How Much Can You Depreciate a Car for Business? 2026 IRS Limits
For 2026, the IRS lets you depreciate a business car up to $20,300 in the first year if you use bonus depreciation, or $12,300 without it — then $19,800, $11,900, and $7,160 in each year after that, per IRC Section 280F.
Quick Answer
For 2026, the IRS caps first-year business car depreciation at $20,300 if you claim bonus depreciation, or $12,300 if you don’t. After year one, the limit drops to $19,800 in year two, $11,900 in year three, and $7,160 for every year after that until the car is fully depreciated. These “luxury auto” caps under IRC Section 280F apply to any car, SUV, van, or light truck with a gross vehicle weight of 6,000 lbs or less — they exist even though most business vehicles cost far less than what most people would call “luxury.”
These limits catch a lot of business owners off guard, because they apply to nearly every car, SUV, and light truck used for work — not just expensive ones. A $28,000 pickup and a $95,000 luxury sedan hit the exact same annual cap if both weigh 6,000 lbs or less. Heavier SUVs and trucks play by different, more generous rules under Section 179, which we’ll break down below.
This guide walks through how vehicle depreciation actually works under IRS rules, the real 2026 dollar limits, when Section 179 and bonus depreciation change the math, and the record-keeping the IRS expects you to have if your deduction is ever questioned.
How Business Vehicle Depreciation Actually Works
When you buy a car for your business, you generally can’t deduct the full purchase price the year you buy it. Instead, the IRS treats the car as a depreciable business asset that loses value over time, and you deduct a portion of that cost each year through depreciation. For tax purposes, a car placed in service is 5-year property under the Modified Accelerated Cost Recovery System (MACRS), which normally uses a 200% declining-balance method that front-loads larger deductions into the early years, then switches to straight-line for the remaining years.
There’s a catch that trips up a lot of new business owners: vehicles are also subject to the Section 280F “luxury automobile” limits, which cap how much depreciation you can claim in any given year regardless of what the MACRS tables say. These caps apply to passenger vehicles — including cars, SUVs, and light trucks — with a gross vehicle weight rating (GVWR) of 6,000 lbs or less. Heavier vehicles are exempt from these specific caps, which is why so many small businesses lease or buy full-size trucks and SUVs instead of sedans when they want a bigger first-year write-off.
2026 IRS Depreciation Limits for Business Cars
The IRS adjusts the Section 280F dollar limits for inflation every year. Rev. Proc. 2026-15 sets the following limits for passenger automobiles (cars, SUVs, and light trucks at or under 6,000 lbs GVWR) placed in service during 2026:
| Tax Year | With Bonus Depreciation | Without Bonus Depreciation |
|---|---|---|
| Year 1 | $20,300 | $12,300 |
| Year 2 | $19,800 | $19,800 |
| Year 3 | $11,900 | $11,900 |
| Year 4 and later | $7,160 per year | $7,160 per year |
Notice that years 2 through 4+ are identical whether or not you claim bonus depreciation — the only year bonus depreciation changes the cap is the first year. These figures rise slightly almost every year with inflation; for comparison, the 2025 first-year limit was $20,200 with bonus depreciation and $12,200 without it, so the 2026 numbers are each $100 higher.
Because these are annual caps, not a total lifetime cap, a $45,000 car that qualifies for the full $20,300 first-year deduction still has roughly $24,700 of basis left to depreciate in future years — it just can’t all come out in year one. That’s the part of “luxury auto” depreciation that surprises the most business owners: even a modestly priced vehicle is fully subject to these caps if it’s a car, SUV, or light truck at 6,000 lbs GVWR or under.
Section 179 and Bonus Depreciation for Business Vehicles
Two other provisions can accelerate your deduction, but both interact with the weight of the vehicle:
- Light vehicles (6,000 lbs GVWR or less): Section 179 expensing is still subject to the Section 280F caps above, so a Section 179 election on a sedan or small crossover doesn’t get you past the $20,300 first-year limit.
- Heavy SUVs and trucks (over 6,000 lbs, up to 14,000 lbs GVWR): These qualify for up to $32,000 of Section 179 expensing in 2026 (an increase over the 2025 limit of $31,300), and any remaining cost above that can typically be covered by 100% bonus depreciation with no dollar cap.
- Vehicles over 14,000 lbs GVWR (many full-size cargo vans and larger work trucks): These generally fall outside the 280F passenger-automobile rules entirely and can often be fully expensed in year one using Section 179 and bonus depreciation together, subject to the overall Section 179 limits below.
For 2026, the overall Section 179 deduction limit for all qualifying business property is $2,560,000, with the deduction phasing out dollar-for-dollar once total qualifying purchases exceed $4,090,000. Bonus depreciation itself is 100% for 2026 — the One Big Beautiful Bill Act, signed into law in July 2025, permanently restored 100% bonus depreciation for qualifying property acquired and placed in service after January 19, 2025, after it had been scheduled to phase down toward zero under earlier law.
As an example: a business that buys a $90,000 heavy SUV (over 6,000 lbs GVWR, primarily used for business) can generally combine the $32,000 Section 179 limit with 100% bonus depreciation on the remaining $58,000 of basis to deduct the full purchase price in the first year — something a passenger car at the same price could never do because of the $20,300 cap.
How Business-Use Percentage Affects Your Deduction
None of the limits above apply to the full value of a vehicle used for both business and personal driving — they apply to the business-use portion only. If you drive a car 70% of its total mileage for business, you can depreciate 70% of its cost basis (subject to the caps above), not the full amount. Drop below 50% business use and you lose access to accelerated MACRS depreciation and Section 179 entirely; you’re limited to straight-line depreciation over the vehicle’s full class life instead.
The IRS determines business-use percentage from your actual mileage log, not an estimate. Accurate records of every business trip — date, destination, purpose, and miles driven — are what substantiate that percentage if your return is ever examined.
Standard Mileage Rate vs. Depreciating the Actual Vehicle
Depreciation is only available if you use the actual expense method, where you track and deduct the real costs of owning and running the vehicle: depreciation, gas, insurance, repairs, and lease payments, each multiplied by your business-use percentage. Note that depreciation itself only applies if you own the vehicle — leased business vehicles follow different rules and deduct lease payments instead. The alternative is the standard mileage rate, where you simply multiply your business miles by a flat per-mile rate set by the IRS and skip tracking individual expenses — including depreciation, since it’s already baked into the rate.
For 2026, the standard mileage rate for business driving is 72.5 cents per mile for travel from January 1 through June 30, rising to 76 cents per mile from July 1 through December 31 — a rare midyear increase the IRS made in response to rising fuel costs. Whichever method you choose in the first year a vehicle is used for business generally locks in some future flexibility (or restrictions), so it’s worth running the numbers both ways, or having a tax professional do it, before you file.
Record-Keeping the IRS Expects
Vehicle expenses fall under the IRS’s stricter substantiation rules (IRC Section 274(d)), which means a rough end-of-year estimate isn’t enough. For every vehicle you depreciate, keep:
- A mileage log recorded at or near the time of each trip — date, starting and ending odometer readings or total miles, destination, and business purpose.
- Purchase documents showing the vehicle’s cost, including sales tax, title, and registration fees, which factor into its depreciable basis.
- Receipts for gas, repairs, insurance, and any other costs you deduct if you use the actual expense method.
- A record of the date the vehicle was placed in service and the business-use percentage each year, since it can change year to year.
A simple spreadsheet or dedicated mileage-tracking app satisfies these requirements as long as entries are made close to when the trip actually happened, not reconstructed months later from memory.
Common Mistakes That Cause Problems With the IRS
- Assuming Section 179 removes the luxury auto cap. It doesn’t, for cars and light trucks at 6,000 lbs GVWR or under — the Section 280F limits still apply even with a Section 179 election.
- Reconstructing a mileage log after the fact. The IRS specifically looks for contemporaneous records; a log written from memory during an audit carries far less weight and can result in the entire vehicle deduction being disallowed.
- Switching methods without checking the rules first. Moving between the standard mileage rate and the actual expense (depreciation) method has restrictions, especially after you’ve claimed accelerated depreciation or a Section 179 deduction on a vehicle.
- Forgetting that business-use percentage under 50% blocks accelerated depreciation. Dropping under that threshold in a later year can also trigger “recapture,” where you have to report some of the earlier accelerated depreciation as income.
- Not weighing the vehicle before assuming a deduction amount. GVWR, not the vehicle’s sticker price or curb weight, determines whether the tighter passenger-automobile caps or the more generous heavy-vehicle rules apply.
Bottom Line
For most cars and light SUVs or trucks bought for business use in 2026, expect a first-year depreciation deduction capped at $20,300 with bonus depreciation (or $12,300 without it), followed by $19,800, $11,900, and $7,160 in the years after. Vehicles over 6,000 lbs GVWR play by a different, more generous set of rules under Section 179 and bonus depreciation. Because the correct method and the correct cap depend on the vehicle’s weight, its business-use percentage, and how it was financed, it’s worth confirming the exact numbers with a tax professional before you file — especially in a year you buy a new vehicle.
Frequently Asked Questions
How Much Can You Write Off for Vehicle Depreciation in 2026?
For 2026, the IRS caps first-year depreciation on a business car, SUV, or light truck (6,000 lbs GVWR or less) at $20,300 if you claim bonus depreciation, or $12,300 if you don’t. The limit then drops to $19,800 in year two, $11,900 in year three, and $7,160 for every year after that, per IRC Section 280F and Rev. Proc. 2026-15. Heavier vehicles are not subject to these specific caps.
How Do You Calculate Car Depreciation for a Business Vehicle?
Start with the vehicle’s depreciable basis (purchase price plus taxes and fees, minus any trade-in or rebate), then apply it to the 5-year MACRS depreciation schedule using the 200% declining-balance method, capped each year by the Section 280F dollar limits. Multiply the result by your business-use percentage, based on your mileage log, to get the deductible amount.
Can You Fully Depreciate a Car for Business in One Year?
Only in limited cases. A passenger car or light SUV/truck at 6,000 lbs GVWR or under is capped at $20,300 in year one even with bonus depreciation and Section 179, so it can’t be fully expensed unless its cost is at or below that limit. A heavier vehicle (over 6,000 lbs GVWR) used more than 50% for business can often be fully depreciated in year one by combining the Section 179 heavy-vehicle limit ($32,000 for 2026) with 100% bonus depreciation on the remainder.
How Much of a Car Can You Write Off If You Use It Partly for Business?
You can depreciate the business-use percentage of the vehicle’s cost, based on your actual mileage log. If you use the car 60% for business, you can depreciate 60% of its depreciable basis, subject to the annual Section 280F caps. Business use under 50% blocks accelerated (MACRS/Section 179) depreciation, limiting you to straight-line depreciation instead.
Should I Use the Standard Mileage Rate or Depreciate My Business Car?
It depends on the vehicle’s cost, how many miles you drive, and how long you plan to keep it. The standard mileage rate (72.5 cents per mile for the first half of 2026, 76 cents per mile from July 1 onward) already includes depreciation and skips separate expense tracking, while the actual expense method lets you deduct real depreciation, gas, insurance, and repairs individually. Higher-cost vehicles and high-mileage business use often favor actual expenses; lower-cost, lower-mileage use often favors the standard rate.
Do Section 179 Vehicle Limits Apply to Trucks and SUVs?
Yes, but the limits differ by weight. Cars and light SUVs/trucks at 6,000 lbs GVWR or under remain subject to the Section 280F luxury auto caps even with a Section 179 election. Heavier SUVs and trucks (over 6,000 lbs up to 14,000 lbs GVWR) get a separate, larger Section 179 limit of $32,000 for 2026, and vehicles over 14,000 lbs GVWR generally fall outside the passenger-automobile limits altogether.
