Argentina’s ARCA has extended the deadline for individual income tax filings for the 2025 tax year to 13 October 2026, while the 24 September deadline for the first 2026 advance tax payment remains unchanged.
Argentina’s tax authority, the Customs Revenue and Control Agency (ARCA) announced an extension for individual income tax filings on 21 September 2026 under General Resolution No. 5898/2026, which was published in the Official Gazette on 18 September 2026.
General Resolution No. 5898/2026 moves the deadline for individual income tax filings to 13 October 2026. This provides taxpayers additional time to complete their 2025 tax year returns.
The advance payment deadline for the 2026 fiscal year stays in place. Individuals must submit their first instalment by 24 September 2026.
ARCA decided after discussions with representatives from professional economic organisations. The agency aims to support tax compliance among citizens by allowing more time for filing requirements.
