Davis-Bacon vs. prevailing wage: A guide for contractors

Federally funded construction is booming, with the Infrastructure Investment and Jobs Act approving $1.2 trillion for transportation and infrastructure updates. These projects are attractive because public works are often more lucrative and stable than private jobs. And with so much money being allocated to federal construction, there are more opportunities for contractors to take on these projects.

But they come with a catch. Government-funded projects fall under Davis-Bacon and prevailing wage regulations, which require meeting strict payroll and reporting requirements. To stay compliant, companies need to understand and follow federal and local prevailing wages to the letter, or the consequences can be costly. 

In this guide, you’ll learn the difference between Davis-Bacon versus prevailing wage and how to stay compliant when you’re overseeing municipal, state, or federally funded projects. And how modern construction-first platforms like Miter simplify Davis-Bacon and prevailing wage workflows.

What is Davis-Bacon?

Legislators passed the Davis-Bacon act in 1931 to prevent construction workers from being underpaid. During the Great Depression, politicians were concerned that contractors would ship low-cost labor in from other states to undermine local rates. As a result, local laborers would be out of work, and wage standards for the area would drop. Davis-Bacon set out to prevent that from happening. 

The Davis-Bacon Act requires contractors to pay workers a set amount for federally funded or assisted projects over $2,000. Employers must pay at least the prevailing wage, which includes hourly pay and fringe benefits.

Davis-Bacon wage determinations vary based on geographic area and job classification. The U.S. Department of Labor (DOL) sets them based on local wage surveys and periodically updates them when new survey data becomes available, such as the Bureau of Labor Statistics Employment Cost Index (ECI).

What is prevailing wage?

Prevailing wage is the legally required minimum pay rate for workers on certain government-funded construction projects, based on specific job classifications and geographic areas. The DOL sets federal prevailing wages under the Davis-Bacon Act while states and municipalities set their own prevailing wages under separate laws, often referred to as “little Davis-Bacon laws.”

Importantly, prevailing wage is not just an hourly rate. It includes both a base wage and a required fringe benefit amount, reflecting what workers in that trade and location typically earn in total compensation. Fringes may include health insurance, retirement contributions, paid time off, or – if those benefits don’t meet the required fringe threshold – cash paid in lieu of benefits. Failing to calculate or allocate required fringe amounts correctly can result in audits, back wages, and significant penalties.

Sometimes, contractors use the term “prevailing wage” to describe a project itself rather than the wage standard. Naming conventions and enforcement rules can also vary by state, even when the laws function similarly.

Davis-Bacon vs. prevailing wage: How they differ

Davis-Bacon and prevailing wage are terms that people often use interchangeably. While they’re deeply intertwined, they’re distinct concepts. Here’s a quick summary:

• Davis-Bacon: The federal law that requires employers to pay the federal prevailing wage on federally-funded public projects
• Prevailing wage: The wage standard itself, which may apply at the federal, state, or local level

Compliance requirements depend on which prevailing wage laws govern the project. The funding source determines whether federal Davis-Bacon rules apply or whether a project is subject to state or local prevailing wage laws. Let’s take a look at key factors that impact how these requirements apply to construction projects. 

Governing authority

The DOL, which establishes employment laws and enforcement standards across all 50 states, governs Davis-Bacon wages. These federal prevailing wage rules which apply on federally funded construction projects nationwide.

State labor departments, and in some cases, municipal agencies administer their own prevailing wage statues on state- or locally funded projects. These laws operate independently of Davis-Bacon and may include different thresholds, classifications, and enforcement procedures. But 22 states don’t have prevailing wage laws at all:

• Alabama
• Arizona
• Arkansas
• Florida
• Georgia
• Idaho
• Indiana
• Iowa
• Kansas
• Kentucky
• Louisiana
• Michigan
• Mississippi
• New Hampshire
• North Carolina
• North Dakota
• Oklahoma
• South Carolina
• South Dakota
• Utah
• West Virginia
• Wisconsin
  

In these states, contractors working on local- or state-funded projects don’t need to follow prevailing wage regulations. But in every state, companies handling federally funded projects still need to follow Davis-Bacon.

Project coverage and funding sources

Davis-Bacon applies to public projects over $2,000 funded or assisted by the federal government. These may include highways, bridges, and military installations.

State prevailing wage laws apply to projects funded or subsidized by state and local governments. These can include schools, community centers, and city infrastructure. Project dollar thresholds differ area-to-area and determine which jobs are subject to prevailing wage laws. Some states have no threshold, while others apply these requirements only to projects above a certain cost.

Wage determination process

How do you know how much to pay your workers? The contracting authority, the federal or state agency the project is for, will provide you with determinations for each of the trades on the site, based on the completion of the project and when the project was sent out to bid.

The wage determination tells you how much you must pay in hourly wages as well as fringe benefit amounts for each type of worker. If you do not already pay your workers the amount required, you must start paying them the amount shown in the determination when they work on the project.

If a project receives both state and federal funds, and prevailing wage rates differ for the same job classification, you’ll need to pay the higher of the two rates.

Fringe benefit requirements

Under the Davis–Bacon Act, contractors must pay workers the full prevailing wage, which includes both a base hourly rate and a required fringe benefit amount. The wage determination will list these two components separately.

Contractors can satisfy the fringe requirement in one of three ways:

1. Benefits: Provide bona fide benefits that meet or exceed the required fringe amount
2. Cash: Pay the full fringe amount in cash on top of the base hourly wage
3. A mix of both: Cover part of the required fringe amount through qualifying benefits and pay the remaining difference in cash

Bona fide benefit plans may include health insurance, retirement contributions, life insurance, paid time off, paid holidays, and sick leave. If you already provide qualifying benefits, you should credit their hourly value toward the required fringe benefit amount rather than paying additional cash on top. Failing to apply available fringe offsets can result in overpaying employees beyond the wage determination, unnecessarily increasing labor costs on public projects. Miter helps contractors take advantage of fringe offsets and save thousands every year.

Legally required employer costs such as Social Security taxes, unemployment insurance, and workers’ compensation do not count toward fringe credit.

Many state and local prevailing wage laws also require fringe benefits, but the amounts, qualifying benefit types, and reporting rules vary by jurisdiction. Contractors must review the specific prevailing wage determinations applicable to each project to determine how fringes must be calculated and documented.

Payroll and compliance challenges for employers

Failing to comply with Davis-Bacon regulations has big consequences. Making the mistakes listed below may lead to fines, back pay requirements, and withheld payments. You could even be at risk of contract termination and debarment from future public works bids.

To prevent these issues, keep the following potential pitfalls in mind while managing Davis-Bacon and prevailing wage projects.

Correct worker classification by trade

Classifying workers incorrectly is one of the most common prevailing wage and Davis-Bacon mistakes contractors face.Each wage determination includes specific trade classifications, and workers must be paid based on the work they actually perform.

State and federal classification structures can differ in subtle ways. Federal classifications are typically more broad, while state and local classifications may be more detailed. These differences make it easy to apply the wrong classifications and rates, especially when working in multiple states or on both state and federal jobs.

Another complication: Trade responsibilities can also overlap. For example, pipefitters and plumbers may perform similar tasks, and general laborers may assist specialists like electricians or irrigation technicians. When employees perform work across multiple classifications, teams must track hours separately and apply the correct rate to each portion of time worked.

Tracking location-specific wage determinations

Prevailing wage rates differ by location, which can be confusing when handling projects that cross county or state boundaries. If you have workers performing tasks in different municipalities, it’s important to track their time and location carefully and pay them the applicable prevailing wages.

Managing fringe benefit calculations

Keeping up with area-specific fringe benefit laws demands careful tracking and calculation. Some states even require you to provide specific perk types. For example, California mandates employers contribute either to an approved apprenticeship program or to the California Apprenticeship Council.

Many contractors also miss out on prevailing wage fringe credits by paying the full fringe amount in cash on top of offering qualifying benefits. When benefits aren’t properly credited, employers effectively double pay. Structuring benefits to count toward fringe requirements can lower overall labor costs by reducing the amount paid as taxable cash wages, lowering labor costs by 3–5% on public works jobs.npo

Certified payroll reporting accuracy

Certified payroll is one of the biggest headaches contractors face. Manual certified payroll reporting is time-consuming and increases the risk of errors which can lead to back pay, withheld payments, and civil penalties. Worse, certified payroll mistakes may prevent you from bidding on public jobs in the future.

To make things more complicated, federal and state authorities often have different requirements for certified payroll reporting. For example, Davis-Bacon requires weekly payroll reports via Form WH-347, but certain states, like California and New York, have their own required forms and online portals.

Audit readiness and documentation

Publicly funded projects often come with more frequent and extensive audits than private jobs. Missing documentation, incorrectly classified time, and payroll mistakes can lead to investigations and serious penalties. But with so many moving parts to keep track of, staying audit ready can feel like an overwhelming administrative burden.

How employers can stay compliant with prevailing wage requirements

Contractors need accurate time data, wage calculations, and certified payroll reporting to stay compliant with Davis-Bacon and prevailing wage requirements.

While laws can be complicated and difficult to manage, staying compliant doesn’t have to be. Miter makes it easy to tie every hour worked to the correct job and classification, calculate base pay and fringes based on prevailing wage rates, and instantly generate accurate certified payroll reports with a few clicks. Eliminate compliance concerns and save hours every payroll period with Miter’s certified payroll software. 

American Asphalt, a family-owned business in Southern California, saves over 800 hours per year on certified payroll reporting with Miter. Before, the company used a scattered mix of software and paper documentation to track prevailing wages. Miter consolidated that workflow into one system, turning two to three hours of weekly paperwork into a 15-minute job.

Miter brings HR, time tracking, and payroll into a single platform, consolidating fragmented tech stacks. Miter automates the most painful parts of managing prevailing wages, fringe benefits, and certified payroll reporting. Finance teams can stay audit ready and compliant without the manual calculations and headaches.

Manage prevailing wage compliance more effectively with Miter.

Managing Davis-Bacon and prevailing wage requirements adds financial and administrative complexity to payroll. But contractors pursue public works projects for a reason: They’re often large, stable, and backed by reliable funding sources. Winning this work can create long-term growth opportunities. The challenge is balancing that opportunity with the added compliance burden, especially when managing multiple projects with different funding sources and wage determinations.

Miter helps office teams manage a compliant payroll process in half the time. Assign the right wage determination, and watch as Miter applies rates, fringes, and deductions for you. Miter Payroll lets you generate and export accurate certified payroll reports in seconds, keeping tight, audit-ready records without the time investment.

Pay your people correctly, and maintain peace of mind with Miter.