Tex. Tax Code § 31.075

(a) At the request of a property owner or a property owner's agent, the collector for a taxing unit shall issue a receipt showing the taxable value and the amount of tax imposed by the unit on the property in one or more tax years for which the information is requested, the tax rate for each of those tax years, and the amount of tax paid in each of those years. The receipt must describe the property in the manner prescribed by the comptroller. If the amount of the tax for the current year has not been calculated when the request is made, the collector shall on request issue to the property owner or agent a statement indicating that taxes for the current year have not been calculated.

(b) In any judicial proceeding, including a suit to collect delinquent taxes under Chapter 33 of this code, a tax receipt issued under this section that states that a tax has been paid constitutes prima facie evidence that the tax has been paid as stated by the receipt.