PayrollproofGuides

Certified payroll in Washington

Washington's system runs on two L&I filings — an intent before payment and an affidavit before retainage release — rather than a weekly form to the awarding body. The items below link to the statute they come from. Federally funded Washington projects additionally follow the federal weekly rule.

Statute

Washington's prevailing wage law is RCW Chapter 39.12. Under RCW 39.12.040, on public works contracts over $10,000 the contractor and each subcontractor file a Statement of Intent to Pay Prevailing Wages — listing the rates and estimated worker count per classification — approved by the Department of Labor & Industries' industrial statistician before payment.

Source: RCW 39.12.040 (verified 2026-08-24)

Affidavit of wages paid

Under RCW 39.12.040, after completion each contractor and subcontractor submits an Affidavit of Wages Paid, certified by the industrial statistician, before retained funds are released. A simplified direct-filing procedure exists for projects of $5,000 or less.

Source: RCW 39.12.040 (verified 2026-08-24)

On federally funded work, the federal rules apply too

Certified payroll contents

Under 29 CFR 5.5(a)(3)(ii), contractors must submit certified payrolls weekly for each week in which covered work is performed. The payroll needs only an individually identifying number for each worker — for example, the last four digits of the worker's Social Security number — and each submission carries a signed Statement of Compliance. Optional Form WH-347 satisfies the requirement.

Source: 29 CFR 5.5 (Cornell Legal Information Institute) (verified 2026-08-24)

Where determinations are published

Davis-Bacon wage determinations are published by the U.S. Department of Labor on SAM.gov, searchable by WD number or by location and construction category.

Source: SAM.gov Wage Determinations (verified 2026-08-24)

This page summarizes public statutes with sources; it is not legal advice. If your job is federally funded, set up the job free and Payrollproof prepares the weekly WH-347-equivalent report from the published wage determination for your county and trade.