I want to file the return of an AOP. Which form I need to fill? Skorydov Tax Team Updated July 09, 2016 07:51 Follow You need to fill form no. ITR- 5. Have you filed your Income-tax return yet? Click here to start now. Related articles I want to file the return of an AOP. Which form I need to fill? Upload of two ( or multiple) Form 16s - Step by Step Guide What is IFSC Code? My Income-tax refund is less than expected? Comments 0 comments Please sign in to leave a comment.