The articles of incorporation shall set forth any classes of shares and series of shares within a class, and the number of shares of each class and series, This guide will help you file formation documents, get tax identification numbers, and set up your company records.The filing fee is calculated depending on the number of shares the corporation is allowed to issue. "Authorized shares" refers to the number of shares the corporation is allowed to issue under its certificate or articles of incorporation. Every state demands that you supply three basic facts about your business: its corporate name, its registered agent and the number of authorized shares.