How much does it really cost to own a car in NZ?
The sticker price is just the start. Here's everything else a car actually costs to own in New Zealand — and how it adds up per week.
By the KiwiSums team
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Published 22 July 2026
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Updated 22 July 2026
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6 min read
More than the purchase price
The price on the windscreen only covers getting the car onto your driveway. From there, registration, a WOF or COF, insurance, fuel or charging, servicing, tyres, and — often the biggest cost of all — depreciation keep adding up every single week you own it.
"The price on the windscreen is what you pay to get the car. The price of owning it is what you pay every week after that."
Financing the purchase adds another layer — loan interest is a real ownership cost too, even though it's easy to mentally file it under "the loan" rather than "the car".
The running costs that catch people out
| Cost category | Typical range | Notes |
|---|---|---|
| Fuel / energy | $40-80/week | Varies hugely with vehicle type and km driven |
| Registration | ~$12-15/week | Petrol vehicles pay more than diesel/EV rego |
| WOF / COF | ~$2-3/week | Small on its own, but stacks with everything else |
| Insurance | $15-35/week | Depends heavily on car value, age and driver history |
| Servicing & repairs | $15-40/week | Rises with vehicle age and mileage |
| Depreciation | $40-100+/week | Often the largest cost, and the easiest to forget |
Figures are illustrative for a typical mid-size petrol car — your actual costs depend on the vehicle, how much you drive, and where you live. Run your own numbers in the calculators below.
New vs used: does cost of ownership differ?
New cars lose value fastest in dollar terms in the first few years, but tend to need less unplanned repair spending early on since everything is, well, new. Used cars cost less upfront and depreciate more slowly in dollar terms, but repair risk climbs with age and mileage.
There's no universally "cheaper" answer — it depends on how long you keep the car, how much you drive, and how much risk you're comfortable carrying on repairs.
What you can do now
- Run your real weekly cost. Plug in your actual vehicle into the car running cost calculator rather than relying on rules of thumb.
- Factor in depreciation. Check the car depreciation calculator before you buy, not after.
- Compare finance costs. If you're borrowing to buy, see the true cost in the car finance calculator.
- Set a responsible ceiling. Use the car affordability calculator to see what you can comfortably take on.
Written by the KiwiSums team
We build plain-English calculators for New Zealand money decisions. This explainer is general information, not financial advice — figures are illustrative and simplified for clarity. Talk to your bank or a licensed adviser about your own situation.
Assumptions & sources
Typical NZ vehicle running cost ranges from insurers, AA guidance, and NZTA/Waka Kotahi registration and RUC schedules.
22 July 2026
22 July 2026
Ranges are indicative for a typical mid-size petrol car — your actual costs depend heavily on vehicle age, size, fuel type, driving distance and location. Use the calculators linked throughout for figures specific to your situation.
Related reading
EV vs petrol: which is cheaper to own in NZ in 2026?
Electric cars cost more upfront but less to run. Here's how the total cost of ownership actually compares in NZ.
Read article →
What does your salary actually look like after tax in NZ?
A $80,000 salary doesn't mean $80,000 in the bank — here's what actually comes off your pay, and what's left.
Read article →Frequently asked questions
Usually depreciation — most cars lose 15-20% of value in the first year and continue depreciating steadily, a cost that's easy to overlook since no bill arrives for it.
Commonly somewhere between $120-250/week all-in (fuel, rego, WOF, insurance, servicing, depreciation) for a mid-size petrol car, though it varies a lot by vehicle age, size and how much you drive.
Road User Charges apply to diesel vehicles and, since April 2024, electric and plug-in hybrid vehicles too (petrol vehicles pay fuel excise duty at the pump instead) — check with NZTA/Waka Kotahi for your specific vehicle.
