On 7 August 2017, Puerto Rico's Treasury Department published a notice on the approval of Law 46-2017 and the issuance of Administrative Determination 17-07, which introduced a new biweekly payment requirement for sales and use tax (SUT). The new requirement includes that for taxpayers whose average monthly SUT payments in the previous year exceeded USD 2,000, SUT installment payments must be made on the 15th of each month and the last day of the month. Payment is made via the SURI electronic system (Sistema Unificado de Rentas Internas).The requirement does not apply in relation to Municipal SUT, which remains due...