Tax Return Filing Due Dates for Kansas and Missouri
As of March 20, 2020, the State of Kansas and the State of Missouri are still requiring that individual income tax returns (1040s) and business tax returns with a filing due date of 4/15 be filed on or before April 15, 2020.
Therefore, you still need to have your tax returns prepared and ready to file on 4/15. If you choose, you may sit on the IRS 1040 and not file it or make your payment to the United States Treasury until July 15, 2020.