The Part After the Write-Off Everyone Talks About
The equipment financing guide already covers Section 179 and how the financing structure you choose determines whether you can claim it at all. Quick version for anyone landing here first: Section 179 lets you deduct the full cost of qualifying equipment in the year you buy it, up to $2,560,000 for 2026, and 100% bonus depreciation, made permanent for property placed in service after January 19, 2025, can cover whatever Section 179 doesn’t.
What that piece doesn’t cover, and what actually trips people up, is everything that happens around that write-off. Vehicles get their own separate, more restrictive rules. There’s a real, defensible case for not taking the biggest possible deduction right away. And the depreciation you claim today isn’t free forever, it can come back as a real tax bill the year you sell or trade in the equipment.
Short version: Section 179 and bonus depreciation can fully expense most equipment in year one, but vehicles have their own caps depending on weight and body style, and full-year expensing isn’t automatically the smartest move if this year’s income is low or next year’s looks a lot higher. Also worth knowing before it surprises you: depreciation you claim today generally gets taxed back as ordinary income if you sell the equipment later for more than its remaining tax basis.
Section 179 vs. Bonus Depreciation: The One Difference That Actually Decides Which You Use
Both let you deduct the full cost of qualifying property immediately instead of spreading it over several years. The real difference between them is what happens when your income is low.
Section 179 is capped at your business’s taxable income for the year, it can reduce your tax bill to zero, but it can’t push you into a loss. Buy $50,000 of equipment in a year your business only cleared $30,000, and you’re limited to a $30,000 Section 179 deduction, the remaining $20,000 carries forward indefinitely until a future year has enough income to absorb it.
Bonus depreciation has no such limit. It can create or deepen an actual business loss, which becomes a net operating loss that carries forward and offsets future income. In a strong year, this distinction rarely matters, you’re using both together anyway, Section 179 first on whichever specific assets you want to control, bonus depreciation mopping up the rest. In a genuinely slow year, it matters a lot, bonus depreciation is the tool that still works when Section 179 has run out of income to offset.
The Vehicle Caps That Have Nothing to Do With the Rules Above
Here’s where a lot of general depreciation advice falls apart the moment it touches a work truck, because vehicles play by a separate, more restrictive rulebook, and it comes down almost entirely to one number: gross vehicle weight rating (GVWR), printed on a sticker inside the driver’s door.
Under 6,000 lbs GVWR: you’re in “luxury auto” territory under Section 280F, regardless of what the vehicle actually is or what it costs. For 2026, total first-year depreciation, Section 179 and bonus depreciation combined, is capped at roughly $20,300, with the rest of the cost depreciated in small annual chunks over the following several years. A $75,000 SUV built on a lighter platform depreciates barely faster than a $35,000 one.
6,001 to 14,000 lbs GVWR, classified as an SUV: Section 179 alone is capped at $32,000 for 2026. But bonus depreciation isn’t subject to that cap, it applies to whatever basis is left after the $32,000, with no ceiling. In practice, for 2026, that means a $75,000 heavy SUV can generally still be fully expensed at the federal level: $32,000 through Section 179, the remaining $43,000 through 100% bonus depreciation.
Over 14,000 lbs, or a work configuration that doesn’t count as an SUV (a pickup with a bed at least 6 feet long that isn’t easily accessible from the cab, a cargo van with no seating behind the driver, anything seating more than nine): none of the vehicle-specific caps apply at all. You’re just under the general Section 179 and bonus depreciation rules covered above, same as any other business equipment.
So for 2026 specifically, the practical gap between a heavy SUV and a true work truck of the same price has narrowed at the federal level, both can typically be fully expensed in year one. Where the vehicle classification still genuinely matters:
- State taxes. A lot of states don’t conform to 100% federal bonus depreciation, some cap it, some don’t allow it at all. Section 179 sees broader (though not universal) state conformity. That means the SUV’s $32,000 Section 179 cap can end up being the real, binding limit on your state return even when the federal return lets you expense the whole thing.
- If you deliberately don’t take bonus depreciation. You can elect out of it if you’d rather spread deductions across future years (more on why below). Do that, and the SUV cap becomes the actual ceiling, since it applies to Section 179 regardless of what you do with bonus depreciation.
- Under 6,000 lbs is still a real wall no matter what. That one hasn’t changed. If minimizing the vehicle’s tax hit matters to the purchase decision, the GVWR threshold, not “SUV vs. truck” as a general category, is the number worth checking on the door sticker before you sign anything.
When Taking the Full Deduction Right Away Isn’t Actually the Smart Move
Full expensing in year one feels like the obviously correct choice, and often it is. But a dollar of deduction isn’t worth the same amount in every year, it’s worth whatever your marginal tax rate is that year, and that’s exactly why timing is worth a second thought before defaulting to the biggest possible write-off.
A slow year, one where income is already low, is often the wrong year to burn a big deduction. The tax savings from a deduction taken while you’re in a low bracket are smaller than the savings from the same deduction taken in a year you’re in a higher one. If a major purchase can reasonably wait, or if you have flexibility in when a piece of equipment gets “placed in service” (the date that actually controls the deduction year, not the purchase date), pushing it into a stronger income year can be worth more than the immediate write-off.
This is also exactly where electing out of bonus depreciation becomes a real option, not just a theoretical one. Bonus depreciation applies automatically unless you actively opt out of it, by asset class, on your return. Businesses with genuinely seasonal or lumpy income sometimes do this on purpose, take Section 179 (which you control asset-by-asset regardless) but skip bonus depreciation on a given purchase, letting regular depreciation spread the rest of the deduction across the next several years instead of front-loading it all into a year where the tax savings are worth less.
The Bill Nobody Mentions: Depreciation Recapture
This is the part that catches people off guard, sometimes years after they’ve stopped thinking about the original purchase at all. Depreciation isn’t free money, it’s mostly a timing benefit. When you eventually sell or trade in equipment you’ve depreciated, any amount you sell it for above its remaining tax basis generally gets recaptured, taxed back as ordinary income in the year of the sale, up to the total amount of depreciation you originally claimed.
Here’s what that looks like in practice. Say a plumbing business buys a $60,000 service van and fully expenses it through Section 179 and bonus depreciation, the tax basis drops to $0 immediately. Three years later, the van gets traded in for $35,000 toward a newer one. Since the basis is already $0, the entire $35,000 counts as recapture, taxed as ordinary income that year, on top of whatever else the business earned. It’s not a penalty and it’s not a mistake, it’s the other half of the deal you made when you took the full deduction upfront. The problem is only that a lot of people don’t know it’s coming, and it can land as a real, unplanned addition to that year’s tax bill, worth factoring into quarterly estimated tax planning for the year a trade-in or sale actually happens. The Quarterly Tax Estimator can help you see how a recapture year shifts what you owe before it catches you off guard.
Regular Depreciation: What Happens If You Don’t Take the Full Write-Off
If you don’t elect Section 179 and opt out of bonus depreciation, or the asset doesn’t qualify for either, the cost gets spread out under MACRS (Modified Accelerated Cost Recovery System) instead. Most vehicles, tools, and computer equipment fall into a 5-year recovery period; most other business machinery and equipment falls into 7 years. The deduction isn’t a flat straight line either, MACRS front-loads more of the deduction into the earlier years using IRS-set percentage tables, so it still recovers cost faster than a simple even split would, just nowhere near as fast as expensing the whole thing in year one.
Putting It Together
For most tradespeople, the default sequence still makes sense: Section 179 on the assets you want deliberate control over, bonus depreciation covering the rest, full expensing in year one.
Where it’s worth pausing is a genuinely low-income year, a vehicle purchase where the GVWR sticker matters more than the marketing, or any purchase where you can already see the trade-in or resale coming down the road. None of this changes the financing decision itself, it changes how you think about the tax side once the equipment’s already yours.
One more place this shows up later: if a house is somewhere in your future, a mortgage lender qualifies you on net income after these same deductions, not gross revenue, but depreciation specifically can sometimes get added back into that number since it never actually left your bank account. Mortgage preapproval covers how that works and what else changes when you’re self-employed.
Frequently Asked Questions
Section 179 is capped at your business’s taxable income for the year and can’t create a loss, though unused amounts carry forward indefinitely. Bonus depreciation has no income limit and can create or deepen a business loss. In most profitable years they’re used together; in a slow year, bonus depreciation is the one that still works.
Less than it used to, now that bonus depreciation is permanently back to 100%. A heavy SUV (6,001-14,000 lbs GVWR) is capped at $32,000 under Section 179 for 2026, but bonus depreciation with no cap generally covers the rest, so both a heavy SUV and a true work truck can often be fully expensed at the federal level. The gap still matters for state taxes, though, since many states don’t conform to full bonus depreciation.
Yes. A deduction is worth more in a year you’re in a higher tax bracket than in a low-income year. If this year is unusually slow, or you expect meaningfully more income soon, electing out of bonus depreciation on a given purchase and letting regular depreciation spread the deduction across future years can be worth more than front-loading it all now.
When you sell or trade in equipment you’ve depreciated, any amount you receive above its remaining tax basis generally gets taxed back as ordinary income in the year of the sale, up to the total depreciation you claimed. If you fully expensed a vehicle or piece of equipment, its basis is $0, so the entire sale or trade-in value can be recaptured. It’s worth planning for in the year a sale or trade-in actually happens.
Yes, but it’s subject to the stricter luxury auto limits under Section 280F rather than the SUV-specific cap, roughly $20,300 in total first-year depreciation for 2026, combining Section 179 and bonus depreciation together, with the rest spread out over several more years.
The cost is spread out under MACRS instead, typically 5 years for vehicles, tools, and computers, or 7 years for most other business equipment. It front-loads more of the deduction into earlier years than a flat straight-line split would, just far more gradually than expensing the full cost in year one.
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