Corp USA Illinois · Local formation
Illinois LLC, Series LLC & Corporation in Chicago
Start Illinois LLC ($299), Series LLC ($599 umbrella + $50 per series), or Corporation ($324) in Chicago. Limited Business License $250 / 2 years; regulated activities need the appropriate Regulated Business License. Annual reports cost $174 and are due before the first day of the anniversary month.
Corp USA is not a law firm and does not provide legal advice.
Corp USA is not a law firm and does not provide legal advice.
Corp USA is not a law firm and does not provide legal advice.
Corp USA is not a law firm and does not provide legal advice.
Business in Chicago
Commercial corridors
Chicago commercial areas and Cook County business hubs.
Local business sectors
Limited Business License $250 / 2 years; regulated activities need the appropriate Regulated Business License.
Entity strategy
Standard LLC for flexible ownership; Series LLC with separate records for segregated operations; corporation for stock issuance; licensed professionals must confirm IDFPR eligibility.
Licensing & tax review
MyTax Illinois Form REG-1, 4.95% individual tax, partnership/S-corp 1.5% PPRT and C-corp 9.5% combined tax require separate review. Confirm municipal licenses and your actual county boundary.
Trade Name / DBA — Cook
Cook County Clerk Assumed Business Name Unit
118 N. Clark St., Room 434, Chicago, IL 60602
LLC formation requires no newspaper publication. Statewide LLC/corporation assumed names use Form LLC-1.20 / BCA 4.15 with zero newspaper publication. Sole proprietors and general partnerships register with the County Clerk under 805 ILCS 405/1 and publish once each week for three consecutive weeks; confirm filing, publication and proof deadlines with the clerk.
Official Trade Name instructionsBusiness licensing
City of Chicago BACP, City Hall · 121 N. LaSalle St., Room 800, Chicago, IL 60602
Official local business informationConfirm city boundaries, zoning, home-business permits, licenses and taxes before operating.
Formation questions
LLC $150 state + $149 service = $299; Series LLC $400 + $199 = $599 umbrella; Corporation $175 + $149 = $324.
Official sourceNo for Illinois LLC formation or statewide LLC/corp assumed names (Form LLC-1.20 / BCA 4.15). County Clerk DBAs for sole proprietors/general partnerships require three-week publication under 805 ILCS 405/1.
Official sourceBefore the first day of your anniversary month. Form LLC-50.1 / BCA 14.05: $75 state + $99 service = $174.
Official source