Per the Texas Comptroller, the completed application and required documentation are due no later than April 30 of the tax year for which you are applying. The general deadline for filing an exemption application is before May 1.The deadline for application is April 30th. Residence Homestead Exemptions Frequently Asked Questions (FAQ). 1. April 30, 2024 is the deadline to file for a homestead exemption or file an application for allocation of value. You can apply for a homestead exemption at any time. A general residential homestead exemption is available to taxpayers who own and reside at a property as of January 1 st of the year. Starting January 1st until April 30 of the tax year, every homeowner has the opportunity to submit an application for the Residential Homestead Exemption. A general residential homestead exemption is available to taxpayers who own and reside at a property as of January 1 st of the year. In Texas, the filing deadline is April 30th.