EQUIPMENT AND TAX

SECTION 179 EQUIPMENT DEDUCTION.

QUICK ANSWER

Section 179 allows construction businesses to immediately expense the full cost of qualifying equipment in the year of purchase rather than depreciating it over its useful life. For a subcontractor buying $300K of equipment, the difference between Section 179 and straight line depreciation is potentially $270K in additional deductions in year one. The same election also takes that $300K off reported equity, which is what your surety underwrites off.

The tax saving is the easy half of the decision. The other half is that the same election cuts reported net income and equity by the full purchase price, and equity is what a surety underwrites your bonding program off. So the election that lowers this April's tax bill can also lower the size of job you're allowed to bid next year. Neither extreme is the answer. How big the election should be has to be set against the tax bill and the bonding program together, before the return gets filed.

BY JOSH LUEBKERPublished 2026-08-06Updated 2026-10-27
THE DEFINITION

WHAT IT MEANS.

Section 179 is an election that lets a business deduct the full purchase price of qualifying equipment placed in service during the tax year, up to an annual limit, instead of depreciating it over its useful life.

Section 179 allows businesses to deduct the full purchase price of qualifying equipment placed in service during the tax year, up to an annual limit, currently $1.16 million for 2024 and phasing out above $2.89 million in total qualifying purchases. Qualifying equipment covers most tangible personal property used in the business, including excavators, trucks, trailers, generators, and tools. The deduction can't exceed your business taxable income for the year, which is the limit that catches contractors who buy heavy in a soft year.

WHAT WE SEE IN THIS BUSINESS

WHERE THE TAX WIN COSTS YOU.

01

You're depreciating equipment you could have expensed

Most construction companies depreciate equipment over 5 to 7 years by default, because that's what the bookkeeper set up and nobody questioned it since. Section 179 and bonus depreciation both offer a way to pull those deductions into the year of purchase. If your CPA hasn't looked at Section 179 strategy against your specific equipment purchases, you may be paying more tax than you owe.

02

Section 179 affects your financial statements and your bonding

Immediately expensing a $300K equipment purchase under Section 179 reduces net income by $300K in year one. That reduction flows to the balance sheet as lower retained earnings and lower equity. Lower equity can impair your bonding capacity, so the tax saving works against the financial profile your surety needs to see. That conflict is the coordination problem between tax strategy and bonding management.

03

Bonus depreciation phase down is changing the math

Bonus depreciation allowed 100 percent first year expensing for several years, and it has been stepping down since. It was 80 percent in 2023, 60 percent in 2024, and it continues to phase down from there. A strategy built when bonus depreciation was 100 percent isn't the same strategy that works today, so if your equipment depreciation approach hasn't been reviewed since 2022, it may be operating on rules that have already changed.

THE MATH

WHAT IT LOOKS LIKE IN DOLLARS.

The election, in dollars

$300K of qualifying equipment expensed under Section 179 produces potentially $270K in additional deductions in year one against straight line depreciation. The same $300K comes off net income and off equity in that same year. The annual limit is $1.16 million for 2024, and it phases out above $2.89 million in total qualifying purchases, so a heavy fleet year can reach the ceiling before the tax plan does.

HOW SPM FIXES IT

HOW THE ELECTION GETS SIZED.

The tax against bonding coordination challenge

Taking full Section 179 in the year of purchase maximizes the tax saving and minimizes reported net income and equity, which is what affects bonding capacity. Taking none of it maximizes reported income and equity, which supports the bonding program and leaves you a bigger current year tax bill. The right election usually falls somewhere between the two extremes, and where it falls depends on your tax position and what your bonding program has to support next year. SPM and your CPA handle that coordination together rather than each solving for one side of it.

Equipment depreciation tracked in the books year round

SPM maintains your equipment depreciation schedule in ControlQore all year, not at tax time. Your balance sheet holds equipment values that agree with the depreciation method you chose. When your CPA reviews the schedule at year end it's clean, current, and formatted for tax preparation, so the Section 179 election gets made with the full financial statement impact in front of you rather than as an afterthought in March.

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Built for subs doing $1M to $12M. Above $12.5M we quote.

Last 12 months revenueCoreStrategicPlatinumOne-time onboarding
Under $1M$1,900$3,100$3,300$1,000
$1M to $3.5M$2,600$4,100$5,300$1,500
$3.5M to $6.5M$3,800$5,900$8,300$3,000
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$9.5M to $12.5M$6,100$8,900$14,900$6,000
Above $12.5MQuotedQuotedQuotedQuoted

The onboarding fee covers migrating your books back to the start of your last taxable year and getting you fully operational in 60 days. It's billed once, with your first invoice. It's the same for all three tiers, and it moves with your revenue band. Your first month is prorated, and your monthly engagement starts on the first of the first full month.

The three tier columns are the whole price. Which one fits depends on how much of the work you want off your desk. No payroll. No hidden line items. The onboarding fee is right here in the table.

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Core

CFO work. Your own bookkeeper keeps doing the books.

You stop guessing.

You get the CFO work. Job costing built against the way you estimate, a 13 week cash forecast, monthly WIP, and a meeting every month that ends in decisions and never in a report.

Your bookkeeper still does the books.

Strategic

Core, plus bookkeeping and bank reconciliations, plus job costing and WIP software set up and managed for you. Use your own online accounting software or we supply it, one price.

Every job shows its margin while it is still open.

Everything in Core, plus the bookkeeping and bank reconciliations done for you, and the job costing and WIP software set up, loaded with your cost codes, and managed every month. Use your own online software, or move to ours and we cover it.

A bookkeeper we choose does the books and reconciliations. No payroll.

Platinum

Strategic, plus a controller who handles payables and receivables the way an in-house controller would. You approve every payment.

You approve, and the money side gets handled.

Everything in Strategic, plus a controller we choose who handles your bills and receivables for you the way an in-house controller would. They call vendors, pay the bills and keep the accounting current. We plan the cash flow first, and you approve every payment because it is your money.

A controller we choose does the payables and receivables. No payroll, no pay applications, no collections.

COMMON QUESTIONS

FREQUENTLY ASKED.

Yes, Section 179 applies to both new and used qualifying equipment. The equipment has to be new to you, meaning your business bought it rather than moving it over from personal use, and it has to be placed in service during the tax year. Used equipment bought from an unrelated party qualifies for Section 179 the same way new equipment does.

Section 179 is an elective deduction limited to business taxable income, so you can't use it to create a loss. Bonus depreciation has no income limitation, so it can create or increase a net operating loss that rolls forward to future years. For most construction businesses, Section 179 goes first up to the income limitation, then bonus depreciation applies to whatever qualifying purchases are left.

Three tiers, and which one you are in depends on how much of the work you want off your desk. Core is where you stop guessing: job costing built against the way you estimate, a 13 week cash forecast, monthly WIP, and a monthly meeting that ends in decisions, while your bookkeeper keeps doing the books. Strategic is where every job shows its margin while it is still open: a bookkeeper we choose does the books and the bank reconciliations, and the job costing and WIP software is set up and managed for you, on your own online software or ours. Platinum is where you approve and the money side gets handled: a controller we choose handles your bills and receivables the way an in-house controller would, and you approve every payment. No payroll. No scope gaps.

Sixty days. We migrate your books back to the start of your last taxable year and build your job costing structure from scratch, and on Strategic and Platinum we set up the job costing and WIP software too. Fully operational in two months. The onboarding fee is one time, the same for every tier, and set by your revenue band.
WHAT THIS TIES INTO
Josh Luebker, SPM The Construction CFO
Josh Luebker
FRACTIONAL CFO · SPM THE CONSTRUCTION CFO

Josh Luebker is a master electrician turned construction CFO, president of SPM The Construction CFO and author of CONTROL: C.F.O.S. Construction Financial Operating System.

WHAT WOULD FULL SECTION 179 DO TO YOUR EQUITY?

Josh spends twenty minutes asking about your equipment buys, how you've handled the deduction, and what your surety reads afterward. There's no pitch and no proposal. If he sees a way to help, the two of you set a longer second call.

You don't hire a CFO because it's safe, you do it because the real risk isn't having one.
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