United States · Illinois

Start a staffing agency in Illinois 

Starting a staffing agency in Illinois: Day and Temporary Labor Services Act registration, equal pay obligations for long-assignment temps, insurance, and funding payroll in Chicago.

Written and reviewed by James Doyle, Investor and exited founder· Updated 27 August 2026

The short answer

Illinois is one of the most regulated staffing markets in the US. Agencies supplying day and temporary labour must register with the Illinois Department of Labor under the Day and Temporary Labor Services Act, meet notice, transport and record-keeping duties, and pay long-assignment temps comparably to a client's own comparable employees. Budget for compliance before growth.

Where the demand is in Illinois

Strongest markets: Chicago, Naperville, Rockford, Joliet.

  • Light industrial, warehousing and food production across the Chicago metro
  • Healthcare and allied staffing throughout Cook County and downstate
  • Professional and financial contract roles in the Loop
  • Transport and logistics along the I-55 and I-80 corridors

Registrations, licensing and insurance

  1. 01

    Form an LLC or corporation with the Illinois Secretary of State and obtain an EIN

  2. 02

    Register with the Illinois Department of Employment Security for unemployment insurance and with the Department of Revenue for withholding

  3. 03

    Register under the Day and Temporary Labor Services Act with the Illinois Department of Labor if you supply day or temporary labour, and carry the required bond and insurance

  4. 04

    Chicago has its own fair workweek and paid leave ordinances that reach covered employers, including staffing suppliers

Requirements change. Confirm current obligations with the relevant state agency and a staffing-literate attorney before you trade — this is general guidance, not legal advice.

Payroll and compliance details that catch founders out

  • Equal pay obligations for temporary workers on longer assignments change your margin maths — model the pay step-up before you quote a bill rate
  • Detailed assignment notices and record-keeping are mandatory, not best practice
  • Penalties for non-registration are meaningful and enforcement is active

Funding payroll in Illinois

Illinois compliance costs are front-loaded, and light industrial margins are thin, so the funding line has to cover both the payroll gap and the administrative load. Model the long-assignment pay step-up into your bill rate from day one or it will eat the margin later.

Questions founders ask

Do staffing agencies need to register in Illinois?

Yes for day and temporary labour. The Day and Temporary Labor Services Act requires registration with the Illinois Department of Labor, along with bonding, notices to workers and record-keeping. Confirm whether your specific placement model falls inside the Act before you trade.

What is the equal pay rule for temps in Illinois?

Illinois requires that temporary workers placed with a client beyond a defined assignment length be paid at least as much as a comparable directly-employed worker at that client, including equivalent benefits or their cash value. It materially affects the gross margin on long assignments.

How much working capital does a staffing agency need here?

It is driven by payroll frequency and client payment terms, not by the state. If you pay contractors weekly and your clients pay in 45 days, roughly six to seven weeks of gross payroll is tied up per contractor at any time. Most founders fund that with invoice factoring or payroll funding rather than cash.

Stay close to the money

The recruitment funding briefing

One email a month: funding terms we are seeing, margin benchmarks, and what buyers are paying for agencies. Written for founders, not for a mailing list.

Launching in Illinois?

We match staffing founders with operators who have already built in your market, and then with the funders and investors worth having.