IDOL Certified Transcript of Payroll reports. Illinois prevailing wage validation. Monthly reporting handled.
14-day free trial · 3 free reports · $0 setup · No credit card required
820 ILCS 130 requires you to pay workers the prevailing wage for their craft and county on Illinois public works. The weird part: Illinois is the only state that does it monthly instead of weekly.
Monthly, not weekly
Unlike federal Davis-Bacon or California DIR, Illinois wants a monthly Certified Transcript of Payroll. Due by the 15th of the following month.
County-by-county rates
IDOL publishes prevailing wages for all 102 Illinois counties. Updated monthly to match current collective bargaining agreements.
No project dollar minimum
Unlike Davis-Bacon ($2,000) or California ($1,000), IL's Prevailing Wage Act applies to most public works no matter the contract amount.
Base rate + fringe
Pay the base hourly rate plus fringes (health, pension, training, vacation). Fringes can be cash or contributions to bona fide plans.
IDOL portal only
Everything goes through the IDOL Certified Transcript of Payroll online portal. Paper's done.
Signed compliance statement
Every monthly transcript needs a signed statement of compliance saying workers got the prevailing wage and were classified correctly.
Everything you need for IDOL-compliant Certified Transcript of Payroll.
Illinois does things differently from the federal WH-347. Know the differences.
| Requirement | Federal WH-347 | Illinois Transcript |
|---|---|---|
| Reporting frequency | Weekly | Monthly (by the 15th) |
| Governing law | Davis-Bacon Act | IL Prevailing Wage Act (820 ILCS 130) |
| Issuing agency | US DOL | IDOL |
| Project threshold | $2,000+ | No minimum |
| Rate source | DOL wage determinations | IDOL county schedules (monthly) |
| Submission method | To contracting agency | IDOL online portal |
| Penalty for violation | Back wages + liquidated damages | 20%-50% penalty + 2% per month |
Illinois is the odd one out — monthly certified payroll instead of weekly. That changes the operational rhythm for contractors used to filing every Friday.
Ready to simplify Illinois compliance?
Try CertifiedPayrollPro free for 14 days — 3 certified payrolls included. No credit card required.
Start Free TrialIt's the monthly Certified Transcript of Payroll that every contractor and sub sends to IDOL on Illinois public works jobs. You report hours, classifications, wages, and fringes. It proves you're paying workers right under the Illinois Prevailing Wage Act.
820 ILCS 130. It requires you to pay workers the prevailing wage for their trade and county on any public works job. IDOL publishes rates by county and craft, and you submit monthly transcripts through the IDOL portal.
Monthly, not weekly. This trips up contractors moving between states. Reports are due by the 15th of the following month, through the IDOL Certified Transcript of Payroll portal.
Illinois's own certified payroll format. Has worker name, last 4 of SSN, occupation, daily hours, hourly rate, gross amount, fringes paid, and a signed compliance statement. We generate IDOL-compliant transcripts automatically.
Any contractor or sub working an Illinois public works job — state, county, city, school district, park district — files monthly. No dollar threshold on most public works contracts. If it's public works in IL, you file.
IDOL sets them based on collective bargaining agreements in each county. Rates get published county-by-county and craft-by-craft, updated monthly. You pay the rate in effect for the month the work's done.
IDOL hits you with back wages plus 20% penalty on first violations, 50% on repeats. Add punitive damages of 2% per month, 4-year debarment from public works, and criminal prosecution for bad ones. Two violations in 5 years and you're debarred automatically.
Yes. We build Illinois Certified Transcript of Payroll reports that meet IDOL's rules: monthly reporting cycles, county-by-county wage checks, signed compliance statement. Pro plan and above.
Go Pro for IDOL transcript generation, monthly reporting automation, and county-by-county wage checks.
Start Free Trial14-day free trial · 3 free reports · $0 setup