How To Register Business With State

person on a computer

You must register with the Illinois Department of Revenue if you acquit business in Illinois, or with Illinois customers. This includes sole proprietors (individual or husband/wife/civil union), exempt organizations, or regime agencies withholding for Illinois employees.

To annals your business you must

electronically register through MyTax Illinois (approximately ane to two days to process);
consummate and mail Form REG-1, Illinois Business Registration Application, to us at the address on the form (Form REG-1 is available on our web site equally a backup and savable grade. Registration forms are besides bachelor by calling us at 1 800 356-6302.); or
visit 1 of our offices.

In addition, you lot may have to complete corresponding schedules, such as

Schedule REG-i-A, Liquor Information,
Schedule REG-1-C, Cigarette and Tobacco Products Data,
Schedule REG-1-D, Electricity Tax Self-Assessing Purchaser,
Schedule REG-1-G, Gas Utilise Tax Self-Assessing Purchaser,
Schedule REG-1-L, Illinois Business concern Site Location Data,
Schedule REG-i-MR, Illinois Cigarette Manufacturer's Representative,
Schedule REG-1-O, Owner and Officer Information,
Schedule REG-1-R, Responsible Political party Information, and
Schedule REG-i-T, Telecommunication Revenue enhancement Location Information.

Please allow 6 to 8 weeks for processing if you consummate and mail Form REG-1 to us.

If applicable, you will receive your certificate of registration and taxpayer ID (i.east., your "revenue enhancement" number) in the mail.

Register with us, using one of the in a higher place methods, before you lot make any purchases, sales, or when you hire an employee. You must display your Certificate of Registration in a prominent location in the place of concern to which it applies.

If your business is already registered and your information changes (due east.g., address change, buying change, boosted taxation responsibilities, new location), update your registration data

electronically through MyTax Illinois,
by calling united states at 217-785-3707, or
at one of our offices.

If you practise not,

your returns and payments may not exist processed correctly;
we may send you lot a tax beak or discover; and
y'all may non receive the forms or needed data about tax constabulary changes.

Contact united states, at 217-785-3707, if you do not receive forms to file for your revenue enhancement responsibilities.

If yous prefer, you may too contact our Fundamental Registration Partitioning by mail.

Central Registration Sectionalization
Illinois Department of Acquirement
PO Box 19030
Springfield IL 62794-9030

Additionally, find answers to your frequently asked tax questions and more with our Taxpayer Answer Eye. If yous are unable to discover your answer later searching the Taxpayer Reply Middle, yous may contact us via email by using the "Questions, Comments, or Requests" link at the bottom of every Question & Reply page.