New Cars
New vs Used: Which Actually Costs Less
Run the five-year arithmetic and the gap is smaller than the internet says — roughly $40 a month on a typical midsize sedan.
Quick answer
The actual five-year arithmetic
Same model, same trim. One bought new at $32,000, one bought at three years old with 36,000 miles for $22,000. Both financed over 60 months with no down payment, both driven 12,000 miles a year, both in a state with about 7 percent sales tax.
| Line item over 5 years | New at $32,000 | 3-year-old at $22,000 |
|---|---|---|
| Sales tax, title and fees | $2,500 | $1,800 |
| Depreciation | $17,500 (to about $14,500) | $13,500 (to about $8,500) |
| Finance interest, 60 months | $5,500 at 6.0% APR | $6,200 at 9.5% APR |
| Insurance | $8,500 ($1,700/yr) | $7,300 ($1,460/yr) |
| Maintenance and repairs | $2,600 | $5,400 |
| Five-year total | $36,600 | $34,200 |
| Cost per month | $610 | $570 |
The used car is ahead by about $2,400 over five years. That is real money and it is also less than one year of insurance. Anyone telling you a used car saves half is comparing sticker prices, not ownership costs.
Why used usually wins
Depreciation is the largest cost of owning any car, and it is not linear. A typical mainstream vehicle sheds a large share of its value in the first three years and then flattens out.
- You skip the steepest part of the curve. The first owner absorbs the drop from sticker to three-year value; you buy in after that.
- Sales tax scales with price. A $10,000 lower purchase price is roughly $700 less tax in a 7 percent state, before you count title and registration fees that also scale.
- Insurance is cheaper because comprehensive and collision premiums track the car's replacement value.
- Registration fees in many states are value-based and drop each year.
- Three years of real-world reporting exists. You can find out which trim has the transmission complaint before you buy, rather than after.
Where new claws it back
- Interest rates. New-car APRs run roughly 2 to 4 points below used-car rates for the same credit profile, and manufacturers periodically subsidize them to near zero. On a $25,000 loan, three points is over $2,000 across five years.
- Warranty. A new car covers essentially every repair for three years, and the powertrain for five. Your used car is out of bumper-to-bumper coverage from day one.
- Maintenance timing. Years four through eight are when tires, brakes, batteries, suspension bushings and the first big scheduled service land. That is exactly the window a used-car buyer owns.
- Safety and efficiency. Automatic emergency braking, blind-spot monitoring and better crash structures improved substantially across the late 2010s and early 2020s, and fuel economy improved with them.
- No unknowns. No prior owner, no deferred maintenance, no history report to interpret.
Where the sweet spot sits by situation
- Best overall value
- A 3 to 5 year old mainstream car with service records, bought with cash or a short loan, kept for 8 or more years.
- Buy new if
- There is subsidized APR, you keep cars a decade or more, you drive very high mileage, or you need the safety systems a specific older generation lacks.
- Buy used if
- You are financing at market rates, you want a lower monthly payment, or you are buying a model with strong reliability and cheap parts.
- Avoid
- A 1 to 2 year old car at only a small discount. You take most of the used-car downsides and skip most of the savings.
- Also avoid
- A 10-year-old luxury car priced like an economy car. The purchase price is the cheap part; a single air-suspension or transmission repair erases the savings.
One thing that dominates all of this: how long you keep the car. Depreciation per year falls the longer you own it, so a new car held for twelve years beats a used car traded every four. The cheapest car is nearly always the one you already own and maintain properly.
Run your own version of this table
The table above is one plausible pair of cars. Your APR, your insurance rate and your state's tax will move the totals by more than the $2,400 gap it shows, which is exactly why the general question has no general answer. Six numbers decide it, and you can get all six in an afternoon.
Get two real prices
The out-the-door number on the new car, and the actual asking price on two or three used examples of the same model at three years old.
Get two real APRs
Pre-approve through a credit union before you talk to a dealer, and ask specifically what the promotional new-car rate is — see auto financing basics.
Get two insurance quotes
Same carrier, same coverage, both VINs or both model years. This takes ten minutes and often differs by more than people expect.
Estimate maintenance honestly
For the used car, price the things due in your ownership window: tires, brakes, a battery and any timing belt interval.
Add it up over the years you will actually keep it
Not five years if you trade every three. The comparison changes shape with the holding period.