Federal employment law protects a short, fixed list of traits, and anything outside that list is not a protected class under federal law. The federal list covers race, color, religion, sex (including pregnancy, sexual orientation, and gender identity), national origin, age if you are 40 or older, disability, and genetic information.1U.S. Equal Employment Opportunity Commission. 3. Who Is Protected from Employment Discrimination? Everything else — how well you do your job, whether people like working with you, your politics, your tattoos, your criminal record, your credit score, your degree, your marital status — sits outside federal protection. Employers can generally use those things when they hire, fire, and promote.
That is the short answer. The longer answer is that “not protected” is not the same as “always fair game.” Several unprotected traits become legally risky for an employer when they function as a stand-in for a protected one, when they trigger a separate federal statute like the National Labor Relations Act or the Fair Credit Reporting Act, or when state and local law fills the gap. The sections below walk through the traits people most often assume are protected, and where the real limits sit.
Job Performance and Conduct
Poor performance is not a protected characteristic and never has been. Every state except Montana follows the at-will employment doctrine, which lets either side end the relationship at any time for any reason that is not specifically illegal.2USAGov. Termination Guidance for Employers Missing sales targets, sloppy work, chronic lateness, or violating a workplace policy all give an employer a legal reason to let you go.
The one thing to watch: if the employer applies performance scrutiny only to members of a protected group, the firing is no longer about performance. It is pretext for discrimination, and the underlying trait — race, sex, age, disability — is what makes the claim viable.
Personality and “Culture Fit”
Being hard to work with is not protected. “Culture fit” is subjective, and courts routinely allow terminations on that basis so long as the personality complaint is not a smokescreen for bias against a protected trait.
One important exception catches employers off guard. Section 7 of the National Labor Relations Act gives private-sector employees the right to engage in “concerted activity” for mutual aid or protection.3National Labor Relations Board. Interfering with Employee Rights If you and your coworkers are complaining together about wages, working conditions, or safety, your employer cannot fire you for it, even though management may describe the behavior as “negative” or “disruptive.” A single employee bringing a group complaint to management also counts. Purely personal gripes do not.
Political Beliefs and Affiliations
Political views are not a protected class under any federal employment statute. Title VII covers race, color, religion, sex, and national origin, and says nothing about party membership or ideology.4U.S. Equal Employment Opportunity Commission. Title VII of the Civil Rights Act of 1964 A private employer can fire you for a rally, a bumper sticker, or a social media post. The First Amendment restricts the government, not private companies.
Public-sector workers get some protection. The Supreme Court has recognized that government employees retain a right to speak as citizens on matters of public concern, balanced against the agency’s interest in running an efficient workplace.5Constitution Annotated. Amdt1.7.9.4 Pickering Balancing Test for Government Employee Speech Speech made as part of official duties gets no First Amendment protection at all.
Roughly a dozen states, including California, New York, and Colorado, protect private-sector workers from termination for lawful off-duty political activity. Federal law does not.
Physical Appearance, Weight, and Grooming
Height, weight, tattoos, piercings, hair color, and general grooming are not federally protected. The EEOC’s list of protected traits does not include personal appearance.1U.S. Equal Employment Opportunity Commission. 3. Who Is Protected from Employment Discrimination? Employers can enforce dress codes, require uniforms, ban visible body art, and set grooming standards, and courts uphold those policies when they are applied evenly.
Weight is legal to consider almost everywhere. Michigan is the only state with an explicit statewide ban on weight-based employment discrimination, and a handful of cities including San Francisco and Washington, D.C. have local ordinances. Obesity by itself is not a disability under the ADA unless it stems from an underlying physiological condition; federal circuit courts have said so repeatedly.
Two significant limits sit on top of these rules. First, religion. If a grooming policy conflicts with a sincerely held religious belief — a required beard, a head covering, a particular hairstyle — the employer must accommodate unless doing so imposes a substantial burden on the business.6U.S. Supreme Court. Groff v. DeJoy That is a much higher bar than the old “minor cost” standard. Second, hair. No federal law directly protects natural hair texture, and the federal CROWN Act has been introduced repeatedly without becoming law.7U.S. Congress. H.R.1638 – CROWN Act of 2025 But 27 states and Washington, D.C. have passed their own CROWN Act laws prohibiting discrimination based on hair texture and protective styles like braids, locs, and twists. And the EEOC has treated some hair-texture policies as race discrimination under Title VII, on the theory that the rule targets a trait closely tied to race.
Criminal Records and Credit History
A criminal record does not make you a member of a federal protected class, and neither does a poor credit score. Background checks are legal, and having a felony conviction or a debt history is a lawful basis to turn someone down in most cases. Three complications matter.
Bankruptcy is treated differently. Federal law prohibits private employers from firing or otherwise discriminating against you on the job solely because you filed for bankruptcy, were insolvent, or failed to pay a dischargeable debt.8Office of the Law Revision Counsel. 11 U.S. Code 525 – Protection Against Discriminatory Treatment Government employers face a broader restriction that also covers hiring. Whether a private employer can refuse to hire on the same basis is less settled, because the statute’s language about private employers does not explicitly mention refusal to hire.
Criminal history triggers a disparate-impact rule. Even though a criminal record is not protected, a blanket “no felons” policy can violate Title VII if it disproportionately excludes people of a particular race or national origin. The EEOC expects employers to conduct an individualized assessment weighing the nature and seriousness of the offense, the time that has passed, and the nature of the job.9U.S. Equal Employment Opportunity Commission. Enforcement Guidance on the Consideration of Arrest and Conviction Records in Employment Decisions Under Title VII Beyond that, 37 states and more than 150 cities and counties have adopted “ban-the-box” or fair-chance laws that restrict when employers can ask about criminal history.
The Fair Credit Reporting Act sits over the whole process. Before an employer takes adverse action based on a consumer report — credit check or criminal background check — it must give you a copy of the report and a written summary of your rights.10Federal Trade Commission. Using Consumer Reports: What Employers Need to Know Skipping that step creates liability even where the decision itself was lawful.
Education and Socioeconomic Status
Educational background, wealth, and social class are not federal protected classes. An employer can prefer certain schools, require specific degrees, or filter for a particular socioeconomic profile.
The most common problem arises with age. The Age Discrimination in Employment Act prohibits facially neutral practices that harm workers 40 and older unless the employer can show the practice rests on a “reasonable factor other than age.”11U.S. Equal Employment Opportunity Commission. Questions and Answers on EEOC Final Rule on Disparate Impact and Reasonable Factors Other Than Age Requiring a recently earned degree for a job an experienced worker could perform is a classic example. Filters based on neighborhood, accent, or “polish” also risk functioning as proxies for race or national origin, both of which Title VII does protect.
Other Traits Federal Law Does Not Cover
A few other traits come up often in workplace disputes and lack federal protection:
- Marital and family status. Federal employment law does not prohibit employers from considering whether you are single, married, or divorced. Many states include marital status in their own civil rights statutes.
- Smoking and lifestyle choices. Employers can refuse to hire smokers and impose wellness requirements. Some states restrict this through off-duty conduct laws.
- Language and accent. Speaking with an accent or being bilingual is not itself protected. But English-only rules and fluency requirements that are not genuinely job-related can amount to national origin discrimination under Title VII, because they disproportionately affect workers from particular countries or ethnic backgrounds.
- Union membership as a general status. The NLRA protects the right to organize and to engage in concerted activity, but “union sympathizer” is not a protected class under Title VII or the ADEA. The protection comes from the NLRA and is enforced by the National Labor Relations Board.
When an Unprotected Trait Still Creates Legal Risk
The most important point about this list is that “not protected” does not mean “always usable without consequence.” Three doctrines regularly turn an unprotected trait into an actionable claim.
Pretext. A performance-based firing, a personality complaint, or an appearance rule that gets applied only to workers of one race, sex, or age group is not really about the surface reason. It is about the protected trait underneath, and Title VII, the ADEA, and the ADA reach that conduct.
Disparate impact. A neutral policy that screens for something facially unprotected — criminal history, a degree requirement, a fitness test, a hair rule — can still violate federal law if it disproportionately excludes members of a protected class and the employer cannot show the policy is job-related and consistent with business necessity. A strength test may be legal for a firefighting job and illegal for a desk job.
Retaliation. Even when the trait you complained about turns out not to be protected, you may still be shielded from retaliation for raising the complaint. EEOC guidance protects employees who oppose a practice they reasonably and in good faith believe violates anti-discrimination law, even if the conduct opposed turns out to be legal.12U.S. Equal Employment Opportunity Commission. Enforcement Guidance on Retaliation and Related Issues The belief has to be tied to an actual EEO statute, not a general sense of unfairness, but the protection is broader than most workers assume.
Separate immigration-related protections also exist. Employers with four or more workers cannot discriminate based on citizenship status against U.S. citizens, permanent residents, refugees, and asylees.13Office of the Law Revision Counsel. 8 U.S. Code 1324b – Unfair Immigration-Related Employment Practices
State and Local Law Fills Many of the Gaps
Federal protected classes are a floor, not a ceiling. State and local governments have added protections for many of the traits in this article. Twenty-seven states and Washington, D.C. now protect natural hair. Roughly a dozen states shield private-sector workers from retaliation for lawful off-duty political activity. Michigan bans weight discrimination statewide, and several cities have similar ordinances. Many states protect marital status, military status, and sexual orientation through their own civil rights laws, some of which predated the federal developments in those areas.
Before assuming a trait is fair game because federal law does not name it, check your state and local rules. A state labor agency or an employment attorney in your jurisdiction can usually tell you in minutes whether the trait carries local protection.