Bank test rates
Confirmed 13 July 2026
The interest rate each big bank uses to check you could still afford your loan if rates rose. The test rate, not the advertised rate, sets how much you can borrow.
The short answer
As confirmed on 13 July 2026, the test rates are ANZ 6.85%, ASB 6.85%, BNZ 7.10%, Kiwibank 6.95% and Westpac 6.95%. A surplus of $3,000 a month supports a loan of $457,834 at 6.85% over 30 years, but $446,407 at 7.10%.
| Bank | Test rate | In force from | Sources |
|---|---|---|---|
| ANZ | 6.85% | 22 April 2026 | interest.co.nz table · interest.co.nz · MPA |
| ASB | 6.85% | not shown | interest.co.nz table · interest.co.nz · MPA |
| BNZ | 7.10% | not shown | interest.co.nz table · interest.co.nz · MPA |
| Kiwibank | 6.95% | 1 July 2026 | interest.co.nz table · interest.co.nz · MPA |
| Westpac | 6.95% | not shown | interest.co.nz table · interest.co.nz · MPA |
| Average of the five banks | 6.94% |
What your surplus supports
Enter what is left each month after living costs and other debts.
| Bank | Test rate | Loan it supports | Repayment at 5.06% |
|---|---|---|---|
| ANZ | 6.85% | $457,834 | $2,474.57 |
| ASB | 6.85% | $457,834 | $2,474.57 |
| BNZ | 7.10% | $446,407 | $2,412.81 |
| Kiwibank | 6.95% | $453,208 | $2,449.57 |
| Westpac | 6.95% | $453,208 | $2,449.57 |
| Average of the five banks | 6.94% | $453,667 | $2,452.05 |
The loan is the amount the monthly surplus repays at each test rate over 30 years. The repayment column shows what that loan would cost at today’s average 1-year rate. Banks decide; this is an estimate.
About these rates
- There is no regulated test rate: each bank sets its own.
- interest.co.nz and MPA confirmed these rates on 13 July 2026, before the OCR rise of 2 September 2026. The interest.co.nz table still showed the same figures on 10 November 2026, but banks may have moved since.
- Banks usually test over 30 years (secondary sources only). We use 30 years.
- ANZ calls its test rate the Servicing Sensitivity Rate.
interest.co.nz table · interest.co.nz, 13 Jul 2026 · MPA, 13 Jul 2026
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