How to Survive a Prevailing Wage Audit: Preparation Checklist for Contractors

The call comes on a Tuesday afternoon. "This is [name] from the Department of Labor. We're conducting a prevailing wage investigation on [project name]. We'll need your payroll records for the past 18 months."

Your stomach drops. But here's the truth: if you've been maintaining proper records and paying correctly, an audit is just a paperwork exercise. It's the contractors who haven't been doing things right who should worry.

What Triggers an Audit

Understanding why you're being audited helps you prepare:

1. Employee complaint (most common) — A current or former worker claims they weren't paid prevailing wage
2. Random selection — The DOL conducts routine audits on active public projects
3. GC-initiated — The general contractor noticed discrepancies in your certified payroll
4. Competitor tip — Another contractor reported suspected violations
5. Pattern recognition — Your certified payroll shows unusual patterns (all workers at apprentice rates, no overtime, etc.)

The Documents You'll Need

When the DOL comes calling, they want:

Payroll Records

• Weekly payroll registers for the audit period
• Certified payroll reports (WH-347 or state equivalent) as submitted
• Time cards or daily time sheets (originals, not recreated)
• Cancelled checks or direct deposit records
• Pay stubs issued to employees

Employee Records

• Employee classification documentation (journeyman cards, apprentice registrations)
• Apprenticeship agreements (if applicable)
• I-9 forms
• W-4 forms

Benefit Records

• Health insurance plan documents and enrollment records
• Pension/annuity contribution records
• Training fund contribution records
• Proof of payment to benefit plans (bank statements, cancelled checks)

Project Records

• Subcontract agreement
• Prevailing wage schedule (PRC) for the project
• Daily logs showing workers on site
• Change orders (if they affected scope or duration)

The Audit Process

Step 1: Document Request

The investigator sends a letter requesting specific records. You typically have 10-14 days to respond. Don't ignore it — that escalates things quickly.

Step 2: Record Review

The investigator compares your certified payroll to your actual payroll records. They're looking for:

• Workers on certified payroll who aren't in your payroll system (ghost employees or misclassified subs)
• Hours on certified payroll that don't match time records
• Rates paid that are below the prevailing rate
• Missing fringe benefit payments

Step 3: Employee Interviews

The investigator may interview your workers (current and former) on site or by phone. They'll ask:

• What work do you perform?
• How many hours do you work per day/week?
• What is your hourly rate?
• Do you receive benefits?

Step 4: Findings

The investigator issues findings. If violations are found, you'll receive a notice of underpayment with a specific dollar amount owed.

Step 5: Resolution

You can:

• Pay the underpayment (plus penalties if applicable)
• Contest the findings through an administrative hearing
• Negotiate a settlement

How to Prepare Before an Audit Happens

The best time to prepare for an audit is before you get the call:

1. Reconcile monthly — Compare your certified payroll submissions to your actual payroll records. Fix discrepancies immediately.
2. Keep originals — Original time cards, not photocopies. Original certified payroll submissions with wet signatures.
3. Organize by project — All records for a specific project should be in one place (physical or digital folder).
4. Document classifications — When a worker's classification changes, document it. Keep apprentice registration cards on file.
5. Track fringe separately — Maintain a clear record showing fringe benefit contributions by employee, by pay period.

Common Audit Outcomes

In my experience with contractor clients:

• Clean audit (no findings): ~30% of cases. You did everything right. The investigator closes the file.
• Minor findings: ~50% of cases. Small calculation errors, missing documentation. Usually resolved with minimal back-pay.
• Significant findings: ~15% of cases. Systematic underpayment, misclassification, or missing records. Can result in substantial back-pay and penalties.
• Willful violations: ~5% of cases. Intentional fraud (fake certified payrolls, paying cash under the table). Criminal referral possible.

Don't Wait for the Call

Proactive compliance is always cheaper than reactive remediation. A monthly certified payroll review catches errors before they become audit findings.

Learn about our certified payroll compliance services → [blocked]

Related reading:

• Certified Payroll: The Complete Compliance Guide → [blocked]
• NY Prevailing Wage Rates for Long Island Contractors → [blocked]
• Our fractional controller services → [blocked]
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