Vehicle depreciation is one of the largest tax deductions available to self-employed individuals and business owners who use a car, truck, or van for work. If you use the actual expense method to deduct vehicle costs, depreciation allows you to write off the cost of the vehicle itself over several years, recovering a significant portion of what you paid.
Understanding how car depreciation works under the 2026 tax rules helps you plan vehicle purchases strategically and maximize your deductions.
How Vehicle Depreciation Works
When you buy a vehicle for business use, the IRS does not allow you to deduct the full purchase price in a single year (with some exceptions). Instead, you recover the cost over the vehicle’s useful life through annual depreciation deductions.
The IRS considers the useful life of a passenger vehicle to be five years under the Modified Accelerated Cost Recovery System (MACRS). However, the annual deduction is subject to luxury vehicle limits that cap how much you can write off each year for passenger automobiles.
Depreciation only applies if you use the actual expense method for your vehicle deduction. If you use the standard mileage rate (72.5 cents per mile for 2026), depreciation is already built into the rate and cannot be claimed separately.
For a comparison of these two methods, see our article on the standard mileage rate vs actual expenses.
2026 Luxury Vehicle Depreciation Limits
The IRS sets annual caps on depreciation for passenger vehicles. For vehicles placed in service in 2026, the limits are approximately:
- Year 1: $12,200 (or $20,200 with bonus depreciation)
- Year 2: $19,500
- Year 3: $11,700
- Year 4 and beyond: $6,960 per year until fully depreciated
These limits apply to the business-use portion of the vehicle. If you use your car 80 percent for business, multiply the limit by 0.80 to determine your actual deduction.
The year-one limit is significantly higher when bonus depreciation is available. However, bonus depreciation is phasing down. For 2026, the bonus depreciation rate is 20 percent, down from 40 percent in 2025. For more details on bonus depreciation, see our guide on bonus depreciation for vehicles in 2026.
Heavy Vehicles: The SUV and Truck Exception
Vehicles with a gross vehicle weight rating (GVWR) over 6,000 pounds are not subject to the luxury vehicle depreciation limits. This includes many full-size SUVs, pickup trucks, and cargo vans commonly used by businesses.
For these heavy vehicles, you can use Section 179 to deduct up to $30,500 in the first year (for SUVs) or the full purchase price for vehicles that are not considered SUVs, such as pickup trucks with a bed length of six feet or more. MACRS depreciation on the remaining balance follows the standard five-year schedule without the luxury caps.
This is why many business owners specifically choose vehicles over 6,000 pounds GVWR. The first-year deduction can be dramatically larger. For a list of qualifying vehicles, check our guide on the Section 179 vehicle list for 2026.
MACRS Depreciation Schedule
Under MACRS, passenger vehicles are depreciated over five years using either the 200-percent declining balance method or the straight-line method. Most taxpayers use the accelerated method because it produces larger deductions in the early years.
The MACRS percentages for a five-year property (assuming half-year convention) are:
- Year 1: 20%
- Year 2: 32%
- Year 3: 19.2%
- Year 4: 11.52%
- Year 5: 11.52%
- Year 6: 5.76%
For a vehicle costing $50,000 with 100 percent business use, the MACRS schedule would produce a year-one deduction of $10,000 (20% of $50,000). However, this is subject to the luxury vehicle limits, so the actual deduction might be capped at $12,200.
Section 179 Expensing for Vehicles
Section 179 allows businesses to deduct the full purchase price of qualifying equipment, including vehicles, in the year of purchase rather than depreciating over multiple years.
For 2026, the Section 179 deduction limit is $1,250,000 for all qualifying equipment. However, the SUV limitation caps the Section 179 deduction for sport utility vehicles at $30,500. Vehicles that do not qualify as SUVs (such as large pickup trucks and cargo vans) can be fully expensed up to the general Section 179 limit.
To use Section 179, the vehicle must be used more than 50 percent for business. If business use drops below 50 percent in any year during the recovery period, you may have to recapture some of the deduction.
Business-Use Percentage
The depreciation deduction is limited to the business-use portion of the vehicle. If you use a car 75 percent for business and 25 percent for personal driving, only 75 percent of the depreciation is deductible.
Tracking your business-use percentage requires a mileage log that documents both business and personal miles throughout the year. The IRS calculates the percentage as business miles divided by total miles driven during the tax year.
This is one reason accurate mileage tracking matters even if you use the actual expense method. You need the business-use percentage to calculate depreciation, fuel, insurance, and every other actual vehicle expense.
Choosing Between the Standard Mileage Rate and Depreciation
The standard mileage rate includes a built-in depreciation component. For 2026, the depreciation component embedded in the 72.5-cent rate is approximately 31 cents per mile. If you switch from the standard mileage rate to the actual expense method in a later year, you must reduce the vehicle’s depreciable basis by the depreciation amount that was built into the standard rate.
In general, the actual expense method with depreciation produces a larger deduction for newer, more expensive vehicles and vehicles with high business-use percentages. The standard mileage rate tends to favor older vehicles with lower operating costs or vehicles driven a very high number of miles.
Tracking Mileage for Depreciation Purposes
Whether you choose the standard mileage rate or the actual expense method, you need accurate mileage records. Tripbook makes it easy to track every business and personal trip automatically, calculate your business-use percentage, and generate the documentation you need for depreciation deductions and IRS compliance.
