Partnerships and S Corporations must file by March 15, 2018 C Corporations must file by April 17, 2018 Individuals must file by April 17, 2018 IRA contributions for 2017 can be made until April 17, 2018 If you would like to have your income tax return prepared for you, contact our law office at 816-524-4949 or visit our website at Hoorfarlaw.com.