With no establishment and no CUIT, ARCA's invoicing regime does not reach you – exports into Argentina are documented on the importer's side. Revisit if you set up locally.

Argentina rarely registers foreign businesses without a local presence – but if you hold a CUIT and issue documents for Argentine-source operations, the CAE regime applies to that issuing like any local taxpayer. Confirm your position with ARCA or a local adviser rather than assuming the mandate stops at the border.

Small businesses and monotributistas have issued electronically since 2019 – ARCA's free Comprobantes en línea portal covers low volumes. Note the RG 5866/2026 housekeeping: new timing rules by transaction type, and buyer identification (DNI/CUIL) on consumer sales of ARS 10,000,000 or more.

Every invoice you issue needs a CAE before it goes out – that has been true since 2019. What is new is RG 5866/2026: if you are an insurer, bank, leasing provider, card scheme or payment-system participant, your previously exempt documents come into the regime between Sep 2026 and Mar 2027 – check your sector's date.