File a DBA / Fictitious Business Name in Illinois.
A DBA (Doing Business As) . also called a Fictitious Business Name, Assumed Name, or Trade Name . lets an Illinois entity operate under a different name. This guide explains the filing process, where to file in Illinois, fees, renewal cycles, and the critical fact that a DBA is NOT a substitute for forming an LLC or Corporation.
File Illinois DBA →When to file a DBA in Illinois
"Acme Holdings LLC" wants to operate retail stores as "Acme Coffee".
Sole proprietorships using anything other than the owner's legal name must file a DBA in Illinois.
Multiple brands run by the same LLC each get their own DBA.
Banks require a filed DBA to accept payments made out to a name other than the legal entity.
Up a level, or across to the neighbors.
Secretary of State DBA by state
The national explainer above this page: what changes between jurisdictions, and why.
Open the hub → SectionSecretary of State directory
Every filing the state business office takes, state by state.
Open the section → StateIllinois business filings
Every filing a business makes in Illinois, gathered on one page.
Open Illinois → In IllinoisArticles of Amendment in Illinois
Articles of amendment, state by state
Read the guide → In IllinoisSecretary of State reinstatement in Illinois
Reinstatement, state by state
Read the guide → In IllinoisEntity conversion in Illinois
Entity conversion, state by state
Read the guide →