Definition
Employment discrimination is the unlawful practice of treating an employee or job applicant unfavorably because of a legally protected characteristic, such as race, color, religion, sex, national origin, age, or disability. It can occur at any stage of employment, including hiring, firing, pay, promotions, job assignments, training, benefits, and other terms and conditions of work. Federal anti-discrimination laws are enforced primarily through the Equal Employment Opportunity Commission (EEOC), and many states provide broader protections of their own.
Legal Meaning
Not every unfair decision by an employer is illegal discrimination. The law targets adverse treatment that is based on a protected characteristic. The foundation of federal protection is Title VII of the Civil Rights Act of 1964, which prohibits discrimination based on race, color, religion, sex, and national origin. The definition of "sex" has been read to include pregnancy and, under more recent Supreme Court precedent, sexual orientation and gender identity. Other federal statutes round out the framework: the Age Discrimination in Employment Act (ADEA) protects workers 40 and older, the Americans with Disabilities Act (ADA) protects qualified individuals with disabilities, and the Genetic Information Nondiscrimination Act (GINA) protects against discrimination based on genetic information.
Discrimination claims generally fall into two categories. Disparate treatment is intentional discrimination—an employer treats a person less favorably specifically because of a protected trait, such as refusing to promote someone because of their religion. Disparate impact involves a facially neutral policy or practice that is not intended to discriminate but nonetheless falls more harshly on a protected group and cannot be justified by business necessity. A common example is a physical or testing requirement that screens out members of a protected group without being truly job-related.
The ADA adds an additional dimension: employers must provide reasonable accommodations to qualified employees with disabilities, and to religious practices under Title VII, unless doing so would impose an undue hardship. The law also forbids retaliation against workers who report discrimination, file a charge, or participate in an investigation. Closely related claims include sexual harassment and unlawful firing, addressed in our term on wrongful termination.
Key Points
- Federal law bans discrimination based on race, color, religion, sex, national origin, age (40+), disability, and genetic information
- Title VII, the ADA, the ADEA, and GINA are the core federal statutes, enforced largely by the EEOC
- Disparate treatment is intentional discrimination; disparate impact involves neutral policies that disproportionately harm a protected group
- Employers must reasonably accommodate disabilities and religious practices absent undue hardship
- Retaliation for complaining about or reporting discrimination is itself illegal
- Most federal claims require filing an EEOC charge before going to court
- Charge deadlines are short, generally 180 days, extended to 300 days where a state agency enforces a parallel law
- Many states and cities protect additional categories and cover smaller employers than federal law
Real-World Example
Devon, a qualified employee over 40, applies for a promotion but is passed over in favor of a younger, less experienced colleague. Devon's manager has repeatedly made comments about wanting "fresh, younger energy" on the team. This is a potential disparate treatment claim under the ADEA, because the unfavorable decision appears tied to Devon's age.
Devon files a charge with the EEOC within the deadline. The agency investigates, may attempt to resolve the matter through mediation or conciliation, and ultimately issues a notice of right to sue. With that notice, Devon can file a lawsuit in court seeking remedies that may include back pay, reinstatement or the promotion, and other relief. Throughout the process, the employer is legally barred from retaliating against Devon for filing the charge.
Major Federal Anti-Discrimination Laws
| Law | Protects Against Discrimination Based On | Notes |
|---|---|---|
| Title VII (Civil Rights Act) | Race, color, religion, sex, national origin | Sex includes pregnancy, sexual orientation, gender identity |
| ADA | Disability | Requires reasonable accommodation absent undue hardship |
| ADEA | Age 40 and older | Protects older workers from age-based bias |
| Equal Pay Act | Sex-based pay differences for equal work | Addresses wage discrimination specifically |
| GINA | Genetic information | Limits use of family medical history and genetic data |
| State / Local Laws | Often broader categories and smaller employers | May add traits like marital status or sexual orientation explicitly |
The EEOC Charge Process
For most federal discrimination claims, an employee cannot go straight to court. Instead, they must first file a "charge of discrimination" with the EEOC or an equivalent state or local fair employment agency. This administrative step is mandatory, and the deadline is short: generally within 180 days of the discriminatory act, extended to 300 days where a state or local agency enforces a parallel anti-discrimination law. Equal Pay Act claims and federal-sector employees follow different procedures and timelines.
After a charge is filed, the agency notifies the employer and may investigate, request documents and interviews, or offer voluntary mediation. The agency can attempt to resolve the dispute, make a finding, or decline to pursue it further. In most cases, before a private lawsuit can proceed, the worker must receive a "notice of right to sue," which then opens a separate, short window—commonly 90 days—to file a lawsuit in court. Because each step carries a deadline, prompt action is essential, and the broader concept of filing deadlines is covered in our term on the statute of limitations.
Related Terms
Facing Discrimination at Work?
An employment lawyer can evaluate your claim, protect your deadlines, and guide you through the EEOC process
Explore Employment Law HelpWhen You Need a Lawyer
Discrimination cases are deadline-driven and evidence-intensive, and an experienced employment attorney can significantly strengthen your position. You should consider consulting a lawyer if:
- You believe an employment decision was based on your race, sex, religion, age, disability, or other protected trait
- You requested a reasonable accommodation for a disability or religious practice and it was denied
- You faced retaliation after complaining about discrimination or harassment
- You need help filing an EEOC charge correctly and on time
- You received a right-to-sue notice and are weighing whether to file a lawsuit
Many employment attorneys offer free initial consultations and handle discrimination cases on a contingency or fee-shifting basis, which can make representation accessible.
Frequently Asked Questions
What counts as illegal employment discrimination?
Illegal employment discrimination occurs when an employer treats a worker or applicant unfavorably because of a legally protected characteristic, such as race, color, religion, sex, national origin, age, or disability. It can affect hiring, firing, pay, promotions, job assignments, training, and other terms of employment. Unfair treatment based on something that is not a protected class is generally not unlawful discrimination, even if it feels unjust.
What are the protected classes under federal law?
Federal law protects against discrimination based on race, color, religion, sex (including pregnancy, sexual orientation, and gender identity), and national origin under Title VII; age 40 and older under the ADEA; disability under the ADA; and genetic information under GINA. Many states and cities add further protected categories, so the full list of protections depends on where you work.
What is the difference between disparate treatment and disparate impact?
Disparate treatment is intentional discrimination, where an employer treats someone worse specifically because of a protected trait. Disparate impact involves a neutral policy or practice that is not intended to discriminate but disproportionately harms a protected group and cannot be justified by business necessity. Both can be unlawful, but they require different kinds of proof.
Do I have to file with the EEOC before suing?
For most federal discrimination claims, yes. You generally must file a charge with the Equal Employment Opportunity Commission or an equivalent state agency and obtain a notice of right to sue before filing a lawsuit in court. This administrative step is a prerequisite, and missing the filing deadline can bar your claim, so it is important to act promptly.
How long do I have to file a discrimination charge?
Federal deadlines are short. A charge with the EEOC generally must be filed within 180 days of the discriminatory act, extended to 300 days in places where a state or local agency enforces a parallel law. Different rules and deadlines can apply to federal employees and to certain claims, so you should confirm the deadline that applies to your situation as soon as possible.
Choosing the Right Help
Selecting an experienced employment attorney can make a real difference in a discrimination matter. For help understanding fees and how to evaluate lawyers, see our guides: