Formation of Business Entities and Nonprofit Corporations Under the Texas Business Organizations Code: Online filing available through SOSDirect. After you have formed your entity, usually an LLC or corporation, you'll need to file Form 2553 with the IRS to request S Corp status.Establishing an S Corp in Texas involves forming a formal business entity, meeting IRS requirements, and filing Form 2553 with the IRS. In this comprehensive guide, I'll walk you through the stepbystep process of forming an S Corporation in Texas in 2024. Under Texas law, for-profit Texas corporations need to list the name and address of at least one director on their Certificate of Formation. There are several important steps to starting a corporation in Texas. The first step is understanding the two types of for-profit corporations.