It depends. Generally, union dues and all other nonreimbursed employee business expenses are not deductible on your 2018 return. Due to Tax Reform, Miscellaneous Itemized Deductions on Schedule A, have been suspended for the tax years 2018 through 2025.
However, there is an exception for a Qualified Performing Artist. Please see the following TurboTax FAQ for more information. https://ttlc.intuit.com/replies/3302334
