Paycheck guide for trades and manufacturing workers

Shift differentials for 1st, 2nd, and 3rd shift. Hazard pay. Per diem for travel jobs. Prevailing wage on government contracts. Union scale and dues. Tool allowances. Apprentice, journeyman, and master rates. Manufacturing and trades workers deal with more pay variables than almost any other group of W-2 workers — and every variable changes your take-home differently.

The result is a paycheck that can vary by hundreds of dollars from one period to the next, and a pay stub with so many line items that it is hard to tell what actually changed. If you have ever switched from a shop job to a prevailing wage job and been surprised that your take-home did not jump as much as you expected — or moved from 1st to 2nd shift and could not figure out exactly how much more you are making — this guide breaks down every variable.

Why trades paychecks are complex

Most trades and manufacturing workers do not have a single, fixed pay rate. Your rate depends on what job you are on, which shift you are working, whether it is a prevailing wage contract, and what stage you are in your career (apprentice, journeyman, master). Here are the main sources of complexity:

• Shift differentials: 2nd shift (afternoon/evening) typically adds $1 to $3/hr. 3rd shift (overnight) adds $2 to $5/hr. In manufacturing, these are standard across most union contracts and many non-union shops. Over a 40-hour week, a $3 differential adds $120 to your gross — of which you keep about $78 to $85 after taxes.
• Prevailing wage: Davis-Bacon and related state prevailing wage laws require contractors on government-funded projects to pay a set wage rate determined by the Department of Labor. This rate is often $10 to $30/hr above your shop rate and includes a fringe benefit component. Whether the fringe is paid as cash (taxable) or directed to benefits (often pre-tax) makes a major difference in your take-home.
• Overtime variability: some weeks are 40 hours, others are 50 to 60 when a deadline hits or a shutdown window opens. In manufacturing, scheduled shutdowns and turnarounds can mean weeks of 12-hour shifts with heavy overtime followed by reduced hours. Each pattern produces a very different paycheck.
• Multiple rate structures: you might earn $32/hr at the shop, $48/hr on a prevailing wage job, and $35/hr plus per diem on a travel assignment — all in the same month. Each rate means different tax withholding.

What hits your paycheck

Here is every variable that can change your trades or manufacturing take-home:

• Shift differentials: 2nd shift (+$1 to $3/hr), 3rd shift (+$2 to $5/hr). Fully taxable. Under most union contracts and FLSA rules, differentials are included in your regular rate for overtime calculations — meaning your OT rate is 1.5x the combined base + differential, not 1.5x base plus the differential.
• Prevailing wage (Davis-Bacon): the total prevailing wage has two components — base hourly rate and fringe benefit rate. Example: the prevailing rate for an electrician might be $52/hr base + $23/hr fringe. If fringe is paid as cash, your gross is $75/hr and you are taxed on all of it. If fringe goes to health insurance and retirement, those portions are pre-tax and reduce your taxable income.
• Hazard pay: additional pay ($2 to $10/hr depending on the hazard) for working with dangerous materials, at heights, in confined spaces, or during extreme conditions. Fully taxable as ordinary income.
• Per diem and travel pay: for work away from your home base, per diem covers meals and lodging. If paid under an accountable plan at or below IRS per diem rates, it is not taxable. If it exceeds those rates or is paid without an accountable plan, the excess (or full amount) is taxable income.
• Union scale and dues: union journeyman rates are set by the local agreement and vary significantly by trade and region. Electricians in a major city might earn $45 to $55/hr; pipefitters $42 to $52/hr; carpenters $38 to $48/hr. Union dues typically run $40 to $120/month, deducted after tax. Working dues (a percentage of gross) may also apply on union jobs.
• Tool allowances: some contracts include a weekly or monthly tool allowance ($20 to $50/week). If paid as wages, it is fully taxable. Some employers reimburse tool purchases under an accountable plan, which is not taxable.
• Apprentice-to-journeyman progression: apprentice rates are typically 40 to 60% of the journeyman rate in year one, increasing by 5 to 10% each year. A 4th-year apprentice electrician earning $30/hr who becomes a journeyman at $48/hr sees a $18/hr gross increase — but only about $11 to $13/hr in additional take-home after taxes, higher dues, and increased benefit contributions.
• Retirement contributions: union pensions and annuities are often employer-funded. If you also contribute to a 401(k) or union annuity, traditional contributions reduce your federal and state taxable income. Typical contribution rates range from 3 to 8% of gross.
• Health and welfare fund: in union shops, health benefits are often funded per-hour by the employer (e.g., $8 to $12/hr into the health and welfare fund). This does not appear on your paycheck as a deduction — it is an employer cost. But in non-union shops or for supplemental coverage, you may have per-paycheck health insurance deductions of $80 to $250.

A realistic scenario

You are a journeyman electrician earning $48/hr union scale, paid weekly, married filing jointly in a state with income tax. This week you are on a prevailing wage job:

• 40 regular hours at $52/hr prevailing base rate
• 10 overtime hours at $78/hr (1.5 × $52)
• Prevailing fringe: $23/hr, split as $15/hr to health & welfare fund (employer-paid, not on your stub) and $8/hr paid as cash (taxable)

Building up the gross on your pay stub:

• 40 regular hours × $52 = $2,080
• 10 overtime hours × $78 = $780
• 50 hours × $8/hr cash fringe = $400
• Total gross: $3,260

Now the deductions. Federal withholding calculates based on annualizing $3,260 over 52 weeks — the system sees roughly $169,520 annually and withholds accordingly (married filing jointly). FICA takes $249.39 (7.65%). State takes its percentage. Union dues ($25 for the week, after-tax) and working dues (2% of gross, $65.20, after-tax) come straight off the bottom. Your 401(k) at 6% ($195.60 pre-tax) reduces your federal and state taxable income.

Compare this to a regular shop week: 40 hours at $48/hr = $1,920 gross. The prevailing wage week adds $1,340 in gross. After all deductions and taxes, you keep roughly $800 to $900 of that extra $1,340. Still a significant bump — but not $1,340.

When your paycheck changes unexpectedly

These are the most common reasons a trades or manufacturing worker's paycheck shifts without warning:

• Job changed from prevailing wage to shop rate: the prevailing wage job ended and you went back to your regular shop rate. The drop can be $10 to $30/hr in gross, which after taxes means $300 to $800 less per week in take-home.
• Shift reassignment: moving from 3rd shift ($5 differential) to 1st shift (no differential) costs you $200/week in gross, about $130 to $140 in take-home.
• Overtime dried up: a shutdown or turnaround ended, and hours dropped from 55+ to 40. The loss of 15 overtime hours at your OT rate can be $700 to $1,200 less in weekly gross.
• Union dues increased: annual rate adjustments are standard. A $15/month increase means about $3.75 less per weekly paycheck. Working dues adjustments (percentage of gross) have a larger impact during high-earning periods.
• Apprentice rate step-up: your annual rate increase kicked in. Gross goes up, but so do dues and benefit contributions. The net increase is smaller than the rate change suggests.
• Per diem treatment changed: your employer switched from an accountable plan (non-taxable per diem) to paying per diem as wages (taxable). Same dollar amount, but now you owe taxes on it — reducing your take-home by 30 to 40% of the per diem.
• January FICA reset: if you earned enough in the prior year to hit the Social Security wage cap ($184,500 in 2026), the 6.2% tax stopped. In January it restarts. For a $48/hr journeyman working regular hours, this means about $143 less per biweekly paycheck until you hit the cap again.
• Local tax kicked in: some job sites are in municipalities with local income tax (common in Ohio, Pennsylvania, and parts of the Midwest). Working at a new site in a different city can add a 1 to 2.5% local tax that was not on your previous paychecks.

What TakeHome IQ does for trade workers

TakeHome IQ handles the layered complexity of trades and manufacturing pay. Here is what it does for you specifically:

• Models multiple rate structures: enter your shop rate or prevailing wage rate, shift differentials, and overtime hours. The app builds your gross with the correct rates and shows every tax line — federal, state, local, and FICA — against your actual numbers.
• Handles prevailing wage fringe splits: enter the cash fringe portion separately from your base rate. The app treats it as taxable income and shows you the real take-home on prevailing wage jobs.
• Shows overtime impact after taxes: on a $52/hr prevailing rate, your OT rate is $78 gross — but what do you actually keep per hour? The app shows the after-tax number based on your marginal rate, so you know whether picking up an extra shift is worth it.
• Accounts for union deductions correctly: union dues and working dues are after-tax. They reduce your take-home but not your taxable income. The app gets this right so your projection matches your actual stub.
• Compares shop rate to prevailing wage: see the side-by-side take-home difference between your regular shop job and a prevailing wage job. Know the real dollar difference, not just the gross rate difference.
• Tracks YTD for FICA caps: trades workers with heavy overtime and prevailing wage jobs can approach the Social Security wage cap. The app shows when your 6.2% SS tax will stop and how much your per-hour take-home increases after that.
• Compares this paycheck to last: when a line moves, see exactly what changed. Was it fewer overtime hours? A shift reassignment? A dues increase? The comparison view shows every delta.

Your pay is complicated. Your paycheck should not be. Know what you are earning, what you are keeping, and what changed — before payday.

Frequently asked questions

Is prevailing wage taxed differently than my shop rate?

No. Prevailing wage is taxed as ordinary income at the same rates. However, the higher gross pay on prevailing wage jobs means more withholding per paycheck. The fringe benefit portion may be paid as cash (taxable) or directed to benefits (which may be pre-tax), and this distinction affects your take-home significantly.

How do union dues affect my taxes?

Union dues are after-tax deductions — they reduce your take-home pay but do not reduce your taxable income for federal purposes. Some states allow a state tax deduction for union dues, but federally they have not been deductible since the Tax Cuts and Jobs Act of 2017.

Why did my paycheck change when I moved from apprentice to journeyman?

Journeyman rates are significantly higher than apprentice rates, but the promotion also usually comes with higher union dues, increased benefit contributions, and potentially a different tax bracket for withholding. The net increase is real but smaller than the gross rate jump suggests.