Illinois Form Reg-1 - To complete your registration, go to. For information and forms related to registering an unemployment insurance tax account, visit the illinois department of employment security’s. Register faster using mytax illinois, our online account management program, available at. Identify your business or organization check the organization type that applies to you:1 federal employer identification. May 2023 for businesses without a mytax illinois logon:
Register faster using mytax illinois, our online account management program, available at. To complete your registration, go to. Identify your business or organization check the organization type that applies to you:1 federal employer identification. For information and forms related to registering an unemployment insurance tax account, visit the illinois department of employment security’s. May 2023 for businesses without a mytax illinois logon: