Tex. R. Civ. P. 216

As amended through February 20, 2024
Rule 216 - Request and Fee for Jury Trial
a.Request. No jury trial shall be had in any civil suit, unless a written request for a jury trial is filed with the clerk of the court a reasonable time before the date set for trial of the cause on the non-jury docket, but not less than thirty days in advance.
b.Jury Fee. Unless otherwise provided by law, a fee of ten dollars if in the district court and five dollars if in the county court must be deposited with the clerk of the court within the time for making a written request for a jury trial. The clerk shall promptly enter a notation of the payment of such fee upon the court's docket sheet.

Tex. R. Civ. P. 216