Us or call 512-463-5555. Yes. Certificates of formation can be filed online through SOSDirect 24 hours a day, 7 days a week.In this video we're going to fill out a certificate of formation this is for your LLC to file with the Secretary of State's office. Discover how to launch your business in San Antonio with out all-inclusive guide. Find out how to navigate registration, taxes, licenses, and more. Prepare a certificate of formation and file it with the Texas Secretary of State to register your Texas LLC properly. At Begum Peláez-Prada PLLC, we have significant experience helping people like you successfully set up and maintain their LLCs. Singleofficer or singledirector corporations are permitted in Texas, and the same individual can hold more than one position. This video provides a step-by-step guide on completing the Certificate of Formation (Form 205) for a Texas LLC. You can file your Certificate of Formation online through the Texas Secretary of State's website, or you can mail in the completed form.