Certified Payroll
A weekly payroll report, federal form WH-347 on Davis-Bacon projects, that a contractor submits to certify, under penalty of perjury, that every worker on a [[concept-prevailing-wage|prevailing wage]] public project was actually paid the required rate for their trade classification and hours worked.
Why it matters
Certified payroll is a legal compliance requirement, not just internal bookkeeping: it's the government's primary audit tool for catching prevailing wage violations, and a contractor that submits inaccurate certified payrolls (even unintentionally, through sloppy classification of workers) can face back-pay liability, penalties, and suspension from future public contracts.
On a real project
A general contractor working on a federally funded highway project submits a weekly certified payroll report for every worker on site, listing each worker's trade classification, hours worked, and hourly rate, and certifying that the rates match the project's Davis-Bacon wage determination.
Who this matters most to
A Construction Accountant typically owns the actual preparation and submission of certified payroll reports, since the numbers have to reconcile exactly with the company's regular payroll records. A HR Manager has to make sure every worker is classified under the correct trade category before payroll runs, since a misclassification shows up directly as a compliance error on the certified payroll report.
Where this goes wrong
A contractor classifies a worker performing skilled electrical work under a lower- paying general laborer classification on the certified payroll report, whether by mistake or to save money. An audit catches the misclassification, and the contractor owes back wages for the pay difference across every week the worker was misclassified plus potential penalties for the false certification itself.