When exactly do I need to file my Illinois LLC annual report?

Your Illinois LLC annual report is due before the first day of your LLC's anniversary month, the month in which the Secretary of State accepted your Articles of Organization. An LLC formed in March 2023 should have its next report on file before March 1, 2024. The report is Form LLC-50.1 and the fee is $75, with a series LLC paying $75 plus $50 for each series. Illinois does not penalize you the moment that day passes: under Illinois law a $100 penalty attaches once you have failed to file before the first day of the second month after the anniversary month, and another $100 is added for each year or fraction of a year from the second year of delinquency on. An LLC left delinquent can be administratively dissolved, and reinstatement then costs $200. File through the Business Services section of ilsos.gov and set a calendar reminder for the month before your anniversary month so the report is in on time.

What information do I need to gather before filing my Illinois annual report?

Before filing, gather your LLC's current registered agent name and Illinois street address, principal business address, and complete member or manager information. You will also need your Illinois file number and formation date. The form is Form LLC-50.1, the official Illinois annual report, available from the Business Services section of ilsos.gov; note that the old cyberdriveillinois.com address has been retired. Have your federal Employer Identification Number handy if your LLC has one, and review your operating agreement to confirm current member percentages and titles. The report is due before the first day of your LLC's anniversary month under Illinois law and the fee is $75, so organizing these details ahead of time prevents a rushed filing that gets rejected close to the deadline.

What happens if I miss my anniversary month deadline for the annual report?

Illinois sets the consequence by statute rather than case by case. Under Illinois law a $100 penalty attaches once the annual report has not been filed before the first day of the second month after your anniversary month, and another $100 is added for each year or fraction of a year beginning with the second year of delinquency. So a report two years late carries $200 in penalties on top of $150 in unpaid report fees. Delinquency also takes your LLC out of good standing, which can hold up bank, licensing, and contract paperwork that asks for a certificate of good standing, and an LLC that stays delinquent can be administratively dissolved by the Secretary of State. Illinois law gives 120 days from the date of the notice of delinquency, after which the Secretary of State must dissolve the company. Reinstating an administratively dissolved Illinois LLC costs $200 under Illinois law, plus the back report fees and penalties, so filing the overdue Form LLC-50.1 immediately through ilsos.gov is far cheaper than waiting.

Do I need to maintain a registered agent in Illinois for my LLC?

Yes. Every Illinois LLC must maintain a registered agent with a physical street address in Illinois who can receive legal documents and official correspondence during business hours. You can serve as your own registered agent if you have an Illinois street address, since PO boxes do not qualify, or you can hire a commercial registered agent service for an annual fee. This matters because the Illinois Secretary of State and opposing parties use the registered agent's address to deliver lawsuit papers, tax notices, and compliance mail. Missing service of process can lead to a default judgment against your LLC without your knowing a case was filed. If your agent resigns, moves, or you relocate out of state, file a statement of change with the Secretary of State promptly so the record stays accurate. Start by confirming the registered agent on file through the business entity search in the Business Services section of ilsos.gov, and update it in the same place if the details are out of date.

Compliance · IL

Illinois LLC Annual Compliance Requirements (2026)

Everything your Illinois LLC must do to stay in good standing, annual report deadlines, registered agent rules, and state-specific obligations.

First-Year Total$225

Annual Ongoing$75/yr

vs National Avg- $7.13

By Edmond Hui · Last updated: August 22, 2026

Illinois compliance is predictable, though the state is not among the cheapest in the country. Articles of Organization cost $150 and the annual report is $75, which puts first-year cost at $225. That ranks Illinois 35th cheapest of the 50 states and lands it roughly $7 below the national average of about $232. The report deadline is tied to your own formation date rather than one statewide date: under Illinois law it is due before the first day of your LLC's anniversary month, which spreads filings across the calendar instead of bunching every business into the same week. Two Illinois specifics belong in your budget. Organizing with the ability to establish series raises the formation fee to $400 and adds $50 per series to every annual report. And although Illinois has no LLC franchise tax, an LLC taxed as a partnership pays Personal Property Replacement Tax at 1.5% of its net Illinois income to the Illinois Department of Revenue, an entity-level tax that sits on top of the members' own Illinois income tax. Beyond those, Illinois imposes no newspaper publication requirement for LLCs, so the recurring load is the $75 report, a registered agent with an Illinois street address, and your state tax filings.

Stat card for Illinois LLC compliance costs: $225 in unavoidable first-year charges and $75 a year after that, −$7.13 against the $232.13 national first-year average. Its annual report costs $75. — First-year total bundles the state filing fee with any report or entity tax due in year one; the recurring figure is what Illinois costs every year after that. Source: Illinois's published filing requirements and fee schedule, verified July 2026; national average from MyStateLLC's 50-state compliance dataset.

Annual Report Requirements

Due: Anniversary month of LLC formation

Fee: $75

Frequency: annual

How: Online or mail

Full Illinois Annual Report Guide →

Registered Agent Requirements

Every Illinois LLC must keep a registered agent with a physical street address in Illinois to receive service of process and official state correspondence. Compare acting as your own agent against hiring a commercial service, and file a statement of change with the Secretary of State whenever the agent or the agent's address changes.

Before you compare paid services: in most states the LLC's owner, or another individual who qualifies, may serve as its registered agent themselves, generally subject to that state's rules on keeping a street address in the state and being available there during normal business hours. A paid service is one way to meet the requirement and not the only one. The Illinois registered agent requirements set out what Illinois itself asks.

Registered agent services for Illinois LLCs

Affiliate disclosure: Northwest Registered Agent, Bizee, ZenBusiness and LegalZoom pay us a commission if you sign up through our link, at no extra cost to you. We list only the registered agent services we have an affiliate relationship with, so this is not a survey of the whole market.

This list is not scored. The four are listed cheapest annual renewal first, and every claim below is about the services listed here rather than the whole market.

Northwest Registered Agent$125/yr renewal
Best for: Privacy-focused owners and anyone who just needs an agent, not a formation bundle
Bizee$149/yr renewal
Best for: A free first year on every plan, renewing at $149/yr, if you're comfortable with the BBB caveat
ZenBusiness$199/yr renewal
Best for: First-time founders forming a new LLC who want phone, email and chat support
LegalZoom$249/yr renewal
Best for: Complex structures that want attorney consultations, which come with LegalZoom's Pro and Premium formation plans rather than this renewal price

Note: Bizee holds a C rating from the BBB and is not accredited. BBB's profile carries a live alert describing a pattern of complaints about unexpected charges, difficulty canceling and filing delays, and Bizee has posted a response to it. We flag this so you can make an informed choice.

Annual renewal is each provider's own standard published rate. Check the current terms at each provider before you buy. The scored ranking, and the formula behind it, is in our full formation services review →

Illinois Registered Agent Requirements →

Late Filing Penalties

Penalty: $100 under Illinois law once the report is unfiled past the first day of the second month after your anniversary month, plus $100 for each further year

Illinois Late Fee Guide →

Illinois-Specific Compliance Considerations

Anniversary Month Annual Report Filing

Illinois has no single statewide filing date. Under Illinois law your annual report is due before the first day of your LLC's anniversary month, the month in which your Articles of Organization were accepted, so a March LLC files before March 1 every year. The statutory $100 penalty does not attach until you pass the first day of the second month after that anniversary month, which gives a March LLC until May 1, but the anniversary date is the deadline to plan around.

No Publication Requirement

Illinois doesn't require LLCs to publish formation notices in newspapers, unlike neighboring states such as New York. This saves LLC owners hundreds of dollars in publication costs and eliminates a common compliance hurdle that can delay business launch.

Modern LLC Act Framework

Illinois operates under an updated Limited Liability Company Act that provides clear guidelines for member rights, management structures, and dissolution procedures. The act offers strong liability protections while allowing maximum flexibility in operating agreements and business structure.

Late Penalties Compound Year by Year

The Illinois late penalty is fixed by statute, not left to the Secretary of State's discretion. Under the statute, a $100 penalty attaches once the report is not filed before the first day of the second month after your anniversary month, and another $100 is added for each year or fraction of a year beginning with the second year of delinquency. Three years behind means $300 in penalties on top of $225 in unpaid report fees. An LLC that stays delinquent can be administratively dissolved, and reinstatement costs $200 under Illinois law.

This guide is general information, not legal or tax advice, and reading it does not create an attorney-client relationship. It reports what each state publishes about filing deadlines, fees, and the consequences of missing them, with the sources this page cites. It cannot tell you what your own company owes: the date turns on when and where you formed, states change these rules between our reviews, and in several states an entity-level tax falls due in a year when no report does. Confirm your own dates with the filing office named on this page before you rely on one here, because the penalty for missing a deadline can be administrative dissolution of the company.

Frequently Asked Questions

: Your Illinois LLC annual report is due before the first day of your LLC's anniversary month, the month in which the Secretary of State accepted your Articles of Organization. An LLC formed in March 2023 should have its next report on file before March 1, 2024. The report is Form LLC-50.1 and the fee is $75, with a series LLC paying $75 plus $50 for each series. Illinois does not penalize you the moment that day passes: under Illinois law a $100 penalty attaches once you have failed to file before the first day of the second month after the anniversary month, and another $100 is added for each year or fraction of a year from the second year of delinquency on. An LLC left delinquent can be administratively dissolved, and reinstatement then costs $200. File through the Business Services section of ilsos.gov and set a calendar reminder for the month before your anniversary month so the report is in on time.
: Before filing, gather your LLC's current registered agent name and Illinois street address, principal business address, and complete member or manager information. You will also need your Illinois file number and formation date. The form is Form LLC-50.1, the official Illinois annual report, available from the Business Services section of ilsos.gov; note that the old cyberdriveillinois.com address has been retired. Have your federal Employer Identification Number handy if your LLC has one, and review your operating agreement to confirm current member percentages and titles. The report is due before the first day of your LLC's anniversary month under Illinois law and the fee is $75, so organizing these details ahead of time prevents a rushed filing that gets rejected close to the deadline.
: Illinois sets the consequence by statute rather than case by case. Under Illinois law a $100 penalty attaches once the annual report has not been filed before the first day of the second month after your anniversary month, and another $100 is added for each year or fraction of a year beginning with the second year of delinquency. So a report two years late carries $200 in penalties on top of $150 in unpaid report fees. Delinquency also takes your LLC out of good standing, which can hold up bank, licensing, and contract paperwork that asks for a certificate of good standing, and an LLC that stays delinquent can be administratively dissolved by the Secretary of State. Illinois law gives 120 days from the date of the notice of delinquency, after which the Secretary of State must dissolve the company. Reinstating an administratively dissolved Illinois LLC costs $200 under Illinois law, plus the back report fees and penalties, so filing the overdue Form LLC-50.1 immediately through ilsos.gov is far cheaper than waiting.
: Yes. Every Illinois LLC must maintain a registered agent with a physical street address in Illinois who can receive legal documents and official correspondence during business hours. You can serve as your own registered agent if you have an Illinois street address, since PO boxes do not qualify, or you can hire a commercial registered agent service for an annual fee. This matters because the Illinois Secretary of State and opposing parties use the registered agent's address to deliver lawsuit papers, tax notices, and compliance mail. Missing service of process can lead to a default judgment against your LLC without your knowing a case was filed. If your agent resigns, moves, or you relocate out of state, file a statement of change with the Secretary of State promptly so the record stays accurate. Start by confirming the registered agent on file through the business entity search in the Business Services section of ilsos.gov, and update it in the same place if the details are out of date.

Sources

Each entry below is a document recorded in our verified Illinois sources, and each entry says what the document is. Some statutory text is read from an accurate mirror rather than from the state's own host, and those say so. Where we hold the citation but no stable public link, the citation is printed on its own rather than pointed at a guessed address.

Illinois statute: 805 ILCS 180/50-15(b)(1) (late filing penalty)
Illinois statute: 805 ILCS 180/50-10 (filing and reinstatement fees)
Illinois statute: 805 ILCS 180/50-15(a) (annual report due date)
Illinois statute: 805 ILCS 180/35-30(b) (administrative dissolution)
ilsos.gov/departments/business-services/limited-liability-companies.htmlIllinois Secretary of State: business entity filings
ilga.gov/documents/legislation/ilcs/documents/080501800K50-1.htmIllinois statute: Annual Report
ilga.gov/Documents/legislation/ilcs/documents/080501800K50-15.htmIllinois statute: Annual Report

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Edmond Hui · Founder, MyStateLLC

Edmond Hui is a software engineer and serial entrepreneur based in New York who has founded multiple online businesses across e-commerce, media, and information publishing. Before transitioning into tech, he spent years as a commercial real estate professional closing deals totaling over 100,000 square feet, giving him firsthand experience with business formation and entity structuring. He built MyStateLLC to provide the free, state-specific LLC guidance he wished existed when forming his own companies.