Home LLC costs by state Illinois LLC cost guide · Illinois
Illinois LLC Cost (2026): State Fees on File and the 3 Best LLC Services
Short answer, Illinois 2026, forming an LLC: Illinois Registered Agent.co ($199), IL Registered Agent.org ($199) and Mainstay Filing ($199). State side: $150 to file, $75 every year for the Limited Liability Company Annual Report. Three-year rank: 33rd of 50.
Desk note by LLC Data Desk · Updated November 12, 2026
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Illinois fee sheet
33rd rank, 50 states, three-year state cost
1 50
1 = smallest bill, level with other states. All fifty on one sheet Fee to file $150 Pulled October 2026 from ilsos.gov Limited Liability Company Annual Report $75 / yr Date set by the state: before the first day of the entity's anniversary month. Pulled October 2026 from ilsos.gov Late-filing penalty $100 Pulled October 2026 from ilsos.gov
Total owed to the state, 3 yrs $300 Formation, then years 2 and 3 of reports Services ranked for Illinois
1. Illinois Registered Agent.co: best for low formation fees
Our #1 $199 plus fees; $99 yearly after
We rank Illinois Registered Agent.co first. Reason: formation $199 above the state fee; agent $99 from year two.
Mainstay Filing costs more across three years, and that criterion counts for 31%.
Filing the Limited Liability Company Annual Report stays with you, every year.
What the fee covers Illinois formation filed First year of agent service Pros $199 above the state fee Then $99 a year Year-one agent included Cons Owner keeps the Limited Liability Company Annual Report to file Charges $99 for the EIN application
2. IL Registered Agent.org: best for Illinois-only LLCs
One state $199 plus fees; $99 yearly after
Then IL Registered Agent.org, because formation $199 above the state fee; agent $99 from year two.
Filing the Limited Liability Company Annual Report stays with you, every year.
Same prices as Illinois Registered Agent.co.
What the fee covers Illinois formation filed First year of agent service Pros Year-one agent included $199 above the state fee Then $99 a year Cons Owner keeps the Limited Liability Company Annual Report to file Charges $99 for the EIN application
3. Mainstay Filing: best for a filing calendar someone else keeps
All 50 states $199/yr plus the $150 state fee
We rank Mainstay Filing third. Reason: $199 a year buys the Illinois formation, registered agent service and the annual report; renewal is $199.
Illinois Registered Agent.co beats it by $200 on three-year service fees.
Mainstay submits the Limited Liability Company Annual Report, and Illinois's $75 comes through at cost.
What the fee covers Formation filed on your behalf Registered agent for the full year Annual report prepared and submitted EIN application included Official fee, passed through Pros Renewal holds at $199 $199 a year covers formation and agent and report EIN application included Cons Illinois Registered Agent.co renews for $100 less
Fees in a row All fees here were pulled November 12, 2026 from the companies' sites. The state's $150 is not counted above.
Illinois LLC cost calculator Pick years and a service. State side follows the official schedule: $150 to form, then the Limited Liability Company Annual Report from year two.
Illinois next to nearby ranks Illinois: what the state charges to form an LLC Fee: $150. File the Articles of Organization (Form LLC-5.5) with the Illinois Secretary of State. Authority: 805 ILCS 180/5-5. Each service below bills it at cost.
Illinois recurring report Report on file: Limited Liability Company Annual Report, once a year, $75, before the first day of the entity's anniversary month. Late: $100.
Reasoning Service bill over three years settled first place in Illinois. It carries 31% of the score; the other criteria are scope of the price, renewal step, state rule match, fee transparency.
Illinois Registered Agent.co: $397 in service fees over three years, $200 below Mainstay Filing.
Illinois: questions State fee to form an LLC in Illinois? Illinois charges $150 to file. The picks bill $199 above the state fee.
What fee comes with the Illinois Limited Liability Company Annual Report? Due before the first day of the entity's anniversary month; fee $75, every year. Late: $100.
Illinois rank on LLC fees? 33rd of 50 on three-year state fees, level with other states: $300. Rank 1 is the smallest total.
Is a registered agent required in Illinois? Every LLC must name a registered agent with an in-state street address.
Which LLC services are ranked here? Illinois Registered Agent.co ($199), IL Registered Agent.org ($199) and Mainstay Filing ($199), ranked, with the desk pick up front.
Which LLC service do you pick? Illinois Registered Agent.co, then IL Registered Agent.org and Mainstay Filing. The split is service bill over three years.
Basis for this page Desk file (Illinois Secretary of State, Department of Business Services): ilsos.gov , pulled August 2026. Desk file (Illinois Secretary of State, Department of Business Services): ilsos.gov , pulled August 2026. Desk file (805 ILCS 180/5-5): ilga.gov , pulled August 2026. Desk file (Illinois formation fee: Filing fee, official source): ilga.gov , pulled October 2026. Desk file (Illinois formation fee: Filing fee, official source): ilsos.gov , pulled October 2026. Desk file (Illinois registered agent statute): ilga.gov , pulled October 2026. Desk file (SDCL 47-34A-203): sdlegislature.gov , pulled August 2026. Desk file (South Dakota formation fee: Filing fee, official source): sdsos.gov , pulled October 2026. Desk file (South Dakota formation fee: Filing fee, official source): sdlegislature.gov , pulled October 2026. Desk file (South Dakota Secretary of State, Business Services /): sdsos.gov , pulled August 2026. Desk file (South Dakota Secretary of State, Business Services /): sosenterprise.sd.gov , pulled August 2026. Desk file (South Dakota yearly filing: Annual report: fee and): sdlegislature.gov , pulled October 2026. Desk file (Conn): cga.ct.gov , pulled August 2026. Desk file (Connecticut formation fee: Filing fee, official source): business.ct.gov , pulled October 2026. Desk file (Connecticut formation fee: Filing fee, official source): business.ct.gov , pulled October 2026. Desk file (Connecticut Secretary of the State, Business Services Division): business.ct.gov , pulled August 2026. Desk file (Connecticut Secretary of the State, Business Services Division): business.ct.gov , pulled August 2026. Desk file (Connecticut yearly filing: Annual report: fee, official source): business.ct.gov , pulled October 2026. Desk file (N.H): gc.nh.gov , pulled August 2026. Desk file (New Hampshire formation fee: Filing fee, official source): sos.nh.gov , pulled October 2026. Desk file (New Hampshire formation fee: Filing fee, official source): gc.nh.gov , pulled October 2026. Desk file (New Hampshire Secretary of State, Corporations Division): sos.nh.gov , pulled August 2026. Desk file (ORS 63.044 and ORS 63.047): oregonlegislature.gov , pulled August 2026. Desk file (Oregon formation fee: Filing fee, official source): sos.oregon.gov , pulled October 2026. Desk file (Oregon Secretary of State, Corporation Division): sos.oregon.gov , pulled August 2026. Desk file (Oregon Secretary of State, Corporation Division): sos.oregon.gov , pulled August 2026. Illinois Registered Agent.co pricing page; company site pulled November 12, 2026 IL Registered Agent.org pricing page; company site pulled November 12, 2026 Mainstay Filing Illinois service page; company site pulled November 12, 2026