Texas Estates Code - EST § 1157.107. Payment of Court Costs Relating to Claim

(1) if the claim is allowed and approved, the guardianship estate shall pay the costs;

(2) if the claim is allowed but disapproved, the claimant shall pay the costs;

(3) if the claim is rejected but established by suit, the guardianship estate shall pay the costs;

(4) if the claim is rejected but not established by suit, the claimant shall pay the costs; or

(5) in a suit to establish the claim after the claim is rejected in part, if the claimant fails to recover judgment for a greater amount than was allowed or approved for the claim, the claimant shall pay all costs.