Last updated: April 2026

Certified Payroll Requirements: What Contractors Must File and When

Miss one weekly certified payroll report and you can lose the entire contract.

Certified payroll is the weekly report that contractors on government-funded construction projects submit to prove they paid workers the required prevailing wage rates. It is not optional, and the consequences go beyond fines.

Why Government Contract Reporting Costs More Than Contractors Expect

Federal Davis-Bacon rules apply to any construction contract over $2,000 that uses federal funds. The Davis-Bacon certified payroll reporting requirement extends to every subcontractor on the project, regardless of their individual contract size. A framing crew with three workers on a $50 million highway job files the same weekly report as the general contractor.

The real cost is time, not paperwork. Each weekly report requires line-by-line wage data for every worker: hours by day, pay rate, fringe benefits, deductions, and net pay. For a contractor running two government jobs with 40 workers across both sites, that is 80 worker-line entries per week, every week, for the life of the project. Most contractors estimate 2 to 6 hours per week on compliance reporting, depending on crew size. A mid-size contractor billing $150 per hour for project management time is spending $300 to $900 weekly on report preparation alone.

The tradeoff of skipping or delaying reports is severe. The Department of Labor can withhold contract payments, debar your company from future federal work for up to three years, and refer willful violations for criminal prosecution. Under 40 U.S.C. 3144, falsifying the report is a federal crime carrying fines up to $1,000 and six months in prison.

Late reports cost more than late concrete.

Government contract payroll runs on a tighter compliance clock than any private job. Contractors who treat the weekly filing like a back-office task instead of a project deliverable learn this the hard way, usually when the contracting officer freezes a progress payment.

How to Do Certified Payroll: Completing the WH-347 Form

The WH-347 is the standard prevailing wage reporting form published by the Department of Labor. You are not required to use this exact form, but most contracting agencies expect it, and submitting anything else invites questions you do not want to answer.

Each row represents one worker for one workweek. You enter the worker's name, classification (laborer, carpenter, electrician), the applicable prevailing wage rate, hours worked each day, gross pay, deductions, and net pay. The form also requires fringe benefit information: whether you pay fringe benefits in cash or to approved plans.

The Statement of Compliance on page two is where contractors get into real trouble. Your signature certifies that every worker listed was paid the full prevailing wage for their classification, including fringe benefits. Signing this statement when any worker was underpaid, even by $0.50 per hour, constitutes a false certification.

Every signature on that form is a sworn statement.

Prevailing wage rates come from the Department of Labor's wage determinations, published on sam.gov. Each determination lists a base hourly rate plus a fringe benefit rate for every classification in that geographic area. If the determination says electricians earn $52.30 per hour plus $18.75 in fringes, you must pay exactly that or more. Paying $52.30 with only $16.00 in fringes means you owe each electrician $2.75 per hour for every hour worked, plus you filed a false certification. One exception: if a project uses only state funds with no federal dollars, the federal WH-347 does not apply, and your state prevailing wage law may require a different form entirely.

The Weekly Certified Payroll Deadline That Catches New Contractors

The reports are due weekly. Not biweekly. Not monthly. Every seven days, covering the previous workweek, with most contracting agencies requiring submission within seven days after the workweek ends.

New contractors consistently underestimate this cadence. If you run biweekly payroll internally, you still owe weekly filings on government projects. That means splitting your biweekly payroll data into weekly segments, matching hours and wages to the correct reporting week.

Certified payroll penalties for late submission vary by agency. Some agencies issue warnings for the first offense. Others withhold progress payments until all filings are current. On federal projects, the contracting officer can stop work entirely if reports fall more than two weeks behind.

This weekly requirement does not apply to weeks where your crew performed no work on the project. In that case, you submit a report marked "no work performed." Skipping the submission entirely, even for an idle week, creates a gap in the record that auditors flag immediately.

Contractors running multiple government projects simultaneously face a multiplication problem. Three projects with different prevailing wage rates, different classifications, and different submission portals mean three separate weekly reports with three different sets of wage determinations.

Five Prevailing Wage Reporting Mistakes That Trigger Federal Audits

The Department of Labor's Wage and Hour Division audits prevailing wage reports on both a complaint-driven and random basis. These errors account for the majority of investigations and enforcement actions.

Misclassifying workers is the most expensive mistake. Listing a journeyman electrician as a helper to pay a lower prevailing wage rate saves $8 to $15 per hour on paper. When caught, you owe every dollar of the difference for every hour that worker was misclassified, plus liquidated damages. A single misclassified worker on a 40-week project at 40 hours per week can generate $12,000 to $24,000 in back wages alone.

Underpaying fringe benefits by routing contributions to non-qualified plans is the second most common error. The fringe portion of prevailing wage reporting must go to bona fide plans: health insurance, pension, vacation funds. Paying fringes into a company-controlled account that fails to meet DOL requirements means those payments do not count, and you owe the full fringe amount again.

Failing to calculate overtime at the prevailing wage overtime rate catches contractors who use their regular company rate instead. On a Davis-Bacon project, overtime is 1.5 times the prevailing wage base rate, not 1.5 times whatever you normally pay that worker. This distinction does not apply to private projects running concurrently, where standard FLSA rates govern.

Mixing government and private project hours on one paycheck without proper allocation leads to underpayment on the government side. Workers who split time between a prevailing wage job and a private job must be tracked separately, with government hours paid at the prevailing rates for their classification.

Submitting reports with missing Social Security numbers, blank classification fields, or unsigned Statements of Compliance generates automatic rejections from many agencies. These administrative errors do not carry penalties on their own, but they delay payments and guarantee closer scrutiny of your wage data on every future submission.

California, New York, and State Prevailing Wage Rules

Federal Davis-Bacon covers federally funded projects. But 32 states have their own prevailing wage laws covering state and locally funded construction. Prevailing wage certified payroll requirements often differ from federal rules, and on projects with mixed funding, you may need to comply with both simultaneously.

California's prevailing wage program, administered by the Department of Industrial Relations, is the strictest in the country. California requires electronic submission through its DIR eCPR system. The state maintains its own wage determinations that frequently exceed federal rates. California also requires contractors to register with the DIR before bidding on public works projects. An unregistered contractor who performs work faces penalties of $200 per day per worker, assessed retroactively from the first day on site.

New York prevailing wage rates, set by the Bureau of Public Work, often exceed federal Davis-Bacon rates for the same classification in the same county. New York enforces a "supplements" system where fringe benefit contributions must meet specific minimums for health, pension, vacation, and training funds separately. Paying the total fringe amount without satisfying each individual supplement category still counts as a violation.

Twelve states have no prevailing wage law at all.

In those states, only federal requirements apply when federal funds are involved. Assuming your state law matches federal rules, in either direction, is a reliable way to create a certified payroll compliance gap. Contractors working across state lines on government projects need to check the specific prevailing wage statute for each project location, not assume one set of rules covers everything.

Reporting Software vs Doing It by Hand

You can complete the WH-347 by hand or in a spreadsheet. For a contractor with five workers on one government project, that approach works. The form is straightforward, and the weekly time commitment stays under an hour.

The math changes with crew size. Once you have 15 or more workers across multiple projects with different wage determinations, manual entry becomes a source of errors, not savings. Prevailing wage compliance software like Payroll4Construction, LCPtracker, and Elation Systems automates wage determination lookups, calculates fringe benefit splits, flags underpayments before you sign the Statement of Compliance, and generates submission-ready reports.

Pricing for compliance reporting software ranges from $50 to $200 per month for small contractors, scaling up based on employee count and project volume. Payroll4Construction bundles the reporting into its construction payroll platform, handling both regular payroll processing and prevailing wage compliance in one system.

Software calculates. It does not verify.

If you enter the wrong classification code, the software will calculate wages perfectly at the wrong rate. Every report still needs human review before the Statement of Compliance is signed. For contractors who handle fewer than two government projects per year, a well-built spreadsheet template with the correct wage determination rates entered manually handles the occasional government contract at zero software cost. The tradeoff is that spreadsheets do not flag errors, and you carry the full audit risk yourself.

Your Next Steps for Government Contract Payroll

Pull the wage determination for your project from sam.gov before the first worker sets foot on the job site. Verify every classification and fringe benefit rate against the contract documents.

Set up your weekly reporting schedule on day one. Block time every Monday morning to compile the previous week's data. Falling behind by even two weeks creates a backlog that takes three times as long to clear, and some agencies start withholding payments at that point.

If you run more than one government project or employ more than 10 workers on prevailing wage jobs, evaluate whether a dedicated construction payroll platform saves enough time to justify the monthly cost. For most contractors above that threshold, it does.

Review your worker classifications against the wage determination quarterly. Rates update, and a classification that was correct in January may fall short by summer.

For questions beyond prevailing wage reporting, the construction payroll hub covers union payroll processing, workers comp, and contractor classification. If your workers earn overtime on government projects, prevailing wage overtime calculations differ from standard FLSA rules. The payroll provider directory lists platforms that handle construction-specific compliance alongside standard payroll.

Written by a Certified Payroll Professional with 30 years of experience.

This is not legal or financial advice. Consult a qualified professional for your specific situation.