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 2026-08-07
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 running on rules that have already changed.

THE ARITHMETIC

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 run into 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 sits somewhere between the two extremes, and where it sits depends on your tax position and what your bonding program has to support next year. SPM and your CPA run 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 carries 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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Last 12 months revenueMonthly fee
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$1M to $3.5M$2,600 to $3,900
$3.5M to $6.5M$3,800 to $5,700
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$9.5M to $12.5M$6,100 to $8,500
$12.5M to $15.5M$7,400 to $11,000
$15.5M to $18.5M$9,400 to $13,500
$18.5M+Quoted individually

Range reflects the three tiers below. Which one you're in depends on how much of the work you want off your desk. No payroll. No hidden line items.

Core

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 rather than a report.

Your bookkeeper keeps doing the books.

Executive

You stop touching the books.

Everything in Core, and we run the bookkeeping and the controllership as well. Nobody in your office is answering coding questions or chasing a reconciliation at month end.

We do the books. No payroll.

Strategic

Every job shows its margin while it's still running.

Everything in Executive, plus the job costing and WIP platform set up, loaded with your cost codes, and managed for you every month. You never have to learn it.

We do the job costing.

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 carries 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. Executive is where you stop touching the books, because we run the bookkeeping and the controllership as well. Strategic is where every job shows its margin while it is still running, because the job costing and WIP platform is set up and managed for you. No payroll. No scope gaps.
Sixty days. We migrate your books back to the start of your last taxable year, set up ControlQore, and build your job costing structure from scratch. Fully operational in two months.
WHAT THIS TIES INTO
Josh Luebker, The Construction CFO
Josh Luebker
FRACTIONAL CFO · THE CONSTRUCTION CFO

Former commercial project manager and master electrician: 150+ projects worth $2.1B combined, from $50,000 to $300M. Now fractional CFO to commercial subcontractors.

WHAT WOULD FULL SECTION 179 DO TO YOUR EQUITY?

Bring your last balance sheet and your equipment list. We will show you what the full election does to equity and what your surety is likely to do about it.

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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