Tax Guide for Electricians, Plumbers & Contractors: Section 179, Deductions & Quarterly Taxes (2026)
By TraxGig Team · June 25, 2026 · 11 min read
Electricians, plumbers, HVAC techs, carpenters, and general contractors who work as subcontractors or run their own crews face a tax situation that is genuinely different from a salaried tradesperson on a company payroll. You buy your own tools, drive your own truck, carry your own insurance — and the tax code gives you real deductions in exchange for those costs. Here is how to use them.
The question to settle first: are you actually self-employed?
Trade work has one of the highest rates of worker misclassification in the U.S. economy. Whether you are truly an independent contractor or should legally be a W-2 employee depends on who controls the work — not what your contract says.
| Factor | Points toward contractor | Points toward employee |
|---|---|---|
| Tools & equipment | You supply your own | Company supplies them |
| Schedule | You set your own hours | Company sets your shift |
| Multiple clients | You work for several companies | You work for one exclusively |
| Payment | Per job or invoice | Hourly wage with withholding |
| Direction | You decide how the job gets done | Supervisor directs your work |
If most of your situation points to "employee" but you're being paid on a 1099, you may be misclassified — which matters because you are paying both halves of Social Security and Medicare tax that an employer would otherwise split with you. If this describes you, it is worth discussing with a tax professional or checking IRS Form SS-8 guidance.
The two taxes on your net profit
As a self-employed tradesperson, you owe ordinary income tax on your net profit, plus self-employment tax of 15.3% covering Social Security and Medicare — a tax a W-2 tradesperson never sees directly because their employer covers half of it.
Set aside roughly 25–30% of your net income for taxes. Contractors with heavy equipment purchases in a given year often see this percentage swing lower thanks to Section 179 — more on that below.
Section 179: the biggest deduction most tradespeople underuse
Normally, when you buy expensive equipment, you have to depreciate it — deducting a portion of the cost every year over its useful life. Section 179 of the tax code lets you instead deduct the full purchase price of qualifying tools, equipment, and some vehicles in the year you buy them, up to an annual limit that Congress adjusts periodically (check the current-year limit on IRS Form 4562 before filing). For a contractor who buys a $6,000 set of power tools or a work van, this can mean the entire cost comes off this year's taxable income instead of trickling out over five or seven years.
- Applies to tools, equipment, and machinery used more than 50% for business.
- Work trucks and vans have special rules — heavier vehicles (over 6,000 lbs. gross vehicle weight) are often treated more favorably than passenger cars.
- You must have enough business profit to use the deduction against — it cannot create a loss on its own in most cases.
The rest of a tradesperson's deduction list
- Materials and job-site supplies — but only the portion you pay for yourself and are not directly reimbursed for by the client or general contractor.
- Vehicle expenses. Either the standard mileage rate or actual expenses (fuel, maintenance, insurance, depreciation) for the business-use percentage of your truck.
- Licensing and bonding. State trade licenses, contractor bonds, and required permits are deductible business costs.
- Liability and tool insurance. Coverage that protects your work and equipment.
- Safety gear and required uniforms. Hard hats, steel-toe boots, high-visibility vests, and branded workwear qualify when they are required for the job and not suitable for everyday wear — a pair of plain jeans generally does not qualify, but flame-resistant coveralls typically do.
- Subcontractor payments. If you hire helpers or subs, what you pay them is a deductible expense (and may require you to issue your own 1099-NEC forms if you pay someone $600 or more in a year).
Quarterly estimated taxes
Because nothing is withheld from job payments, the IRS expects estimated payments four times a year:
| Quarter | Income period | Payment due |
|---|---|---|
| Q1 | Jan 1 – Mar 31 | April 15 |
| Q2 | Apr 1 – May 31 | June 15 |
| Q3 | Jun 1 – Aug 31 | September 15 |
| Q4 | Sep 1 – Dec 31 | January 15 (next year) |
Contractors with lumpy, seasonal income (heavy in summer, light in winter) sometimes qualify to pay unevenly across quarters using the annualized income method on Form 2210 — worth a conversation with a tax preparer if your income swings widely by season.
A simple system for tradespeople
- Log every job's income the day you're paid.
- Track tools/equipment, materials, and vehicle expenses in separate categories — these are your three largest deductions.
- Keep receipts for any purchase you plan to run through Section 179.
- Set aside 25–30% of net profit for taxes as you earn.
- Pay quarterly estimates on time to avoid penalties.
TraxGig's Trades & Tools category is built for exactly this — tools and equipment, job materials, licensing, and safety gear are tracked separately so your Schedule C reflects the real cost of running your trade. Start tracking free.
The bottom line
Self-employed tradespeople carry real business costs — tools, trucks, materials, licensing — and the tax code gives real deductions in return, especially through Section 179. Confirm you are correctly classified, track your equipment and materials separately, and pay quarterly so April brings no surprises.
Related reading
- How Much Should Self-Employed Workers Set Aside for Taxes?
- Rental Property Taxes: The Complete Deduction Guide
This article is for general educational purposes and is not tax advice. Worker classification and Section 179 limits change and are fact-specific — consult a qualified tax professional and current IRS guidance for your situation.