How to Do Payroll for a Construction Company: Step-by-Step
Trayd Team
Published on June 11, 2026
Running payroll for a construction company is not the same as running payroll for an office. Workers move between job sites. Pay rates change by project, trade, and classification. Tax withholdings depend on where the work is performed, not where the company is based. Union fringe contributions, prevailing wage rules, and certified payroll reporting all add layers that generic payroll processes weren't designed to handle.
For trade contractors managing 50 or 500 field employees, the payroll process touches almost every part of the business, from field operations to compliance to job costing. Getting each step right protects your margins, keeps your crews paid accurately, and prevents the compliance violations that can cost thousands. Here's how to do construction payroll from start to finish.
Step 1: Capture Hours From the Field
Accurate payroll starts with accurate time data. Every hour needs to be tagged to the right worker, the right project, and the right classification before it reaches the office.
What Field Time Data Needs to Include
For construction, a timesheet entry isn't just "Employee X worked 8 hours on Tuesday." Each entry needs to capture:
The project or job site where the work was performed
The worker's classification (laborer, journeyman, foreman, apprentice) for that specific shift
The cost code associated with the work activity
Straight time vs. overtime hours, separated clearly
The state and jurisdiction where the work took place (for multi-state contractors)
Paper timesheets filled out from memory at the end of the week are where most payroll errors begin. A digital field tracking system that captures clock-in/out data on a mobile device, with project and classification tagging at the point of entry, eliminates the rounding, misattribution, and missing detail that paper creates.
Foreman Review and Approval
Time data should be reviewed and approved daily, not weekly. A foreman app that lets supervisors verify crew hours each day catches discrepancies while the information is still fresh. Approving five days of crew time from memory on Friday afternoon is guessing, not verifying.
Step 2: Apply the Correct Wage Rates
Once approved hours reach the office, the construction payroll system needs to apply the correct rate to every hour. In construction, "the correct rate" is rarely a single number.
Factors That Determine the Rate
A worker's pay rate on any given shift depends on several variables:
Base classification rate: Each trade and classification carries a defined wage. A journeyman electrician earns a different rate than an apprentice or a foreman.
Project-specific rates: Prevailing wage projects require payment of the DOL-determined rate for the project's county and construction type. Union projects require the CBA-negotiated rate. When both apply, the contractor pays whichever is higher.
Overtime rules: Federal law requires time-and-a-half after 40 hours per week. Some states have daily overtime thresholds. Some union CBAs have additional overtime provisions.
Shift differentials: Some projects or CBAs include premium rates for night shifts or weekend work.
A construction payroll system built for this complexity stores rate tables by project, classification, and CBA, then applies the correct rate automatically based on the data captured in Step 1.
Step 3: Calculate Deductions and Employer Obligations
With gross pay calculated, the next step is computing everything that gets deducted from the worker's check and everything the employer owes on top of wages.
Employee-Side Deductions
Withhold from each worker's gross pay:
Federal income tax based on the worker's W-4 elections
State and local income tax based on where the work was performed
FICA (employee share): 6.2% for Social Security (up to $184,500 in 2026) plus 1.45% for Medicare
Union dues (for union employees), calculated per the local's specific method
Voluntary deductions such as 401(k) contributions, health insurance premiums (employee share), or garnishments
Employer-Side Obligations
The employer pays these on top of wages:
FICA (employer match): 7.65% matching the employee's Social Security and Medicare contributions
FUTA: 0.6% effective rate on the first $7,000 per employee (in most states)
SUTA: Varies by state and employer experience rating
Workers' compensation insurance: Calculated by trade classification, it varies significantly by state and trade
Union fringe contributions (for union contractors): Health and welfare, pension, annuity, training, and vacation fund payments, mandated by the CBA and calculated per hour worked
For union contractors, fringe contributions alone can add $25-40/hour on top of base wages. A payroll system that handles union logic natively calculates these automatically based on stored CBA terms.
Step 4: Run Payroll and Issue Payments
With gross pay, deductions, and employer obligations calculated, the payroll is ready to process.
Verification Before Processing
Before finalizing the pay run, verify:
Classification accuracy: Are workers paid at the correct classification rate for the work they actually performed?
Prevailing wage compliance: On covered projects, does every worker's total compensation (wages plus fringes) meet or exceed the applicable prevailing wage rate?
Overtime calculations: Are overtime hours calculated correctly under federal, state, and CBA rules?
A construction payroll platform with proactive compliance checks flags these issues before payroll runs, not after. Catching a wage shortfall before the pay run prevents a violation. Catching it afterward means back wages, corrections, and potentially a compliance filing.
Payment Methods
Most construction companies pay via direct deposit, though some still issue paper checks for workers without bank accounts. Pay frequency varies: weekly payroll is common in construction, particularly on union and prevailing wage projects where weekly certified payroll reports are required.
Step 5: File Taxes and Submit Reports
After payroll runs, the employer must file taxes and submit any required compliance reports. Trayd files all applicable quarterly and annual payroll taxes.
Tax Filing
Federal payroll taxes (FICA, FUTA, and federal income tax withholding) are deposited on either a monthly or semi-weekly schedule, depending on the employer's total tax liability during the lookback period
State payroll taxes follow each state's deposit schedule and filing requirements
Quarterly returns (Form 941) report total wages, tips, and taxes withheld
Annual returns (Form 940 for FUTA, W-2s for employees, 1099s for contractors) are due in January/February
Compliance Reporting
On prevailing wage projects, certified payroll reports (WH-347) are due weekly. Union contractors must also submit benefit fund reports and dues remittances to each union local on the schedule defined in the CBA.
Step 6: Allocate Labor Costs to Jobs
Payroll processing doesn't end when paychecks are issued. For construction, the final step is allocating fully burdened labor costs to the correct project and cost code in your job costing system.
Why Job Costing Integration Matters
When payroll and job costing share the same data, every labor dollar, including base wages, payroll taxes, workers' comp, benefits, and union fringes, lands on the correct job cost report automatically. Contractors who track raw wages in payroll and then separately calculate burdened costs in a spreadsheet are always working with delayed, potentially inaccurate data.
Real-time job costing driven by real payroll data is what lets you catch labor overruns on a project in week two instead of discovering them at closeout.
Common Mistakes to Avoid
Even experienced contractors make a few recurring errors when processing construction payroll.
Misclassifying Workers
Classifying a skilled tradesperson at a lower wage classification, or classifying a W-2 employee as a 1099 contractor, creates legal and financial exposure. The DOL and IRS have intensified enforcement around worker misclassification in construction.
Ignoring Multi-State Withholding
A worker based in Connecticut who works three days in New York triggers withholding obligations in both states. Failing to track work location and apply the correct state's rules results in incorrect withholdings and potential penalties.
Processing Payroll From Stale Data
Running payroll on Thursday from timesheets submitted the previous Friday means the data is nearly a week old. Late-arriving corrections, missed hours, and forgotten project changes all get baked into the pay run. Daily time capture and approval shortens the gap between field activity and payroll data.
Build a Payroll Process That Scales
A construction payroll system that connects field tracking, payroll processing, compliance reporting, and job costing in a single workflow eliminates the manual handoffs where errors enter the process. Each step feeds the next automatically, from clock-in to cost report.
Trayd unifies field data capture, payroll, compliance, and job costing in one platform built for trade contractors. Workers clock in from the job site, hours flow into payroll with classification and project already attached, and fully burdened labor costs hit your job cost reports in real time. Book a demo to see the full workflow.
Frequently Asked Questions
How is construction payroll different from regular payroll?
Construction payroll requires project-level wage configurations, multi-state tax withholding based on work location, prevailing wage compliance, union CBA-driven rates and fringes, certified payroll reporting, and job costing integration. Standard payroll platforms lack these capabilities.
What is the first step in processing construction payroll?
Accurate time capture from the field. Every hour must be tagged to the correct worker, project, classification, and cost code before reaching the office. Digital field tracking replaces paper timesheets and prevents the rounding and misattribution errors that cause downstream payroll problems.
How often should construction companies run payroll?
Weekly payroll is the most common schedule in construction, especially for union and prevailing wage projects that require weekly certified payroll submissions. Some non-union contractors on private projects run bi-weekly payroll.
What taxes do construction employers pay on top of wages?
Employers pay FICA (7.65% matching Social Security and Medicare), FUTA (effectively 0.6% on the first $7,000 per employee), SUTA (varies by state), and workers' compensation insurance premiums calculated by trade classification.
How does construction payroll connect to job costing?
When payroll data flows into job costing, fully burdened labor costs (wages, taxes, insurance, benefits, union fringes) are allocated to the correct project and cost code automatically. Disconnected systems require manual re-entry and produce delayed cost data.
Can one software handle all construction payroll steps?
Construction-specific platforms can handle time capture, wage calculations, tax withholding, union fringes, certified payroll reporting, and job costing in a connected workflow. Generic payroll tools typically cover only basic wage processing and tax filing.
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