Last date for ITR filing for FY 2024-25 (AY 2025-26): Under the Income Tax Act, 1961, the last date for ITR filing varies for different categories of taxpayers. This year, the Income Tax Department extended the ITR filing deadline for certain categories of taxpayers. Check to see if the ITR filing last date for FY 2024-25 (AY 2025-26) has been extended for whom.