Apr 18; Federal Income Tax Filing Deadline. (Iowa State Income Tax filing due May 1).
This not a typo. Why is Tax Day April 18?
The regular tax return filing deadline is April 15. However, due to April 15 being on a Saturday and the Washington D.C. Emancipation Day holiday being observed on April 17 instead of April 16, 2017, Tax Day is on the following Tuesday.