HR software for construction: certified payroll and Davis-Bacon picks for 2026

Construction shares six structural HR characteristics that distinguish it from office-based or retail businesses: certified payroll requirements on Davis-Bacon projects, prevailing wage rates by trade and geography, multi-state job site tax exposure, union vs open shop dynamics, OSHA 300 recordkeeping in a high-hazard industry, and workers comp class codes that drive premium calculations. Together these make general-purpose HR platforms inadequate for any contractor working on federally-funded projects.

Davis-Bacon certified payroll is the most distinctive. Federal construction projects over $2,000 require weekly certified payroll reports on Form WH-347 submitted to the funding agency, with the contractor and a principal officer signing a compliance statement under penalty of perjury. The reports include employee name, classification, hours worked per day, gross wages, deductions, net pay, fringe benefits, and any apprentice ratios. Failure to submit accurate reports or pay prevailing wages can result in contract debarment for up to 3 years per 29 CFR 5.12.

Prevailing wage handling means workers must be paid at or above the rate published by the US Department of Labor for their classification in the geographic area of the project. Wage determinations are published by county and updated periodically; a single project may involve carpenters at one rate, electricians at another, and labourers at a third. Modern construction payroll platforms maintain prevailing wage tables and apply rates automatically based on project assignment.

Multi-state job site tax exposure is structural for any contractor that bids on out-of-state work. Each state where work is performed creates state income tax withholding obligations for employees working in that state, regardless of where the employee or company is based. Reciprocity agreements simplify some cross-border situations (e.g. NJ-PA, MD-DC, IL-IA) but not most. Construction-specialised platforms handle this with project-state allocation; general platforms can handle it but require more configuration.

Union workforces add per-collective-bargaining-agreement wage rates, union dues deductions, fringe benefit contributions to union funds (health, pension, training), and union reporting requirements. Open shop is simpler. Mixed operations exist. The construction-specialised platforms handle all three; general HR platforms can handle open shop cleanly but struggle with deep union workflows.

OSHA 300 recordkeeping applies to construction with particular weight. Construction has the highest recordable injury rate of any industry per Bureau of Labor Statistics data. Form 300 (injury and illness log), Form 301 (incident report), and Form 300A (annual summary) must be maintained for each workplace and posted from 1 February to 30 April each year. The OSHA Severe Injury Reporting requirements (8-hour fatality reporting, 24-hour hospitalisation/amputation/eye loss reporting) apply with particular force.

Workers comp class codes drive insurance premium calculations. Construction has 50+ NCCI class codes covering different trades, with rates varying enormously: code 5403 (carpentry, residential) might be 8 to 12 percent of payroll while code 5551 (roofing) can be 25 to 40 percent of payroll in many states. Modern HR platforms allow per-employee class code assignment for accurate premium calculation; pay-as-you-go workers comp billing is common in construction and requires platform support.

Form WH-347 (Statement of Compliance) is the weekly certified payroll report required for Davis-Bacon covered projects. The form must be submitted to the contracting agency within 7 days of the regular pay date. The report includes per-employee data: name, last 4 of SSN, work classification (must match an approved Davis-Bacon classification for the area), hours worked per day and per week, hourly rate, gross wages, all deductions itemised, and net pay.

The signed compliance statement on Form WH-347 attests under penalty of perjury that the contractor has paid prevailing wages, complied with apprentice ratio requirements, and has not made any unauthorised deductions. The statement is signed by the contractor or a principal officer; subcontractors submit certified payroll up the chain to the prime contractor who collects and submits to the contracting agency.

Common compliance pitfalls. First, classification errors: assigning a labourer to do electrical work and paying labourer wages instead of electrician wages. Second, fringe benefit calculation errors: the prevailing wage determination splits between base hourly wage and fringe benefits; if fringe benefits are paid as additional cash wages instead of actual benefit contributions, the cash component must equal or exceed the fringe benefit rate. Third, apprentice ratio violations: many federal projects require apprentice-to-journey ratios that limit how many apprentices can be on-site relative to journey-level workers. Fourth, missed week submissions: weekly reports are required even for weeks with zero hours on the project. Reference: DOL Davis-Bacon and Related Acts.