Labor unions are nonprofit organizations, not for-profit businesses. Federal tax law classifies them as tax-exempt under Section 501(c)(5) of the Internal Revenue Code, and federal labor law requires every dollar of union revenue to go toward serving the membership rather than enriching individuals. Unions can still run large budgets, earn investment income, and end a year with a surplus. What they cannot do is pay out profits to owners or shareholders, because no one holds that kind of stake in a union.
What 501(c)(5) Status Actually Means
Section 501(c)(5) of the Internal Revenue Code lists “labor, agricultural, or horticultural organizations” among the entities exempt from federal income tax.1Office of the Law Revision Counsel. 26 USC 501 – Exemption From Tax on Corporations, Certain Trusts, Etc. The exemption covers income tied to the union’s core purpose: collective bargaining, grievance handling, and workplace advocacy. Dues income and revenue from representational work sit outside federal income tax.
This is not the same tax status charities hold. A 501(c)(3) charitable organization has to serve a broad public benefit and faces heavy restrictions on partisan political activity. A 501(c)(5) union exists to serve the specific economic interests of its members and has far more room to engage in political and legislative work. Both are nonprofit, but they answer to different rules.
A union can also finish the year with more revenue than expenses without losing its nonprofit character. A surplus is not profit in the corporate sense, because there is no shareholder waiting on a dividend. Money left over stays in the organization for future contract negotiations, legal defense, strike support, or reserves.
When Unions Do Owe Federal Tax
Tax exemption is not a blanket pass. When a union regularly earns money from commercial activity unrelated to representing workers, that income is subject to the Unrelated Business Income Tax. The IRS defines unrelated business income as revenue from a trade or business that is regularly carried on and not substantially related to the organization’s exempt purpose.2Internal Revenue Service. Publication 598, Tax on Unrelated Business Income of Exempt Organizations
Selling branded merchandise to the general public, renting out property with significant services, or running advertising revenue in a publication can all trigger the tax. Interest earned on a strike-fund reserve generally does not. The union calculates the tax on each unrelated activity separately, so losses from one side venture cannot offset gains from another.3Office of the Law Revision Counsel. 26 USC 512 – Unrelated Business Taxable Income
If commercial activity ever grows large enough to dominate a union’s operations, the IRS can revoke the 501(c)(5) exemption entirely. In practice most unions keep such ventures small and separate, but the rule draws a hard line between a labor organization and a business that happens to have union members.
Where the Money Comes From, and Where It Goes
Member dues are the financial backbone of virtually every union. Most unions calculate dues as a percentage of the member’s gross pay, commonly around 1.5% to 2.5% of monthly earnings, though flat-rate structures exist in some trades. Employers usually collect the dues through automatic payroll deductions authorized under the collective bargaining agreement.
Beyond regular dues, unions bring in money from a handful of other sources:
- Initiation fees for new members, ranging from under $100 to several hundred dollars in skilled trades.
- Special assessments approved by the membership for specific purposes, such as building a strike fund or financing an organizing campaign.
- Investment income on conservatively invested reserves.
- Rental income from union-owned buildings, which can trigger unrelated business income tax if the property operation gets large enough.
On the spending side, the largest share of most union budgets goes to representational work. Contract negotiations for a large bargaining unit can eat up months of staff time, outside legal counsel, and comparative wage research. When a grievance goes to arbitration, the arbitrator’s daily fee typically runs $1,500 to $2,500, and unions usually split that cost with the employer.
Administrative costs take another significant share. Office space, staff salaries, and officer compensation all draw from the general fund. Salaries for officers of large national unions can reach into six figures, but every dollar is publicly reported under federal disclosure rules discussed below.
Strike funds are one of the more distinctive line items. These reserves pay benefits to workers during a work stoppage. Weekly strike benefits vary widely by union: some pay a few hundred dollars a week, while others, such as the United Auto Workers, have historically paid $500 per week. Legal representation, lobbying, and legislative advocacy round out the rest of the picture.
How You Can Verify No One Is Pocketing the Money
The nonprofit label only means something because federal law backs it up with reporting requirements, fiduciary duties, and criminal penalties. This is what separates a union from a business.
Annual Financial Reports Anyone Can Read
The Labor-Management Reporting and Disclosure Act of 1959 requires every union to file a detailed annual financial report with the Department of Labor.4U.S. Department of Labor. Labor-Management Reporting and Disclosure Act of 1959, As Amended Which form the union files depends on its size:
- Form LM-2 for unions with $250,000 or more in annual receipts. This is the most detailed report, covering 16 disbursement categories and requiring itemization of any individual payment of $5,000 or more.5U.S. Department of Labor. Reports Required Under the LMRDA and the CSRA
- Form LM-3 for unions with less than $250,000 in annual receipts.
- Form LM-4 for the smallest unions, those with less than $10,000 in annual receipts.
Reports are due within 90 days after the union’s fiscal year ends and are available to the public through the Department of Labor’s Office of Labor-Management Standards. The LM-2 in particular shows officer salaries, payments to employees, and spending broken out across representation, political activity, administration, and other categories. If you want to check whether a specific union is enriching its leadership at the expense of the membership, the LM-2 is the document to pull.
Members also have a statutory right under the LMRDA to examine the books, records, and accounts behind the reports. That right requires showing just cause, but it lets any member who suspects financial irregularities go beyond the published reports and into the source records.
Officers as Fiduciaries
Federal law treats union officers as fiduciaries. Under 29 U.S.C. ยง 501, every officer, agent, and steward has a duty to hold union money and property solely for the benefit of the organization and its members.6Office of the Law Revision Counsel. 29 USC 501 – Fiduciary Responsibility of Officers of Labor Organizations They must manage funds according to the union’s constitution and bylaws, avoid conflicts of interest, and account for any personal profit received in connection with union business.
A union cannot write itself out of these obligations. The statute explicitly voids any bylaw provision that tries to relieve officers of their fiduciary duties. Exculpatory clauses have no effect as a matter of federal law.
Criminal Penalties for Theft
When officers cross from mismanagement into outright theft, the consequences are criminal. Anyone who embezzles or steals union funds faces a fine of up to $10,000, a prison sentence of up to five years, or both.6Office of the Law Revision Counsel. 29 USC 501 – Fiduciary Responsibility of Officers of Labor Organizations The Department of Labor’s Office of Labor-Management Standards investigates these cases and federal prosecutors pursue them. Members who believe officers are violating their fiduciary duties can also bring a civil suit under the same statute after giving the union a chance to act.
A Note on Political Spending
Unions do spend money on politics, and that spending draws from the same dues pool that funds everything else. That is legal for a 501(c)(5), and it is one of the ways this status differs from charitable status. Federal law requires transparency: unions filing an LM-2 must break out political activities and lobbying as separate disbursement categories so members and the public can see the numbers.5U.S. Department of Labor. Reports Required Under the LMRDA and the CSRA Nonmember workers covered by a union contract also have separate rights, under the Supreme Court’s decision in Communications Workers of America v. Beck, to object to paying for activities unrelated to collective bargaining, contract administration, or grievance handling.
None of that changes the core answer. A union is a nonprofit organization, its money is legally committed to representing workers, and layered accountability rules exist to keep it that way.