Save “Register an Illinois assumed name” to MyCheck
From USTAXX
What Is a DBA? How to File One in Illinois6 steps · Checklist
Register an Illinois assumed name
Where it goes, and what it does not buy you.
Confirm you actually need one rather than a second entity.
Check where your entity type files; the wrong office is the usual mistake.
Search the register for the name you intend to trade under.
File and keep the stamped copy; banks ask for it.
Apply separately for any EIN, licence or permit you need.
Accept that it creates no entity and no liability protection.
Free, and yours to edit — tick items off on the web or in the MyCheck app.