No application fee.

Application fee varies by jurisdiction.

Community supervision fee is not less than $25 or more than $60 per month.
Additional fees may be required.
Texas Government Code Chapter 103 - Additional Court Fees and Costs

Parole supervision fee of $10 per month and an administrative fee of $8 per month.
Additional fees may apply for certain offenses and required programing or treatment based on conditions of supervision.
Texas Government Code Chapter 508 – Parole and Mandatory Supervision