NZ Mortgage Guide

How Much Can I Borrow on a $100k Salary in NZ?

On a $100k NZ salary, your borrowing capacity in 2026 sits between approximately $480k and $680k — and the spread between lenders is bigger than most buyers realise.

The Ballpark Numbers

A single applicant earning $100,000 gross in NZ with average living expenses, no other debts, and a clean credit file can typically borrow between $480,000 and $680,000 in 2026. The exact figure depends on which lender's test rate is applied, how their CCCFA living-expense calculation lands, what your credit card limits look like, and whether you have student loan, hire purchase, or BNPL commitments. Couples earning $200k combined typically borrow $950k-$1.35m on the same logic.

Why Different NZ Lenders Quote Very Different Numbers

It's normal for ANZ to quote $620k while BNZ quotes $720k to the same applicant. The drivers:

  • Test rate — each lender uses a different stress-test rate (7.0%-9.0% range in 2026). Lower test rate = higher borrowing capacity.
  • Living expense floor — each lender applies a different minimum living-expense figure. Some use $1,400/month for a single applicant, others $1,800/month.
  • Credit card limit treatment — banks calculate serviceability against the limit, not the balance, but the % applied varies (3% to 4% of limit per month is common).
  • Non-base income shading — bonuses, overtime, commissions are typically counted at 70-100% of recent history; rental income at 70-80%.

Lender-by-Lender Estimate on $100k Salary

As a 2026 guide (clean credit, no other debts, single applicant, 20% deposit assumed): ANZ ~$580-620k, ASB ~$570-610k, BNZ ~$620-680k, Westpac ~$580-630k, Kiwibank ~$560-600k, TSB / SBS / Co-operative Bank ~$540-600k. Specialist non-banks vary more widely. These are estimates only — Finch produces lender-specific quotes free of charge based on your real income and expenses.

How to Maximise Your $100k Salary Borrowing Power

  • Close unused credit cards — every $5,000 of credit card limit reduces borrowing power by ~$25,000.
  • Pay off / close BNPL accounts — Afterpay, Laybuy, Zip, Klarna all reduce capacity.
  • Pay down personal loans & hire purchase — these are deducted at full minimum repayment.
  • Clean up 90 days of spending — CCCFA scrutiny is intense; reduce restaurants, BNPL, Uber, streaming subs.
  • Verify all income sources — bonuses, secondary income, Working for Families, Best Start, rental income.
  • Use a broker — Finch matches you to the most generous lender for your specific profile.

Couple Earning $200k vs Single on $100k

A couple on $200k combined borrows materially more than 2x a single on $100k, because the second applicant's expenses are shared. Typical couple capacity on $200k combined: $950k-$1.35m. The exact number depends on whether income is split evenly (highest capacity), or skewed (slightly lower due to KiwiSaver and PAYE banding).

Try the Calculator, Then Get a Real Quote

Use our NZ borrowing power calculator for a quick ballpark, then book a free 15-minute call for a lender-specific figure. A real broker assessment takes about 20 minutes and is accurate within $5,000.

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