Ownership
Car depreciation explained: the cost most drivers forget
Depreciation does not appear as a monthly bill, but it can be one of the largest costs of owning a vehicle.
Depreciation is a real cost even though you never receive a bill for it
Depreciation is the loss in a vehicle's market value while you own it. If a vehicle is purchased for one amount and later sold for less, the difference is value that disappeared during the ownership period.
Because there is no monthly invoice labelled depreciation, it is easy to ignore. But when two vehicles are compared over several years, depreciation can be larger than fuel, maintenance or even interest.
Over five years, that is an average of $2,000 per year or about $167 per month in value loss.
Why depreciation matters when comparing cars
Two vehicles can have similar payments and operating costs but very different resale values. A vehicle that loses $15,000 in value costs more to own than one that loses $8,000, all else being equal.
This is especially important when comparing a new car with a lightly used car. The new vehicle may provide warranty coverage and lower repair risk, but it can also absorb a larger amount of early depreciation.
What affects resale value
Age and mileage are major factors, but they are not the only ones. Condition, accident history, reliability reputation, supply, demand, trim level and market conditions can all affect what buyers are willing to pay later.
A clean, well-maintained vehicle with strong demand may hold value better than a less desirable model. However, resale value is never guaranteed, which is why depreciation estimates should be treated as estimates rather than exact predictions.
Depreciation can change the answer even when monthly costs look similar
Suppose Car A costs $760 per month to operate and Car B costs $800. At first glance, Car A looks cheaper by $40 per month. But if Car A loses $12,000 in value over five years while Car B loses $7,000, Car A gives up an additional $5,000 in resale value.
That extra depreciation is equivalent to roughly $83 per month over five years. Once it is included, the apparent $40 monthly advantage disappears.
A small operating-cost advantage can be completely erased by weaker resale value.
Estimate depreciation realistically
The best estimate is usually based on what comparable vehicles are currently worth at different ages and mileages. Avoid assuming that a vehicle will keep an unusually high percentage of its value without evidence.
For a planning tool, even a rough future-value estimate is better than treating depreciation as zero. It forces the comparison to include the value of the asset being consumed over time.
Keep the example in perspective
The examples in this guide are simplified illustrations. Taxes, loan terms, interest rates, insurance, fuel prices, maintenance and vehicle values vary. Use the examples to understand the idea, then enter your own numbers into DriveMath before making a decision.
Try it yourself
Use your own numbers.
A calculator is most useful when you replace sample values with the real price, rate, distance and costs that apply to you.