How Is a Vehicle Used for Business Depreciated?
A vehicle used for business loses value every year it’s driven, and the tax code lets that loss be recovered gradually, but with more restrictions than most other business equipment.
The short answer
When a vehicle is used for business and the actual expense method is chosen, its cost is generally recovered over time through depreciation rather than deducted all at once. Passenger vehicles face special annual limits that cap how much depreciation can be claimed each year, regardless of the vehicle’s price, and the deductible amount is further scaled down by the percentage of the vehicle’s use that’s actually for business.
Why passenger vehicles get special limits
Ordinary business equipment is generally depreciated based on its cost and a useful-life schedule, but separate, lower annual caps exist specifically for passenger automobiles, since vehicles are so easily used for both business and personal purposes and were historically a common target for inflated deductions. These caps, often called luxury-auto limits even though they apply well below what most people think of as luxury pricing, restrict the depreciation deduction to a set-by-the-government dollar amount each year regardless of how expensive the vehicle actually was.
How business-use percentage changes the number
Depreciation on a vehicle used for both business and personal driving is only available for the portion attributable to business use. A vehicle driven mostly for personal errands with occasional business trips generates a much smaller depreciation deduction than the same vehicle used almost entirely for business, even though the vehicle’s cost and the applicable caps are identical. This percentage is generally based on mileage records, which makes keeping a mileage log important under this method just as it is under the standard mileage alternative.
What happens with heavier vehicles
Some vehicles, generally larger trucks and SUVs above a certain weight threshold, are exempt from the passenger-vehicle luxury limits and instead follow the depreciation rules that apply to other business equipment, which can allow for substantially larger deductions, including accelerated first-year options in some cases. This distinction is one reason vehicle depreciation rules can feel inconsistent from one situation to the next: the vehicle’s classification, not just its cost, determines which set of limits applies.
Depreciation and later resale
Depreciation deducted over the years a vehicle is used for business reduces its tax basis, which matters if the vehicle is later sold or traded in. A vehicle that’s been heavily depreciated can generate a taxable gain on sale if it’s sold for more than its reduced basis, something that catches people off guard when they assume a vehicle can only ever create a loss. How that sale is ultimately reported also depends partly on how the underlying business is structured, and the depreciation figures themselves generally flow through to whatever tax return the business files for the year.
The bottom line
Depreciating a business vehicle is rarely as simple as spreading its price evenly over several years. Between the passenger-vehicle caps, the business-use percentage, and the different rules for heavier vehicles, the topic rewards careful recordkeeping and periodic review, especially since the applicable dollar caps are set by the government and adjusted over time.