A contractor client of mine bought $320,000 worth of equipment in a single year—a new excavator, two heavy-duty trucks, an enclosed trailer, and a mini skid steer. After we applied Section 179 and bonus depreciation properly, his taxable income dropped by over $270,000. At his combined federal and state effective rate of about 35%, that was roughly $95,000 in tax savings from equipment he needed to buy anyway.
Most contractors know vaguely that they can write off equipment. What they often don't know is how much, how fast, and what rules govern it. Understanding Section 179 and bonus depreciation—and specifically which equipment qualifies, what the vehicle rules are, and how to time purchases—is the single highest-leverage tax strategy available to most contractors. This guide covers it all.
Key Takeaways
- Section 179 lets you deduct up to $1,220,000 in equipment costs in the year of purchase (2025 limit)
- Bonus depreciation is 40% in 2025 — apply it to the remaining basis after Section 179
- Trucks over 6,000 lbs GVWR qualify for full deduction; passenger vehicles do not
- Equipment must be placed in service by December 31 to count for that tax year
- Leasing vs. buying matters — buying generally offers better year-one deductions
- Trade-ins have tax consequences — handle them carefully to maximize your basis
Table of Contents
- What Equipment Qualifies for Contractor Depreciation
- Section 179: The Rules for Contractors
- Bonus Depreciation: The Phaseout Schedule
- The Vehicle Rules: Trucks, Vans, and Luxury Auto Limits
- Timing Your Purchases for Maximum Deductions
- Buying vs. Leasing: The Tax Math
- Real Example: Contractor Buying $300K of Equipment
- Documentation Requirements
What Equipment Qualifies for Contractor Depreciation
For a contractor, the list of qualifying equipment is broad. Section 179 and bonus depreciation apply to most tangible personal property used in your business—meaning any physical asset that isn't a building or land. Here's what typically qualifies:
Heavy Equipment and Machinery
- Excavators and backhoes
- Skid steers and mini excavators
- Cranes and lifts
- Concrete mixers and pumps
- Generators and compressors
- Forklifts and telehandlers
Vehicles (with important rules—see below)
- Work trucks (F-250, F-350, Ram 2500/3500, Silverado 2500/3500) — qualifying GVWR over 6,000 lbs
- Cargo vans and work vans
- Trailers (enclosed, flatbed, equipment)
- Dump trucks
Tools and Equipment
- Power tools (saws, drills, pneumatic equipment)
- Welding equipment
- Laser levels and survey equipment
- Safety equipment and fall protection systems
- Tool boxes and equipment storage
Technology and Software
- Computers, tablets, and smartphones used for business
- Project management software and estimating software
- GPS and tracking systems
- Security camera systems
What doesn't qualify: The land under your shop, the building itself, and personal property used primarily for non-business purposes. You also cannot deduct property you're leasing from someone else (though your lease payments are deductible as business expenses).
Section 179: The Rules for Contractors
Section 179 allows you to deduct the full cost of qualifying equipment in the year you place it in service, rather than depreciating it over 5, 7, or 15 years. For 2025, the key parameters are:
- Maximum deduction: $1,220,000
- Phase-out: The deduction reduces dollar-for-dollar when purchases exceed $3,050,000
- Income limitation: You cannot deduct more than your business's taxable income (unused amounts carry forward)
- Applies to both new and used equipment
- Property must be placed in service during the tax year (not just ordered or paid for)
The income limitation is the critical constraint for most contractors. If you buy $400,000 of equipment but only have $200,000 in taxable income, Section 179 can only give you a $200,000 deduction this year—the remaining $200,000 carries forward. That's where bonus depreciation fills the gap.
The Section 179 election is made on IRS Form 4562, which is filed with your tax return. But the decision to use it—and how much to elect on each asset—needs to happen in Q4 with your tax advisor. The form is just paperwork; the strategy happens in October and November when you still have time to make additional purchases or income-timing moves.
Bonus Depreciation: The Phaseout Schedule
Bonus depreciation (IRC Section 168(k)) allows an additional first-year deduction on qualifying property. Unlike Section 179, bonus depreciation has no income limitation—it can create a net operating loss that carries forward. The phaseout schedule is critical for timing:
| Tax Year | Bonus Depreciation % | Deduction on $100K Equipment |
|---|---|---|
| 2023 | 80% | $80,000 |
| 2024 | 60% | $60,000 |
| 2025 | 40% | $40,000 |
| 2026 | 20% | $20,000 |
| 2027+ | 0% (without new legislation) | $0 |
The optimal strategy is typically to apply Section 179 first (up to your taxable income), then apply bonus depreciation to the remaining basis. This maximizes your year-one deduction while retaining the carryforward flexibility of any NOL created by bonus depreciation. For a full explanation of how these two interact, see our guide on Section 179 vs. bonus depreciation.
The Vehicle Rules: Trucks, Vans, and Luxury Auto Limits
Vehicles are where the rules get complicated—and where most contractors either win big or miss out. The IRS distinguishes between two categories:
Heavy Vehicles (GVWR Over 6,000 lbs): No Luxury Auto Limits
If your work vehicle has a gross vehicle weight rating (GVWR) over 6,000 lbs, it's exempt from the luxury auto limitations. You can deduct the full cost using Section 179 (up to the annual limit) or bonus depreciation. This includes:
- Ford F-250, F-350, F-450 (Super Duty)
- Ram 2500, 3500
- Chevy/GMC Silverado 2500HD, 3500HD
- Most cargo vans and full-size vans
- All commercial trucks, dump trucks, and flatbeds
Passenger Vehicles (GVWR Under 6,000 lbs): Luxury Auto Limits Apply
Standard half-ton pickups (F-150, Ram 1500, Silverado 1500) and most passenger cars/SUVs fall under the luxury auto rules. For 2025, the first-year deduction is capped at approximately $12,400 with bonus depreciation—even if the vehicle cost $55,000. You spread the remaining deduction over 5+ years. This is why the vehicle choice matters so much for contractors.
The Special SUV Rule Under Section 179
SUVs rated over 6,000 lbs GVWR but classified as SUVs (rather than trucks or vans) have a Section 179 sub-limit of $28,900 in 2025. This applies to vehicles like the Chevy Suburban, Ford Expedition, and Ram 1500 Classic (if over 6,000 lbs). Full bonus depreciation still applies without this cap, however.
Timing Your Purchases for Maximum Deductions
Equipment must be placed in service by December 31 to count for that tax year. "Placed in service" means the equipment is ready and available for use—not just ordered or paid for. Here's how to think about timing:
- High income year: Accelerate purchases before December 31 to capture maximum deductions when you're in the highest bracket
- Low income year: Consider delaying purchases until January of the following year if you expect higher income then
- Equipment arriving late December: Ensure it's delivered, placed in service, and documented before year-end—get a delivery receipt with the date
- Bonus depreciation phaseout: With bonus at 40% in 2025 and 20% in 2026, buying in 2025 vs. waiting until 2026 could mean $20,000 more in deductions on a $100,000 purchase
I always run a year-end projection for my contractor clients in October or November. If the projection shows a high income year, we look at what equipment they've been thinking about buying in the next 6 months and see if we can pull those purchases forward to December. The timing flexibility on equipment is one of the few ways you can actively manage your tax bill late in the year. Don't wait until January to make these decisions.
Buying vs. Leasing: The Tax Math
Many contractors ask whether they should buy or lease equipment from a tax perspective. Here's the honest comparison:
Buying
- Eligible for Section 179 and bonus depreciation (large upfront deduction)
- You own the asset—builds equity, no mileage/usage restrictions
- Interest on loans is deductible as a business expense
- Better total tax outcome in most cases for high-income years
Leasing
- Lease payments are fully deductible as business expenses
- No large upfront deduction (only the lease payment for that year)
- Preserves cash flow and avoids large down payments
- Equipment stays current (easier to upgrade at end of term)
- Better option when cash flow is constrained or income is low
Bottom line: For a contractor in a profitable year with high taxable income, buying is almost always better from a pure tax standpoint. The immediate deduction from Section 179 is far more valuable than spreading lease payments over 36 to 60 months. That said, cash flow, credit, and equipment turnover needs all factor in. Work with your advisor to model both scenarios with your specific numbers.
Real Example: Contractor Buying $300K of Equipment
Let's walk through a complete example. A roofing and general contractor with $250,000 in net business income buys the following equipment in 2025:
- Enclosed trailer: $48,000
- Mini excavator: $95,000
- Ford F-350 (GVWR 11,500 lbs): $78,000
- Skid steer: $62,000
- Tools and compressors: $17,000
- Total: $300,000
Tax Strategy
- Apply Section 179 to $250,000 (income cap) across the highest-value assets
- Apply 40% bonus depreciation to remaining $50,000 basis = $20,000 additional deduction
- Remaining $30,000 depreciated over 5–7 years under standard MACRS
- Total year-one deduction: $270,000
- Tax savings at 35% combined rate: approximately $94,500
Without this planning, the same contractor using straight-line depreciation would have deducted approximately $43,000 in year one. The difference in tax savings: over $80,000 in year one alone. For more on contractor tax deductions beyond just equipment, see our comprehensive guide.
Documentation Requirements
The IRS expects proper documentation to support these deductions. For each piece of equipment, keep:
- Purchase receipt or invoice showing the purchase price and date
- Proof of payment (bank statement, canceled check, or financing document)
- Placed-in-service date (delivery receipt, photos with timestamps, or written documentation)
- Business use percentage — if a vehicle is used for both business and personal, you can only deduct the business-use portion; mileage logs are required
- Serial numbers or VINs for vehicles and major equipment
Keeping clean, organized records isn't just good practice—it's what allows you to claim these deductions with confidence and defend them if you're ever audited. For guidance on maintaining audit-ready records, see our guide to audit-proof bookkeeping habits. And for the broader picture of how these deductions fit into a complete contractor tax strategy, explore all 23 contractor tax deductions you should be claiming.
Frequently Asked Questions
What equipment can contractors deduct using Section 179?
Most tangible personal property used in business qualifies, including heavy equipment (excavators, skid steers, cranes), trucks over 6,000 lbs GVWR, trailers, tools, computers, and software. The 2025 limit is $1,220,000.
Can a contractor deduct a new truck using Section 179?
Yes, if the truck weighs over 6,000 lbs GVWR (gross vehicle weight rating). Trucks like the Ford F-250, Ram 2500, and Chevy Silverado 2500 qualify for full Section 179 or bonus depreciation. Passenger vehicles under 6,000 lbs are subject to luxury auto limits of approximately $12,400 in year one.
Should contractors buy or lease equipment for tax purposes?
Buying equipment typically provides better tax deductions via Section 179 and bonus depreciation. Leasing payments are deductible, but you can't take a large upfront deduction. Buying is usually preferable if you have taxable income to offset and want the maximum year-one deduction.
The Bottom Line
A contractor who buys $300,000 of qualifying equipment this year and uses Section 179 and bonus depreciation strategically can deduct a significant portion—or all of it—in year one. The difference between knowing these rules and not knowing them is often $50,000 to $100,000 in tax savings on a single equipment cycle.
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