Section 125 for Skilled Trades Contractors: The Payroll Tax Savings Most HVAC, Electrical, and Plumbing Owners Miss

If you run a small to mid-size trades business - HVAC, electrical, plumbing, roofing, or any service-based contracting shop - you already know the hiring market is brutal. Good technicians are hard to find, harder to keep, and the moment a competitor offers something your team doesn’t have, you’re back to square one posting on Indeed.

But there’s another number that doesn’t get talked about nearly enough in the trades: the payroll taxes you’re overpaying on every single paycheck, every single week, because your employees are paying for their own health expenses with after-tax dollars.

That’s money your business is sending to the IRS that you don’t have to.

This article breaks down exactly how Section 125 cafeteria plans work for skilled trades contractors, what the math looks like for a typical HVAC or plumbing shop, and why this matters when turnover is killing your margins and you’re running on thin project-based revenue.

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What Is Section 125 and Why Should a Trades Contractor Care?

Section 125 of the Internal Revenue Code lets employees pay for qualified benefits - health insurance premiums, medical FSA contributions, dependent care expenses - with pre-tax dollars instead of after-tax dollars. When an employee’s taxable wages go down, so does the employer’s matching FICA tax bill.

That’s it. That’s the core of it.

For a landscaping company or a restaurant chain, people talk about this constantly. For trades contractors, it flies under the radar - partly because most shop owners are focused on job costing, dispatch, and keeping trucks on the road, not HR policy. But the savings are just as real, and in some cases more significant, because the average trades technician earns more than a fast-food worker.

The IRS has allowed Section 125 plans since 1978. The statute (26 U.S.C. § 125) states clearly that an employee who participates in a qualifying cafeteria plan does not have the value of those benefits included in gross income. That exclusion flows directly through payroll - less taxable wages means less FICA on both sides of the equation.

The Two Taxes You Stop Paying

FICA is two taxes combined:

• Social Security tax: 6.2% (on wages up to the $176,100 Social Security wage base for 2026)
• Medicare tax: 1.45% (no wage cap)
• Combined employer rate: 7.65%

Both you and your employee pay this rate. When your employee makes a pre-tax benefit contribution, both sides save. This article focuses on the employer side, because that’s money directly off your payroll tax deposits.

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The Real Numbers for a Trades Shop in 2026

Here’s the specific math for a typical skilled trades business using 2026 IRS figures. We’ll use real BLS wage data and current IRS limits so you can verify every number.

Starting Point: What Your Techs Earn

According to the U.S. Bureau of Labor Statistics Occupational Employment and Wage Statistics program, median 2025 annual wages for common trades roles are:

Trade	Median Annual Wage (BLS P50)
HVAC Technician	$59,810
Electrician	$62,350
Plumber	$62,970
Diesel/Heavy Equipment Tech	$60,640
Welder	$51,000
General Construction Worker	$46,730

Source: U.S. Bureau of Labor Statistics, Occupational Employment and Wage Statistics, 2025 data (most recent published)

These are median wages - your senior technicians likely earn more, and your apprentices likely earn less. We’ll use a composite of $58,000/year for our examples below, which is conservative for a mid-tenure HVAC or plumbing tech and reasonable for a newer electrician or welder.

2026 Benefit Limits (IRS-Verified)

Before we run the numbers, here are the 2026 figures you need:

Benefit	2026 Limit	IRS Source
Health FSA (employee contribution)	$3,400	IRS Rev. Proc. 2025-32
Health FSA carryover (if plan allows)	$680	IRS Rev. Proc. 2025-32
Dependent Care FSA (per household)	$7,500	SECURE 2.0 / One Big Beautiful Bill
HSA (self-only, with HDHP)	$4,400	IRS Rev. Proc. 2025-19
HSA (family, with HDHP)	$8,750	IRS Rev. Proc. 2025-19
Employer FICA rate	7.65%	IRC § 3111

Scenario: A 10-Person HVAC Service Company

Let’s say you own an HVAC service company with 10 field technicians. You already offer group health insurance, and employees pay their portion of the premium out of pocket - currently deducted from their paycheck post-tax because you don’t have a formal Section 125 plan document in place.

That’s the default position for most small trades shops, and it costs both parties real money.

Here’s how the math changes with Section 125:

Per-Employee Assumptions (Annual):

• Average taxable wages: $58,000
• Employee’s share of health insurance premium: $3,600/year ($300/month)
• Health FSA contribution: $1,800/year ($150/month)
• Total pre-tax reduction per employee: $5,400/year

Employer FICA Savings Calculation:

Pre-tax reduction: $5,400
× Employer FICA rate: 7.65%
= Employer FICA savings per employee: $413/year

For 10 employees:

$413 × 10 = $4,130/year in employer FICA savings

That’s $4,130 per year in reduced payroll tax deposits - without raising wages, without adding new benefits, and without changing what your employees actually get.

Now zoom out. If 5 of those 10 employees also elect a Dependent Care FSA (say, $3,600/year each - well within the $7,500 limit), the numbers grow:

Adding Dependent Care FSA for 5 employees:

Additional pre-tax reduction per employee: $3,600
× Employer FICA rate: 7.65%
= Additional employer savings per employee: $275/year
× 5 employees: $1,377/year

Combined annual employer savings in this scenario:

$4,130 (health premiums + health FSA) + $1,377 (DCFSA) = $5,507/year

Want to run your own numbers? Use the Benefits Genius Savings Estimator to calculate based on your actual headcount and contribution levels.

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The Employee Side: Why This Matters for Keeping Your Team

For your technicians, Section 125 is essentially a paycheck boost without you spending more money. When pre-tax contributions reduce their taxable wages, they pay less in federal income tax and less in their share of FICA (also 7.65%).

Here’s what that looks like for one of your techs:

Tech earning $58,000/year with $5,400 in pre-tax contributions:

	Without Section 125	With Section 125
Gross wages	$58,000	$58,000
Pre-tax benefit contributions	$0	$5,400
FICA-taxable wages	$58,000	$52,600
Employee FICA (7.65%)	$4,437	$4,024
Employee FICA savings	-	$413/year

That’s $413 more per year in take-home pay for your tech - even before accounting for the federal income tax savings, which depend on their tax bracket. For a technician in the 22% bracket, the combined FICA + income tax savings on $5,400 of pre-tax contributions is approximately:

Income tax savings: $5,400 × 22% = $1,188
FICA savings: $5,400 × 7.65% = $413
Total employee annual tax savings: ~$1,601
Monthly: ~$133/month

To a field tech who’s comparing your offer to the shop down the street, $133 more per month in take-home pay is real money. It doesn’t show up in your base wage offer. But if you can educate your team about how this works during enrollment, it becomes a genuine reason to stay.

Use the Benefits Genius FICA Calculator to walk employees through their individual savings.

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Why Turnover Is Killing Trades Businesses Right Now

Turnover in the trades doesn’t get the same media coverage as restaurant turnover, but it’s arguably more costly - because a trained HVAC technician or licensed electrician is genuinely hard to replace.

The problem compounds in a few ways that are specific to trades businesses:

1. Certification and licensing aren’t transferable from the street. When a restaurant loses a line cook, they can put a new one through a two-week training program. When you lose a journeyman electrician, you’re waiting months to find a replacement with the right license level for your state’s requirements - and possibly turning down jobs in the meantime.

2. The technician shortage is real and getting worse. According to the U.S. Bureau of Labor Statistics Occupational Outlook Handbook, employment of HVAC mechanics and installers is projected to grow 9% from 2024 to 2034, and plumbers/pipefitters are projected to see approximately 44,000 annual job openings - largely driven by retirements. That means the pool of available talent is shrinking, not growing.

3. Competitors are recruiting your best people right now. Commercial contractors, large mechanical firms, and private equity-backed service brands are all aggressively competing for the same licensed technicians. If your total compensation package doesn’t compare favorably, you will lose people.

What Does One Turnover Event Cost a Trades Business?

There’s no single published figure for trades-specific turnover costs, and we won’t make one up. But we can look at the cost components that apply to your business:

• Recruiting costs: Job board postings, recruiter fees, time spent screening candidates
• Lost revenue: Jobs delayed or turned down because you’re short a tech
• Training and ramp time: A new hire working at reduced efficiency for 30-90 days
• Overtime for existing staff: To cover open routes while you’re recruiting
• Licensing and onboarding paperwork: Background checks, drug screens, state licensing verification

Every one of these costs is reduced when your current technicians choose to stay. Pre-tax benefits don’t solve every retention problem - pay, management quality, and workload all matter. But when a good tech is on the fence about whether to stay or go, knowing that their paycheck is optimized and that you’ve set up a real benefits program communicates that you’re running a serious business.

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What Exactly Goes Into a Section 125 Plan for a Trades Shop

A Section 125 cafeteria plan can be as simple or as comprehensive as your workforce needs. For most small-to-mid-size trades contractors, the starting point is a Premium Only Plan (POP) - and that’s often the right answer.

The Premium Only Plan (POP): The Foundation

A POP is the simplest form of Section 125. It does one thing: it allows employees to pay their share of employer-sponsored health, dental, and vision insurance premiums with pre-tax dollars instead of post-tax dollars.

If you already offer group health coverage, adding a POP means your employees’ premium contributions - which are currently deducted post-tax by default - become pre-tax deductions instead. Your payroll provider processes them accordingly.

This one change alone generates the employer FICA savings we calculated above, without adding any new benefits to your package.

What you need for a POP:

• A formal written plan document (required by IRS regulations)
• A plan effective date and plan year
• Employee notification (summary plan description)
• Annual nondiscrimination testing (to ensure the plan doesn’t disproportionately benefit highly compensated employees)

A benefits TPA or qualified benefits professional handles all of this. Benefits Genius can connect you with a qualified professional who works with trades businesses - find one here.

Adding a Health FSA

A Health FSA lets employees set aside up to $3,400 in 2026 (per IRS Rev. Proc. 2025-32) to pay for qualifying out-of-pocket medical expenses - doctor visits, prescriptions, dental work, glasses, contact lenses - with pre-tax dollars.

This is particularly relevant for trades employees who:

• Are on a high-deductible health plan and have predictable annual medical expenses
• Have dependents with regular healthcare costs (children’s dental visits, prescriptions, etc.)
• Are spending on medical expenses anyway and are currently doing it with after-tax dollars

From your perspective as the employer, every dollar elected to the FSA is a dollar you don’t pay FICA on. If 10 employees each elect $1,800:

$1,800 × 10 employees = $18,000 total pre-tax contributions
$18,000 × 7.65% = $1,377 in employer FICA savings

The FSA also benefits employees beyond the FICA savings - they avoid federal income tax on those dollars too.

One practical note about Health FSAs in trades: Field technicians and hourly workers often value predictable access to healthcare cash. The FSA’s “uniform availability” rule means that the full elected amount is available from day one of the plan year, not just as contributions accumulate. For a tech who needs to pay a $500 deductible in February, that early access matters.

Adding a Dependent Care FSA

The Dependent Care FSA (DCFSA) helps employees pay for child care, after-school programs, and elder care for dependents - all qualifying care that allows the employee (and their spouse) to work.

In 2026, the DCFSA limit jumped to $7,500 per household - up from $5,000, where it had been stuck since 1986. This is the most significant expansion of this benefit in decades.

For your trades technicians who have young kids, this is a meaningful number. Consider a tech with two children in full-time daycare paying $18,000/year in care costs. They can direct $7,500 of that through the DCFSA and pay for it pre-tax. Their savings:

DCFSA contribution: $7,500
Federal income tax savings (22% bracket): $1,650
FICA savings (7.65%): $574
Combined employee savings: ~$2,224/year

And your employer FICA savings:

$7,500 × 7.65% = $574/year per participating employee

Multiplied across even 3-4 employees with young families, this adds real dollars to both sides.

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Who Is (and Isn’t) Eligible - The 1099 Question

This is the #1 issue trades contractors need to understand before setting up Section 125.

Section 125 plans cover W-2 employees only. Independent contractors - 1099 workers - cannot participate in your cafeteria plan, regardless of how often they work for you or how central they are to your business.

This matters in trades because many contractors use a mix of:

• W-2 employees: Your core technicians, installers, office staff, dispatchers
• 1099 subcontractors: Specialists brought in for specific jobs, overflow capacity, niche skills

Only the W-2 employees count for plan participation and savings calculations. If you currently have significant 1099 workers, this is a good moment to review your worker classification - both for Section 125 purposes and for broader IRS compliance reasons.

The IRS applies a multi-factor test (behavioral control, financial control, type of relationship) to determine worker classification. If workers you’ve classified as 1099 are actually functioning as employees under IRS standards, misclassification creates exposure that’s entirely separate from the benefits question. A qualified tax or HR professional can help you assess this.

One more note: Sole proprietors and partners in partnerships cannot participate as employees in their own cafeteria plans. S-corp shareholders who own 2% or more are also excluded under IRC § 1372. If you’re a solo operator or small partnership, the plan still benefits your W-2 employees - you just don’t participate personally.

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Nondiscrimination Testing: What Trades Owners Need to Know

Section 125 plans must pass IRS nondiscrimination tests each year. The tests are designed to ensure that the plan doesn’t disproportionately benefit “highly compensated employees” (HCEs) or “key employees.”

For 2026, key thresholds include:

• Highly Compensated Employee (HCE): Earned more than $160,000 in the prior year (2025), or is a more-than-5% owner
• Key Employee: Officer earning more than $230,000, or more-than-5% owner, or more-than-1% owner earning more than $160,000

Why this matters for a trades shop:

Most trades businesses have a relatively flat wage structure - technicians and field staff earning $45,000-$75,000, with the owner and maybe one or two senior managers earning significantly more. In this structure, the nondiscrimination tests are usually not a problem, because the benefit is genuinely spread across a diverse workforce.

Where it can become an issue: if only the owner and a couple of highly paid managers enroll, while most of the field staff don’t. Low participation among rank-and-file employees can cause testing failures that disqualify the pre-tax treatment for HCEs.

The practical implication: enrollment communication matters. If you set up a Section 125 plan and don’t explain it clearly to your field crew, participation stays low, testing gets harder, and the plan’s tax benefits shrink. A benefits professional or TPA handles the annual testing, but you and your leadership team drive the enrollment conversations.

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How Section 125 Fits Into a Total Retention Strategy for Trades

Section 125 isn’t the whole answer to keeping your people. But it’s a real, concrete piece of a compensation package that too many trades owners are missing.

Here’s how it fits into the bigger picture:

What’s Driving Turnover in the Trades

The most commonly cited reasons skilled tradespeople leave their employer include:

1. Pay competitiveness - The baseline. If you’re 10% below market on base wages, no benefit program compensates for that.
2. Benefits gap - Tradespeople who have worked for larger commercial contractors often had benefit programs that smaller shops don’t match. When a tech moves from a union shop or large mechanical firm to a small independent, they sometimes take a perceived benefits step down.
3. Physical demands and burnout - Especially peak-season work in HVAC and roofing. Schedule and overtime policies matter.
4. No career path - Apprentice → journeyman → lead tech → foreman pathways aren’t always formalized at small shops.
5. Management - Direct supervisors and how dispatchers communicate job assignments.

A Section 125 plan directly addresses point #2 and partially addresses point #1 by boosting effective take-home pay. It also signals professionalism - a formal benefits program with a plan document, open enrollment, and employee education communicates that you’re running the business like a business, not a cash operation with no HR infrastructure.

What the Paycheck Boost Looks Like in Practice

When a tech compares job offers, they typically look at:

• Hourly wage or annual salary
• Health insurance (premium cost and coverage quality)
• Paid time off
• Overtime policy
• Retirement plan (if any)

They almost never ask whether the health insurance is deducted pre-tax or post-tax. That’s your opening.

If you can explain - at offer time, at annual enrollment, in a simple one-pager - that your plan saves an average technician $100-$130+ per month in taxes compared to paying for health coverage post-tax, you’ve created a tangible financial advantage that doesn’t cost you an extra dollar in wages.

The math is simple enough to put in a letter:

“When you enroll in our Section 125 plan and elect $3,600/year in health premiums and $1,800/year to your Health FSA, you reduce your taxable income by $5,400. At a 22% federal income tax rate, that’s $1,188 in income tax savings, plus $413 in FICA savings - approximately $1,601 per year, or about $133/month more in your pocket.”

That’s real. You can verify every number. And when a competitor shop is offering a wash in base wages, this kind of concrete explanation of your benefits package can make the difference.

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A Note on Plan Administration and Costs

Benefits Genius does not set up or administer Section 125 plans. We’re an education and connection resource - our job is to make sure you understand the landscape so you can have an informed conversation with a qualified professional.

Here’s what the implementation process typically involves:

1. Engage a TPA or benefits broker - A Third-Party Administrator handles plan document drafting, nondiscrimination testing, FSA account management, and ongoing compliance. Costs vary by provider and plan complexity.
2. Establish a plan document - IRS regulations require a written plan document. This is the legal foundation of your Section 125 plan and must be in place before the first pre-tax deduction is taken.
3. Coordinate with your payroll provider - Your payroll system (ADP, Gusto, Paychex, or others) needs to be configured to process designated deductions as pre-tax. This is typically done by your payroll rep working from the plan documentation.
4. Conduct employee enrollment - Employees must affirmatively elect their benefits during the enrollment window. contributions are generally irrevocable for the plan year unless the employee has a qualifying life event (marriage, birth of a child, change in employment status, etc.).
5. Annual compliance tasks - Nondiscrimination testing and plan document updates as IRS limits change.

The annual cost of professional TPA services for a small trades shop will vary based on plan type (POP only vs. full cafeteria plan with FSA/DCFSA), number of employees, and TPA pricing. A qualified professional can give you a real quote based on your situation.

Benefits Genius can connect you with a professional who works with trades businesses. Find a professional here.

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The Bottom-Line Math at Different Business Sizes

To make this concrete across the range of trades businesses, here are the employer FICA savings at different team sizes - using the same conservative assumptions (average $5,400 in pre-tax contributions per participating employee, 80% participation rate).

All math: participating employees × $5,400 × 7.65%

Business Size	Total Employees	Participating (80%)	Annual Employer FICA Savings
Solo + 3 techs	4	3	$1,238
Small shop	8	6	$2,476
Mid-size crew	15	12	$4,953
Growing company	25	20	$8,235
Regional contractor	40	32	$13,176

Assumes average pre-tax contribution of $5,400/employee/year. Actual savings depend on employee contributions. Math: participating employees × $5,400 × 7.65%. Use the ROI Calculator to model your specific scenario.

Add Dependent Care FSA contributions for employees with qualifying childcare expenses, and these numbers grow further.

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Getting Started: What to Do This Week

If you’ve read this far, you already know more about Section 125 than most of your competitors. Here’s a practical sequence:

1. Audit your current payroll setup. Are your employees’ health insurance premiums currently being deducted pre-tax or post-tax? Ask your payroll contact. If you don’t have a formal Section 125 plan document, the answer is post-tax - and you’re leaving money on the table.

2. Estimate your potential savings. Use the Benefits Genius Savings Estimator to get a rough annual figure based on your headcount and benefit contributions. This takes a few minutes and gives you a number to bring to a professional conversation.

3. Talk to a qualified benefits professional. A TPA or licensed benefits broker who works with small employers can review your current setup, explain the plan document requirements, and give you a realistic picture of costs and savings for your specific business.

4. Review your worker classification. Before setting up a plan, confirm that your key technicians are properly classified as W-2 employees and not 1099 contractors. If you have questions about this, a tax professional can help you assess your situation.

5. Build the paycheck boost into your hiring conversations. Once your plan is in place, don’t let the savings be invisible. Train your managers and front-line supervisors to explain - simply and clearly - that your benefits package puts more take-home pay in employees’ pockets.

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Frequently Asked Questions

Can a small HVAC or plumbing contractor set up a Section 125 plan?

Yes. Section 125 cafeteria plans are available to employers of any size, including small contractors with as few as one W-2 employee. Independent contractors (1099 workers) cannot participate, but W-2 field technicians, office staff, and installers are eligible. A qualified TPA or benefits professional can help you establish a compliant plan document.

How much can a skilled trades employer save on FICA taxes with Section 125?

The employer saves 7.65% of every pre-tax dollar contributed by employees. For example, if 10 technicians each reduce their taxable wages by $5,400 per year through pre-tax health insurance premiums and FSA contributions, the employer’s FICA savings total approximately $4,130 per year ($5,400 × 7.65% × 10). Use the Benefits Genius Savings Estimator to calculate your specific numbers.

What benefits can skilled trades employees put into a Section 125 plan?

Eligible benefits include employer-sponsored health insurance premiums, Health FSAs (up to $3,400 in 2026), Dependent Care FSAs (up to $7,500 in 2026), dental and vision premiums, and certain supplemental insurance premiums. Every pre-tax dollar reduces both the employee’s and employer’s FICA obligations.

Does Section 125 require offering health insurance?

No. A Premium Only Plan (POP) just allows employees to pay their share of existing group health premiums on a pre-tax basis. You can also add a Health FSA or Dependent Care FSA without adding new health coverage. You do need a formal written plan document to be IRS-compliant.

What happens to the employer FICA savings?

The savings appear automatically as reduced payroll tax deposits. There’s no special step required - once your payroll is configured to treat qualifying deductions as pre-tax, the FICA math changes automatically on every payroll run.

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Disclaimer: This article is for educational purposes only and does not constitute tax, legal, or benefits advice. Contribution limits and tax rates referenced are based on IRS Revenue Procedure 2025-32 and IRS Revenue Procedure 2025-19 for the 2026 plan year. Consult a qualified tax, legal, or benefits professional before implementing any employee benefit plan.