The short answer
Yes, a business can deduct the business-use share of a heavy SUV’s cost in the first year, but mostly not for the reason the videos give. Since Public Law 119-21, 100% bonus depreciation is permanent for property acquired and placed in service after January 19, 2025, so a qualifying vehicle placed in service in 2026 can be fully expensed without relying on section 179.1,2,10 The vehicle must be heavy enough to fall outside the passenger-auto caps (for trucks and vans, including truck-based SUVs, a gross vehicle weight rating above 6,000 pounds), be used more than 50% for business, be placed in service, not just ordered, by December 31, and be backed by records.3,5,8
For vehicles acquired after January 19, 2025, December 31 only decides which year’s return gets the deduction. The same 100% rate applies in 2027, when the section 179 cap for heavy SUVs rises from $32,000 to $33,100.1,2,4,6
| Item | 2026 | 2027 |
|---|---|---|
| Bonus depreciation rate, property acquired and placed in service after Jan. 19, 20251,2,10 | 100% | 100% |
| Section 179 overall limit4,6 | $2,560,000 | $2,640,000 |
| Section 179 phase-out begins4,6 | $4,090,000 | $4,230,000 |
| Section 179 cap on heavy SUVs (over 6,000 lbs, up to 14,000 lbs GVWR)4,6 | $32,000 | $33,100 |
| First-year cap, passenger autos 6,000 lbs or less, with bonus11 | $20,300 | Not yet published |
| Minimum business use for section 179 or bonus1,3 | More than 50% | More than 50% |
What’s true about the “G-Wagon loophole”?
The rule behind the meme is real. Section 280F caps annual depreciation on a “passenger automobile,” and for trucks and vans that term covers only vehicles rated at 6,000 pounds gross vehicle weight or less.3 A vehicle above the line escapes those caps. For a passenger car placed in service in 2026, first-year depreciation including bonus is capped at $20,300; a qualifying heavy vehicle has no such cap.11
What changed in 2025 is bonus depreciation. Public Law 119-21 made the 100% rate permanent for property acquired after January 19, 2025, ending a phase-down that had scheduled 40% for 2025.1,2,10 Bonus applies to whatever basis is left after any section 179 deduction,5 and unlike section 179 it isn’t limited to your business taxable income.1,7 Used vehicles qualify too, as long as you didn’t use the vehicle before and the purchase meets the other acquisition rules, such as not buying it from a related party.1
What the videos leave out
Only the business share is deductible
Section 179 and bonus depreciation apply only to the business-use percentage of the cost. At 70% business use, 30% of the price is never deductible.5 Driving from home to your regular place of business is commuting, which is personal use no matter how far it is.12
Business use must exceed 50%, every year
A vehicle is listed property. If qualified business use is 50% or less in the first year, neither section 179 nor bonus is available, and the vehicle is depreciated under the slower alternative depreciation system.1,3 If business use falls to 50% or less in a later year, the excess of what you deducted over what the slower method would have allowed is added back to income that year.3,5
You need records
No deduction is allowed for listed property unless you substantiate business use with adequate records or sufficient evidence corroborating your own statement.8 The regulations don’t require a daily log, but a record made at or near the time of each trip, showing date, mileage and business purpose, carries a high degree of credibility. A reconstruction in April doesn’t.9
“Placed in service” means delivered and ready
Ordering, signing or paying by December 31 isn’t enough. You place property in service when it is ready and available for its specific use.5 A vehicle delivered on January 4, 2027 is a 2027 deduction.
Leases don’t qualify
If you lease, you can’t take depreciation or section 179. You deduct the business share of the lease payments, or use the standard mileage rate, instead. If the vehicle is a passenger automobile worth more than $62,000 at the start of a 2026 lease, you also include a small inclusion amount in income each year.5,11,12
Whether a particular model qualifies is a fact question
For trucks and vans, the 6,000-pound test uses gross vehicle weight rating, the loaded rating printed on the door-jamb label; for other vehicles the statute uses unloaded gross vehicle weight.3 The IRS has said in an information letter that an SUV built on a truck chassis is treated as a truck, but information letters aren’t binding authority.18 Confirm the rating and the chassis before you buy, not after.
Section 179 or bonus depreciation?
For heavy SUVs, section 179 is limited to $32,000 for 2026 by a separate cap in section 179(b)(5).4,7 That cap doesn’t limit the first-year total, because bonus depreciation covers the rest. Section 179 is still useful when you want to choose a specific amount, since bonus applies to every asset in a property class unless you elect out for the whole class.1
The SUV cap doesn’t reach every heavy vehicle. Section 179(b)(5) excludes vehicles that seat more than nine people behind the driver’s seat; vehicles with an open cargo area at least six feet long (or one designed to be open but enclosed by a cap) that isn’t readily accessible from the passenger compartment; and vehicles with an integral enclosure fully enclosing the driver compartment and load-carrying area, no seating behind the driver and no body section protruding more than 30 inches ahead of the windshield.7 Many full-size pickups with a six-foot bed fall into the second group, which is why trucks dominate most “section 179 vehicle” lists.
Worked example: a $90,000 SUV at 80% business use
Assume a vehicle rated above 6,000 pounds GVWR and built on a truck chassis, bought and delivered in December 2026, used 80% for business with records to prove it, by a calendar-year business with more than $32,000 of business income. It’s the only asset the business places in service in 2026.
| Step | Amount |
|---|---|
| Purchase price | $90,000 |
| Business-use basis ($90,000 × 80%) | $72,000 |
| Personal share, never deductible | $18,000 |
| Option A: 100% bonus depreciation | $72,000 |
| Option B: section 179 (capped at $32,000), then bonus on the remaining $40,000 | $72,000 |
| Option C: elect out of bonus, no section 179 (5-year MACRS, mid-quarter convention, 5.00%) | $3,600 |
| Federal tax saved under Option A at an illustrative 37% rate | $26,640 |
Option C uses the mid-quarter convention because more than 40% of the year’s depreciable basis was placed in service in the last quarter.5 The 37% rate is illustrative; self-employment tax, the qualified business income deduction and state tax all change the real number. The deduction saves tax on money spent. It doesn’t make the vehicle free: after the $26,640 of federal tax saved, the vehicle still costs about $63,360.
Two later-year consequences belong in the same model:
- If business use falls to 45% in 2027, the recapture is the $72,000 deducted minus the $1,800 the alternative depreciation system would have allowed for 2026 (2.5% under the mid-quarter table), or $70,200 of ordinary income in 2027.3,5
- If you sell in 2029 for $60,000 with business use still above 50%, the business share of the price is $48,000 against a basis of zero, and the full $48,000 is ordinary income under section 1245.14 Trading it in doesn’t defer that gain: like-kind exchanges have been limited to real property since 2018.19
Other traps worth knowing
- No standard mileage rate later. Once you claim section 179, bonus or accelerated depreciation on a vehicle, you can’t switch that vehicle to the standard mileage rate.13
- Company-owned, personally driven. When a corporation owns the vehicle, the owner’s personal use is a taxable fringe benefit that belongs in wages unless the owner reimburses the company.15
- State add-backs. Indiana caps its own section 179 allowance at $25,000 and requires bonus depreciation to be added back and recovered in later years; in the example above, the 2026 Indiana add-back under Option A would be $68,400.16 California doesn’t follow federal bonus depreciation and also caps section 179 at $25,000.17
- Old contracts. A vehicle under a written binding contract signed before January 20, 2025 stays on the old phase-down schedule: 20% bonus if placed in service in 2026 and none after that. For those buyers, December 31 is a real cutoff.10,11
Should you buy before December 31?
Only if the business needs the vehicle, and only if the 2026 return is where the deduction is worth the most. For vehicles acquired after January 19, 2025, 100% bonus depreciation continues in 2027, so December 31 is a timing choice, not a last chance.1,10 A business expecting a higher marginal rate in 2027 may be better off taking delivery in January. A business that buys a vehicle it doesn’t need to save 37 cents on the dollar has still spent the other 63.
Before you sign, confirm the vehicle’s GVWR and classification, project the business-use percentage you can document for the next five years, and run the purchase through your 2026 projection. Our dealership page covers the same rules from the seller’s side of the desk.