Comparison · 22 July 2026
Should you use a mortgage adviser or walk into your own bank? A neutral look at how each option works, what it costs, and which situations suit which path.
The short answer: neither is automatically better, and it depends on your situation. A mortgage broker compares loan options across multiple lenders and manages the application, usually at no cost to you. Going direct to your bank can be simpler if your finances are straightforward and you value an existing relationship, but a bank can only offer its own products. Around 60% of New Zealand home loans are now arranged through an adviser rather than a bank branch, and that share has been rising (Source: interest.co.nz). Below is a neutral comparison to help you decide.
In this article
A mortgage adviser (broker) is an intermediary who works with a panel of lenders on your behalf. A bank lends its own money and offers its own products. Here is how the two compare on the things that usually matter to borrowers:
| Mortgage broker | Direct to your bank | |
|---|---|---|
| Choice of lenders | Compares across a panel of banks and non-bank lenders | That one bank's products only |
| Cost to you | Usually none; lender pays the adviser on settlement | None for the branch service |
| Who does the legwork | Adviser prepares and submits the application for you | You deal with the bank directly |
| Existing relationship | New relationship with the adviser | Bank already holds your history |
| If declined | Adviser can approach other lenders | You restart at another bank yourself |
| Regulated advice | Financial Advisers under a licensed Financial Advice Provider | Bank staff selling that bank's products |
The single biggest structural difference is choice. A bank compares its own products for you; a broker compares the market for you. That does not make one path right for everyone, as the rest of this article explains.
This is the question most people want answered, and it is a fair one. For most residential home loans in New Zealand, a mortgage adviser is paid a commission by the lender once your loan settles. It is not a fee added to your loan, and it does not increase your interest rate. That is why the service is generally free to you as the borrower.
Because the adviser is paid by whichever lender you go with, good advice depends on transparency. Financial Advisers work under a licensed Financial Advice Provider and must disclose how they are paid and manage any conflicts of interest, and if any fee could ever apply in a particular situation, they must tell you up front before you commit to anything. If you want the detail of how Trebla is paid and how we manage conflicts, it is set out in our disclosure statement.
Going direct is a perfectly reasonable choice for plenty of people. It tends to suit you when:
If that describes you, walking into your own bank can be quick and easy. The trade-off is that you are seeing one lender's answer, not the market's, so it is worth knowing what else is out there before you sign.
A mortgage adviser tends to add the most value when there is something to compare or coordinate:
Neither is automatically better; they suit different situations. A broker compares options across multiple lenders and manages the application, usually at no cost to you. Going direct can be simpler if your situation is straightforward and you value an existing relationship. The right choice depends on how complex your situation is and how much you value comparing across the market.
For most residential home loans in NZ there is no cost to you for using a broker. The adviser is generally paid a commission by the lender once your loan settles, not a fee charged to you, and that does not change your interest rate. If any fee could ever apply, a Financial Adviser must disclose it to you up front.
Not necessarily. A bank can only offer its own products, so going direct means comparing one lender rather than the market. A broker can compare advertised and negotiated pricing across multiple lenders. Rates change constantly and differ by lender and situation, so the value of comparing is less about any single headline number and more about the loan and structure fitting you.
Around 60% of home loans in New Zealand are now arranged through a mortgage adviser rather than directly with a bank, and that share has been growing. Major banks report a large and rising proportion of their new lending coming through advisers (Source: interest.co.nz).
The bottom line: the right choice depends on your situation. If your finances are simple and you like your bank, going direct is fine. If there is anything to compare, coordinate, or structure, an adviser can do that legwork across the market for you, usually at no cost. Trebla Partners Limited (FSP728251) is a licensed Financial Advice Provider, and our Financial Advisers are happy to talk through which path fits you, with no obligation to proceed. You can book a free chat at book.trebla.nz/book.
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This article is general in nature and is not financial advice. Lending criteria, lender policies, and relevant rules vary and change regularly. Always seek advice specific to your situation before making decisions. Read our disclosure statement →
