Extension of due date for filing Return of Income and Form 10B The due date for furnishing return of income for Assessment year 2021-22 (Financial year 2020-21) for all NGOs availing exemption under section 11 and 12 of the Income tax act was 31 st October, 2021. Earlier, this was extended by the Ministry of Finance to 30 th November, 2021. Now, the Ministry of Finance vide its circular No. 17/2021 dated 9 th September, 2021 has further extended the due date for furnishing return of income for the Assessment year 2021-22 to 15 th February, 2022 . Also, the due date for submission of Audit report under form 10B (which was earlier 30 th September, 2021) has now been extended to 15 th January, 2022.