OK. Since you changed your domicile during the tax year, you should have filed as a part-year resident in each of the two states.
The income you earned prior to the move is taxable by MO; the income you earned after the move is taxable by IA.
You may have to file amended state returns to correct the situation.
This TT help question may be useful to you: https://ttlc.intuit.com/community/state-taxes/help/how-do-i-file-a-part-year-state-return/00/26057
**Answers are correct to the best of my ability but do not constitute tax or legal advice.
