
Choosing between a bank and a non bank lender can feel confusing. Banks usually have sharper rates if you fit their rules; whilst alternative lenders can help when real life doesn’t line up perfectly. This guide explains when each option makes sense in NZ and how to switch between them without drama.
If you want the benefits only, see 4 Advantages of Non Bank Lenders in NZ.
For a balanced list of trade-offs, read Pros and Cons of Non Bank Lenders.
This page is a head-to-head comparison so you can decide which path fits you today.
Banks are mainstream institutions (everyday accounts, cards, investments, mortgages) with tighter criteria and generally lower pricing. They’re ideal when you tick most boxes: steady PAYE income, clean credit, sensible debts, standard property, and enough deposit.
Specialist lenders are specialist finance companies (no deposit-taking) that still follow responsible-lending rules. They assess case-by-case and often accept alt-doc income, recent credit repair, or complex situations. Pricing can be higher, but access and speed can be the winner when timing matters. In a market with auctions and tight finance clauses, a quicker approval lets you make stronger offers, fix the rate (holding today’s fixed rate so you’re protected if rates rise before settlement) and settle without last-minute stress.
In short: banks focus on consistency and low risk whilst specialist lenders focus on flexibility and solutions.

For many home buyers in New Zealand, banks remain the go-to option for home loans. Banks often suit borrowers who:
Mini-scenario: You’re PAYE, 20% deposit, tidy statements. A bank approval gives sharp rates and long-term certainty.
Alternative lenders can be the smart (in some situations, only) option if you:
Mini-scenario: You’ve traded 12 months with solid invoices but incomplete accounts. Alternative lenders use alt-doc to get you in now, with a plan to refinance to bank rates once financials season.
For the full guide, see our Non Bank Lending services
Your mortgage doesn’t need to be permanent with one type of lender. Many borrowers switch as their situation changes.
Plan the exit: map milestones (full financials, reduce card limits, let new rental income season), check any discharge/early-repayment fees, and set a target date to refinance.
Using a specialised mortgage adviser, such as Platinum Mortgages, is the best way to navigate the options between non bank and bank home loans. We can recommend the best deal tailored to your unique needs and manage the application process on your behalf.
Throughout the life of your mortgage, we are here to support you as your finances and circumstances change, and manage the resulting changes to your mortgage on your behalf, whether it involves refinancing within the same financial institution or switching to a different one. We ensure that you are aware of any exit fees or penalties, and make sure the new home loan terms benefit you in the long run.
If you are looking to finance or refinance a property, we are here to take the work off your hands. Get in touch for a no-obligation chat about your situation and how we can help you reach your homeownership goals.
Banks usually offer the lower interest rates if you meet their strict criteria. Specialist lenders may charge higher rates and fees but can make a purchase possible sooner, so you need to weigh the total 12-24 month cost.
Not usually. Banks apply tighter, standardised blanket rules. Non banks assess case-by-case (self-employed, recent adverse credit history, complex income).
If your application was declined, your income is irregular, you’re buying a non-standard property, or you need speed for an auction. If you’re PAYE with a strong deposit and clean credit, a bank is typically the sharper long-term choice.
Angela is an accredited Financial Adviser, licensed under FSP742251 and has been in the Financial Industry since 2006. Our 5-star Google reviews reflect the excellent customer experience we promise — making your home loan journey positive, stress-free, and rewarding. At Platinum Mortgages, our clients are the reason we exist — so you can be confident every step is guided by genuine care and expertise.