If you're thinking about buying a vehicle to cut your 2026 taxes, here's my rule: buy it because the business needs it. The tax code can pay for a big share of a vehicle you were going to buy anyway. It can't turn a purchase you don't need into a good one.
If you do need one, 2026 is a good year to buy. With 100% bonus depreciation now permanent, the right vehicle can be written off in full this year. The wrong one is capped at about $20,000. The difference mostly comes down to weight.
Two things, both by December 31, 2026:
Signing the paperwork isn't enough on its own. Legally, the vehicle only has to be ready and available for business use, but the easiest proof is a business trip before the year ends, written in your mileage log.
Two more rules apply to every option below:
The vehicles that get the big deduction are trucks, SUVs, and vans with a gross vehicle weight rating (GVWR) over 6,000 pounds. GVWR is the manufacturer's maximum loaded weight, and it's printed on the sticker inside the driver's door. Check it there before you buy. Don't rely on the salesperson or a website list.
Here's how 2026 treats each type, for the business-use share of the cost:
| Vehicle (GVWR over 6,000 lbs) | What you can write off in 2026 |
|---|---|
| SUV, crossover, or minivan | 100% bonus, or Section 179 up to $32,000 |
| Pickup with a bed at least 6 feet long | 100% bonus, or Section 179 up to $2.56 million |
| Pickup with a shorter bed | 100% bonus, or Section 179 up to $32,000 |
| Cargo van with no seats behind the driver | 100% bonus, or Section 179 up to $2.56 million |
| Passenger van seating more than 9 behind the driver | 100% bonus, or Section 179 up to $2.56 million |
Bonus depreciation is the route most owners use. It applies automatically unless you elect out, works on new and used vehicles, and has no dollar cap. Section 179 is an election you make, and for SUVs it's capped at $32,000 in 2026. It also can't be more than your business income for the year (wages count if you're an individual), and anything over that carries forward. Bonus depreciation can create a loss, though whether you can use that loss this year depends on other limits.
The bed rule for pickups is specific: the cargo area has to be at least 6 feet long inside and not reachable from the cab. A shorter bed makes the truck an SUV for this purpose. The cargo van rule is specific too. The driver's area has to be fully enclosed, there can be no seating behind the driver, and the front of the van can't stick out more than 30 inches ahead of the windshield.
Example. On December 18, 2026, your business buys an SUV with a GVWR of 6,500 pounds for $78,000. You drive it 80% for business, so the business share of the cost is $62,400. With bonus depreciation, you deduct all $62,400 on your 2026 return.
Sometimes a full write-off isn't the best move. Maybe 2026 is a low-income year, or you'd rather spread the deduction over years when your bracket is higher.
You can elect out of bonus depreciation and use Section 179 for part of the cost instead. In the example above, you could take $32,000 under Section 179 and depreciate the other $30,400 on the five-year schedule. Because the SUV went into service in December, the mid-quarter convention will often apply (more on that below), which gives you about $33,520 in 2026. If it doesn't apply, you'd get about $38,080.
One catch: electing out of bonus depreciation applies to the whole class of property you placed in service that year, not just the vehicle. Five-year property includes computers and some equipment, so check what else you bought before you elect out.
Cars, and trucks, SUVs, and vans with a GVWR of 6,000 pounds or less, are "passenger automobiles" under the tax code. Their depreciation is capped each year, no matter what they cost. For vehicles placed in service in 2026:
| Year | With bonus | Without bonus |
|---|---|---|
| 1st year | $20,300 | $12,300 |
| 2nd year | $19,800 | $19,800 |
| 3rd year | $11,900 | $11,900 |
| Each year after | $7,160 | $7,160 |
The cap is multiplied by your business-use percentage, so at 80% business use, the first-year limit is $16,240.
A heavy car avoids the cap only if its unloaded weight is over 6,000 pounds, and very few cars sold today weigh that much.
The mid-quarter convention. If more than 40% of the cost of the equipment and vehicles you place in service in 2026 goes into service in October, November, or December, the IRS makes you use the mid-quarter convention for all of it. Anything placed in service in the last quarter then gets only a sliver of its regular first-year depreciation. Bonus depreciation isn't affected, but a vehicle you write off with bonus still counts toward the 40%, so a December SUV can push your other purchases into the mid-quarter convention. Section 179 amounts don't count toward the 40%, so expensing some fourth-quarter purchases can keep you under it.
You give up the mileage rate. Once you depreciate a vehicle under the regular rules, whether through bonus depreciation, Section 179, or regular depreciation, you can never switch that vehicle to the standard mileage rate. You'll track actual costs for as long as you own it.
California is different. California doesn't allow bonus depreciation, and its Section 179 limit is $25,000. A vehicle you write off in full on your federal return gets a much smaller California deduction in 2026, and the rest comes over the following years.
Selling it later. When you sell or trade in a vehicle you've written off, the depreciation you took generally comes back as ordinary income, up to your gain. Trade-ins no longer defer that. Plan for it if you replace vehicles every few years.
Electric vehicles. The federal clean vehicle credits ended for vehicles acquired after September 30, 2025. An EV bought now is depreciated like any other vehicle, by weight class.
Equipment and other year-end moves are in the year-end tax moves checklist, and the current limits are in Section 179 limits for 2026. If you already drive your own car for the business, see converting a personal vehicle to business use.
Before you sign anything at the dealership, book a free strategy call. We'll check which option saves you the most, and whether this is the right year to buy.
To your ongoing success,
Laura
Trucks, SUVs, and vans with a gross vehicle weight rating over 6,000 pounds, used more than 50% for business and placed in service by December 31, 2026. With 100% bonus depreciation, you can deduct the business share of the cost this year.
No. $32,000 is the 2026 Section 179 limit for SUVs. Bonus depreciation has no dollar limit, so a qualifying heavy SUV can still be written off in full.
Yes. Bonus depreciation applies to used vehicles too, as long as you didn't own that vehicle before and you didn't buy it from a related party.
Only if it's placed in service that day. Own it, have it ready for business use, and drive it on a business trip before the year ends.
No. Once you depreciate a vehicle under the regular rules, including bonus depreciation or Section 179, you have to use actual costs for that vehicle from then on.
This is general information, not tax or legal advice. Whether a purchase makes sense depends on your business, how the vehicle is used, your state, and your income this year and next. Talk to your tax advisor before you buy.
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