The true cost of owning a car
The purchase price is the down-payment on years of running costs. Here is what a car really costs to own — including the Irish-specific extras.
What the sticker leaves out
The largest cost by far for most cars — the value it loses each year, which you only feel when you come to sell. A car that holds its value can be far cheaper to own than a cheaper one that doesn’t.
An annual cost that varies hugely by driver, car, age and area — and easy to underestimate before you get a quote.
Usually your biggest month-to-month cost, driven by the car’s efficiency and your mileage.
Annual motor/road tax, the periodic NCT roadworthiness test, and routine servicing, repairs and wear items.
Tyres, brakes and other wear items over the years you own it — modest each year, real over five.
If you buy on PCP or a loan, the interest is a genuine cost on top of the price of the car.
Why the purchase price misleads
Two cars with the same price can cost thousands apart to own once depreciation, fuel and insurance are counted — a cheap-to-buy car that is thirsty, dear to insure and drops value fast can be the most expensive choice overall. The sticker shows none of this, which is exactly why whole-life cost is the only fair way to compare cars.
How to work out your true cost (and the Irish extras)
Add up depreciation (the price minus a realistic resale value), insurance, fuel or charging for your mileage, motor tax, servicing and tyres across the years you will keep it — plus any finance interest. In Ireland, remember VRT is already built into the price of a new car, annual motor tax is set by emissions (or engine size on older cars), and the NCT is a periodic roadworthiness test. Efficient, reliable, value-holding cars usually win. Compare specific cars in the calculator.
Honest by design
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Rules of thumb only get you so far. Run a specific option through the calculator for a sourced, dated, confidence-graded figure.
Frequently asked
For most cars it is depreciation — the value the car loses over time — not fuel or the purchase price. It is invisible until you sell, which is why it is so easy to overlook.
It varies widely, but insurance, fuel, tax, servicing and depreciation together typically dwarf the headline price over five years. The only reliable answer is your own whole-life total for a specific car.
VRT (Vehicle Registration Tax) is built into the price of a new car; annual motor tax is based on CO₂ emissions for newer cars (or engine size for older ones); and the NCT is Ireland’s periodic roadworthiness test.
Related guides
See the big picture in the Hidden-Fee Index — how much the advertised price hides across every category — or browse all buyer guides.
This guide explains typical, well-known cost mechanisms for general education — actual fees vary by operator, destination and date. Confirm live prices, fees and your consumer rights with the retailer and official sources before you buy. TrueTotal provides guidance, not financial or legal advice.