This guide will help you file formation documents, get tax identification numbers, and set up your company records. A partnership with operations within Pennsylvania whose partners are all C corporations must provide to the department a complete copy of its federal Form 1065.Shareholders must meet at least once a year unless the articles of incorporation or bylaws of the corporation state otherwise. In Pennsylvania, all corporations are required to have a registered agent. Corporations typically hold several required formal meetings each year. The exact requirements vary depending on state laws and your corporation's bylaws. To form an S corporation, designate "S" status with IRS via Form 2553 within 2 months and 15 days of filing your articles of incorporation with Pennsylvania. Pennsylvania Business Owners: You must file an Annual Report starting in 2025. Know the requirements and deadlines. The Pennsylvania Online Business Tax Registration, available on myPATH at mypath.pa.