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Argentina Triggers Semiannual Update to Monotributo and Income Tax After December Inflation Data

The automatic indexing mechanism set in 2024 now updates thresholds based on the second‑half inflation reading.

Overview

  • INDEC’s 2.8% December figure set second‑half 2025 inflation near 14.3%, activating the legally mandated reindexing of Monotributo and Impuesto a las Ganancias.
  • ARCA will publish the definitive tables this week; Monotributo’s new caps and monthly amounts apply from February, while Ganancias thresholds are effective from January 1.
  • Monotributo billing limits rise roughly 14.2–14.3%, with Category K moving to about AR$108.3 million and Category A’s monthly payment near AR$42,000; top services quota is about AR$1.38 million.
  • Employers must recalculate payroll using the updated Ganancias scales and refund or offset any excess January withholdings once systems are updated.
  • ARCA will open the recategorization window based on the last 12 months, with a February 5 deadline, and CABA’s adhesion to the Monotributo Unificado brings about 214,000 taxpayers into the unified system.