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Employment law and compliance

What is a protected class?

A plain-English definition of protected class, how it works, a worked example, and the mistakes US employers make, checked against primary sources.

HRTally Research Team
Updated October 25, 2026 · 7 min read · Editorial standards
Definition

A protected class is a group of people legally shielded from employment discrimination because of a shared characteristic. Under federal law, protected characteristics include race, color, religion, sex (including pregnancy, sexual orientation, and gender identity), national origin, age 40 and older, disability, genetic information, citizenship status, and military service.

Key takeaways

  • Everyone belongs to several protected classes; the law protects characteristics, not only minority groups.
  • Age protection under federal law starts at 40; some states protect younger workers too.
  • Many states add characteristics such as marital status, height and weight, or hairstyle.
  • Retaliation for opposing discrimination is protected even if the employee isn't in the affected group.

How protected class works

Federal protections come from several laws. Title VII covers race, color, religion, sex, and national origin. The Age Discrimination in Employment Act protects workers 40 and older (EEOC, Age discrimination). The ADA covers disability, GINA covers genetic information, the Immigration Reform and Control Act covers citizenship status, and USERRA protects service members and veterans.

State and local laws often go further. Common additions include marital status, sexual orientation and gender identity in explicit terms, hairstyles associated with race under CROWN Act laws, height and weight in Michigan and some cities, and source of income or caregiver status in some places. Employers must follow whichever rule is more protective.

Protection applies across the employment lifecycle: job ads, interviews, pay, assignments, promotions, discipline, and termination.

Protected class example

A hiring manager writes in interview notes, "great energy, but probably wants to retire soon," about a 58-year-old candidate. Even if the company hires someone else for legitimate reasons, that note is direct evidence of age bias in a later charge. Structured interviews with written scoring criteria, covered in our structured interview entry, keep decisions anchored to job-related factors.

Why protected class matters for employers

Discrimination claims touch every protected characteristic. In fiscal year 2024, disability appeared in 38.0% of EEOC charges, race in 34.2%, and sex in 30.4% (FY2024 EEOC enforcement statistics summary (CWC)). Knowing which characteristics are protected where you operate is the starting point for training, policy, and system design.

Data also matters. Pay equity reviews, EEO-1 reporting, and adverse impact checks all depend on accurate, voluntarily provided demographic data. An HRIS with role-based access keeps that data available for compliance and away from decision-makers.

Common protected class mistakes to avoid

Assuming federal law is the whole list

State and city laws add characteristics and cover smaller employers.

Asking about protected traits in interviews

Questions about age, family plans, religion, or national origin invite claims.

Thinking majority groups aren't protected

Protections apply to everyone based on the characteristic.

Letting demographic data reach decision-makers

Store it separately with restricted access.

Protected class: questions people also ask

What are the federal protected classes?
Race, color, religion, sex (including pregnancy, sexual orientation, and gender identity), national origin, age 40 and older, disability, genetic information, citizenship status, and military or veteran status.
Is age a protected class?
Yes, for workers 40 and older under federal law. Some states protect younger workers as well.
Are sexual orientation and gender identity protected?
Yes. The Supreme Court held in 2020 that Title VII's ban on sex discrimination covers both.
Is marital status a protected class?
Not under federal employment law, but many states protect it.
Can an employer ask about protected characteristics?
Only in limited ways, such as voluntary self-identification for EEO reporting, kept separate from hiring decisions.

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How we wrote this definition

HRTally glossary entries are written by people who have run US payroll, benefits, and HR operations, then checked line by line against primary sources such as the IRS, Department of Labor, EEOC, and Bureau of Labor Statistics. Dollar limits and rates are for 2026 unless stated. We review every entry at least twice a year and whenever a rule changes. This page explains general rules and isn't legal or tax advice; state law can differ. Read our editorial standards.

Sources

Cite this definition

Teachers, consultants, and HR communities are welcome to quote this definition with a link back to HRTally.

<blockquote>A protected class is a group of people legally shielded from employment discrimination because of a shared characteristic. Under federal law, protected characteristics include race, color, religion, sex (including pregnancy, sexual orientation, and gender identity), national origin, age 40 and older, disability, genetic information, citizenship status, and military service.</blockquote><p>Source: <a href="https://www.hrtally.com/hr-glossary/protected-class/">HRTally HR Glossary, Protected class</a></p>

Written by the HRTally Research Team

Our guides are written and reviewed by people with hands-on US HR, payroll, and HR technology experience. Legal and tax facts are checked against primary sources, such as the Department of Labor, IRS, EEOC, and USCIS, and linked at the end of each guide. Vendors never review or pay for our editorial content.

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