It is taxable at what rate ? myITreturn Helpdesk Updated July 10, 2016 20:25 Follow Complete tax filing now. Last date: 31st March It is taxable at special rate of 30% . Tax rate on causal Income, Other source on income, Income tax In this page we explained that the casual Income is taxable at what rate as per the income tax department. Not filed yet? File your Income-tax return with myITreturn.com March 31st, 2018 is the last date to file your Income-tax return for FY 2015-16 (AY 2016-17) & FY 2016-17 (AY 2017-18). 3 reasons to file with myITreturn: Registered with the Income-tax Department Accurate and Simple Over 20 lakh users Complete filing now or if you have a simple tax return, you can download our mobile app and file your Income-tax return Download app Comments 0 comments Please sign in to leave a comment.