Harris County Online Application. Apply using the Form 11.13 with a scanned copy of your Texas Driver's License. Mobile App. You can also file your exemption using their mobile app in Android or in iOS with a photo of your Texas Driver's License.
There are multiple ways to file a Homestead Exemption application Form 50-114, however the online option is the fastest, and details are provided in the transcript below.
Generally, the filing deadline for a residence homestead exemption is no later than April 30. What if I miss the filing deadline? A late application for a residence homestead exemption, including for a person age 65 or older or disabled, may be filed up to two years after the filing deadline has passed.
I forgot to apply for my exemption, can I receive it retroactively? You may file a late homestead exemption application if you file it no later than two year after the date the taxes become delinquent.