How this calculator works
Loan-to-value ratio is the loan as a percentage of the property's value, and its complement is your deposit or equity percentage โ the two always add to 100%:
LVR = (loan amount ÷ property value) × 100
In New Zealand the key thresholds are set by the Reserve Bank: owner-occupiers generally need an LVR at or below80% (a 20% deposit), and investors at or below 65% (about a 35% deposit) for an existing home. Above 80% a bank low-equity margin usually applies. Newly built homes are exempt from these limits, which the calculator accounts for when you tick the new-build option.
Worked example
A $560,000 loan on a $700,000 home is an 80% LVR, so the deposit is $140,000 (20%), right on the owner-occupier limit, with no low-equity margin. Lift the loan to $630,000 and the LVR becomes 90%, above the limit, so a low-equity margin would usually apply and you would need at least $140,000 of deposit to get back under 80%. As an investor, the same $700,000 property would need about a $245,000 deposit to meet the 65% limit.
What changes your LVR
- Deposit size โ the main lever on a purchase; getting under 80% removes the low-equity margin.
- Property valuation โ on a top-up or refinance the bank uses its current valuation, not your purchase price.
- Loan repaid โ every principal repayment lowers the loan and your LVR over time.
- New build โ exempt from the LVR limits, which can open up a low-deposit purchase.
A note on accuracy
The thresholds reflect the Reserve Bank's LVR settings shown in the verified badge above; banks may still apply their own criteria and can lend a limited share outside the limits. This tool does not quote a specific low-equity margin rate, which varies by lender. For the current rules, see the Reserve Bank of New Zealand, and our methodology for the formulas and sources.