Texas Tax Code - TAX § 151.430. Determination of Overpaid Amounts

(a) This section applies to the tax on purchases paid by a person holding a permit under this chapter who has purchased taxable items for use in this state and has remitted tax on those items in error to this state or has paid tax on those items in error to a retailer holding a permit under this chapter.

(b) A person to whom this section applies may compute the amount of overpayment by use of a projection based on a sampling of transactions.  The sampling method used must comply with generally accepted sampling methods as approved by the comptroller.

(c) The person may obtain reimbursement for amounts determined to have been overpaid by taking a credit on one or more sales tax returns or by filing a claim for refund with the comptroller within the limitation period specified by Subchapter D, Chapter 111.  1

(d) The person must record the method by which the projection and computation were performed and must make available on request by the comptroller the records on which the projection and computation were based.

(e) The comptroller may adopt rules specifying additional procedures that must be followed in connection with claiming a credit under this section.