Each corporation that is subject to the franchise tax must file an Ohio corporation franchise tax report. Corporations file Schedule M-3 (Form 1120) to answer questions about their financial statements and reconcile financial statement net income (loss)1. First, register with the Ohio Secretary of State. Registration information as well as forms are available online(opens in a new window) or at (877) SOS-FILE. 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. Upon determining the type of business entity you would like to form, our office can assist you in the filing process. Form BR25 is required to be completed based on the common parent federal income tax return of the affiliated group as filed with the.