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Learn what wrongful termination is, which firing practices are illegal and what laws employers and employees should both understand.
Illegal firing — also known as wrongful termination — occurs when an employer dismisses an employee for prohibited reasons, such as discrimination or retaliation. Although most employees work under at-will employment arrangements, there are still limits on when an employer can legally terminate a worker. We’ll explain what qualifies as wrongful termination, the laws that protect workers and what both employers and employees should know about termination rights.
Illegal firing, also known as wrongful termination, happens when an employer fires an employee in violation of federal, state or local law. While many employees may believe they were wrongfully terminated, federal and state laws determine whether a firing was actually unlawful. For example, it may be legal to terminate an employee for poor performance in a state that allows at-will employment. However, anti-discrimination laws make it illegal to fire someone based on a protected characteristic such as a disability.
In nearly every state except Montana, the answer is yes. Under at-will employment, employers can generally terminate employees at any time, for almost any reason or for no stated reason at all. However, at-will employment does not allow employers to fire workers for discriminatory, retaliatory or other unlawful reasons.
Employers also aren’t usually required to explain why someone was fired unless a contract or specific law says otherwise. While losing a job without a stated reason may qualify a worker for unemployment benefits, it doesn’t automatically mean the termination was illegal.
In this interview, labor and employment attorney Bryn Goodman explains what every business owner needs to know about wrongful termination.

Several actions can lead to wrongful termination claims, most of which involve violating employee rights protected by federal or state law. If you’re considering terminating an employee, make sure the decision isn’t based on any of the following factors.
Discrimination is one of the most common reasons employees file wrongful termination claims. Federal and state laws prohibit employers from firing workers based on protected characteristics such as race, religion, color, sexual orientation, gender or gender identity, national origin, age, disability or pregnancy.
Retaliation is another common basis for wrongful termination claims. According to Andrew Russell, a partner at McGuireWoods who specializes in employment law, employers cannot fire employees for engaging in certain legally protected activities.
“For example, an employee may report a potential safety violation, file a complaint about an underpayment of wages or report that they have been illegally harassed by a supervisor,” Russell explained. “This is all protected activity, and an employer may not fire an employee in retaliation for engaging in such activity.”
Common examples of protected activities include when an employee:
Terminating an employee for whistleblowing can expose your business to serious legal liability. Employees are generally protected from retaliation when they report suspected violations of the law, workplace safety concerns or other protected misconduct.
For example, if an employee reports a health or safety violation to the Occupational Safety and Health Administration (OSHA), you cannot terminate them for doing so. Employees may also be protected when they report other types of suspected wrongdoing.
In most states, it’s illegal to fire an employee because of an employer’s criminal activity. For example, it would be unlawful to terminate an employee for refusing to break the law or participate in illegal conduct.
Employees may have legal protections even if they never report the activity. In many states, refusing to take part in illegal conduct is enough.
Employment contracts can limit when or how an employee may be terminated. For example, a written contract may specify the circumstances that allow termination or outline steps an employer must follow before ending the employment relationship.
In some cases, an employment agreement may be implied by company policies or other employer actions. Before terminating an employee, review any agreements or policies that could affect the decision.
It’s illegal to terminate an employee for requesting protected employment leave under laws such as the Family and Medical Leave Act (FMLA). Many states also have unpaid and paid leave laws covering situations such as illness, parental leave and military service, so it’s important to understand the requirements that apply in your state.
It’s illegal to terminate an employee for requesting reasonable accommodations for a disability. For example, an employee may request changes to their work environment or job duties to help them perform their role. Employers are generally required to provide reasonable accommodations unless doing so would create an undue hardship for the business.
It’s illegal to terminate an employee for fulfilling certain civic duties, such as serving on a jury. According to the Jury Systems Improvement Act (JSIA), employers can’t fire or otherwise discipline workers because they’ve been called for federal jury service.
Voting may also be protected under state law. While federal law doesn’t require employers to provide paid time off to vote, most states have laws requiring employers to provide voting leave. Terminating an employee for using that leave could expose your business to legal liability.
Employers generally can’t require employees to take a lie detector test as a condition of employment. However, the Employee Polygraph Protection Act includes limited exceptions for certain employers and situations.
For example, government employers may use polygraph tests in some hiring decisions. Certain security service and pharmaceutical employers may also qualify for exemptions. Additional exceptions may apply when an employer is investigating a specific incident involving economic loss or injury to the business.
It’s illegal to fire an employee based on their citizenship or place of birth. Federal law prohibits employers from discriminating against workers because of their citizenship status or national origin.
While most employers in the U.S. operate under at-will employment laws, employers often fire workers because of genuine workplace issues. Here are some examples:
Terminations for these reasons are generally lawful as long as the decision isn’t based on discrimination, retaliation or another protected activity. Employers should still document the reason for the termination and follow any applicable company procedures.

Federal laws and regulations help protect employees from discrimination, retaliation and other unlawful workplace practices. Employers should understand the rules that apply to their workforce before making termination decisions. Here are some of the key federal laws to consider when handling an employee termination:
“Should an employer’s decision to fire an employee be motivated by the protected class of that employee as set forth in any of the above-referenced statutes or others, a court would likely find the termination to be discriminatory and illegal,” said Andrew Zelmanowitz, partner and employment law expert at Berger Singerman.
State and local laws don’t always match federal requirements and, in some cases, provide employees with additional protections. For example, Zelmanowitz noted that the Florida Civil Rights Act expands on Title VII by prohibiting discrimination based on additional characteristics, including disability and marital status.
Most employment laws focus on why an employee can or can’t be terminated. Others govern the process employers must follow when conducting large-scale layoffs. For example, the Worker Adjustment and Retraining Notification Act of 1988 (WARN Act) generally requires covered employers to provide advance written notice before certain plant closings and mass layoffs.
“When an employer institutes a mass layoff or closes a division of its operations, it may be required to provide advance notice to employees of the impending layoff in compliance with the WARN Act,” Zelmanowitz explained. “In jurisdictions where employees have additional rights by statute, compliance is required by the employer, including notice periods.”

An employer that illegally terminates an employee may face business lawsuits, government investigations, financial penalties and other legal consequences. Depending on the circumstances, those claims can result in significant liability. Here are some potential outcomes:
Source interviews were conducted for a previous version of this article.