ITR Filing Last Date 2025: The deadline has been extended until September 15, 2025, for the financial year 2024-25. Learn about the essential Income Tax Return deadlines for FY 2024-25 (AY 2025-26). Find out how to file your return, avoid penalties, & ensure timely compliance. For FY 2024-25 (AY 2025-26), the income tax filing last date for non-audit taxpayers is extended to16 September 2025. Many deductions and benefits are not available if you miss this due date. the Income-tax Act, 1961 ( 'the Act'), extends the due date of furnishing of Return of Income under sub-section (1) of section 139 of the Act for the Assessment Year 2025-26 in the case ofassessees referred in clause ( c) of Explanation 2 to sub-section ( 1) of section 139 of the Act, which is 3 pt July, 2025 to 15th September, 2025.