To form an LLC in Illinois you file Articles of Organization (sometimes called a Certificate of Formation) with the state and pay a one-time filing fee of $150. Illinois is around the middle for LLC filing fees (number 37 of 51). You also need a registered agent with a Illinois address, and most owners get an EIN from the IRS so they can open a bank account and pay taxes.
Illinois LLC costs at a glance
| Item | Cost | When |
|---|---|---|
| Illinois LLC filing fee | $150 | One time, paid to the state |
| ZIS Consultants service fee | $149 | One time |
| Registered agent (optional, if you don’t have a Illinois address) | $50 first year | Renewal price depends on the state |
| EIN from the IRS (optional) | $20 | One time |
| Operating agreement (optional) | $49 | One time |
| Illinois annual or periodic report | $75 | Annual, before the first day of the anniversary month |
Illinois requires a report: annual, fee $75, due before the first day of the anniversary month.
Faster processing in Illinois
Illinois offers paid expedited filing on top of the normal fee:
- 24-hour: +$100
Tell us in your order if you need it and we’ll add it at the state’s price.
How to form your Illinois LLC with ZIS Consultants
- Pick your company name and type. LLC, S Corp or C Corp. We check the name is available in Illinois.
- Fill in the online order form. About 10 minutes: owners, address, and the add-ons you want. Nothing is preselected.
- We file with Illinois. We submit your formation documents and pay the $150 state fee on your behalf.
- Get your documents. Approved Articles, EIN letter and operating agreement (if ordered) are emailed to you.
Frequently asked questions
How much does it cost to start an LLC in Illinois?
The Illinois state filing fee is $150. With ZIS Consultants the total is $299 (our $149 service fee plus the state fee). A registered agent ($50 first year), EIN ($20) and operating agreement ($49) are optional add-ons.
Does Illinois require an annual report for LLCs?
Yes. Illinois requires a report (annual). The fee is $75 and it is due before the first day of the anniversary month.
Do I need to live in Illinois to form an LLC there?
No. Anyone can form an LLC in Illinois, including people living in other states or outside the US. You do need a registered agent with a physical address in Illinois, which we can provide for $50 for the first year.
How much does a Illinois corporation cost?
The Illinois filing fee for a corporation (S Corp or C Corp) is $150. Our service fee is the same $149 for every company type.
Can I get an EIN for my Illinois LLC?
Yes. Add the EIN option ($20) to your order and we apply to the IRS for you once the state approves your LLC.
Fees last checked Oct 15, 2026. States change fees from time to time, so we confirm the exact amount before filing.