Equal Pay Laws in Ohio: Gender Pay Gap Protections

The Equal Pay Act, 29 U.S.C. § 206(d), requires that employers pay employees of opposite sexes equally for substantially similar work performed under similar working conditions in the same establishment. The law covers employers with 15 or more employees. "Substantially similar work" means the jobs require substantially equal skill, effort, and responsibility, and are performed under similar working conditions; minor differences do not defeat the requirement of equal pay.

Title VII of the Civil Rights Act of 1964, 42 U.S.C. § 2000e, prohibits compensation discrimination based on race, color, religion, sex, and national origin for covered employers (15+ employees). The enforcement agency is the EEOC. Employers may defend unequal pay by proving a factor other than sex motivates the difference, such as a seniority system, merit system, or system measuring earnings by quality or quantity of production.

Federal remedies include back pay (with interest), liquidated damages equal to back pay, injunctive relief, and attorney fees and costs. The statute of limitations is generally two years, or three years for willful violations under the Equal Pay Act. Claims may be brought individually or as collective actions by similarly situated employees.

Ohio Revised Code section 4112.01 prohibits all employers in Ohio—including sole proprietorships and partnerships with even one employee—from discriminating in compensation based on sex, race, color, religion, national origin, disability, age, or any other protected characteristic. This state law is broader than federal law in three critical ways: (1) Ohio's law applies to all employers regardless of employee count, while the Equal Pay Act and Title VII require 15+ employees; (2) Ohio law explicitly prohibits compensation discrimination based on more protected classes than the federal Equal Pay Act, including race, color, religion, national origin, disability, and age, whereas the Equal Pay Act focuses narrowly on sex; and (3) Ohio law does not require the work to be "substantially similar"—employers must show the work is actually equal in skill, effort, and responsibility, applying a stricter standard.

Under Ohio Administrative Code 4112-5, charges must be filed with the State Employment Relations Board (SERB) within 180 days of the alleged violation. SERB will investigate and attempt conciliation. If conciliation fails, SERB may issue a determination and order. Remedies under Ohio law include back pay, front pay, compensatory damages for emotional distress and reputational harm, punitive damages if the violation was willful, attorney fees and costs, and reinstatement or other equitable relief.

Ohio's "pay transparency" does not yet require posting or disclosure of wage ranges, but employees have broad rights to discuss wages and compensation without retaliation under Ohio Revised Code section 4113.52. Ohio employers cannot require non-disclosure of compensation as a condition of employment. The state also follows the principle that legitimate business reasons (seniority, merit, incentive, or production-based systems) may justify wage differences, but the burden falls on the employer to prove the exception applies.

The primary defense to unequal pay claims is that the wage difference results from a factor other than the protected characteristic. Under the Equal Pay Act, employers may defend unequal pay if it results from a seniority system, merit system, system measuring earnings by quality or quantity of production, or any other factor other than sex, provided the system is applied consistently. Ohio courts recognize similar defenses but apply them strictly: the employer must prove the system is legitimate, applied consistently, and genuinely motivated the wage differential.

Commissions, bonuses, and incentive-based pay are not exempt but must be applied equally to employees performing substantially equal work. Collective bargaining agreements negotiated in good faith may include wage provisions that differ based on negotiated terms, but they do not eliminate the obligation to pay equally for equal work performed outside the bargaining unit or by unrepresented employees.

Independent contractors and unpaid volunteers are generally not covered by equal pay laws, as they are not "employees." Commissioned sales employees must still receive equal base compensation and benefits if performing substantially equal work. Temporary and part-time employees are covered and must receive equal hourly rates for equal work. Jobs in different job classifications or with genuinely different duties (supported by job descriptions and performance records) may justify wage differences. However, employers cannot create artificial job classifications to circumvent equal pay requirements. Red-circle rates (paying an employee above the market rate for personal reasons or historical salary) do not justify paying less to similarly situated employees, and may actually create reverse discrimination liability.

Step 1: Document Everything. Keep detailed records of your job duties, responsibilities, skill requirements, and working conditions. Obtain job descriptions for yourself and the comparator employee(s)—the person(s) you believe are performing substantially equal work but earning more. Document your own compensation structure: base salary, bonuses, commissions, benefits, health insurance, retirement contributions, paid time off, and any other compensation. Request your employer's written job description and compensation policy for your position. If your employer refuses, note the date and method of request. Take screenshots or copies of internal communications, organizational charts, pay stubs, and performance reviews that show wage information. Record the dates, amounts, and justifications (or lack thereof) for any raises, bonuses, or denials of compensation.

Step 2: Initiate Internal Complaint Process. Review your employer's anti-discrimination and grievance policy. If one exists, file a formal written complaint with your HR department, manager's supervisor, or compliance officer—whichever is appropriate under company policy. State clearly: (1) that you are performing substantially equal work to another employee(s) who is paid more, (2) the specific wage difference and the time period over which it occurred, (3) your protected characteristic (e.g., "I am a woman and the comparator is a man"), and (4) that you believe this violates Ohio Revised Code section 4112.01 or the federal Equal Pay Act. Send the complaint via email or hand-delivery with a signed receipt if possible, creating a timestamped record. Request a written response within 14 days. Keep copies of everything. The internal complaint process is important because it gives your employer an opportunity to cure the violation, may trigger a review that results in back pay, and demonstrates your good faith to regulators and courts.

Step 3: File a Charge with Ohio SERB or Federal EEOC. You have 180 days from the alleged violation to file. You have two options: (1) File with Ohio's State Employment Relations Board (SERB) at www.serb.ohio.gov or by mailing Ohio SERB, 65 East State Street, Suite 600, Columbus, OH 43215, phone (614) 466-3636. Include your name, contact information, employer name and address, description of the violation with specific dates and amounts, name of comparator employee(s) if known, and signature. There is no filing fee. (2) File with the federal EEOC at eeoc.gov/file-charge or by visiting your local EEOC field office. The nearest Ohio offices are in Columbus (614-469-5700) and Cleveland (216-522-3001). You must provide the same information: your identity, employer details, detailed description of discrimination, protected characteristic, and the basis (Equal Pay Act or Title VII). Filing with SERB does not preclude later federal filing, but filing with EEOC may trigger Ohio's deferral obligations. Keep your charge number and receipt.

Step 4: Investigation Process and Timeline. SERB or EEOC will send your employer a copy of your charge and request a response (typically within 30 days for EEOC, within 20 days for SERB). The investigator will contact you and your employer to request additional evidence: pay records, job descriptions, performance evaluations, witness statements, and compensation histories. Investigations typically take 60–180 days. You are not required to respond to employer requests directly—the agency conducts the investigation. The investigator will examine whether the jobs are substantially equal and whether the employer has a valid defense. You will receive the investigator's report and determination. If SERB finds reasonable cause, it will offer conciliation; if that fails, it will issue an order requiring the employer to cease the violation and pay back pay, damages, and costs. EEOC similarly issues a determination; if it finds reasonable cause, you receive a right-to-sue letter, which allows you to file a private lawsuit within 90 days.

Step 5: When to Consult an Attorney. Consult an employment attorney immediately if: (1) your employer retaliates against you after filing a complaint (discipline, demotion, termination, reduced hours, negative evaluations); (2) SERB or EEOC issues a determination against you, because you have only 14 days to file an appeal with SERB or 90 days to file federal court litigation; (3) you receive a right-to-sue letter from EEOC, because you must file suit within 90 days; (4) your employer offers a settlement and you want to ensure it is fair; or (5) the wage discrimination involves multiple employees and class action is possible. Many employment attorneys work on contingency (no upfront cost) and will take the case if damages are significant. Retain an attorney licensed in Ohio who specializes in employment discrimination or wage disputes.