Most banks cap repayments at 30% of gross income
Max Property Price
$100,000.00
Max Loan Amount
$0.00
Serviceability Ratio
0.0%
What is the 30% serviceability rule?
Most NZ banks will not lend you more than 30% of your gross income in repayments. This means if you earn $90,000, your maximum yearly repayments would be about $27,000. This calculator uses that rule to work out what you can afford.
Does this include rates and insurance?
No. This calculator only looks at the mortgage cost. You should also set aside money for council rates, home insurance, and maintenance. A good rule is to add $5,000-$8,000 per year for these costs.
Can I get a bigger loan with two incomes?
Yes. If you are buying with a partner, banks will use your combined income to work out how much you can borrow. This often makes a big difference to your borrowing power.
Note: This gives an estimate only. Banks use their own tests, which may include stress-testing at higher interest rates.
Disclaimer: This calculator provides estimates based on current HMRC rates and thresholds for the 2025/26 tax year. It does not constitute professional tax, financial, or legal advice. Your actual liability may differ depending on your individual circumstances. Always consult a qualified accountant or tax adviser before making financial decisions. Read our terms
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