Businesses that file with the Secretary of State (corporations, nonprofit corporations, Limited Liability Companies (LLC), Limited Partnerships (LP), Limited Liability Partnerships (LLP), etc.) are required to file assumed name filing with the Secretary of State if the business entity is conducting business under a name that is different than what is on record with the Secretary of State. Businesses that file with the Secretary of State do not file assumed names at the county.
Log into your INBiz account and click Online Services. Under the Secretary of State Section scroll to choose Assumed Name Filing. Follow the prompts to file your assumed name.