Davis-Bacon Prevailing Wage Guide Skip to main content
Productivity 10 min read Jun 8, 2026

Davis-Bacon Prevailing Wage Source Boundaries

Wage determinations, fringe prompts, certified payroll boundaries, apprentice review, and source gaps

Davis-Bacon and Related Acts work can involve wage determinations, classification decisions, fringe benefit credits, overtime overlays, apprentice program rules, certified payroll records, and agency contract clauses. This guide explains the source boundaries a contractor should review before relying on any local arithmetic screen.

Use the related prevailing-wage tool as a DBRA-style prompt only. It does not look up wage determinations, certify WH-347 records, approve apprentice rates, decide coverage, or replace qualified payroll, tax, legal, union, or contract-administration review.

Coverage Is a Source Question

Coverage depends on the contract, funding source, incorporated clauses, project type, work location, Related Act trigger, state or local prevailing-wage law, and agency instructions. Do not infer DBRA coverage from the existence of federal money or from a local calculator result.

Before pay, billing, or certification, identify the current contract clauses, the incorporated wage determination, the applicable revision, and any state/local or CBA/PLA overlay. When scope, funding, option years, modifications, or construction type are unclear, use current DOL, SAM.gov, agency, and qualified legal or contract-administration review.

Source check: A project may involve federal, federally assisted, state, local, tax-credit, grant, loan, CBA, or owner requirements. Keep the adopted source record with the payroll file.
Productivity

Davis-Bacon Prevailing Wage Calculator

Calculate Davis-Bacon prevailing wage pay with correct overtime rules where fringe stays flat. Compare cash-vs-benefits tax savings, annualize fringe credits, and compute apprentice wage steps.

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Wage Determination Rows

SAM.gov wage determinations are the official federal lookup source for wage and fringe rows, but the applicable row depends on the contract, locality, construction type, revision, classification, conformance status, and work actually performed. A local app cannot select the right row for the project.

Keep the wage determination, revision, classification basis, conformance correspondence, and any agency direction with the payroll review. If a worker performs multiple classifications, or if local job titles do not map cleanly to DOL classifications, reconcile the records before using the arithmetic output.

Warning: Do not auto-select rows: The calculator accepts user-entered rows only. It does not determine the applicable wage determination, schedule, revision, classification, or conformance.

Flat Fringe Overtime Prompt

DOL DBRA fringe guidance supports reviewing fringe as a flat hourly row for all displayed hours while the overtime premium is applied to the basic hourly row. The related app uses that deterministic prompt so reviewers can see the arithmetic.

That prompt does not decide CWHSSA coverage, FLSA regular rate, compensable time, state prevailing wage, cash-in-lieu tax treatment, CBA terms, or payroll-system setup. Treat the result as a source-boundary calculation reference until those records are reviewed.

Formula: Local prompt: Overtime row = basic hourly rate × 1.5, plus the entered fringe row at 1x. Verify the source record before payroll use.

Certified Payroll Boundaries

DOL WH-347 instructions provide a federal certified-payroll form context, but the related app does not produce WH-347, certify payroll data, or complete a Statement of Compliance. It exports a calculation reference with warnings and source pointers only.

Weekly payroll records, worker identity fields, daily hours, classification, gross pay, deductions, fringe-benefit credits, apprentice status, agency portal rules, prime/subcontractor responsibility, statement wording, retention, and certification authority must be handled from current project records and qualified review.

Warning: Export boundary: A PDF from the tool is not a WH-347 form, not a payroll record, and not a compliance certification.
Productivity

Apprentice Hours Tracker

Track OJT and classroom hours toward journeyman status for 15 trades. Shows wage step progression, projected completion date, and pace indicator.

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Review Gaps to Close

Prevailing-wage reviews commonly need source records for wage determination selection, classification, split classifications, fringe-benefit credits, cash-in-lieu treatment, annualization, apprentice registration and ratios, payroll-tax treatment, state/local overlays, and certified payroll statements.

The app helps make one arithmetic row visible. It does not determine violations, penalties, back wages, liquidated damages, debarment, criminal exposure, or audit outcome. Keep source records and qualified-review notes with the payroll file.

Tip: Documentation prompt: Pair any arithmetic export with the wage determination, time records, benefit records, apprentice records, payroll-tax assumptions, and reviewer notes.

Frequently Asked Questions

Coverage depends on contract clauses, funding source, project type, Related Act trigger, state/local rules, and agency requirements. The app and guide do not decide coverage.
The related screen uses a DBRA-style prompt where the fringe row stays flat while the basic hourly row receives the overtime multiplier. Actual pay still depends on CWHSSA, FLSA, state/local, CBA, contract, and payroll facts.
Apprentice use requires registered-program, progression, ratio, daily supervision, locality reciprocity, and fringe-provision review. The app screens an entered percentage only.
No. The export is a calculation reference with source warnings. WH-347 or equivalent certified payroll records must be completed from current payroll and contract records.
No. Penalties, back wages, withholding, debarment, and certification exposure depend on facts, current law, agency action, and qualified review.
Disclaimer: This Davis-Bacon guide is source-boundary information only. Current wage determinations, contract clauses, DOL/eCFR/SAM/WH-347/IRS sources, state/local rules, payroll records, and qualified prevailing-wage, payroll, tax, legal, union, and contract review control project-specific use.

Calculators Referenced in This Guide

Productivity Live

Overtime Pay Calculator

Calculate overtime pay with federal FLSA and state-specific daily OT rules for California, Alaska, Colorado, and Nevada. Handles anti-pyramiding, prevailing wage fringe, and common schedule presets.

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