If you have union dues and have entered the information about your dues in the Federal Taxes section of TurboTax, federal information automatically flows into the State Taxes section, so that if the same union dues information was part of a state return, it would get populated.  However, if the state asks for additional information or has different rules regarding a state tax deduction for union dues, TurboTax will ask questions in the state interview section to obtain that additional information from you.

Please see the following TurboTax FAQ, "Can I deduct union dues, and where do I enter them in TurboTax?":

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