ChatGPT · National
We're buying our first home and have about a 10% deposit. Neither of us knows much about mortgages. Should we start with our bank or talk to a mortgage adviser?
For a first home in New Zealand, with a 10% deposit and little mortgage experience, I'd speak to a mortgage adviser and your bank, rather than choosing one or the other. If you only want to take one step first, I'd lean towards an independent mortgage adviser who works with several lenders.
The reason is simple: with a 10% deposit, getting a home loan approved can be more complicated than it is for someone with a 20% deposit. You want to understand which lenders might accept your situation, what the loan will cost, and how much you can comfortably borrow before you start making offers.
Mortgage adviser vs your bank
Mortgage adviser
My preferred starting point
- Can compare options across multiple lenders.
- Can explain which banks may consider a 10% deposit.
- Can help prepare your application and handle lender discussions.
- May be paid a commission by the lender, so ask how they're paid and which lenders they work with.
Best for understanding your options before committing to a particular bank.
Your bank
- Knows your existing banking history and may offer a competitive deal.
- Can tell you what it would lend you and what conditions would apply.
- Only assesses its own lending options, so you won't see the whole market.
Best for getting a useful comparison and checking whether your existing bank can offer you a good deal.
You don't have to choose one exclusively. You can speak to an adviser and ask your bank for a quote, then compare the actual offers.
Why your 10% deposit matters
A 10% deposit doesn't rule out buying a home, but it does mean you should get advice early.
- You may face stricter lending criteria. Banks have limits on how much low-deposit lending they can offer, and each bank assesses applications individually. Understanding loan-to-value restrictions - Reserve Bank of New Zealand
- Your interest rate or fees may be higher. Some lenders charge a low-equity premium or margin when you have less than 20% equity. Understanding loan-to-value restrictions - Reserve Bank of New Zealand
- You may qualify for a First Home Loan. Eligible buyers can apply through participating lenders with a deposit as low as 5%, subject to the scheme's criteria and the lender's approval. It's worth asking an adviser whether this suits you. First Home Loan :: Kāinga Ora
What I'd do in your position
- Book a first meeting with a mortgage adviser. Look for someone who works with multiple lenders and regularly helps first-home buyers with low deposits. Ask whether their service is free to you and how they're paid.
- Get a conditional pre-approval. This helps you understand your potential borrowing limit before you start seriously house hunting. It isn't a guarantee of final approval. Thinking about your finances when buying2. Preparing and applying :: Kāinga Ora
- Ask your bank for a competing offer. Compare the interest rate, fees, any low-equity charges, cash contribution, and fixed-rate terms—not just the advertised rate.
- Keep money aside for buying costs. Budget for a lawyer, building inspection, valuation if required, insurance, and moving costs rather than putting every dollar into the deposit. How to save for a deposit and other costs when buying a home » Sorted
A useful place to start is Sorted's guide to finding financial advice. You can also check an adviser's credentials through New Zealand's Financial Service Providers Register.
Let me help you work out your next step
I can give you a much more practical steer if I know one thing first:
Roughly what is your combined annual income before tax?
A ballpark figure is fine. With that, and your 10% deposit, we can start thinking about what price range might be realistic and what questions you should ask an adviser.
ChatGPT can make mistakes. Check important info.
Captured 11 October 2026