Form Reg-1 Illinois - Find the forms you need to register your business in illinois for various taxes and purposes. It requires identifying the owners,. This form is for first time registrants or current registrants of businesses or organizations in illinois. Download and complete the form to register your business in illinois. The form includes information about your business name, address, owners,. You can file it online or download the pdf form from the revenue forms website.
It requires identifying the owners,. Download and complete the form to register your business in illinois. The form includes information about your business name, address, owners,. You can file it online or download the pdf form from the revenue forms website. Find the forms you need to register your business in illinois for various taxes and purposes. This form is for first time registrants or current registrants of businesses or organizations in illinois.