Forming an LLC in Illinois

An LLC (Limited Liability Company) is the most common business structure for immigrants in Illinois.

Why Illinois

Third largest Midwest GDP, Chicago as financial and logistics hub Hispanic community ~18% of state, concentrated in Chicago Series LLC available — parent entity with separate sub-LLCs (popular for real estate investors) Accepts ITIN

Key facts

ItemInformation
Formation fee$150
Annual fee$75 annual report
DeadlineAnnual Report due first day of anniversary month ($75)
Accepts ITIN✅ Yes
Requires Registered Agent✅ Yes
Approval time1-3 weeks

Formation process

  1. Choose name unique ending in “LLC”
  2. Designate Registered Agent with physical address in Illinois
  3. File Articles of Organization ($150)
  4. Create Operating Agreement (internal)
  5. Get EIN from IRS (free)
  6. Open business bank account

Official platform: Illinois Secretary of State


Last verified: 2026-07-11.

State services and resources in Illinois

Where to register your LLC in Illinois

The Secretary of State office (or equivalent) of Illinois handles LLC registrations. Generally accepts filings:

  • Online (fastest, 1-3 days)
  • By mail (4-8 weeks)
  • In person (varies by state capital)

Post-formation requirements

  1. EIN from IRS (free, online, ~15 minutes)
  2. Business bank account — most require LLC docs + EIN
  3. State/local licenses depending on business type
  4. Annual Report yearly (keeps LLC active)
  5. Quarterly tax estimates if income > $1,000/quarter

LLC for immigrants with ITIN

  • Permitted: ITIN holders can be LLC members
  • Banking: business accounts with ITIN available (BlueVine, Mercury, Lili — verify policies)
  • Tax filing: Schedule C on your 1040 with ITIN; Form 1065 for multi-member LLC

Common errors

  • Forgetting annual report (can dissolve LLC)
  • Mixing personal and LLC finances (loses limited liability protection)
  • No Operating Agreement (even single-member)
  • Operating in another state without registering as foreign LLC

Illinois-specific resources

  • Illinois Secretary of State — LLC search + filings
  • Illinois Department of Revenue — state business taxes
  • SCORE (Service Corps of Retired Executives) — free small business mentoring
  • SBA (Small Business Administration) — free counseling via SCORE and SBDC, open to everyone. ⚠️ SBA loans (7(a), 504, microloans) are closed to non-citizen owners since March/April 2026 — including green-card holders. See who can still use each SBA program and the CDFI lenders that do accept an ITIN.

Last verified: 2026-07-11.

General procedural information for educational purposes. Not legal, tax, or immigration advice. Laws and fees change — verify with the issuing agency before taking action. For case-specific guidance, consult a licensed immigration attorney or other appropriate professional.