How to Register Your Business in Illinois

Is your company hiring an employee in Illinois, but based in another state? Learn how to register your business in just a few simple steps.

Pilot Team
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From the Mississippi to Lake Michigan, from Chicago to Springfield, Illinois is characterized by beautiful rolling plains punctuated by vibrant urban centers. The Windy City was where the term “jazz” was first used. It is also home to the famous Chicago Bulls and the beloved Chicago Bears. Given the fierce loyalty Illinoians feel for their state and their sports teams, chances are if you hire one, they’ll want to stay there. Fortunately, no matter where your business is based, collaborating across state lines is easy in this era of remote work.

Bringing on a new employee can be exciting, but there’s often a lot to do as well. You want to onboard your new hire as quickly and smoothly as possible to ensure their success at your organization. But before you get started with onboarding, you’ll need to register your company with the state of Illinois.

Register your business in Illinois in two easy steps:

  1. Create an account with MyTax Illinois
  2. Obtain a tax account number from the Illinois Department of Revenue and Illinois Department of Employment Security by clicking on “Identify your business” and filling out the application form.

For income tax withholding, you’ll receive a taxpayer ID, and for unemployment taxes you’ll receive an account number. Both numbers should be issued to you immediately upon completing the application form.


Once you’ve been assigned your taxpayer ID and unemployment account number, you’ll be able to register new employees, file wage reports, and submit unemployment taxes online. Remember, you are responsible for paying an unemployment tax once you’ve paid $1500 in wages in a single calendar quarter, or employed someone for a portion of a day in 20 weeks in a calendar year. Although generally you are only required to file unemployment wage reports, employers with more than 25 employees in Illinois are required to file monthly wage reports to the Illinois Department of Employment Security.


Interested in expanding your team outside of the US as well? Pilot specializes in managing international payroll, benefits, and compliance for US-based companies, in one secure platform. Our team of HR and payroll experts is happy to guide you through any questions ✨

To learn more about Pilot, request a demo with one of our experts.


⚖️ Legal Disclaimer: The information contained in this site is provided for informational purposes only, and should not be construed as legal advice on any subject matter.


Photo by Joel Mott on Unsplash

Pilot Team
Pilot Team
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