Why is state tax so high just moved into South Carolina in December

[SweetieJean]

Be sure you are filing part year resident returns for both of the states where you lived in 2020.  But did you work in SC or have other SC-based income prior to your move?

[DavidD66]

You may not have allocated the correct amount of your income to South Carolina.  In your South Carolina return, at the very beginning, there is a page where you select whether to file as:

• Resident OR part-year resident filing as a resident
• Nonresident OR part-year resident filing as a nonresident

Select "Nonresident OR part-year..."

Further in the program, there is a page where you allocate to South Carolina, the income earned while you were living or working there.  See screenshot below.