For W-2 employees, union dues are post-tax. They come out of your paycheck after federal income tax has already been calculated, and as of 2025 there is no federal deduction to recover any of that money. A few states still let you deduct dues on your state return, and if you’re self-employed the picture is different — you can write dues off as a business expense.
Federal Treatment for W-2 Employees
Union dues withheld from a W-2 paycheck are paid with after-tax dollars. Your employer calculates federal income tax on your gross wages, and the dues come out of what’s left. Nothing about that withholding process reduces your taxable income.
Before 2018, employees could recover some of that cost by claiming dues as a miscellaneous itemized deduction, but only the portion that — combined with other miscellaneous expenses — exceeded 2 percent of adjusted gross income. Most members never cleared that floor. The Tax Cuts and Jobs Act of 2017 then suspended the deduction entirely for tax years 2018 through 2025.1House Ways and Means Committee. Tax Cuts and Jobs Act Section-by-Section Summary
If you were waiting for that suspension to expire, it won’t. Section 110010 of the One, Big, Beautiful Bill Act permanently eliminated miscellaneous itemized deductions, including union dues, with no sunset date.2House Ways and Means Committee. The One, Big, Beautiful Bill Section-by-Section Summary Barring new legislation that creates a specific deduction or credit for dues, every dollar you pay in union membership is a federal after-tax cost.
Self-Employed Workers Get a Different Answer
The permanent elimination targets employee business expenses — costs of being a W-2 employee. If you’re an independent contractor or otherwise self-employed, your union or professional-association dues sit under a different section of the tax code: the general deduction for ordinary and necessary business expenses.3Office of the Law Revision Counsel. 26 USC 162 – Trade or Business Expenses That deduction was untouched by both the TCJA and the One, Big, Beautiful Bill Act.
You report the dues on Schedule C. They reduce your net self-employment income, which lowers both your income tax and your self-employment tax. The dues must be tied to your trade or business, which paying into a union that negotiates the contracts you work under clearly satisfies. One caveat: federal law disallows a deduction for the share of dues a union spends on lobbying and political activity, and unions notify members of that percentage each year. If the notice says 15 percent went to political expenditures, only the remaining 85 percent is deductible.3Office of the Law Revision Counsel. 26 USC 162 – Trade or Business Expenses
State Deductions Are Still Possible
Several states did not follow the federal government’s suspension of miscellaneous itemized deductions and continue to allow W-2 employees to deduct union dues on their state returns. The mechanism varies. Some states have a dedicated form for unreimbursed employee expenses; others follow the pre-2018 federal rules and apply a 2 percent AGI floor.
State conformity with federal tax law shifts often, so check your state revenue agency’s current-year instructions rather than assuming last year’s treatment still applies. States with no income tax leave nothing to deduct against.
The savings are smaller than a federal deduction would be, because state tax rates are lower. But on $600 to $1,200 in annual dues, a state deduction worth $30 to $100 is real money.
How to Find Your Dues Total
Look at Box 14 on your W-2 first. That field is a catch-all, and employers aren’t required to fill it in, but many do — the entry should be labeled “union dues” or similar.4Internal Revenue Service. 2026 General Instructions for Forms W-2 and W-3 If it’s blank, ask your union. Most locals issue year-end statements, and your treasurer or union website can supply the number.
Keep the documentation. Some states specifically ask for a final pay stub or union receipt confirming the amount. Self-employed workers should file receipts or bank statements the same way they would for any other Schedule C expense.
Don’t Claim a Federal Deduction That No Longer Exists
People still trip on this, usually by carrying over an old return, following outdated advice, or trusting software that hasn’t caught up. If you claim union dues as a federal miscellaneous itemized deduction, the IRS can assess an accuracy-related penalty of 20 percent of the underpaid tax, plus interest running from the original due date of the return.5Internal Revenue Service. Accuracy-Related Penalty A $200 deduction saves about $44 in tax at the 22 percent bracket. The penalty and interest on that $44 can easily wipe out the benefit and then some.
State returns are the opposite situation. If your state allows the deduction, take it — that’s what the line is for. Just work from your state’s current-year forms and confirm the rule hasn’t changed since the last filing season.