Why a New Car Loses Value So Fast

A new vehicle loses value fast because once it has been bought and driven, it is priced against other used vehicles rather than new ones, and its age, miles and any damage lower that price from there. AAA's 2026 Your Driving Costs study puts the average loss at $4,422 a year, the single largest cost of owning a new vehicle. How much a given car loses depends on the price paid at the start, its mileage, condition and history, and what comparable used vehicles are selling for when it is sold.

Key takeaways

• AAA's 2026 study (published September 15, 2026) estimates depreciation at a weighted average of $4,422 per year, about 34% of the $12,863 total annual cost of owning a new vehicle (the share is calculated here from AAA's two figures).
• Used-vehicle prices do not fall along a fixed curve: the BLS used-vehicle price index rose about 43% from January 2021 to its July 2022 peak and was about 14% below that peak in September 2026.
• A car loan with little or no down payment can leave the balance above the car's value for the first year or two; in the illustrative example below, the gap is about $2,440 after 12 months.
• The federal EV tax credits (new and used) do not apply to vehicles acquired after September 30, 2025, so they no longer offset EV purchase prices.
• Owners control mileage, upkeep, price paid, down payment and loan length; they do not control market supply, interest rates or fuel prices.

How depreciation is measured

Depreciation is a difference between two prices, so the answer depends on which prices are compared and over what period. AAA describes it as the difference between a car's purchase price and its resale value, using the actual purchase price. The 2026 study assumes five years and 75,000 miles (15,000 per year) and covers 34 top-selling models in seven categories. It lists a sales-weighted average sticker price (MSRP) of $39,376 and a total of $12,863 per year, of which depreciation is $4,422.

Two cautions apply. AAA states that methodology updates make the 2026 results not directly comparable with the 2025 estimate, and the 2026 categories now include select EVs and hybrids. In the 2025 edition the average depreciation was $4,334 a year (down from $4,680 in 2024) on a $11,577 total. The $4,422 and $4,334 figures therefore should not be read as a trend. Both are averages across popular models; a single vehicle can lose far more or less.

What the BLS price indexes show

The Bureau of Labor Statistics publishes consumer price indexes (CPI) for new vehicles and used cars and trucks. Both series shown are not seasonally adjusted, with 1982-84 equal to 100. The values below were retrieved from the BLS public data API on October 28, 2026; percentage changes are calculated for this article.

These indexes do not measure the depreciation of one car. BLS takes used-vehicle prices from J.D. Power Valuation Services, covers vehicles two to seven years old, refreshes the sample each September so vehicles keep the same age, and adjusts each price for depreciation and mileage. The index is better read as the price level of used vehicles in the market than as a depreciation schedule. The table shows why: used prices rose 43% between January 2021 and July 2022 (149.659 to 213.683), then fell 13.7% by September 2026, so a vehicle's resale value depends heavily on the market it is sold into, not only on its age.

What drives the drop in value

AAA and BLS document the size and measurement of depreciation, not a ranked list of causes. The factors below are the ones the published sources support directly, plus ordinary market logic that is labeled as such.

Price paid and the used-market reference point

Depreciation starts from the price actually paid. Because AAA calculates it from the actual purchase price, the same vehicle bought at a discount or at a premium shows a different loss at resale. Once a car is sold used, buyers compare it with other used cars rather than with a new one, so the first owner sells into a different, lower-priced market than the one they bought in. A dealer that buys a vehicle must also resell it, so a trade-in offer sits below the later asking price. Both points are general market reasoning, not figures from a single dataset, and no source reviewed here ranks them against the other factors.

Mileage

Miles reduce value, but not in a straight line. BLS says that since January 2024 its used-vehicle index adjusts for mileage with an exponential decay curve. In that model, an extra mile on a high-mileage vehicle lowers the price by fewer dollars than an extra mile on a low-mileage one. It is the method BLS uses to adjust index prices, not a published per-mile value for any particular car.

Condition and history

The FTC notes that older age, accidents and damage all lower a vehicle's value. State titling agencies can also apply brands such as junk, salvage or flood, and the federal NMVTIS vehicle history report records brand history, total loss history and salvage history along with the title state and odometer reading. NMVTIS is not meant to include repair histories, which private history providers offer.

Supply, redesigns and incentives

The BLS series above show that used prices can swing widely over a few years. Redesigns and new-vehicle incentives also change what a buyer is comparing against, since BLS treats a model-year changeover as a quality-adjusted price change and collects rebate values among its new-vehicle transaction variables. No published source reviewed for this article gives a dollar effect for either factor on resale value, so none is claimed here.

Depreciation and loan balances

A loan balance falls on a schedule set by the contract, while a vehicle's value falls on the market's schedule. When the value drops faster than the balance, the owner has negative equity: the FTC defines it as owing more on a loan than the car is worth. The FTC adds that some dealers roll the negative equity into the new loan, and that the owner then pays interest on that amount along with the new car's cost. In the CFPB's June 2024 report on loans originated from 2018 to 2022, accounts that financed negative equity had an average loan-to-value ratio of 119.3%, compared with 88.9% for accounts with a positive-equity trade-in and 101.6% for accounts with no trade-in.

Illustrative example. The numbers below are assumed round figures, not market data. A $40,000 vehicle is financed in full for 72 months at 7% APR (taxes, fees and trade-in ignored). The monthly payment is $681.96. For the value path, the example assumes a 20% drop in year one and 10% of the remaining value each year after that. Those rates are assumptions chosen to illustrate the mechanism, not estimates for any model.

payment = P x r / (1 - (1 + r)^-n)
balance(k) = P x (1 + r)^k - payment x ((1 + r)^k - 1) / r
value(year 1) = P x 0.80;  value(year t) = value(year t-1) x 0.90 for t >= 2

• P is the amount financed ($40,000, or $36,000 with a $4,000 down payment).
• r is the monthly rate (7% / 12) and n is the number of payments (72).
• k is the number of payments already made.

In this example the owner is underwater for roughly the first two years, and the gap is largest near the end of year one. With a $4,000 down payment (a $36,000 loan on the same $40,000 vehicle), equity is +$1,004 after 12 months and +$3,169 after 24 months. A longer term or a lower down payment would push the break-even point later, and so would a faster real-world value drop. Over 84 months with no down payment, the same assumptions give equity of -$3,410 after 12 months, -$1,688 after 24 months and +$709 after 36 months. The example shows the mechanism only; actual equity depends on the vehicle, the market and the loan terms.

EV factors and the tax credit

AAA's 2026 release says vehicle type and purchase price both have a significant effect on depreciation for EV shoppers, and that EV medium sedans had about twice the depreciation of gas-powered models. That finding is limited to the study's sample and category and says nothing about other EV body styles.

Battery age is a second EV-specific factor. FuelEconomy.gov reports that a DOE study suggests EV batteries may last 12 to 15 years in moderate climates and 8 to 12 years in severe climates, and that replacing them may be costly if they fail. A used buyer may weigh that cost, but the page does not quantify an effect on resale value.

Federal tax credits are the third factor, and they have ended. For a buyer who claimed one, the net cost was lower than the price paid, so the loss measured from that net cost was smaller; a vehicle acquired after the cutoff has no such offset. The IRS states that the New Clean Vehicle Credit is not available for vehicles acquired after September 30, 2025; a vehicle counts as acquired when a binding written contract is signed and a payment is made, and it must have been acquired on or before that date to qualify even if placed in service later. The Previously-Owned Clean Vehicle Credit carries the same cutoff. For vehicles acquired before the cutoff, the used credit was 30% of the sale price up to $4,000, for a sale price of $25,000 or less, among other conditions that included buyer income limits, purchase from a dealer and a model year at least two years older than the year of sale. State and utility incentives vary and are outside this article.

What an owner can control

Several inputs sit with the owner, and several do not.

• Within the owner's control: the price paid (AAA uses the actual price), the down payment and loan term (which set how fast the balance falls, as the example shows), mileage, maintenance records, and avoiding damage. A title brand such as salvage or flood is recorded in the vehicle's NMVTIS brand history.
• Outside the owner's control: used-vehicle supply and demand (the BLS used index moved from 149.659 in January 2021 to 213.683 in July 2022 and 184.395 in September 2026), market conditions such as fuel prices and interest rates, and the arrival of redesigned models.

AAA also states that its estimates are averages and that actual costs vary by driving habits, location and operating conditions. A single owner's loss can land well above or below the $4,422 average.

Frequently asked questions

Does a rising used-car index mean my car is gaining value?

Not necessarily. BLS moves its sample forward one model year each September and adjusts prices for depreciation and mileage, so the index tracks vehicles of a constant age. A rising index means similar-aged used vehicles cost more than before; an individual car still gets a year older and adds miles. An appraisal, a dealer offer or comparable listings give a price for one specific vehicle.

How common is rolling negative equity into a new loan?

In the CFPB's auto finance data pilot, 11.6% of vehicle loans originated from 2018 to 2022 included negative equity, 32.1% included a positive-equity trade-in and 56.3% had no trade-in. The yearly share ranged from just under 8% in 2022 to just over 17% in 2020. The data come from nine lenders that received CFPB orders, so they describe that dataset rather than every car loan in the country.

Can I compare AAA's 2026 depreciation figure with 2025?

Not directly. AAA says methodology updates make 2026 results not directly comparable with the 2025 estimate, and the 2026 study added select EVs and hybrids to its categories. The published numbers are $4,422 for 2026 and $4,334 for 2025.

Does a vehicle history report show accidents?

Only partly. The federal NMVTIS report covers five items: current state of title and last title date, brand history, odometer reading, total loss history and salvage history. So it shows a vehicle that was declared a total loss or salvaged, but not repair histories, which private history providers offer. The NMVTIS page also strongly encourages an independent vehicle inspection before buying.

What does it mean to roll negative equity into a new loan?

The balance still owed on the old car beyond its trade-in value is added to the new loan. The new loan then covers the new car plus the old shortfall, so the owner pays interest on both. The FTC says a dealer who claims to pay off the old loan but actually rolls the amount into the new one is breaking the law, and consumers can report it at ReportFraud.ftc.gov or to a state attorney general.

A checklist before you buy

1. Before trading in, look up what the current car is worth (the FTC names NADA Guides, Edmunds and Kelley Blue Book) and compare it with the loan payoff, so any negative equity is known before negotiating.
2. Check the installment contract for the down payment and the amount financed, as the FTC advises, so any rolled-in balance is visible.
3. Choose the shortest loan term the budget allows: the FTC notes that a longer term means more interest, and the example above shows it also delays positive equity.
4. Keep service records and avoid accidents; get an NMVTIS report and an independent inspection when buying used.

This article is general education, not financial advice; vehicle values and loan terms vary by vehicle, lender and state.

Sources

• AAA, New Vehicle Ownership Costs Hit $12,863 Annually (Your Driving Costs 2026), September 15, 2026
• AAA, New Vehicle Costs Drop to $11,577 (Your Driving Costs 2025), September 16, 2025
• BLS, CPI new vehicles in U.S. city average (CUUR0000SETA01)
• BLS, CPI used cars and trucks in U.S. city average (CUUR0000SETA02)
• BLS, Measuring Price Change in the CPI: Used Cars and Trucks
• BLS, Measuring Price Change in the CPI: New Vehicles
• IRS, Credits for new clean vehicles purchased in 2023 or after
• IRS, Used Clean Vehicle Credit
• FTC, Auto Trade-Ins and Negative Equity
• CFPB, Negative Equity in Auto Lending (Auto Finance Data Pilot report), June 2024
• DOJ, Understanding an NMVTIS Vehicle History Report
• FuelEconomy.gov, Electric Vehicles