Why Prevailing Wage Work Pays More Than You Think
Most contractors look at prevailing wage requirements and see paperwork. What they should see is a pricing floor that eliminates the race to the bottom. On a typical private-sector commercial project, you are competing against every contractor who can fog a mirror and carry insurance. On a prevailing wage project, you are competing against the smaller subset of contractors who have the administrative discipline to comply with Davis-Bacon or state prevailing wage laws. That difference in competitive intensity shows up directly in your margins.
The Davis-Bacon Act requires that contractors and subcontractors on federal construction projects exceeding $2,000 pay their laborers and mechanics no less than the locally prevailing wages and fringe benefits. Most states have their own versions: California has some of the most aggressive prevailing wage requirements in the country, while states like New York, Massachusetts, and Illinois enforce similar regimes on state-funded projects.
Here is the math that matters. A journeyman electrician in Los Angeles might earn $35 to $42 per hour on private-sector commercial work. The prevailing wage determination for the same classification on a federal project in Los Angeles County is $58.69 per hour in base wages plus $24.87 in fringe benefits, totaling $83.56 per hour. That is roughly double the private-sector all-in cost. But because every bidder on the project faces the same wage floor, the labor cost advantage that low-paying contractors normally exploit disappears. You are competing on execution, not on who can pay workers the least.
The counterintuitive insight is this: prevailing wage projects are often more profitable than private-sector work despite the higher labor costs, because the pricing reflects the true cost of skilled labor and the reduced competition allows for healthier markups. Contractors who master the compliance side consistently report net margins 2 to 4 percentage points higher on government work compared to their private-sector portfolio.
How Prevailing Wage Rates Are Determined
Federal Wage Determinations
The U.S. Department of Labor publishes prevailing wage rates through the Wage and Hour Division. Each wage determination is specific to a geographic area (usually a county) and a type of construction (building, heavy, highway, or residential). The rates are based on surveys of wages paid on similar projects in the area, and they are updated periodically.
Every federal construction contract will include a wage determination as part of the bid documents. Before you price the job, you pull the applicable wage determination from SAM.gov and build your labor estimate using those rates. If you estimate using your standard private-sector rates and win the bid, you will be legally obligated to pay prevailing wages anyway, which means your labor costs just blew past your estimate.
Base Rate Versus Fringe Benefits
Each prevailing wage determination has two components: the base hourly rate and the fringe benefit rate. The base rate is the minimum cash wage you must pay. The fringe rate covers health insurance, pension contributions, vacation, apprenticeship training fund contributions, and similar benefits.
This split matters enormously for your accounting. You have three options for satisfying the fringe obligation. First, you can pay the entire fringe amount as cash wages on the worker's paycheck. Second, you can contribute the fringe amount to bona fide benefit plans (health insurance, 401(k), union funds). Third, you can use a combination of both. If your existing benefit contributions do not fully satisfy the prevailing fringe rate, you must pay the difference as cash on the check.
For example, if the prevailing fringe rate is $24.87 per hour and your company contributes $18.50 per hour to health insurance and retirement plans, you owe the worker an additional $6.37 per hour in cash beyond the base wage rate. Getting this calculation wrong, even by a few cents per hour, creates compliance exposure across every hour worked on the project.
The WH-347: Certified Payroll Reporting Step by Step
What Goes on the Form
The WH-347 is the standard certified payroll form required on federal Davis-Bacon projects. You submit it weekly to the general contractor (if you are a sub) or to the contracting agency (if you are the prime). Each weekly submission covers one payroll period and must include every worker who performed any labor on the project during that week.
For each worker, the form requires their name, the last four digits of their Social Security number, their work classification (which must match a classification listed in the wage determination), the hours worked each day, the total hours for the week, the hourly rate of pay, the gross amount earned, itemized deductions (federal tax, state tax, FICA, union dues, other), and the net amount paid. The form also requires a Statement of Compliance signed by a company officer or authorized representative, certifying under penalty of perjury that the information is correct and that the workers were paid at least the applicable prevailing wage rates.
The Classification Trap
The most dangerous field on the WH-347 is the work classification. Each worker must be classified according to the type of work they actually performed during that pay period, not their general job title. If your electrician spent four hours pulling wire (journeyman electrician rate) and four hours digging a trench (laborer rate), you technically need to report both classifications and pay the appropriate rate for each.
Where contractors get into trouble is classifying workers at a lower-paying classification to save money. Paying a carpenter the laborer rate because he occasionally carries materials is a violation. The Department of Labor calls this misclassification, and it is the single most common finding in prevailing wage audits. The penalties include back pay for all affected hours, potential debarment from federal contracts for up to three years, and in egregious cases, criminal prosecution under the False Claims Act.
Weekly Submission Deadlines
Certified payroll must be submitted within seven days of the end of the payroll period. Late submissions can trigger payment holds on your progress billings. The general contractor has a contractual obligation to collect certified payrolls from every sub before forwarding them to the contracting agency, so your late filing does not just affect you; it holds up payment for the entire project team.
Build the submission into your weekly payroll process. The best practice is to generate the WH-347 simultaneously with your payroll run, using payroll software that supports certified payroll reporting. Trying to reconstruct certified payrolls after the fact from timesheets and pay stubs is how errors happen.
How Do You Account for Fringe Benefits on Prevailing Wage Jobs?
Cash Fringe on the Check
When you pay the fringe benefit amount as additional cash wages, the accounting is straightforward. The worker's gross pay increases by the fringe amount, and you record the full amount as direct labor cost on the job. The fringe portion is subject to payroll taxes (FICA, FUTA, SUTA), which increases your effective labor burden. If the fringe rate is $24.87 per hour and you pay it all as cash, your payroll tax cost on that fringe alone is roughly $1.90 per hour (7.65% FICA), pushing your true fringe cost to about $26.77.
Contributions to Bona Fide Plans
When you satisfy the fringe obligation through benefit plan contributions, those contributions are not subject to payroll taxes. This is why many contractors prefer this approach: you save 7.65% on the employer's share of FICA for every fringe dollar routed through benefit plans. On a $2 million prevailing wage project with $800,000 in labor, the payroll tax savings from routing fringes through benefit plans instead of paying cash can exceed $15,000.
The accounting treatment for plan contributions requires tracking each benefit plan separately. Health insurance premiums, 401(k) employer matches, pension contributions, and training fund contributions each hit different expense accounts. You must be able to demonstrate that the contributions are made to bona fide plans that meet Department of Labor requirements and that the contributions are irrevocable (you cannot claw them back if the worker leaves).
The Annualization Method
One area that trips up contractors is the annualization of benefits. If you provide benefits to workers on both prevailing wage and non-prevailing wage projects, you need to calculate the hourly equivalent of your benefit contributions. The standard approach is to divide total annual benefit costs by total annual hours worked to determine the hourly fringe credit.
For example, if you pay $9,600 per year in health insurance premiums for a worker and that worker works 1,800 hours per year, your hourly fringe credit is $5.33. If the prevailing wage fringe rate is $24.87, you still owe $19.54 per hour in additional fringe, either as cash or through additional benefit contributions.
What Triggers a Prevailing Wage Audit?
Complaint-Driven Investigations
The Department of Labor's Wage and Hour Division investigates prevailing wage complaints, and a significant number of audits are triggered by worker complaints. A disgruntled current or former employee contacts the DOL and alleges they were not paid the correct prevailing wage. The DOL is required to investigate every complaint, so a single unhappy worker can trigger a full payroll audit covering the entire project.
This is why paying workers correctly is not just a compliance issue but a risk management issue. Workers who are underpaid know it, and they talk to each other. One complaint often leads to a broader investigation that uncovers systemic issues.
Cross-Referencing Certified Payroll Against Actual Records
Auditors compare your WH-347 submissions to your actual payroll records: cancelled checks, bank statements, time cards, and tax filings. If the certified payroll shows a worker earned $2,800 for the week but the actual paycheck was $2,200, that discrepancy triggers a deeper investigation. Common causes include kickback schemes (where workers are forced to return a portion of their wages) or simple errors in the certified payroll preparation.
Apprentice Ratio Violations
Federal prevailing wage rules allow apprentices to be paid at a reduced rate, but only if the apprentice is registered in a bona fide apprenticeship program approved by the Bureau of Apprenticeship and Training or a state apprenticeship agency. There are also maximum ratios of apprentices to journeyworkers (typically 1:1 or 1:3, depending on the trade and jurisdiction). Using unregistered apprentices or exceeding the allowed ratio are common audit findings.
Subcontractor Noncompliance
As a general contractor, you are responsible for the prevailing wage compliance of your subcontractors. If a sub fails to submit certified payrolls or underpays workers, the GC faces consequences up to and including liability for the back wages. This means your subcontractor prequalification process should include verifying that subs have prevailing wage experience and the payroll systems to support compliance.
Why Government Work Is a Financial Opportunity
Payment Reliability
Government agencies pay their bills. The payment may take 30 to 60 days (sometimes longer on state projects), but the credit risk is essentially zero. Compare this to private-sector work, where a developer's cash flow problems can leave you chasing a $400,000 receivable for six months. On public projects, prompt payment statutes in most states require the prime contractor to receive payment within 30 days and to pay subs within 7 to 10 days of receipt. If the agency is late, many statutes provide for interest penalties.
For a contractor managing cash flow across multiple projects, the predictability of government payments is enormously valuable. You can plan your cash flow with confidence because you know the money is coming. That predictability reduces your line of credit usage, which reduces interest expense, which flows directly to your bottom line.
Reduced Price Competition
The compliance burden of prevailing wage work acts as a natural barrier to entry. Contractors who lack the administrative infrastructure to track classifications, calculate fringe obligations, and submit weekly certified payrolls simply do not bid on this work. The result is a smaller, more qualified bidder pool. On a typical private-sector commercial project, you might see 8 to 12 bidders. On a comparable prevailing wage project, you might see 4 to 6. Fewer bidders means less price pressure, which means healthier margins.
Bonding and Growth
Government projects typically require performance and payment bonds, which means you need a surety relationship. The discipline required to maintain bonding capacity (clean financials, strong WIP schedules, adequate working capital) also makes you a better-run company. Contractors who build a government work portfolio often find that the financial discipline required for bonding and prevailing wage compliance makes their entire operation more profitable, including their private-sector work.
Setting Up Your Accounting System for Prevailing Wage Jobs
Job Costing by Wage Determination
Your chart of accounts and job costing system need to accommodate prevailing wage projects. At a minimum, you need the ability to track labor costs by classification within each job. If you have a journeyman electrician and an apprentice electrician on the same project, their costs must be tracked separately because they are paid at different rates.
Set up cost codes that distinguish between prevailing wage and non-prevailing wage labor on each project. If a worker splits time between a prevailing wage project and a private-sector project in the same week, their pay rate changes depending on which project they are working on. Your timekeeping system must capture this at the daily level.
Payroll Software Requirements
Not all payroll software handles certified payroll well. You need a system that can maintain multiple pay rates per employee (base rate plus fringe, varying by project and classification), generate WH-347 forms automatically from your payroll data, track fringe benefit credits by plan and by employee, and produce reports that reconcile certified payroll to actual payroll for audit purposes.
Platforms like Foundation Software, Viewpoint (Vista), and Sage 300 Construction and Real Estate have built-in certified payroll modules. If you are running QuickBooks, you will likely need a third-party add-on like eMars or Certified Payroll Reporting to handle the WH-347 generation. The add-on cost (typically $50 to $200 per month) is trivial compared to the cost of manual preparation errors.
Timekeeping Discipline
Prevailing wage compliance lives and dies on timekeeping. You need daily time records that capture which project the worker was on, what hours they worked, and what classification of work they performed. Weekly timesheets are not granular enough because workers who move between projects or classifications during the week need daily tracking.
Digital timekeeping systems with GPS and project-level tracking (like Busybusy, ExakTime, or Hcss) eliminate the ambiguity of paper timesheets and create an audit trail that the Department of Labor will accept as reliable. The investment in a digital timekeeping platform, typically $5 to $10 per user per month, pays for itself on the first prevailing wage project by reducing the time spent preparing certified payrolls and the risk of errors.
The Bottom Line on Prevailing Wage Work
Prevailing wage projects are not charity from the government. They are high-margin opportunities that reward contractors who invest in their administrative systems and financial discipline. The compliance requirements are real but manageable, especially with the right payroll software and accounting processes.
The contractors who thrive on government work are the ones who treat certified payroll as a core business process rather than an afterthought. They build the cost of compliance into their overhead, they invest in training for their payroll staff, and they maintain relationships with their contracting agencies. In return, they get reliable payment, less cutthroat competition, and margins that consistently outperform their private-sector portfolios.
If your accounting system and payroll processes are not set up to handle prevailing wage work, the setup cost is modest relative to the opportunity. A fractional CFO or construction-focused accountant can help you configure your job costing, payroll software, and reporting workflows so you are ready to bid your first government project with confidence.