Tex. Gov't Code § 437.218
(b) To obtain the exemption, a service member must file in the county tax assessor-collector's office an affidavit, sworn to before a notary public or other person authorized to administer oaths in this state, in the following form:
"I, __________, do hereby solemnly swear or affirm that I am a service member in good standing of the Texas military forces of the State of Texas.
Subscribed to and sworn to before me this ______ day of __________, ______
SEAL
________________________
________________________
Notary Public in and for
__________ County, Texas"
Added by Acts 2013, 83rd Leg., R.S., Ch. 1217 (S.B. 1536), Sec. 1.01, eff. September 1, 2013.