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June 6, 2019
Question

In Missouri, In addition to including a completed federal tax form to the state tax form, is it necessary to attach all copies of 1099 forms ?

  • June 6, 2019
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1 reply

Employee
June 6, 2019

Only if you're mailing in your MO income tax return and only if your W-2's/1099 forms show MO state income tax withheld, on the forms.

  • On your W-2, the amount would be in Box 17.
  • On your 1099 forms, look for the words, State tax withheld.