Car Loan Calculator NZ — Repayments, Interest & Balloon

Work out the real cost of a car loan in New Zealand — weekly, fortnightly or monthly repayments, total interest, fees rolled into the loan and any balloon payment. Compare dealer finance with a bank or credit-union loan on the same footing.

NZ car loans commonly run 8–16% depending on credit and vehicle age.

Leave 0 for a standard loan.

Amount financed—
Repayment—
Total interest—
Total cost of the car—
Equivalent per month—

General information only — not financial, tax or legal advice. Figures are estimates from the inputs you enter. Confirm with your adviser, accountant, lender or insurer.

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Prices exclude GST. Illustrative tools only — not legal, tax or financial advice.

What to compare when the dealer says "only $X a week"

Weekly repayments hide the term and the total interest. Two loans can both be "$150 a week" while one costs $4,000 more because it runs a year longer or has a balloon. Always compare the total cost of credit (interest plus fees), and check whether the rate is fixed. Under the CCCFA lenders must disclose these figures — ask for the disclosure statement before you sign.

Balloon payments

A balloon (or residual) lowers the regular repayment by leaving a lump sum to pay at the end. It suits people who plan to sell or refinance at that point, but you pay interest on the balloon amount for the whole term and can end up owing more than the car is worth. This calculator shows the interest cost so you can see the trade-off.

Assumptions and sources

Repayment Standard amortising loan with fees capitalised; balloon treated as a lump sum at the end of the term.
Frequency Interest rate divided by the number of payments per year (weekly/fortnightly/monthly).
Not included Insurance, on-road costs, early-repayment or break fees.
Consumer protection Lenders must disclose total cost of credit under the CCCFA — consumerprotection.govt.nz

Last reviewed 6 September 2026. Rates and thresholds change — check the linked sources before relying on a figure.

Frequently asked questions

What is a good interest rate for a car loan in NZ?

In 2026, secured car loans from banks and credit unions for newer vehicles typically sit around 8–12%; dealer and finance-company loans for older cars or weaker credit run 13–20%+. Your rate depends on the vehicle's age, your credit history and whether the loan is secured.

Is it better to get car finance from the dealer or the bank?

Neither is automatically cheaper. Get a pre-approval from your bank or credit union first, then let the dealer try to beat it — compare total interest and fees, not the weekly figure.

Can I pay off a car loan early in NZ?

Usually yes, but fixed-rate loans can charge a break fee and some charge an early-repayment fee — check the contract. Even with a fee, paying extra early often saves more in interest than the fee costs.

Does the calculator include insurance?

No. Comprehensive insurance, mechanical breakdown insurance and payment-protection insurance are often sold with the loan; add them to the fees line if they are financed, and decide separately whether you need them.