Certified Payroll for Contractors: The Complete Compliance Guide
Certified Payroll for Contractors: The Complete Compliance Guide
If you're working on public projects — federal, state, or municipal — you're subject to prevailing wage requirements and certified payroll reporting. Get it wrong, and you're looking at back-pay claims, debarment, or worse. Get it right, and prevailing wage jobs can be some of your most profitable work.
What Is Certified Payroll?
Certified payroll is a weekly payroll report (Form WH-347 for federal projects) that documents:
- Employee name, address, and last 4 of SSN
- Work classification (journeyman, apprentice, laborer)
- Hours worked each day (straight time and overtime)
- Rate of pay (base rate + fringe)
- Gross pay, deductions, and net pay
- Project name and location
The "certified" part means you (or an authorized officer) sign a Statement of Compliance attesting that the information is accurate and that all workers were paid at least the prevailing wage rate.
Federal vs. State Prevailing Wage
Federal (Davis-Bacon Act): Applies to federal construction contracts over $2,000. Wage rates are set by the Department of Labor for each trade and geographic area.
New York State (Labor Law Article 8): Applies to public work contracts. Rates are set by the NYS DOL Prevailing Wage Unit. Generally higher than federal rates in the NYC metro area.
Key difference: NY requires fringe benefits to be paid in cash (added to hourly rate) or through bona fide benefit plans. You can't just pay the base rate and ignore the fringe component.
The Most Common Certified Payroll Mistakes
1. Wrong Classification
Your guy does electrical work on Monday and general labor on Tuesday. If you report him as an electrician for both days, you're overpaying (good for him, bad for your costs). If you report him as a laborer for both days, you're underpaying — and that's a violation.
The fix: Track hours by classification daily. One worker can have multiple classifications in a single week.
2. Miscalculating Overtime
On prevailing wage jobs, overtime is calculated on the BASE rate, not the total rate (base + fringe). This is counterintuitive and frequently done wrong.
Example: Base rate $50/hr + Fringe $30/hr = Total $80/hr
- Straight time: $80/hr
- Overtime: $50 × 1.5 + $30 = $105/hr (NOT $80 × 1.5 = $120)
3. Not Separating Prevailing Wage and Private Work
If an employee works on both a prevailing wage job and a private job in the same week, you need to track hours separately. The prevailing wage only applies to hours worked on the public project.
4. Apprentice Ratio Violations
Most prevailing wage schedules limit the ratio of apprentices to journeymen (typically 1:3 or 1:4). If you have too many apprentices on site relative to journeymen, you're in violation — even if you're paying the correct apprentice rate.
5. Missing Fringe Benefit Documentation
If you're paying fringe benefits through a benefit plan (health insurance, pension, training fund) rather than in cash, you need documentation proving the plan is bona fide and that contributions are actually being made. "We have health insurance" isn't enough — you need plan documents and proof of payment.
Setting Up Your System
For contractors doing regular prevailing wage work, you need:
- Payroll software that handles prevailing wage — not all do. ADP, Paychex, and Foundation all have prevailing wage modules.
- Daily time tracking by project and classification — paper timesheets or digital (ClockShark, Busybusy, Hcss)
- A prevailing wage rate library — updated annually (or more frequently for NY state)
- A compliance review process — someone checks the certified payroll before it's submitted
Audit Triggers
The DOL and state agencies audit certified payroll. Common triggers:
- Employee complaints (most common)
- Random audits on large projects
- Discrepancies between your certified payroll and the GC's records
- Tip-offs from competitors
- Pattern of using apprentices at high ratios
The Consequences of Non-Compliance
- Back pay: You pay the difference between what you paid and the prevailing rate — for every affected employee, for every affected hour
- Penalties: Up to $1,000 per day per violation (federal)
- Debarment: Banned from public work for up to 3 years
- Criminal prosecution: In extreme cases (willful violations)
Get Certified Payroll Right
Prevailing wage compliance isn't something to figure out as you go. If you're bidding public work, get your systems set up before the first day on site.
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Related reading:
- Prevailing wage rate lookups and compliance tips → [blocked]
- Construction accounting for contractors → [blocked]
- Our fractional controller services → [blocked]
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