Yes, union dues are tax deductible in California, even though they no longer reduce your federal tax bill. California never adopted the federal elimination of miscellaneous itemized deductions, so the pre-2018 rules still apply on your state return. Two conditions have to line up: you have to itemize on your California return, and the deductible portion of your dues (combined with other qualifying employee expenses) has to exceed 2% of your adjusted gross income.
Why California and Federal Rules Diverge
California’s tax code starts with the federal Internal Revenue Code and then selectively opts out of provisions the state legislature disagrees with. When the Tax Cuts and Jobs Act wiped out the federal deduction for unreimbursed employee expenses in 2018, California refused to follow.1California Legislative Information. California Code, RTC 17076 The federal suspension was originally scheduled to sunset after 2025, but Congress removed the expiration in 2025, making it permanent for federal purposes.2Office of the Law Revision Counsel. 26 U.S. Code 67 – 2-Percent Floor on Miscellaneous Itemized Deductions Don’t expect it back on your federal return.
The disconnect trips people up. Because the deduction vanished from the federal Schedule A, many Californians assume it’s gone everywhere. It isn’t.
When Itemizing Makes Sense on Your California Return
You can only claim union dues if you itemize deductions on your California return instead of taking the standard deduction. For the 2025 tax year, California’s standard deduction is $5,706 for single filers and $11,412 for joint filers, head-of-household filers, and qualifying surviving spouses.3Franchise Tax Board. Deductions Those amounts are adjusted annually for inflation, so verify the current figures when you file.
Because California’s standard deduction is much lower than the federal amount, plenty of Californians who take the federal standard deduction still come out ahead by itemizing on their state return. Add up property tax, mortgage interest, charitable gifts, and your miscellaneous employee expenses before deciding.
The 2% AGI Floor
Union dues fall into the category of unreimbursed employee business expenses, which are miscellaneous itemized deductions. You can only deduct the portion of your total miscellaneous deductions that exceeds 2% of your adjusted gross income.2Office of the Law Revision Counsel. 26 U.S. Code 67 – 2-Percent Floor on Miscellaneous Itemized Deductions If your AGI is $80,000, the first $1,600 of these expenses produces no deduction. Only dollars above that threshold count.
This is where union dues alone often fall short. If your annual dues are $900 and your AGI is $80,000, your dues don’t even reach the $1,600 floor by themselves. Combining them with other qualifying expenses is usually what makes the deduction worth claiming.
Which Part of Your Dues Qualifies
Not every dollar you pay to your union counts. The deduction covers ordinary and necessary expenses required as a condition of your employment. Regular membership dues paid to maintain good standing are the core.
Several common union payments do not qualify:
- Strike fund contributions, which are treated as contingency contributions rather than deductible dues.
- The portion of your dues that funds lobbying, political campaigns, or political action committees.
- Premiums for life insurance, health insurance, or other personal coverage provided through the union, even when they’re bundled into a single payment.
Your union should send an annual statement breaking down how your payments were allocated. Keep it. That document shows the Franchise Tax Board which portion of your payments qualifies if your return is ever audited. Only the amount designated as ordinary and necessary dues should go into your deduction calculation. If your union hasn’t provided a breakdown, request one before you file.
Other Expenses That Help You Clear the Floor
Union dues don’t have to carry the 2% threshold alone. California lets you combine all unreimbursed employee business expenses and other miscellaneous deductions before applying the floor. The more qualifying costs you can identify, the more likely you’ll clear it.
Expenses reported on Schedule CA (540) that count toward this total include:4Franchise Tax Board. 2025 Instructions for Schedule CA (540)
- Unreimbursed employee expenses on Line 19: work-related travel, uniforms or protective clothing required by your employer, tools and equipment you buy for the job, and professional development courses your employer doesn’t reimburse.
- Tax preparation fees on Line 20: what you paid a preparer or software to file your returns, including e-filing fees.
- Other qualifying expenses on Line 21: certain legal and accounting fees related to producing taxable income, custodial fees for investment accounts, and casualty or theft losses of property used in your job.
A worker with $900 in union dues, $400 in unreimbursed work tools, and $350 in tax preparation fees has $1,650 in total miscellaneous deductions. Against an $80,000 AGI with a $1,600 floor, that produces a $50 deduction. Modest, but real. The numbers add up faster for workers with higher dues or more out-of-pocket job costs.
How to Claim the Deduction
The process starts on federal Schedule A, even if you’re taking the standard deduction on your federal return. California requires you to calculate federal itemized deductions as the starting point for state adjustments. Tax software handles this automatically. If you file by hand, complete a blank federal Schedule A to generate the numbers California needs.4Franchise Tax Board. 2025 Instructions for Schedule CA (540)
Next, prepare federal Form 2106 using California amounts to calculate your unreimbursed employee business expenses. Enter the result on Schedule CA (540), Part II, Line 19. Add tax preparation fees on Line 20 and other miscellaneous deductions on Line 21. The total after applying the 2% AGI floor flows into your California itemized deductions.
On Schedule CA, Column B is where you subtract amounts that are deductible for California but not for federal purposes. That is where the union dues deduction actually appears, lowering your California taxable income without touching your federal return. Attach the completed Schedule CA (540) to your Form 540 when you file.
Hang on to your union’s annual statement, receipts for other unreimbursed expenses, W-2 forms, and a copy of the Form 2106 you prepared. The Franchise Tax Board can audit returns for up to four years.
If You’re Self-Employed
Self-employed workers follow entirely different rules, and the result is better. Self-employed individuals deduct union or professional association dues as an ordinary business expense under federal law.5Office of the Law Revision Counsel. 26 U.S. Code 162 – Trade or Business Expenses You take it on Schedule C, where it reduces your net self-employment income directly. The 2% AGI floor doesn’t apply, and the federal elimination of miscellaneous itemized deductions doesn’t reach business expenses.
Self-employed Californians get the deduction on both federal and state returns. If you’re a freelancer, independent contractor, or sole proprietor who pays union dues or professional association fees as a condition of doing business in your field, report them as a business expense. No itemizing required, no threshold to clear.
Penalties for Overclaiming
Claiming deductions you’re not entitled to, or overstating the deductible portion of your dues, can trigger penalties from the Franchise Tax Board. The accuracy-related penalty is 20% of the underpayment that results from negligence or a substantial understatement of tax.6Franchise Tax Board. FTB Pub. 1024 – Penalty Reference Chart If the FTB finds you grossly overstated a deduction, that penalty jumps to 40% of the underpayment tied to the misstatement.
Protection is straightforward: use the allocation from your union’s annual statement, deduct only the qualifying portion, and keep your records for at least four years.