L
LexiState
complianceUpdated 2026-03-31

Can I convert a corporation to an LLC in Illinois?

Yes, Illinois permits conversion of a corporation to an LLC under the Limited Liability Company Act (805 ILCS 180). File a conversion document with the Illinois Secretary of State, Department of Business Services. The corporation's assets, liabilities, and contracts transfer to the new LLC upon effective conversion. Contact the Secretary of State at (217) 524-8008 for specific conversion forms and filing fees.

How Conversion Works

File your conversion document online at https://apps.ilsos.gov/llcarticles/index.jsp or mail it to 501 S. Second St., Rm. 350, Springfield, IL 62756. The document must identify the converting corporation, the resulting LLC name, and principal place of business. Include authorization from your corporation's board of directors or shareholders as required by your bylaws. The conversion becomes effective upon filing or on a delayed date you specify.

Upon conversion, your corporation's legal existence terminates and the LLC assumes all assets, liabilities, and obligations without requiring separate transfers or creditor consent.

Post-Conversion Requirements

After conversion, your LLC must file an Annual Report before the first day of its anniversary month each year (805 ILCS 180/50-1, 805 ILCS 180/50-5). The filing fee is $75.00. The report must include your LLC's legal name, file number, jurisdiction of organization, principal place of business, names and addresses of managers and members with manager authority, and registered agent information.

Critical deadline: Missing the annual report deadline triggers a $100 penalty if filed within 60 days late. Failure to file within 120 days from the due date results in administrative dissolution.

Next Steps

  1. Consult an Illinois business attorney to review conversion requirements and tax implications
  2. Obtain board approval for the conversion
  3. Prepare and file the conversion document with the Secretary of State
  4. Update business licenses, contracts, and registrations to reflect the new LLC entity
  5. Set a calendar reminder for your first Annual Report deadline

Contact: Illinois Secretary of State, Department of Business Services, Limited Liability Division at (217) 524-8008 or https://www.ilsos.gov/

This is general information, not legal advice.