Source: U.S. Census Bureau
Release: Weekly Business Formation Statistics
Business Applications (BA): The core business applications series that corresponds to a subset of all EIN applications. BA includes all applications for an EIN, except for applications for tax liens, estates, trusts, or certain financial filings, applications with no state-county geocodes, applications from certain agricultural, public entities, and applications in certain industries (e.g. private households, civic and social organizations).
See "About the Data" for more details.
U.S. Census Bureau, Business Applications for Illinois [BUSAPPWNSAILYY], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/BUSAPPWNSAILYY, January 26, 2021.