Electrical Contractor License Requirements in Illinois

Overview — electrical licensing in Illinois

Illinois does not issue a state-level electrical contractor license. No state-level electrical license. Cities (Chicago especially) and home-rule municipalities have their own electrical licensing.. Most Illinois cities still require local contractor registration and per-job permits, and federal lead-paint / refrigerant rules apply regardless of state licensure. The absence of a state license does not mean "no rules".

License classes available

Illinois offers 1 electrical license class — pick based on the largest project you plan to bid:

• Chicago Electrical Contractor. Required for any electrical work in Chicago. Has master, supervising, and journeyman tiers.

Experience required

Chicago: 4 years experience + supervising electrician exam, then 1 year supervising + master exam. Other IL cities have similar 4-year experience requirements.

Exam — what you're tested on

Illinois requires a written examination administered by Chicago Department of Buildings; other IL cities use various providers. Topics covered:

• Chicago Electrical Code (modified NEC)
• Calculations
• Local amendments

Passing score: 70%.

Fees

• Application fee: $130
• Initial license fee: $250
• Renewal fee: $250 ( biennial)

Bond & insurance

Bond: Required — typically $10,000. Chicago requires $10,000 license bond for master electrician contractors.

General liability insurance: Minimum $1,000,000.

Workers' compensation: Required for any IL employer. Illinois Workers' Compensation Commission enforcement.

Commercial auto: Commercial auto required for company vehicles.

Continuing education

Illinois requires 16 hours of continuing education every 2 years. CE must come from approved providers — verify a course is approved before paying. Required topics typically include:

• Chicago Electrical Code updates
• NEC
• Safety

Reciprocity with other states

Illinois does not have formal electrical reciprocity with other states. Out-of-state contractors must complete the Illinois process from scratch.

Local permits and requirements

Every IL city/township requires electrical permits per job. Chicago and most Cook County suburbs require contractor licensing on top.

Common gotchas

Things that catch most applicants on their first license cycle in Illinois:

• Chicago has its own electrical code, separate from NEC — exam tests Chicago Code specifically.
• Suburban Cook County and collar counties (DuPage, Lake, Will) each may have separate licensing — no umbrella license.
• IL prevailing wage applies to public projects — separate registration required for those.
• IL workers' comp enforcement on electrical is among the most aggressive in the country.

Frequently asked questions

Can I work as an electrician anywhere in Illinois with one license?

No. Illinois has no state electrical license, and home-rule municipalities each set their own rules. Chicago, Naperville, Aurora, Schaumburg each have separate requirements.

How do I get a Chicago master electrician license?

4 years experience as journeyman → supervising electrician exam → 1 year as supervising → master exam. Plus pass background check, post $10k bond, secure $1M liability.

Why does Chicago use its own electrical code instead of NEC?

Chicago has used its own electrical code for over 100 years, predating widespread NEC adoption. Periodic updates align with NEC but Chicago retains specific provisions for historic buildings, conduit-only requirements, and other local preferences.

Do other Illinois cities accept the Chicago license?

Some suburban municipalities accept Chicago licensure as proof of competency for their own permitting. Many require their own license. Always check before bidding work outside Chicago.

What's the workers' comp rate for IL electrical contractors?

WC class 5190 (electrical wiring) base rate is around 3.5–5% of payroll for new accounts. Established contractors with no claims drop to 2–3%. Less expensive than roofing but still meaningful overhead.