Yes. Certificates of formation can be filed online through SOSDirect 24 hours a day, 7 days a week. Please refer to IRS publication 557, "Tax-Exempt Status for Your Organization," and Comptroller publication 96-1045,.Additional planning and development provisions applying to more than one type of local government. How do we apply for an exemption? This is a simplified and streamlined form that you can fill out online. Texas Tax Exemption. We help your 501(c)(3) nonprofit achieve tax exemption in any state. An organization exempt from taxation under subsection (a) shall be subject to tax to the extent provided in parts II, III, and VI of this subchapter. In Box 3, nonprofits should check the box marked "other" and write "Nonprofit corporation exempt under IRS Code Section ___. An organization exempt from taxation under subsection (a) shall be subject to tax to the extent provided in parts II, III, and VI of this subchapter.