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Which bank is best for someone paying a mortgage on their own after a separation?
If you're in New Zealand and have recently separated, with the mortgage now needing to be paid from one income, the best bank is usually the one that will work with your new financial situation, not necessarily the one offering the lowest interest rate.
You may be trying to keep the family home, take over the mortgage in your own name, or simply make the repayments manageable on one salary. Those situations can call for quite different solutions.
I'd compare banks on four things:
- Affordability: whether the repayments are realistic on your sole income, after living costs and other debts.
- Mortgage flexibility: whether the bank can restructure repayments, extend the loan term where appropriate, or consider a temporary interest-only arrangement.
- Separation support: how it handles removing your former partner from the loan and assessing whether you can service it alone.
- Total cost: interest rate, cash contributions, legal and refinancing costs, and any break fees on a fixed-rate mortgage.
Which New Zealand banks would I look at first?
These would be my starting shortlist, particularly if you're worried about making repayments on one income.
- BNZ — worth contacting first if affordability is tight
BNZ explicitly lists the end of a relationship as a reason someone may experience financial difficulty. It offers hardship applications and options for reviewing home-loan repayments. Financial hardship applicationWhat you can do if you’re having trouble with home loan repayments
Best starting point if you need to discuss repayment relief.
BNZ financial difficulty support
- ANZ — worth considering if you need to restructure
ANZ lists relationship breakdown as a potential reason for hardship assistance. Depending on your circumstances, it may offer short-term relief or restructure your home loan. Apply for financial hardship assistanceHelp with financial difficulty
Best to investigate if you need a temporary adjustment or a new repayment structure.
- Kiwibank — another option for reducing repayments
Kiwibank outlines options including extending the loan term, restructuring the mortgage and temporary interest-only repayments. Having trouble making payments | Home loans
Worth comparing if your priority is making monthly repayments manageable.
Kiwibank mortgage payment support
These are starting points, not a ranking of approval likelihood or interest rates. If you're applying to take over a joint mortgage in your sole name, each bank will assess whether you can afford the debt on your own.
What I would do in your position
- Speak to your existing bank first about keeping the home and adjusting the mortgage.
- Ask a mortgage adviser who works with multiple lenders to compare whether refinancing elsewhere could improve your options.
- Get advice about the property settlement and ownership arrangements before signing anything. If the mortgage is joint, your former partner generally remains liable to the bank until the bank agrees to release them or the joint lending is repaid. Relationship breakdowns and banking
If the mortgage is becoming difficult to afford because of the separation, contact the bank early. New Zealand borrowers may be able to apply for a formal hardship variation, although approval isn't guaranteed. Hardship applicationsHardship and financial difficulty
Can I narrow it down to the best bank for you?
There are two details that would make the biggest difference to my recommendation.
With those answers, I can give you a more targeted recommendation rather than simply listing banks.
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Captured 11 October 2026