Tex. Business & Commerce Code § 4.303

(a) Any knowledge, notice, or stop-payment order received by, legal process served upon, or setoff exercised by a payor bank comes too late to terminate, suspend, or modify the bank's right or duty to pay an item or to charge its customer's account for the item if the knowledge, notice, stop-payment order, or legal process is received or served and a reasonable time for the bank to act thereon expires or the setoff is exercised after the earliest of the following:

(1) the bank accepts or certifies the item;

(2) the bank pays the item in cash;

(3) the bank settles for the item without having a right to revoke the settlement under statute, clearing-house rule, or agreement;

(4) the bank becomes accountable for the amount of the item under Section 4.302 dealing with the payor bank's responsibility for late return of items; or

(5) with respect to checks, a cutoff hour not earlier than one hour after the opening of the next banking day after the banking day on which the bank received the check and not later than the close of that next banking day or, if no cutoff hour is fixed, the close of the next banking day after the banking day on which the bank received the check.

(b) Subject to Subsection (a), items may be accepted, paid, certified, or charged to the indicated account of a bank's customer in any order and before or after the bank's regular banking hours. A bank is under no obligation to determine the time of day an item is received and without liability may withhold the amount thereof pending a determination of the effect, consequence or priority of any knowledge, notice, stop-payment order, or legal process concerning the same, or interplead such amount and the claimants thereto.