Public work. Clear records. Correct pay.
Prevailing wage, certified payroll and union payroll.
Understand which rule comes from the project, which comes from a labor agreement, and how the payroll record supports the employee’s pay.
Start with your perspective, then use the common review workflow below. This U.S. guide links to official rules; it does not determine whether a particular contract is covered or replace its wage determination, collective bargaining agreement or agency instructions.
Start with the distinctions
Three connected ideas with different jobs.
| Term | What it means | What to verify |
|---|---|---|
| Prevailing wage | A required wage and fringe-benefit framework for covered work. Federal construction, federal service contracts and state or local public-work laws have different coverage and rules. | Project funding and contract, applicable law, location, work classification, effective determination and required benefits. |
| Certified payroll | A required payroll submission and certification for covered work. Under federal Davis-Bacon rules, covered contractors and subcontractors submit weekly payroll information with a signed Statement of Compliance. | The actual reporting authority, current instructions, submission method and deadline. A normal payroll register alone does not establish a complete certification. |
| Union payroll | Payroll administered under the applicable collective bargaining agreement (CBA), together with governing law. The agreement can address wage schedules, classifications, premiums, benefit funds, dues and other terms. | Bargaining unit, effective agreement and amendments, employee coverage, authorizations, fund rules, reporting and remittance requirements. |
A union-covered worker is not automatically on a prevailing-wage project. A covered prevailing-wage project can include workers without union representation. When requirements overlap, review each applicable obligation rather than treating one schedule as a substitute for the others.
DOL: Davis-Bacon overview · DOL: current WH-347 instructions · NLRB: collective bargaining rights
For the payroll professional
Build the pay from the work performed.
- Obtain the governing documents. Retain the contract’s wage determination and relevant modifications, project location, covered classifications, applicable CBA and agency reporting instructions. Confirm which version applies; the newest schedule found online may not be the contract’s controlling version.
- Capture work at the right level. Keep daily hours by worker, project and classification. Track changes of craft or project during the day. Separate straight-time and overtime hours and identify the actual workweek.
- Map each rate and benefit. Document the required basic wage, fringe obligation, cash paid and supportable benefit credit separately. A payroll earning code name does not prove that a payment satisfies a legal fringe obligation.
- Reconcile the full chain. Compare approved time to payroll hours; payroll to payment records; fringe credits to plan support and contributions; deductions to authorizations; and the certified submission to the final paid payroll.
- Control changes and corrections. Preserve original payroll and submissions. Record the reason, affected people and periods, correction owner, approved payment route and corrected report. An amended report alone does not pay an underpayment.
For union-covered work, build an effective-dated rate and fund matrix. Review initiation fees, dues, assessments and benefit contributions against the applicable agreement and legal authorization requirements. Employer fund contributions and employee deductions need separate codes and reconciliation.
Review overtime separately. Do not multiply the whole wage-plus-fringe package by 1.5 without checking the applicable federal, state and contractual rules. The treatment of a bona fide fringe contribution or cash in lieu can differ from ordinary cash wages.
DOL: Davis-Bacon compliance principles · DOL: fringe-benefit compliance
For the employer and project manager
Set up the project before the first hour is worked.
- Have the contracting authority or qualified adviser resolve coverage and missing or unclear classifications. Avoid guessing from the employee’s usual title.
- Budget wages, required fringes, contractual premiums, employer taxes and administration as distinct costs. A bid’s labor estimate is not authority to reduce required pay.
- Give supervisors a usable project/classification time-capture process and a deadline for factual corrections. A manager’s approval does not establish that the classification or rate is lawful.
- Assign separate preparation, review, certification and submission responsibilities where practical. The certifying official needs a factual basis for the statement being signed.
- Confirm responsibilities across prime contractors and subcontractors, including review and escalation. Using a payroll vendor does not remove the employer’s own obligations.
- Maintain required notices, rate schedules and records. Check federal, state, local and agreement-specific retention and production requirements.
- Review fund remittances, rejected payments, apprentices’ eligibility and permitted ratios, and open wage exceptions before closing the period.
Keep a written decision log for project setup and unusual payments. Where both a public-work requirement and a CBA apply, obtain a documented interpretation of overlapping terms; do not assume one automatically cancels the other.
DOL: construction FAQs · NLRB: employer and union responsibilities
For the employee
Know what to compare and what to ask.
Your job title, the work you actually perform and the project you work on can matter. Keep your own record of dates, locations, duties and hours. Compare it with your pay statement and the information posted or provided for the project.
- Ask which schedule applies. “What project, classification and effective wage schedule were used for these hours?”
- Ask how benefits are provided. “Which amount is cash pay, which is cash in lieu of benefits, and which goes to a benefit plan or fund?” A benefit contribution may not appear as extra take-home pay.
- Ask about a deduction. Request the deduction’s purpose and applicable authorization or agreement provision. A union benefit contribution is not necessarily an employee deduction.
- Raise an issue promptly. Provide the affected period, hours or line item through the employer’s secure payroll channel. Ask who owns the review and when the next update will come.
- Use the right support route. A union representative can help interpret the agreement. DOL Wage and Hour or the relevant state labor agency can explain applicable wage protections. Different agencies handle different issues. NLRB links describe employment covered by the NLRA; public-sector and other excluded workers may have different labor-relations agencies.
P.A.Y. cannot see your employer’s payroll, approve a correction or determine your legal claim. Do not post Social Security numbers, bank details, medical information or unredacted pay records in a public discussion.
DOL: wage complaint information · State labor offices · NLRB: workplace rights and coverage
Review topics
What changes the payroll answer?
Construction work and federal service contracts
Davis-Bacon and Related Acts (DBRA) and the Service Contract Act (SCA) are separate frameworks. Match the contract and actual work to the applicable rule. Do not copy construction classifications, benefit methods or the WH-347 reporting process into every service contract.
SCA wage and fringe obligations also need their own supporting records. A higher cash wage does not, by itself, demonstrate that a separately required fringe obligation was properly satisfied. Read DOL’s SCA fringe guidance.
Certified payroll and the current WH-347
The federal WH-347 form is optional; the required weekly payroll information and signed Statement of Compliance are not optional for covered work. Follow the current official instructions and the contract’s submission route. State systems and awarding agencies may require additional information or a different portal.
A certification is a consequential representation by an authorized person. Check classifications, hours, actual wages, benefits and deductions against supporting records before signing. Use the live DOL form and instructions rather than an old saved form. This page does not generate or submit a certified payroll.
Benefit credits, cash in lieu and tax treatment
Document what the required fringe amount is, what the employer actually provides and what may legally count toward the obligation. Legally required employer Social Security and unemployment taxes, workers’ compensation costs and ordinary administrative costs should not simply be entered as a benefit credit. Eligible bona fide plan benefits need their own supported review; this is not an exclusion of every insurance benefit. Some plans and credit methods need special review.
Cash in lieu affects the paycheck differently from an employer contribution to a plan. Prevailing-wage credit eligibility and payroll taxability are separate questions. Follow the appropriate tax treatment and reporting rules for the payment or benefit as well as the public-work rules. See the Benefit Guide and DOL fringe guidance.
Apprentices and classification changes
Do not use an apprentice rate based only on a job title or employee age. Verify the applicable registered program, individual registration or permitted status, progression, required pay and allowable apprentice-to-journeyworker ratio. Review the actual work and any change of classification. Escalate a missing classification through the appropriate process rather than inventing a rate. DOL’s construction FAQs explain the federal requirements.
Union agreements, effective dates and remittances
Create a working matrix for the bargaining unit: classification, step, effective date, cash rate, premiums, fund contribution basis, employee deductions, reporting fields and remittance instructions. Record the agreement or amendment supporting each entry. Avoid applying a new schedule to an earlier period without reviewing retroactive terms.
Reconcile hours or earnings reported to each fund against payroll, then reconcile contributions and employee deductions to the amount actually remitted. Investigate rejected files and unmatched workers. Use the agreement and plan documents for deadlines and eligibility; they are not uniform across unions. NLRB: collective bargaining.
State and local public-work requirements
Federal coverage is not the end of the review. State or local laws can have different thresholds, schedules, apprentice rules, electronic reporting and enforcement routes. A federal summary table is a starting index, not a complete current project determination. Verify the state agency and contract before relying on a number.
Current federal rule and court notices
Before deciding a difficult coverage question, check DOL’s current Davis-Bacon page for court orders and enforcement notices. As reviewed on 11/03/2026, that page describes an injunction affecting three provisions of the 2023 final rule. This guide does not resolve those disputed coverage situations. Read DOL’s current construction notice.
Fictional reconciliation example
Do the fringe dollars have support?
Assume a confirmed project determination requires a $32 basic hourly wage plus $12 in fringes, and this example has 40 straight-time hours. Assume only $10 per hour of the employer’s plan contributions is verified as creditable for these hours, and there is no other qualifying credit or cash in lieu.
| Review line | Arithmetic | Amount |
|---|---|---|
| Basic wages | 40 × $32 | $1,280 |
| Required fringes | 40 × $12 | $480 |
| Supported credit | 40 × $10 | $400 |
| Unresolved fringe gap | $480 − $400 | $80 |
The review identifies an $80 gap under these assumptions. Verify the facts and authorized remedy, make the required payment or contribution, and correct affected records and submissions. Changing the report’s credit to $480 without support does not resolve the gap. This example does not establish a general fringe-credit method, overtime rate or tax result.
A repeatable review
From approved time to supported submission.
- Confirm coverage, project and controlling documents.
- Review daily hours, locations and classifications.
- Validate basic rates, premiums and fringe support.
- Review apprentice status, progression and permitted ratios.
- Calculate wages, applicable taxes and authorized deductions.
- Compare payroll with approved source time and rate changes.
- Verify payments and contributions; resolve discrepancies.
- Reconcile certified fields and union or fund reports.
- Have an authorized person review and certify the facts.
- Submit through the required route; keep actual acceptance evidence.
- Track rejected reports, payments and remittances through resolution.
- Preserve the audit trail and communicate confirmed pay impact promptly.
A successful upload is not proof of accurate payroll or paid wages. A clean payroll register is not proof that the project’s report, benefit contributions or union remittance was accepted.