No, you are not required to file a Mississippi state return. According to the Mississippi Department of revenue, a non-resident taxpayer with only Mississippi gambling winnings and/or losses should not file a Mississippi tax return. The document provided by the casino is considered the income tax return for this type of Mississippi income and therefore is proof that the tax was paid to Mississippi.?
Please view the FAQ titled "How do I report Gambling Winnings" by clicking the Mississippi link below.
