Union dues are job-related expenses. They are an itemized deduction which you will only be able to enter if you are using Deluxe or higher.
JOB RELATED EXPENSES
Only the amount of job-related expenses that are OVER 2% of your adjusted gross income get added to your list of itemized deductions, which still must exceed your standard deduction in order to make a difference on your return. This is kind of a hard deduction to get. If you need to enter these, go to Federal>Deductions and Credits>Employment Expenses>Job-Related Expenses.
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