Illinois Secretary of State office — contact, fees, and licensing

The Illinois Secretary of State's Business Services Division handles entity formation, annual reports, and related filings from two offices — Springfield (the primary office) and Chicago. Both offices offer in-person service and accept the same documents by mail; expedited processing is only available for documents submitted in person at either location.

Office contact

Springfield address	501 S. Second Street, Room 350, Springfield, IL 62726
Chicago address	160 N. LaSalle Street, Chicago, IL 60601
Toll-free phone	(800) 252-8980
Corporations Division (direct)	(217) 782-6961
LLC Division (direct)	(217) 524-8008 ext. 7736
Office hours	Monday – Friday, 8:00 a.m. to 4:30 p.m.
Online entity search	apps.ilsos.gov/businessentitysearch
Business Services homepage	ilsos.gov — Business Services

Entity formation and filing fees

Fees below are from the Illinois Secretary of State's live publication pages, confirmed May 2026. Expedited service is available in person at Springfield or Chicago only — not by mail. Verify current amounts at ilsos.gov — Publications before filing.

Filing	Standard fee	Expedited (in-person only)
LLC — Articles of Organization	$150	+$100
LLC — Annual Report	$75	+$50
LLC — Name Reservation	$25	+$50
LLC — Certificate of Good Standing	$25	+$20
For-Profit Corporation — Articles of Incorporation	$150	+$100
For-Profit Corporation — Annual Report	$75	+$50
Not-for-Profit Corporation — Articles of Incorporation	$50	+$25
Not-for-Profit Corporation — Annual Report	$10	+$25
Not-for-Profit Certificate of Good Standing	$5	+$10

Illinois applies franchise taxes to some corporations in addition to annual report fees — the fee pages note that listed fees may not include applicable franchise taxes, penalties, or interest. Confirm with the Division whether franchise tax obligations apply to your entity type.

Key Illinois state licensing agencies

Agency	What it covers	Website
Illinois Department of Financial and Professional Regulation (IDFPR)	200+ professional and occupational licenses — doctors, nurses, real estate, cosmetology, contractors, accountancy, and others	idfpr.illinois.gov
Illinois Department of Revenue (IDOR)	State tax ID (Illinois Business Tax number), sales tax, withholding tax	mytax.illinois.gov
Illinois Department of Commerce and Economic Opportunity (DCEO)	Business Information Center — permits and regulatory guidance for new businesses; grants and incentives	dceo.illinois.gov

This guide is informational only and is not affiliated with the Illinois Secretary of State's office or any state agency listed above. Contact information and fees verified against official Illinois Secretary of State sources, May 2026.