File Missouri Form MO-1040A
Prepare Form MO-1040A now with TaxAct
Form MO-1040A is the short form (Form MO-1040 is the long form) used by Missouri residents to file their Missouri tax returns. To file Form MO-1040A the taxpayer must meet certain requirements. If these requirements are not met, the taxpayer should file their return using MO-1040.