Thanks for the reply, here are my responses.
You are filing a nonresident return for Missouri and a resident return for Kansas, right? Correct
Did you enter the Missouri return first? Correct
When you enter the nonresident state first, then when the tax for that state is calculated, it is carried back to the resident state as a credit (in most cases - it does in this case). The Missouri tax bill is zero because the amount of income was less than the standard deduction.
Did the Missouri tax appear as a credit on line 13 ("Credit for taxes paid to other states") on your K-40? Then this is correct. The credit is zero since there was no tax bill for Missouri due to the generous standard deduction. So there is a refund of taxes in MO but have to pay taxes in KS since there was no offset or credit.
