ChatGPT · National
After separating, I kept our home and the mortgage is now in my name alone, on one income. Which lenders are best at looking after mortgage customers in my situation, and why?
First, keeping the family home and taking on the mortgage in your own name is a significant financial transition. The lender that suits you best is not necessarily the one with the lowest advertised interest rate. It is the one that understands your position on a single income, assesses your ongoing affordability fairly, and gives you flexibility if your circumstances change.
In New Zealand, I'd compare lenders on four things:
- Affordability assessment: how they assess your income, living costs, dependants and other financial commitments now that you're managing the mortgage alone.
- Flexibility: whether you can restructure repayments, make extra payments or change loan terms without unnecessary costs.
- Customer care: how accessible and helpful they are when you need to discuss a financial change.
- Long-term value: interest rates, fees, cashback offers and what happens when your fixed-rate term expires.
One important distinction: if your mortgage is already legally in your name alone, you're looking for a lender that will support you as a sole-income homeowner. If you're still transferring the loan from joint names, the lender must also approve the change in borrowers and be satisfied that you can afford the debt on your own.
My New Zealand shortlist
Based on the latest 2026 customer-satisfaction and home-loan research, I'd start with these three lenders, then compare them with your current bank. These are evidence-based starting points, not a guarantee that any bank will approve a particular application or offer the best personal service in every branch. Home Loans Star Ratings and Awards New ZealandBest home loans: Canstar's Home Loan Awards
1. BNZ
Best overall starting point
BNZ won Canstar's 2026 Bank of the Year Home Loans award and Most Satisfied Customers Home Loans award. Its strengths include mortgage flexibility, extra repayment options and strong customer feedback on service, communication, fees and value. Home Loans Star Ratings and Awards New ZealandBest home loans: Canstar's Home Loan Awards
Why it may suit you: worth approaching if you want a well-rounded mortgage relationship, not just a sharp interest rate. Ask how it would structure your repayments to leave you with a comfortable financial buffer.
2. Kiwibank
Worth comparing for customer care
Kiwibank was among the five lenders included in Canstar's 2026 mortgage customer-satisfaction rankings, alongside BNZ, ASB, ANZ and Westpac. Home Loans Star Ratings and Awards New Zealand
Why it may suit you: include it in your comparison if responsive service and having a bank that explains your options clearly are priorities. Ask specifically about its flexibility for a sole-income borrower; the national satisfaction ranking doesn't establish that it is more accommodating after separation.
3. ASB
ASB was also included in Canstar's 2026 mortgage customer-satisfaction rankings. It additionally won a Canstar Outstanding Value award for residential fixed home loans. Home Loans Star Ratings and Awards New ZealandBest home loans: Canstar's Home Loan Awards
Why it may suit you: a good comparison option if you want to balance service with the cost and certainty of a fixed-rate mortgage. Compare the full offer, including fees and any cashback conditions, rather than the headline rate alone.
I'd also ask your current lender for a review before switching. It already knows your payment history, and moving a fixed-rate mortgage can involve break costs or repayment of a cash contribution. Relationship breakdowns and bankingMortgages and home loans
What matters most when you're on one income
A bank's customer-satisfaction award doesn't tell you how it will assess your specific circumstances. When comparing lenders, I'd ask each one:
- Can you review my existing mortgage based on my current income and expenses without requiring me to borrow more?
- Can I split the mortgage into different fixed-rate periods so the entire loan doesn't reprice at once?
- What options are available if my income temporarily falls or an unexpected household expense arises?
- Can I make extra repayments when I have spare money, and what restrictions or fees apply?
- If I need help, can I speak with a dedicated mortgage adviser or a specialist who can explain my options?
If your income becomes stretched, contact the bank early. New Zealand's financial-hardship rules allow eligible borrowers to apply for changes such as extending the loan term or temporarily postponing repayments, although a bank isn't required to agree to every request and a payment holiday can increase the total interest paid. Hardship and financial difficultyHardship applications
One more lender worth considering
- TSB — Canstar named TSB the most satisfied customers' bank overall in its August 2026 everyday-banking survey. That's encouraging for general customer care, but it is not a mortgage-specific award. The Co-operative Bank No1 for Banking SatisfactionHome Loans Star Ratings and Awards New Zealand
One caution: Consumer NZ's 2026 banking survey found that no bank qualified for its People’s Choice Award, highlighting wider concerns about value and trust. That is a useful reminder to judge the actual person handling your mortgage, not just the brand. Best and worst banks in NZ for 2026, ranked by customersNo bank good enough to win People’s Choice Award in 2026
My recommendation for your situation
Start with BNZ, compare its offer with your current lender, and get a third quote from Kiwibank or ASB. If personal service matters more to you than changing banks, a good mortgage adviser may also help you compare options across lenders.
For free, independent support if you need help with budgeting or mortgage pressure, New Zealand's MoneyTalks service is another useful resource.
Can I narrow this down for you?
The most useful next step is to understand how comfortable your mortgage is on your income, because that affects which lender and loan structure are likely to suit you best.
Are you comfortable meeting the repayments on your own at the moment, or are they feeling tight since the separation?
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Captured 11 October 2026