Equal Pay Laws in Pennsylvania: Gender Pay Gap Protections

The Equal Pay Act of 1963, 29 U.S.C. § 206(d), requires that employers pay men and women equally for substantially equal work in the same establishment. The law applies to employers with two or more employees engaged in commerce, though the Department of Labor enforces the statute. Substantially equal work means the jobs require substantially equal skill, effort, and responsibility, and are performed under similar working conditions—job titles do not control the analysis.

Title VII of the Civil Rights Act of 1964, 42 U.S.C. § 2000e-2, also prohibits sex-based wage discrimination by covered employers (15 or more employees for 20 weeks in the current or preceding year). The Equal Pay Act permits employers to defend unequal pay if the difference is based on seniority, merit, piecework production, or a factor other than sex. However, the burden shifts to the employer to prove the defense by clear and convincing evidence once the employee establishes a prima facie case of unequal pay for substantially equal work.

Federal remedies include back pay (wages owed from the discriminatory pay decision), front pay (future wages until equalization), liquidated damages equal to the back pay award, and attorney fees and costs. The EEOC enforces Title VII claims; private plaintiffs can pursue Equal Pay Act claims in federal or state court without first filing with the EEOC.

Pennsylvania's Human Relations Act, 43 P.S. § 955(a), prohibits discrimination in compensation and other terms and conditions of employment based on sex. The law applies to employers with one or more employees—a significantly lower threshold than federal law, which generally requires 15 employees under Title VII. This broader coverage means that small employers and sole proprietorships in Pennsylvania are subject to state equal pay protections even if they fall below federal thresholds.

Pennsylvania law is substantively similar to the Equal Pay Act but with important procedural differences. The Pennsylvania law does not require that jobs be in the "same establishment" as the federal Equal Pay Act does; Pennsylvania courts have interpreted the statute to protect against wage discrimination more broadly. Additionally, Pennsylvania recognizes that equal pay violations can arise not only from direct comparisons to opposite-sex employees but also from patterns of wage discrimination based on sex in job classification, hiring, or promotion decisions that affect compensation.

Pennsylvania employers are still subject to the federal Equal Pay Act if they meet federal coverage requirements, and employees may pursue claims under both laws simultaneously. The state law does not include explicit statutory defenses comparable to the federal "factor other than sex" defense, although Pennsylvania courts recognize legitimate business reasons for pay differences. Remedies under Pennsylvania law include back pay, front pay, compensatory damages for emotional distress and other harms, punitive damages in cases of willful discrimination, and attorney fees and costs.

The Pennsylvania Human Relations Commission (PHRC) investigates state-level equal pay charges and may attempt conciliation. If conciliation fails, the PHRC can issue a finding of probable cause and refer the case to the Pennsylvania Human Relations Commission's enforcement unit. Employees can also pursue civil litigation in Pennsylvania state courts, where they may recover broader damages than under the Equal Pay Act alone.

The Pennsylvania equal pay law, like the federal Equal Pay Act, does not apply to bona fide seniority or merit systems that are nondiscriminatory in application and administration. Employers may pay different wages based on piecework production systems or other objective factors unrelated to sex, provided the system is administered consistently and the difference is not a pretext for sex discrimination. However, the employer bears the burden of proving by clear and convincing evidence that the pay difference falls within a recognized exception.

An important limitation in Pennsylvania law is that equal pay protections typically require comparison to a similarly-situated employee of the opposite sex in the same or substantially similar role. Employees cannot simply point to general wage statistics showing that women earn less than men in their company; they must identify a specific comparator performing substantially equal work. However, Pennsylvania courts have recognized that multiple comparators, or a pattern of systematically lower pay for women in related positions, may establish a claim even without a perfect individual comparator.

Pennsylvania's at-will employment doctrine applies to wage discrimination claims—an employee can be terminated for any reason unrelated to protected status. However, termination in retaliation for opposing equal pay discrimination or participating in an investigation is unlawful. Independent contractors are not covered by the Pennsylvania Human Relations Act; the classification as contractor versus employee is determined under common law factors, not the company's designation.

Small employers with one employee are covered under Pennsylvania law but may assert affirmative defenses based on legitimate business factors. Religious organizations and certain nonprofit employers may have limited exceptions under narrow circumstances, but most private employers cannot claim a religious or nonprofit exemption from equal pay obligations. Union-negotiated pay scales that systematically undercompensate women based on historical discrimination are not automatically exempt from equal pay scrutiny.

Step 1: Document the wage discrimination by collecting pay stubs, salary records, job descriptions, and performance evaluations for yourself and any comparators. Keep records of hire dates, promotion dates, job duties, hours worked, and any communications from management about pay decisions. Take screenshots of internal salary databases or pay equity audits if accessible. Document the dates you became aware of the pay disparity and any communications with management about the unequal pay. Retain all documents even after employment ends, as they are essential evidence.

Step 2: File an internal complaint if your employer has an equal pay or anti-discrimination policy. Review the employee handbook for the internal complaint procedure and follow it precisely, including submitting written complaints to HR or management. Document that you raised the issue internally, including the date, to whom you reported it, and what response you received. Internal complaints sometimes preserve evidence and may support retaliation claims if the employer retaliates after you complain. However, Pennsylvania does not require internal complaint exhaustion before filing with the PHRC; proceeding directly to the PHRC is permissible.

Step 3: File a charge with the Pennsylvania Human Relations Commission within 300 days of the discriminatory pay decision. Submit the charge online at www.phrc.pa.gov or by mail to the PHRC office serving your county. Include your name, address, phone number, the employer's name and address, a description of the discriminatory pay practice, the date the discrimination began, and the name of any known comparator paid more. The filing fee is minimal or waived. The PHRC will acknowledge receipt and assign an investigator. Simultaneously, consider consulting an employment attorney who handles equal pay cases in Pennsylvania to ensure your claim is properly framed and to advise on federal filing options.

Step 4: Participate in the PHRC investigation, which typically lasts 90 days but can extend to 180 days or longer. The investigator will request documents from the employer, interview you and the employer, and may subpoena payroll records and other evidence. Respond promptly to investigator requests and provide clear, organized documentation. The PHRC will issue a determination of probable cause or no probable cause. If probable cause is found, the PHRC will attempt conciliation; if conciliation fails, the case proceeds to a public hearing before an administrative law judge. Attend all scheduled meetings and hearings and bring copies of all supporting documents.

Step 5: Consult an employment law attorney specializing in equal pay or wage discrimination cases before or immediately after filing with the PHRC. An attorney can assess whether you have a viable claim under both Pennsylvania law and the federal Equal Pay Act, advise on parallel federal filing options with the EEOC, and represent you in PHRC proceedings and potential litigation. If the PHRC issues a right-to-sue letter after 180 days (or if the case is not resolved), your attorney can file suit in Pennsylvania Superior Court or federal court. Attorney representation significantly improves outcomes in complex equal pay cases.