The last date for Income Tax Return (ITR) filing for the assessment year 2025-26 (financial year 2024-25) is September 15, 2025. This deadline applies to taxpayers not subject to tax audit, including most salaried individuals, pensioners, NRIs, and entities using ITR forms 1 to 4. There has been no extension beyond this date despite demands and rumors on social media. If the ITR is filed after this date but before December 31, 2025, a late filing penalty applies, along with interest on any unpaid tax. After September 15, taxpayers also lose the ability to carry forward certain losses except house property loss.