To correct the gambling income being reported, file an amended return. It can be e-filed. The state amendment can only be e-filed if you reside in Georgia, Michigan, New York, or Vermont. Otherwise, TurboTax will provide instructions to mail in the state amended return.
For more information, see: How do I amend my 2020 TurboTax Online return?
Do I need to amend my state if I amend my federal?
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