Depreciation is the quietest big expense in car ownership: no invoice, no monthly statement, just a gap that shows up the day you sell or trade. It's also the most predictable part of car costs once you know the shape of the curve. Here's that shape, why it bends the way it does, and how it secretly drives your lease payments and insurance payouts.
A new car's value drops hardest in year one, typically 15 to 25 percent by segment. Two forces cause it. The instant one is retail-to-wholesale: a car with your name on the title can no longer be sold as new, so its price reprices from dealer-retail to what a used-car manager will pay at auction. The slower one is the accumulation of the first year of miles, wear, and model age.
After year one the rate settles to roughly 8 to 13 percent a year, charged on the remaining balance, not the original sticker. That's why the dollar losses shrink each year even as the percentage stays steady: 10% of $30,000 is smaller than 10% of $34,000. The curve flattens as it goes, which is the entire economic argument for used cars.
| Year | Typical value of a $42,000 SUV | Share of 5-year loss |
|---|---|---|
| 1 | $34,440 | 39% of the 5-year loss lands here |
| 2 | $30,996 | 18% |
| 3 | $27,896 | 16% |
| 4 | $25,107 | 14% |
| 5 | $22,596 | 13% |
Worked at typical SUV rates (18% off in year one, 10% a year after). Five years in, the car holds 53.8% of its price, and nearly two-fifths of the total loss happened before the first oil change.
Enter price, segment, condition and miles; the calculator returns value year by year for a 10-year horizon, with the year-one drop called out.
Car Depreciation Calculator →Retention ranks follow buyer demand more than build quality. Pickup trucks lead, commonly retaining around 60 percent at five years, because truck buyers are loyal, trucks work for a living, and supply stays disciplined. Sports cars and mainstream SUVs follow. Sedans sit lower, minivans lower still. Luxury vehicles pay a double penalty: higher stickers give buyers more room to demand discounts, and their feature-heavy trims age fast.
Electric vehicles sit at the bottom, often under 45 percent retention at five years. Technology churn is the main driver, each model year brings meaningful range and charging improvements, plus incentive programs that discount new EVs against used ones. The result is a segment where a 2-year-old car can carry last year's range and this year's discount against it.
You can't move the segment curve, but you land somewhere in a band around it. Mileage is the big one: market pricing typically knocks a few percent off per 10,000 miles above the roughly 12,000-mile-a-year norm. Condition is next, and it compounds, because deferred maintenance shows up twice, once as the repair bill and again as buyer suspicion at trade-in. Complete service records, garaging, and mainstream colors and configurations all nudge you toward the top of your car's band.
What you can't charm your way past: accident history, which commonly costs 10 to 20 percent after a major repair regardless of workmanship, and redesign cycles, which reprice the old body style the moment a new one appears.
Leasing is depreciation with paperwork. Your monthly lease payment mostly covers the value the car is expected to lose during the term, plus a finance charge. The residual value in your contract is the lessor's depreciation forecast, which is why a truck that holds 60% leases cheaper per month than a luxury sedan that holds 45% at the same sticker.
Insurance pays depreciation too, just at the worst moment. After a total loss, a standard policy pays actual cash value, the depreciated number, which is why a 3-year-old car with a loan balance can leave you thousands short. That gap is exactly what gap insurance exists to cover, and what a diminished-value claim tries to recover after major repairs.
The arithmetic sweet spot for used cars is 2 to 4 years old: the steepest part of someone else's curve is already absorbed, remaining depreciation is gentle, and modern cars routinely outlive their financing. Two caveats keep it honest. Financing rates on used cars run higher than new-car promos, which claws back some of the savings. And if you keep cars a decade, the first-year hit amortizes to a rounding error, so buying new for the warranty and the exact spec you want isn't irrational, it's just a different time horizon.
Run your specific numbers instead of arguing vibes: our lease-vs-buy and new-vs-used calculators both price depreciation explicitly, and the depreciation calculator above generates the curve they're built on.
Typically 15 to 25 percent depending on the segment, with mainstream SUVs and compacts near 18, sedans around 22, and luxury cars and EVs at the bad end near 25. Part of that is the instant new-to-used transition the moment the car is titled; the rest is the first year of miles and age.
Three forces stack: rapid technology improvement makes last year's range and charging feel dated, federal and state incentives effectively discount new EVs against used ones, and battery replacement anxiety discounts high-mileage examples. Retention has improved in tight markets, but five-year EV retention commonly runs under 45 percent versus mid-50s for the average vehicle.
Brand and model reputation, full stop. The spread between the best and worst models in the same segment is far wider than the spread between segments. Mileage and condition move you within a band; the model decides where the band sits.
Arithmetic favors a 2-to-4-year-old used car: the steepest part of the curve is already paid for by the first owner. But the calculation depends on financing rates, warranty coverage, and how long you keep cars. A buyer who keeps a new car 10 years amortizes that first-year hit into a rounding error; a 3-year flipper feels every point of it.
Yes, but less than most people hope. Market data typically shows a few percent of value per 10,000 miles under the average for the car's age. A car with half the expected miles commands a premium, not a proportional windfall, because buyers price in age and model years regardless of odometer.