The Chilean tax authority (Servicio de Impuestos Internos - SII) has issued Circular No. 34 of 30 July 2024, which provides instructions for the optional substitute tax for final taxes (impuesto sustitutivo de los impuestos finales - ISIF) established by Law No. 21,681. Law No. 21,681 was published in the Official Gazette on 1 July 2024, creating the Transitory Emergency Fund for Fires and other measures for reconstruction, as well as the optional ISIF regime. Eligible taxpayers for the ISIF…