What Happens During a Davis-Bacon Audit

April 20, 2026 — WH347.io Team

A DOL audit of your certified payroll records can feel overwhelming — but contractors who keep clean, complete records have nothing to fear. Here's exactly what auditors look for and how to be ready.

The Department of Labor's Wage and Hour Division can open a Davis-Bacon investigation on any federal project at any time — and enforcement has been on an upward trend. For many contractors, the first audit feels like a crisis. For contractors with clean records, it's a paperwork exercise. The difference between those two experiences comes down almost entirely to how you've been managing your certified payroll records from week one.

What Triggers a Davis-Bacon Audit?

• Worker complaint — the most common trigger by far. A single worker who believes they were underpaid or misclassified can file a complaint with the WHD.
• Routine compliance review by the contracting agency — federal agencies are required to monitor contractor compliance and may refer cases to the DOL.
• Referral from the contracting officer — if the agency notices missing or irregular certified payroll submissions, they may escalate to WHD.
• Pattern of late or incomplete WH-347 submissions — consistent issues with your weekly submissions raise flags.
• Tip or complaint from a competitor or union — particularly in unionized trades, competitors sometimes file complaints as a competitive tactic.

What Do Auditors Actually Look At?

The Wage and Hour Division will issue a request for records covering the audit period. Their job is to compare what you reported on the WH-347 against your actual payroll practice. Discrepancies — intentional or not — are what they're looking for.

• WH-347 forms for every week of the project, including any 'no work performed' weeks.
• Payroll registers or records showing actual wages paid to each worker.
• Daily time and attendance records — hours worked each day, by worker, including any overtime.
• Worker classification documentation — evidence of what each worker actually did on site and the wage determination that applied.
• Fringe benefit documentation — insurance statements, pension remittance records, or cash-in-lieu calculations.
• Subcontractor certified payroll records, if you are the prime contractor — auditors will want to see subs' compliance too.

How Long Does an Audit Take?

A straightforward audit where records are complete, organized, and consistent with what was reported typically resolves in a matter of weeks. Investigations involving back wage calculations across multiple workers, disputes over worker classification, or uncooperative contractors can drag on for months. The DOL has a two-year statute of limitations on back wage recovery, so audits can reach back two years from the date a complaint is filed — meaning an audit can cover work that ended long before it started.

What Are the Penalties?

• Back wages owed to workers — the most common outcome. You pay the difference between what workers were paid and what the prevailing wage required.
• Debarment from federal contracting for up to three years — this is the most severe business consequence and applies to willful or repeat violations.
• Contract termination — the contracting agency may terminate your contract if violations are serious enough.
• Liquidated damages — in cases of willful underpayment, damages can equal the total back wages owed, effectively doubling the financial penalty.
• Criminal referral — in cases involving falsified Statements of Compliance or deliberate fraud, the DOL can refer the matter for criminal prosecution.

The Most Common Violations Auditors Find

• Misclassification — workers doing skilled trade work listed under a lower-paid classification on the WH-347.
• Underpayment — base wages below the applicable prevailing wage rate for the project location and trade.
• Missing or incomplete fringe benefit payments — failing to pay the fringe component of the wage determination.
• Falsified or inconsistent records — WH-347 figures that don't match payroll registers or time records.
• Failure to submit WH-347 weekly — gaps in submission history or chronic lateness.

How to Prepare Before an Audit Happens

The contractors who move through audits cleanly are the ones who treat record-keeping as a routine part of every project — not an emergency response. Here's what that looks like in practice:

• Keep certified payroll records for at least three years after project completion. The DOL recommends this buffer even though their statute of limitations is two years.
• Verify worker classifications against the wage determination at the start of every project. The classification must match the work performed, not just the job title.
• Reconcile your WH-347 submissions against your actual payroll each week as you go. Catching an error in week 3 is far easier than reconstructing months of records during an investigation.
• Keep fringe benefit documentation current — insurance premium statements, pension remittance confirmations, and cash-in-lieu calculations all need to be on file.
• Make sure every subcontractor on your project is submitting their own certified payroll on schedule. As prime, their compliance is your problem.

What to Do If You're Contacted by the DOL

Don't panic, and don't ignore the contact. Reach out to your attorney before responding to a WHD inquiry — even if you believe your records are clean. Cooperate fully; obstruction or non-responsiveness consistently leads to worse outcomes. Gather your records immediately and organize them by project and week, since the DOL will give you a limited window to produce documents. If you identify discrepancies in your own records before the auditor does, discuss with your attorney how to address them proactively — voluntary compliance almost always results in better outcomes than a contested finding.

How WH347.io Keeps You Audit-Ready

Every WH-347 generated through WH347.io is stored in your account, timestamped, and available for download at any time. Your employee records, wage classifications, weekly timecards, and completed reports are all in one place — organized exactly the way an auditor wants to see them. When a DOL records request arrives, you produce everything in minutes rather than scrambling through filing cabinets or trying to reconstruct spreadsheets from memory.

Audits are not a sign that something has gone wrong — they are a routine part of federal contracting. Contractors who maintain complete, accurate certified payroll records have nothing to fear. The goal is to make that standard of record-keeping effortless, so compliance happens automatically as part of your weekly process rather than as a fire drill at the end of a project.

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