You can leave a union at any time by sending a written resignation to the union and a separate written revocation of your dues deduction to your employer’s payroll department. Knowing how to leave a union matters because those are two different legal actions: resigning ends your membership, and revoking the checkoff stops the money coming out of your paycheck. Federal law protects your right to do both, and the Supreme Court has held that a union cannot fine or discipline you for walking away.1Justia U.S. Supreme Court Center. Pattern Makers v. NLRB, 473 U.S. 95 (1985) What you owe after you leave depends on where you work and who you work for.
Section 7 of the National Labor Relations Act gives every covered employee the right “to refrain from any or all” union activities, including membership itself.2Office of the Law Revision Counsel. 29 U.S. Code 157 – Right of Employees as to Organization, Collective Bargaining, Etc. A union bylaw that tries to lock you in during a strike or a certain time of year is unenforceable.
Why Resigning Isn’t Enough to Stop the Deductions
When you first joined, you likely signed two documents. A membership card made you a member. A separate dues checkoff authorization told payroll to withhold dues from every paycheck and forward them to the union.
That checkoff is a standalone contract, and it often contains an irrevocability window. A common form makes it irrevocable for one year at a time, or until the collective bargaining agreement expires, whichever comes first. If you resign your membership but never revoke the checkoff, your employer can legally keep deducting dues. If you revoke outside the window, the deductions continue until the next window opens.
Before you write anything, pull out your original checkoff card if you can find it. Look for the language describing when you can cancel. That controls the timing of when the money actually stops.
The Steps to Leave
Write the Resignation Letter
Address a short letter to the local union, directed to the secretary or treasurer who keeps membership records. Include your full legal name, your employee ID or whatever identifier payroll uses, and a plain statement that you are resigning your membership effective immediately. You do not have to give a reason. In the same letter, state that you revoke any authorization for the union or your employer to deduct dues or fees from your pay.
Notify Your Employer’s Payroll Department
Send a second letter, or a copy of the first, to payroll or HR instructing them to stop withholding union dues from your wages. The checkoff involves you, the union, and the employer, so telling only the union may not be enough to stop the deductions.
Send Both by Certified Mail
Use certified mail with return receipt requested. The return receipt fixes the date each party got your notice, which matters if the union later claims it never received your letter or if dues keep coming out of your check. Keep copies of the letters, the mailing receipts, and the returned green cards.
Check Your Pay Stubs
Watch the next several pay cycles. Deductions should stop once the resignation and revocation take effect under your checkoff’s terms. If they don’t, follow up in writing with both the union and your employer. Continued deductions after a valid resignation and revocation can be an unfair labor practice you can take to the National Labor Relations Board.3Office of the Law Revision Counsel. 29 U.S. Code 158 – Unfair Labor Practices
What You’ll Owe After You Leave
Resigning membership doesn’t automatically mean you pay the union nothing. Three situations produce three different answers.
Public-Sector Employees
If you work for a state, local, or other government employer, the Supreme Court’s 2018 decision in Janus v. AFSCME means you owe the union nothing after you resign. No dues, no agency fees, no reduced payments. A public employer cannot deduct any union fee from your pay unless you have affirmatively agreed, and you can withdraw that agreement.4Justia U.S. Supreme Court Center. Janus v. AFSCME, 585 U.S. ___ (2018)
Private-Sector Employees in Right-to-Work States
Section 14(b) of the NLRA lets each state decide whether workers can be required to pay a union as a condition of keeping their job.5Office of the Law Revision Counsel. 29 U.S. Code 164 – Construction of Provisions Twenty-six states have right-to-work laws that ban those requirements. In those states, once you’ve resigned and revoked, you owe nothing, and you cannot be fired or disciplined for refusing to pay.
Private-Sector Employees Everywhere Else
In the remaining states, a union security clause in the collective bargaining agreement can require every bargaining-unit employee, member or not, to pay a fee. But the Supreme Court’s decision in Communications Workers of America v. Beck caps what that fee can cover.6Justia U.S. Supreme Court Center. Communications Workers of America v. Beck, 487 U.S. 735 (1988)
As a fee-paying non-member (sometimes called financial core), you pay only the share of dues that funds collective bargaining, contract administration, and grievance handling. You cannot be required to fund the union’s political activity, lobbying, social events, or organizing at other employers. To claim this status, send the union a written objection, often called a Beck objection. Some unions require you to renew it annually inside a defined window. The union must give you a yearly breakdown of chargeable versus non-chargeable spending, and you can challenge the numbers.
If You Object on Religious Grounds
Section 19 of the NLRA gives a different route to workers whose sincere religious beliefs conflict with financially supporting a union. If you belong to a religion that has historically objected to joining or supporting labor organizations, you cannot be required to pay dues or fees.7Office of the Law Revision Counsel. 29 U.S. Code 169 – Employees With Religious Convictions Instead, your contract may direct you to pay the same amount to a nonreligious, non-labor charity, chosen from a list of at least three designated in the agreement. If none is listed, you can pick a qualifying charity yourself. One catch: if you later ask the union to handle a grievance for you, it can bill you the reasonable cost.
Title VII of the Civil Rights Act reaches further, protecting workers with sincere religious objections regardless of specific church affiliation, unless accommodating you would cause the employer or union undue hardship.
What You Give Up and What You Keep
Leaving membership costs you the rights that come with membership:
- You lose your vote on leadership elections, contract ratification, and strike authorization. The contract still binds you; you just won’t have shaped it.
- You can’t run for or hold union office, including steward.
- You forfeit member-only benefits some unions offer, such as scholarships, legal defense funds, discounted insurance, or hardship funds. Check what your union provides before you send the letter.
You also gain something. A union cannot fine or discipline a non-member for crossing a picket line or working during a strike. This is one reason some workers time their resignation before a labor dispute.
What you keep matters too. You stay in the bargaining unit. The union still negotiates your wages, hours, and conditions, and the employer must apply the contract to you the same way it applies to members. The union also owes you a duty of fair representation and cannot refuse to process your grievance because you left.8National Labor Relations Board. Right to Fair Representation If it does, you can file an unfair labor practice charge with the NLRB.
What Your Employer Can and Can’t Do
Your employer has to stay neutral. Federal law makes it an unfair labor practice for an employer to interfere with your Section 7 rights, and those rights run in both directions: joining and leaving.3Office of the Law Revision Counsel. 29 U.S. Code 158 – Unfair Labor Practices Your employer cannot pressure you to resign, help you draft the letter, or offer you anything for leaving. It also cannot punish you for staying.
What your employer can do is process the payroll change once you submit a valid revocation, and answer factual questions about the mechanics. The line between information and encouragement is thin, so handling the resignation yourself is the safer path.
If You Want the Union Gone Entirely
Resigning is an individual action. It changes your status and no one else’s; the union keeps representing the bargaining unit. If you and your coworkers want to remove the union altogether, that’s a different process called decertification, and it requires a petition to the NLRB signed by at least 30 percent of the bargaining unit and an election that a majority votes to decertify.9National Labor Relations Board. Decertification Election Timing rules restrict when the petition can be filed, particularly during the first year after certification and while a contract is in force.