P.R. Laws tit. 13, § 32031
(a) Power to rescind a transaction. — Any Internal Revenue Agent who, in the performance of his/her official duties, acquires taxable items in any commercial establishment or business, and makes the corresponding payment, may rescind the transaction once the corresponding payment has been made, whether or not he/she receives a sales receipt. In this case, the merchant or vendor shall be required to return the amount collected in the transaction, and the agent must return the taxable item, provided that the sales transaction and the rescission and return of the purchased item occur within the same calendar month.
(b) This section shall not apply in the case of taxable merchandise that, due to its nature, cannot be returned to the merchant or merchant to be sold later.
(c) Imposition of administrative fine. — Any merchant or merchant who refuses to return to the Internal Revenue Agent the amount collected in the transaction of taxable merchandise that said agent opts to rescind, including the sales tax collected in said transaction, if any, shall be subject to the administrative fine provided in §§ 33001 et seq. of this title.
History —Jan. 31, 2011, No. 1, § 4020.11, retroactive to Jan. 1, 2011.