My grandson lived in CO & MD for 2024, he was a part year resident in both states, why is his total income showing on the MD state return?

[dustincredito624]

how to determine residency status when lived in 2 states and worked in both states

[KeshaH]

You will need to make an adjustment on the MD tax return to subtract the income that was earned while he was not a resident of Maryland. The screenshot below shows the screen you'll need to make the adjustment on.