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Missouri prevailing wage and certified payroll
Missouri has its own prevailing-wage law (RSMo §§290.210–290.340) on top of federal Davis-Bacon.
State law
RSMo §§290.210–290.340
Applies to contracts
Over $75,000
Certified payroll
Certified payroll (DLS form LS-57) to the public body running the project; records kept 1 year (§290.290); Affidavit of Compliance (PW-4) to the public body at completion before final payment. Annual Wage Order (AWO 33 current) sets county rates.
Daily overtime
After 10 hours in a day, set on the job automatically.
In CertifyWage
WH-347 and Statement of Compliance, which this state accepts; state rules applied to overtime and rates.
Notes
Overtime after 10 hours a day or 40 a week; double time on Sundays and holidays (RSMo 290.230).
Federal rules that apply in Missouri too
Davis-Bacon
Federal and federally assisted construction contracts over $2,000 carry a wage determination from SAM.gov. Every laborer and mechanic is paid at least the listed base rate plus fringe for the classification of work actually performed.
Weekly certified payroll
The contractor and every subcontractor submit a certified payroll each week work is performed, with a signed Statement of Compliance. The U.S. Department of Labor’s optional form is the WH-347 (Rev. January 2025).
Overtime
On covered contracts over $100,000, the Contract Work Hours and Safety Standards Act requires time and a half of the basic rate for hours over 40 in a workweek. Fringe benefits are not multiplied.
Records
Payroll records are kept for at least three years after the work is completed and made available to the contracting agency and the Department of Labor on request.
The contracting agency’s instructions control when they differ from this summary. Get started or see every state.