Do you have to sign a W-9 form in Illinois?
How to get an Illinois W 9 form?
An Illinois W 9 form can be obtained in a few different ways. One way to get the form is to request it from the company that will be paying you. The company should have the forms available and can send one to you upon request.
Another way to get the form is to download it from the internet. The form can be found on the website of the Illinois Department of Revenue. Once you have downloaded the form, you will need to print it out and fill it in.
In addition, the form can be downloaded for free on the official website of the IRS and PDFliner
Can you sign a W-9 form electronically?
What happens if I don't fill out a W9?