# Illinois — State employment law headcount triggers that deviate from federal thresholds

For Illinois, law category is workers compensation; state threshold is 1 or more; key differences is Sole proprietors, partners, corporate officers, LLC members: Not typically required but may opt in. Hazardous industries: Anyone in construction, trucking, or other extra-hazardous work must be covered, even owners; coverage / scope is Full-time, part-time, and most family members working for the business, recorded from its source on 2026-08-14.

- **State:** Illinois _(verified: appears in the quote below)_
- **Law category:** workers compensation _(our reading, not quoted from the source)_
- **State threshold:** 1 or more _(verified: appears in the quote below)_
- **Key differences:** Sole proprietors, partners, corporate officers, LLC members: Not typically required but may opt in. Hazardous industries: Anyone in construction, trucking, or other extra-hazardous work must be covered, even owners. _(verified: appears in the quote below)_
- **Coverage / scope:** Full-time, part-time, and most family members working for the business. _(verified: appears in the quote below)_

## What the source says

> Illinois | 1 or more | Full-time, part-time, and most family members working for the business. | Sole proprietors, partners, corporate officers, LLC members: Not typically required but may opt in. Hazardous industries: Anyone in construction, trucking, or other extra-hazardous work must be covered, even owners.

## Source

- https://www.workcompone.com/blog/minimum-number-of-employees-for-workers-comp-in-every-u-s-state/

Last verified: 2026-08-14. Review by: 2027-02-10.
Part of [State employment law headcount triggers that deviate from federal thresholds](https://referencesource.org/state-employment-law-headcount-triggers/).