(1) Previous years Income tax return: For Financial Year 2015-16 (AY 2016-17) and earlier years -
Any person who has not furnished a return within due date he may furnish the return for any previous year at any time before the expiry of one year from the end of the relevant assessment year or before the completion of the assessment, whichever is earlier [ section 139 (4)]. Thus previous two years income tax return i.e year ending 31.03.2015(AY 2015-16) and 31.03.2016 (AY 2016-17) can be filed.
(2) Previous years Income tax return: From Financial Year 2016-17 (AY 2017-18) onwards -
A person, who has not furnished a return for any previous year by the due date, may furnish the same before the end of the relevant assessment year or before the completion of the assessment, whichever is earlier. [ section 139(4)].