You just bought a skid steer for $48,000. Your accountant asks: "Section 179 or MACRS?" You ask: "Can't I just expense the whole thing?" Your accountant sighs.
This conversation happens in thousands of construction and manufacturing companies every month. Equipment depreciation seems straightforward — until you need to make an actual decision. That's when the thresholds, rates, and exceptions start piling up.
This article is a practical guide to depreciating tools and equipment. No accounting jargon, but plenty of tables, dollar amounts, and real examples.
When is equipment a fixed asset?
For a piece of equipment to be classified as a fixed asset (depreciable property), it must meet all four conditions:
- You own it (or it's financed — not leased operationally)
- You use it in your business
- It has a useful life of more than one year
- It wears out, decays, or gets used up
There's no minimum dollar amount in the IRS definition. Technically, a $200 drill could be a fixed asset if it lasts more than a year. But in practice, the de minimis safe harbor rule changes everything.
The de minimis safe harbor — your best friend
Under IRS regulations, you can elect to expense items costing $2,500 or less per invoice (or per item) immediately — no depreciation required. If you have an applicable financial statement (audited), the threshold jumps to $5,000.
This means most hand tools, power tools, and small equipment never touch your depreciation schedule. You expense them in the year of purchase and move on.
Above $2,500 (or $5,000 with AFS) — you need to either depreciate or use Section 179 / bonus depreciation.
Bought a bundle of 10 power tools on one invoice for $4,000, but each tool cost $400? Each one falls under the de minimis threshold individually. You expense them all. The invoice total doesn't matter — the per-unit cost does.
Depreciation methods — your three options
Option 1: MACRS (the default)
The Modified Accelerated Cost Recovery System is the standard IRS depreciation method. Equipment gets assigned a recovery period based on its asset class:
| Equipment type | Asset class | Recovery period |
|---|---|---|
| Construction equipment (excavators, loaders, dozers) | 15.0 | 5 years |
| Forklifts | 15.0 | 5 years |
| Light trucks (under 13,000 lbs) | 00.22 | 5 years |
| Heavy trucks (over 13,000 lbs) | 00.22 | 5 years |
| Office furniture & equipment | 00.11 | 7 years |
| Manufacturing machinery | 20.1–20.5 | 7 years |
| Scaffolding | 15.0 | 5 years |
| Welding equipment | 15.0 | 5 years |
| Power tools (if capitalized) | 15.0 | 5 years |
| Air compressors (stationary) | 15.0 | 7 years |
| Nonresidential buildings | — | 39 years |
MACRS uses an accelerated method (200% declining balance for most equipment), so you get larger deductions in the early years and smaller ones later.
Example: Excavator purchased for $120,000, 5-year recovery period. Year 1: $24,000 (20%). Year 2: $38,400 (32%). Year 3: $23,040 (19.2%). And so on.
Option 2: Section 179 (immediate expensing)
Section 179 lets you deduct the full purchase price of qualifying equipment in the year you buy it — instead of spreading it over 5–7 years.
2025 limits:
- Maximum deduction: $1,220,000 per year
- Phase-out threshold: begins at $3,050,000 in total equipment purchases
- Applies to: new AND used equipment
That $48,000 skid steer? You can deduct it entirely in Year 1. The $120,000 excavator? Same thing.
Who qualifies: Any business that buys or finances (not operationally lease) qualifying equipment. There's no "small business" restriction — the phase-out threshold is generous enough for most contractors.
What qualifies: Tangible personal property used in business — machinery, equipment, vehicles (with limitations), tools, computers. Does NOT include buildings or land.
A $120,000 excavator with standard MACRS gives you a $24,000 deduction in Year 1. Section 179 gives you $120,000. At a 24% tax rate, that's a difference of $23,040 in tax savings — cash in your pocket right now instead of spread over five years.
Option 3: Bonus depreciation (phasing out)
Bonus depreciation allows you to deduct a percentage of the cost in Year 1, on top of regular depreciation. But it's being phased down:
| Year placed in service | Bonus depreciation % |
|---|---|
| 2022 and earlier | 100% |
| 2023 | 80% |
| 2024 | 60% |
| 2025 | 40% |
| 2026 | 20% |
| 2027+ | 0% |
Key difference from Section 179: Bonus depreciation has no annual dollar limit. If you buy $5 million in equipment, you can apply bonus depreciation to the entire amount. Section 179 caps at ~$1.2M.
Key difference #2: Bonus depreciation can create a net operating loss (NOL). Section 179 is limited to your taxable income — you can't use it to create a loss.
For most small to mid-size contractors, Section 179 is simpler and more useful. Bonus depreciation matters more for companies making very large capital purchases.
Passenger vehicles — the exception that bites
Cars and light SUVs have special depreciation limits, even with Section 179:
| Vehicle type | Section 179 limit (2025) | First-year MACRS + bonus |
|---|---|---|
| Passenger automobiles (< 6,000 lbs GVWR) | $12,400 (Year 1 cap) | Capped at ~$20,400 with bonus |
| SUVs (> 6,000 lbs, < 14,000 lbs GVWR) | $28,900 | Full Section 179 up to $28,900 |
| Trucks/vans > 14,000 lbs GVWR | Full Section 179 | No limitation |
That $65,000 Ford F-250 (over 6,000 lbs GVWR)? You can likely deduct the full amount under Section 179. A $45,000 sedan for your project manager? Capped at around $20,400 in Year 1.
Depreciation vs. operational tracking — they're not the same
This is the most common misunderstanding. Tax depreciation and operational equipment tracking serve completely different purposes.
Tax depreciation answers: how do I spread the cost of this purchase over time for tax purposes?
Operational tracking answers: where is my equipment, who has it, does it work, and when does it need service?
A $1,800 rotary hammer won't hit your depreciation schedule (under the de minimis threshold — you expense it immediately). But if it disappears from a jobsite, that's still $1,800 gone. That's why tracking low-value equipment matters just as much as depreciating the expensive stuff.
Companies that only do depreciation (because they have to) but skip operational tracking (because they "don't have to") — lose far more on missing equipment than they save by avoiding a tracking system.
Five common depreciation mistakes
1. Wrong asset classification
A forklift is not "office equipment" (7-year life). It's "construction/manufacturing equipment" (5-year life). Getting the asset class wrong means wrong depreciation rates for years — and potential issues during an audit.
At $120,000, the difference between 5-year and 7-year recovery is $10,000+ per year in deduction timing.
2. Ghost assets
Equipment scrapped three years ago but still on your fixed asset register — still depreciating. Or the reverse: equipment in active use for two years but never added to the books.
Regular inventory audits catch both problems.
3. Repair vs. improvement
Replacing the engine in your excavator — is that a repair (expense it now) or an improvement (add to the asset's basis and depreciate)? Under IRS rules, if the expense prolongs the useful life, adapts it to a new use, or materially increases its value — it's an improvement.
The line is blurry. Discuss with your CPA before the work, not after.
4. Forgetting about used equipment rules
Bought a used backhoe? Section 179 applies to both new and used equipment (since the Tax Cuts and Jobs Act of 2017). Many contractors don't realize this and default to slow MACRS depreciation on used purchases, missing out on immediate deductions.
5. Mixing up leases
With an operating lease, you don't depreciate — lease payments are a business expense. With a capital lease (or finance lease under ASC 842), you do depreciate. Mixing up the two creates accounting headaches that compound year after year.
Decision table — how to handle a new purchase
Just bought equipment and not sure what to do? Follow this path:
| Cost | Useful life | What to do |
|---|---|---|
| ≤ $2,500 ($5,000 with AFS) | Any | Expense immediately (de minimis safe harbor) |
| $2,501 – $1,220,000 | > 1 year | Section 179 (full deduction in Year 1) or MACRS |
| > $1,220,000 | > 1 year | Bonus depreciation (40% in 2025) + MACRS for the rest |
| Any vehicle < 6,000 lbs | > 1 year | Subject to luxury auto limits — check caps |
Simple in theory. In practice — run every major purchase by your CPA first, because asset classification and your specific tax situation matter.
How much do you actually save with smart depreciation?
Let's calculate for a small construction company that purchases in one year:
- Excavator: $120,000
- 5 power tools at $2,000 each: $10,000
- Scaffolding system: $18,000
Scenario A — no optimization (standard MACRS): Year 1 deduction: $24,000 (excavator at 20%) + $10,000 (tools expensed) + $3,600 (scaffolding at 20%) = $37,600
Scenario B — Section 179 on everything: Year 1 deduction: $120,000 + $10,000 + $18,000 = $148,000
Difference: $110,400 more deduction in Year 1. At a 24% tax rate, that's $26,496 in tax savings immediately.
That cash can go straight into your next equipment purchase. Or into a system that helps you not lose the equipment you already have.
Bottom line
Depreciation isn't just a bookkeeping chore — it's a tax optimization tool. Three things to remember:
The de minimis threshold ($2,500) keeps small tools off your depreciation schedule entirely. Below it — expense and move on.
Section 179 lets most contractors deduct up to $1.22 million in equipment purchases immediately. If you qualify — use it.
Operational tracking is not the same as depreciation. Even if a $2,000 tool never hits your fixed asset register, it's still worth knowing where it is and who has it. Because lost equipment costs the same whether you depreciated it or expensed it.
