My son is a resident in Illinois but worked in MO for 2 months last year. When I do his taxes, IL wants to charge him taxes for that income. However, MO is also charging him and he is not getting it all back from MO. Out of $204 deducted in MO taxes, they are giving him 30 back. While IL is charging him $274.00. I feel like he is being double taxed on the same money.
