RE: Mississippi Income Taxes Withheld on Georgia Residents for Gaming The State of Mississippi recently made changes to gaming winnings Mississippi casino, 5% was automatically withheld from their winnings.
If you're a nonresident and the only income you earned in Mississippi was gambling winnings, you don't need to file a Mississippi state return.
Mississippi has 3 state income tax rates: 3%, 4% and 5%. These rates are the same for all filing statuses, as well as for businesses. More on.