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Contractor License in Illinois: Cost, Steps & How to File

Every Illinois business owner eventually needs to answer the contractor license question: what does it cost, how long does it take, and where do I actually file? This page answers all three with the current Illinois numbers, plus the government link to start the application.

Typical cost

$100–$5000

Timeline

30–180 days

Renewal

Every 1-2 years, most states require continuing education

Who needs it

general contractors and specialty trades (electrical, plumbing, HVAC, roofing)

Steps to get a contractor license in Illinois

Step 1: Verify the state license threshold — some states require a license for any job over $500, others $2,500 or $25,000
Step 2: Meet the experience requirement (usually 2-4 years working under a licensed contractor)
Step 3: Pass the required exams (usually two: trade exam + business/law exam)
Step 4: Post a contractor's bond (state-specified, typically $5k-$25k)
Step 5: Provide proof of general liability and workers' comp insurance
Step 6: Apply through the state contractor licensing board and pay licensing fees
Step 7: Fingerprint and background check (most states)

Required documents

Proof of experience letters
Insurance certificates
Bond
Exam certifications
Fingerprints

Where to file in Illinois

Business filings: https://www.ilsos.gov/departments/business_services/home.html
Secretary of State: https://www.ilsos.gov
Tax authority: https://tax.illinois.gov
Labor/workforce: https://ides.illinois.gov

Heads up: A common Illinois mistake: assuming this contractor license covers your city and county requirements too. It usually doesn't. Check your city's business division separately — most cities in Illinois require their own general business license on top of state filings.

Related permits in Illinois

Business License in Illinois Employer Registration in Illinois

Frequently asked questions

How much does a contractor license cost in Illinois?

Typical cost ranges from $100–$5000. The exact fee depends on your specific business type, city, and any expedited processing you choose.

How long does it take to get a contractor license in Illinois?

Most Illinois applications complete in 30–180 days. Same-day or next-day processing is often available for an added fee at the state level.

Do I need a contractor license if I'm just starting a home business in Illinois?

In most cases, yes — even home-based businesses in Illinois are subject to the same state filing rules. Local rules (city and county) may add a home occupation permit on top.

This page reflects general Illinois filing rules as of 2026. Fees and processing times change; verify the current amounts with the linked state agency before filing.