File online- Save paper, save time, start your business online. Through Ohio Business Central, you can file a number of forms online, obtain and request publications, search existing businesses and sign up for our.Ohio Business Filings Portal. Start or maintain your Ohio business online. Each corporation that is subject to the franchise tax must file an Ohio corporation franchise tax report. In this guide, you'll find information on naming your corporation, getting a Statutory Agent, the fees you'll need to pay, business taxes and much more. Want to start a C-Corp in Ohio? Read this guide to find the step-by-step process of how to form an Ohio Corporation quickly and efficiently, for free.