Every Illinois LLC must file an annual report with the Secretary of State and pay a $75 fee to stay in good standing. The report itself is short: you confirm or update your registered agent, principal office address, and management information. What catches people out is timing. Illinois gives you a 60-day filing window keyed to the month your LLC was formed, and missing it adds a penalty that climbs toward administrative dissolution.
When Your Report Is Due
Your annual report must reach the Secretary of State within the 60 days immediately before the first day of your LLC’s anniversary month.1Illinois General Assembly. 805 ILCS 180/50-1 Your anniversary month is the month you originally organized the LLC. Formed in September? Your window runs July 2 through August 31 every year. File before the window opens and the system may not have your form ready; file after it closes and you’re late.
Mailed reports count as filed on time if postmarked before the first day of your anniversary month.1Illinois General Assembly. 805 ILCS 180/50-1 Online filing removes the guesswork about whether a submission arrived in time.
What It Costs
The standard filing fee is $75 whether you file online or by mail. Miss the deadline and a $100 late penalty is added, for a total of $175.2ILSOS.gov. Illinois LLC Annual Report Form LLC-50.1 All outstanding penalties must be paid at the time of filing; you cannot submit the report now and settle up later.
There is no grace period or warning notice. The penalty applies the moment your filing window closes.
What to Have Ready Before You File
Gather these details before you open the portal. If something is wrong or missing, the Secretary of State can reject the report and send it back for corrections:
- Your LLC file number, assigned when the LLC was formed. You can look it up through the Secretary of State’s business entity search if you don’t have it.
- Your LLC’s exact legal name as it appears in state records — not a trade name or DBA.
- Your registered agent’s full name and the physical Illinois street address where they accept legal documents. P.O. boxes don’t qualify.
- Your principal office address, meaning the street address where the LLC conducts its main business. This can match the registered office or be a different location.
- The name and business address of every manager, or, if your LLC is member-managed, every member with management authority.1Illinois General Assembly. 805 ILCS 180/50-1
The registered office exists so the state and other parties know where to deliver legal notices and lawsuits; the principal office is where you actually run the business. Listing the wrong address for either can cause you to miss critical documents.
Filing Online
The fastest route is the Secretary of State’s online portal at apps.ilsos.gov.3ILSOS.gov. LLC Annual Report Filings Enter your LLC file number, and the system pulls up your information on record. You review each field, confirm what’s still accurate, and update anything that has changed.
Confirm or update your management structure, indicating whether the LLC is manager-managed or member-managed. This should match your operating agreement. If you’ve added or removed managers since the last filing, update their names and addresses. The report must be signed by a manager, or, if the LLC has no managers, by a member designated under your operating agreement.1Illinois General Assembly. 805 ILCS 180/50-1
Pay the $75 fee at submission. The portal accepts credit cards and electronic checks. Once payment processes, the system generates a confirmation receipt. Save or print it. That receipt is your proof of filing if any questions come up later.
Filing by Mail
If you prefer paper, download Form LLC-50.1 from the Secretary of State’s website and mail it to the Department of Business Services in Springfield.4ILSOS.gov. LLC Annual Report Filings – Instructions Include a check or money order for $75 payable to the Secretary of State. Mail takes longer to process, so if you’re close to the end of your window, filing online is safer. A timely postmark counts, but proving a postmark is harder than pointing to a digital confirmation.
If the Secretary of State finds errors in a mailed report, they’ll return it for corrections. You won’t face late penalties as long as you fix and refile the corrected version within 60 days of your original due date.1Illinois General Assembly. 805 ILCS 180/50-1
What Happens If You Don’t File
The consequences go beyond the $100 penalty. The Secretary of State can administratively dissolve your LLC if it fails to file the annual report and pay the required fee before the first day of the anniversary month. Administrative dissolution can also follow failing to maintain a registered agent, bouncing a payment to the Secretary of State, or misrepresenting information in any filing.5Illinois General Assembly. 805 ILCS 180/35-25
Dissolution is more than a status label. Once your LLC is dissolved, you lose the liability protection that separates personal assets from business debts. You may not be able to enforce contracts, obtain financing, or file lawsuits in the company’s name. Banks and lenders routinely check entity status before approving loans. If you operate in other states under that LLC, foreign qualification in those states can also be affected.
Getting a Dissolved LLC Back
An administratively dissolved LLC can apply for reinstatement with the Secretary of State. In most cases that means filing every overdue annual report, paying every accumulated fee and penalty, and submitting a reinstatement application. If your LLC went two years without filing, you owe the base fee and late penalty for each missed year on top of the reinstatement filing fee. Reinstatement, when granted, generally relates back to the date of dissolution, meaning the LLC is treated as though it was never dissolved.6Wolters Kluwer. Business Entity Administrative Dissolution and Reinstatement That retroactive effect can matter if contracts were signed or liabilities arose during the gap.
Confirming the Filing Went Through
After filing, check the Secretary of State’s online business entity database within a few business days to confirm your LLC shows “active” or “in good standing.” Online filings update faster than mailed ones. If the status hasn’t changed after a week, contact the Department of Business Services directly. A processing error or rejected payment could be holding things up, and you don’t want to discover that months later when a bank or client pulls your entity status.