Certified payroll
The weekly Form WH-347 (or state equivalent) reporting wages on federal Davis-Bacon construction projects.
Certified payroll is the weekly payroll report required on federal Davis-Bacon construction projects (over $2,000 in federal contract value), filed on federal Form WH-347. The form lists every worker on the project, their classification (laborer, carpenter, electrician, etc.), the hours worked each day of the workweek, the prevailing wage paid, the actual wage paid, and any deductions. The contractor or subcontractor signs a "Statement of Compliance" attesting that the payroll matches the project records.
Many states have analogous certified-payroll requirements for state-funded construction (California prevailing wage, New York prevailing wage, Illinois Prevailing Wage Act, New Jersey Prevailing Wage Act, others). The state forms vary but the structure is similar.
Certified payroll is filed weekly regardless of the contractor's underlying pay frequency. A contractor running biweekly payroll for office staff but Davis-Bacon-covered carpenters in the field has to maintain weekly certified payroll for the carpenters in addition to running biweekly payroll for everyone else. Most modern construction-payroll software handles the WH-347 generation automatically.