Overview

• ARBA formalized the regime through Resolution 25/2025, enrolling the province in the SIRCUPA system with a phased start on October 1 for PSPs already listed by the Comisión Arbitral and November 1 for other qualifying providers.
• Payment service providers such as Mercado Pago, Ualá and Naranja X must report account credits, withhold the assigned amounts, file sworn statements and remit the funds in pesos even when the credit was received in foreign currency.
• Retention rates are set by a provincial padrón and range roughly from 0.01% to 5%, covering credits in pesos and most foreign currencies except U.S. dollars, with explicit exclusions including salaries, pensions, same-holder transfers, export receipts and certain financial returns.
• ARBA publicly rejected claims of a new levy and said the rule aligns wallet treatment with bank accounts as Buenos Aires joins a regime already operating in about 20 jurisdictions nationwide.
• Fintechs and SME groups warn about operational burdens and potential accumulation of hard-to-recover tax credits, while ARBA points to expedited online refunds as a partial mitigation.