Illinois LLC: fees, how to start and deadlines

Illinois law sets a $150 fee for LLC Articles of Organization and a $75 annual report, due in the 60 days before your anniversary month.

Filing fee$150

Ongoing state fee$75 yearly

DeadlineDelivered within the 60 days before the first day of the anniversary month.

Illinois figures come from state law (805 ILCS 180), not from the Secretary of State website. Any extra online processing or expedite fees the Secretary of State charges are not confirmed yet.

How to start an LLC in Illinois

Pick a name and check it is available with the Secretary of State.
Choose a registered agent: an Illinois resident, or another person allowed to do business in Illinois, with a registered office in the state.
File Articles of Organization and pay $150 ($400 for a series LLC).
Get an EIN from the IRS. It is free.
File the annual report ($75) within the 60 days before the first day of your anniversary month.

Formation filing: Articles of Organization with the Illinois Secretary of State. Sources: ilga.gov: 080501800K50-10, ilga.gov: 080501800K50-1, ilga.gov: 080501800K50-15

Illinois LLC annual report

Fee	$75 (+$50 per series)
Deadline	Delivered within the 60 days before the first day of the anniversary month
Penalty	$100 (+$100 for each extra year) if not fixed before the first day of the 2nd month after the anniversary month

Example: an LLC formed in June files in the 60 days before June 1.

Sources (state law): 805 ILCS 180/50-10, 805 ILCS 180/50-1, 805 ILCS 180/50-15

Registered agent in Illinois

Required (805 ILCS 180/1-35). Changing your registered agent or office is a $25 state filing.

Source: 805 ILCS 180/1-35

Illinois LLC fees and deadlines Cited (state law)

Filing office: Secretary of State, Business Services
Formation fee details: $150 articles of organization ($400 for a series LLC). Not confirmed: SOS online/expedite fees not confirmed.
Year-1 state total: $150
Ongoing filing: Annual Report
Ongoing fee: $75 (+$50 per series)
Deadline: Delivered within the 60 days before the first day of the anniversary month.
Late penalty: $100 penalty (+$100 per additional year) if not corrected before the first day of the 2nd month after the anniversary month
Newspaper publication: None found
Registered agent: Yes (805 ILCS 180/1-35)
Official sources: ilga.gov: 080501800K50-10, ilga.gov: 080501800K50-1, ilga.gov: 080501800K50-15

Checked November 12, 2026. Fees can change; confirm on the state's site before filing.

Questions

When is the Illinois LLC annual report due?

Within the 60 days before the first day of your LLC's anniversary month. The fee is $75.

How much does it cost to form an LLC in Illinois?

Illinois law sets a $150 filing fee for Articles of Organization ($400 for a series LLC).

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