The deadline for filing income tax returns for the financial year 2022-23 was July 31, 2023, with a temporary extension for certain forms until October 31, 2023. Taxpayers who miss this deadline may face penalties and interest charges but can file belated returns until March 31, 2024. Future filing deadlines remain July 31 for individuals and October 31 for businesses requiring audits for the financial year 2023-24.