What You'll Learn
- The five most common WH-347 errors that put contractors at risk
- How each mistake can trigger a DOL investigation
- Real penalties including back-wage liability and debarment
- Practical steps to prevent every mistake before submission
The WH-347 form is the standard certified payroll report required on all Davis-Bacon covered projects. It looks straightforward — worker names, classifications, hours, wages, deductions — but small errors on this form can snowball into serious federal compliance problems. The Department of Labor's Wage and Hour Division (WHD) reviews these forms closely, and patterns of mistakes are one of the most common triggers for formal investigations.
In this article, we break down the five most frequent WH-347 mistakes we see contractors make, explain why each one matters, what penalties you could face, and how to make sure it never happens on your projects.
Mistake #1: Wrong Worker Classifications
What It Is
Worker misclassification is the single most common Davis-Bacon violation. It happens when a contractor lists a worker under the wrong trade or skill classification on the WH-347 — for example, reporting a journeyman carpenter as a "helper" or "laborer" to justify paying a lower prevailing wage rate.
The DOL has very specific wage determinations for each project that list approved classifications and their corresponding wage and fringe benefit rates. Every worker on your certified payroll must be classified according to the actual work they perform, not the title you assign them in your internal system.
Why It Matters
The Department of Labor views misclassification as a form of wage theft. If a worker is performing carpenter work but classified and paid as a laborer, they are being underpaid — potentially by $10-$20 per hour or more depending on the wage determination. Across multiple workers and weeks, this adds up to significant back-wage liability.
What the Penalty Is
- Back wages: You must pay the difference between what was paid and the correct prevailing wage rate for every affected hour, plus fringe benefits owed
- Contract termination: The contracting agency can terminate your contract for cause
- Debarment: Willful or repeated violations can result in a 3-year debarment from all federal contracts
- Liquidated damages: Up to $27 per day per underpaid worker for overtime violations
How to Avoid It
Classify workers based on the actual work performed, not their job title or internal role. Before the project starts, review the wage determination and map each worker to the correct classification. If a worker performs duties across multiple classifications in a single day, they must be paid the highest applicable rate — or you must keep detailed time records for each classification.
CertifiedPayrollPro includes built-in wage determination lookups that auto-populate the correct classifications and rates for your project location. When you assign a worker, the system flags any rate that falls below the required prevailing wage before you submit.
Mistake #2: Not Including Fringe Benefits Properly
What It Is
Davis-Bacon prevailing wage rates have two components: the basic hourly rate and the fringe benefit rate. Many contractors either forget to account for the fringe portion entirely, report it incorrectly on the WH-347, or fail to demonstrate how fringe obligations are being met (cash payment vs. bona fide benefit plans).
The WH-347 requires you to indicate on the Statement of Compliance (page 2) whether fringe benefits are paid in cash, contributed to approved plans, or a combination of both. Leaving this section blank or checking the wrong box is an immediate red flag.
Why It Matters
Fringe benefits can represent 30% or more of the total prevailing wage obligation. Failing to pay fringes properly is functionally the same as underpaying workers. The DOL does not accept "I didn't understand the fringe requirement" as a defense — it is your legal obligation to calculate and pay or contribute the full amount.
What the Penalty Is
- Back payment of fringe benefits: The full fringe amount owed for every worker-hour on the project
- Interest and administrative costs: Depending on how long the violation persisted
- Increased scrutiny: Once a fringe violation is found, investigators typically audit all of your current and recent projects
How to Avoid It
Know the fringe obligation for every classification on your wage determination. Decide early whether you will pay fringes in cash (added to the hourly rate on each paycheck) or contribute to qualifying benefit plans (health insurance, retirement, etc.). Document your approach and be consistent.
CertifiedPayrollPro automatically calculates fringe benefit obligations alongside base wages, ensuring the total compensation meets or exceeds the prevailing wage determination. The system generates the Statement of Compliance with the correct fringe method pre-selected, so you never submit a form with missing fringe documentation.
Mistake #3: Late Submissions (Missing the Weekly Deadline)
What It Is
Federal regulations require certified payroll reports to be submitted weekly — specifically, within seven days after the end of each payroll period. Many contractors fall behind, submitting reports monthly, in batches, or only when the general contractor or agency asks for them. Some don't submit at all until close-out.
Why It Matters
Late submissions are a compliance violation in themselves, but they also raise a much bigger concern for investigators: if you can't file your payroll reports on time, are you actually tracking and paying wages correctly in real time? Late filings are a strong signal that something else may be wrong, and they frequently trigger deeper audits.
Additionally, general contractors are responsible for collecting and submitting subcontractor payrolls. If your reports are late, you're creating compliance risk for the GC — who may choose not to work with you on future projects.
What the Penalty Is
- Contract payment withholding: Agencies can withhold progress payments until payrolls are current
- Breach of contract: Consistent late filings can be treated as a material contract breach
- Monetary penalties: Up to $27 per day per affected worker for related wage violations discovered during investigation
How to Avoid It
Build certified payroll into your weekly workflow, not something you catch up on at the end of the month. Set a recurring reminder for the day after each pay period ends. Make sure whoever prepares your payroll understands the weekly deadline is non-negotiable on prevailing wage projects.
CertifiedPayrollPro sends automatic deadline reminders and tracks submission status for every active project. The dashboard shows exactly which payroll periods are pending, due, or overdue — so nothing falls through the cracks even when you're managing multiple projects simultaneously.
Mistake #4: Math Errors in Deduction Columns
What It Is
The WH-347 requires detailed reporting of all deductions — federal and state taxes, FICA, union dues, health insurance premiums, garnishments, and any other amounts withheld from a worker's gross pay. Math errors here are surprisingly common: columns that don't add up, deductions that exceed gross pay, or net pay figures that don't reconcile with the reported gross and deduction amounts.
Why It Matters
Arithmetic errors undermine the credibility of your entire payroll submission. An investigator who finds math errors will question whether the underlying wage data is accurate. Even innocent calculation mistakes suggest carelessness that warrants further review.
More importantly, unexplained or excessive deductions can indicate kickback schemes — where a contractor pays the prevailing wage on paper but takes money back through fabricated deductions. The DOL's Anti-Kickback Act (Copeland Act) makes this a federal crime.
What the Penalty Is
- Form rejection: The contracting agency may reject your payroll and require resubmission, delaying payment
- Investigation trigger: Repeated math errors trigger audit flags in DOL's review system
- Criminal liability: If errors are interpreted as concealing kickbacks, penalties include fines up to $5,000 and imprisonment
How to Avoid It
Always double-check your math before signing and submitting. Make sure gross pay minus total deductions equals the reported net pay for every worker on every line. Verify that deduction descriptions are clear and that each deduction type is properly categorized.
CertifiedPayrollPro eliminates manual math entirely. The system auto-calculates gross pay, deductions, and net pay based on your payroll data, and runs validation checks before generating the WH-347. If any line doesn't reconcile, you'll see a clear error message before the form is finalized — not after it's been submitted and flagged.
Mistake #5: Missing or Incorrect Certifier Signature
What It Is
Page 2 of the WH-347 is the Statement of Compliance — a legal certification that the payroll information is correct, that all workers were paid the prevailing wage, and that no prohibited deductions were made. This page must be signed by an authorized representative of the contractor. Missing signatures, unsigned submissions, or signatures from unauthorized personnel are all violations.
Why It Matters
The signature on the Statement of Compliance is not a formality — it is a legal declaration under penalty of perjury. Submitting a WH-347 without a proper signature means you haven't actually certified your payroll. The form is incomplete and non-compliant, regardless of whether the underlying data is accurate.
The person who signs must have actual knowledge of the payroll data and the authority to certify on behalf of the company. Having a random office employee sign without reviewing the data is itself a compliance risk.
What the Penalty Is
- Automatic rejection: Unsigned or improperly signed payrolls are treated as not submitted
- False certification: Knowingly signing a false Statement of Compliance can result in criminal charges under the False Statements Act (18 U.S.C. 1001), with fines and imprisonment
- Personal liability: The individual signer can be held personally liable for false certifications
How to Avoid It
Designate one or two authorized signers in your organization who understand certified payroll requirements. Establish a review process where the signer reviews the payroll data before certifying. Never sign a blank or incomplete form — review every line before signing.
CertifiedPayrollPro includes a built-in review and digital signature workflow. Authorized certifiers can review the complete payroll, verify all calculations and classifications, and apply their digital signature directly in the system. The platform won't allow form generation without a completed certification, ensuring you never accidentally submit an unsigned report.
Don't Let These Mistakes Cost You Your Federal Contracts
Every one of these five mistakes is preventable. The contractors who get into trouble aren't usually trying to cheat the system — they're overwhelmed by paperwork, using error-prone spreadsheets, or simply don't understand the requirements well enough. The WH-347 demands precision and consistency, and manual processes make that incredibly difficult at scale.
The good news is that purpose-built certified payroll software eliminates the most common error categories entirely. Auto-calculations prevent math errors. Built-in wage determinations prevent misclassification. Deadline tracking prevents late submissions. And digital certification workflows prevent missing signatures.
Ready to Eliminate WH-347 Errors?
CertifiedPayrollPro catches mistakes before they become violations. Auto-calculations, compliance alerts, and built-in wage determination lookups keep your payroll reports accurate and on time.
