The hidden costs of car ownership

The price tag is the smallest line item

When most people evaluate a car purchase, they compare sticker prices and monthly finance payments. Both matter, but they capture only a fraction of what the car will actually cost over the years you own it. Across a typical ownership period, the running costs and depreciation often exceed the original purchase price.

Understanding the full cost of ownership matters for two reasons: it changes which car you should buy, and it changes how much car you can genuinely afford.

The major hidden costs

Depreciation — the largest cost for most owners. New cars typically lose 15–25% of their value in the first year and 50–60% over five years. Depreciation is silent — it does not show up on a bill — but it is the single biggest line item in true ownership cost. The difference between what you paid and what the car is worth when you sell is real money you spent on owning it.

Fuel — straightforward but variable. Annual fuel cost depends on the car’s consumption, your annual distance, and local fuel prices. A 50% difference in fuel economy between two cars typically translates to a similar percentage difference in annual fuel spend.

Insurance — comprehensive insurance varies enormously by driver age, vehicle type, location, and claims history. Two drivers with the same car can pay very different premiums. Insurance also tends to scale with vehicle value, so more expensive cars cost more to insure.

Maintenance and servicing — scheduled servicing keeps a car under warranty and is usually predictable. Beyond scheduled work, expect tyres every few years, brakes periodically, and unscheduled repairs that grow as the car ages. A reasonable budget is 1–3% of the car’s value annually.

Registration and licensing — annual fees that vary by jurisdiction, vehicle weight, and engine size. Often a few hundred units of currency per year, but sometimes more for larger vehicles.

Finance interest — if you borrowed to buy the car, interest is a real cost of ownership separate from the principal repayment. Across a typical car loan term, interest can add 10–25% to the total cost of the vehicle.

How the costs stack up

For a moderately-priced new car driven typical annual distances:

• Depreciation is usually the largest single cost — often 40–60% of total ownership cost across the first five years.
• Fuel is typically 15–25% of total cost, depending on consumption and distance.
• Insurance is typically 8–15%.
• Maintenance is typically 5–10%, growing as the car ages.
• Finance interest, registration, and other charges make up the remainder.

The exact split varies by vehicle and use, but the pattern holds: depreciation dwarfs almost every other cost, and the running costs combined comfortably exceed the purchase price across a 10-year ownership period.

Why this matters when you buy

Two cars at the same purchase price can have very different total ownership costs. A car with excellent residual value, modest insurance, low fuel consumption, and cheap parts might cost half as much to own as a similarly-priced car with poor residuals, expensive insurance, thirsty fuel use, and pricey servicing.

The cars that look like good deals on the showroom floor are sometimes the most expensive to own. The cars that look more expensive are sometimes the cheapest over five or ten years. The only way to know is to model the total cost.

Next steps

Use our total ownership cost calculator to model the full cost of owning a specific vehicle including depreciation, fuel, insurance, and maintenance. To dig into depreciation specifically, try the depreciation calculator.