been factored into the rates. And, sometimes, the banks won’t pass on the full cost of the OCR rise either as we’ve experienced this year.

If you want to pay your mortgage off faster, what kind of loan can you get?

Jarrod: If you want to pay your mortgage off more quickly there are products around to help you minimise the interest paid. These include offset mortgages or revolving credit mortgages. Any spare cash you have lying around in your other bank accounts is offset against the mortgage to minimise interest. These products are better for those with high disposable incomes, though savings can be made for those with smaller disposable incomes.

To pay your mortgage off faster, put simply, you need to increase your repayments. A personal budget is your best friend here, something your mortgage adviser should be able to help with.

Author

Karina Reardon
Karina Reardon