| Federal Minimum Wage | $7.25 per hour (U.S. Department of Labor; many states and localities set higher rates) |
| FLSA Overtime Threshold | 40 hours per workweek (U.S. Department of Labor, Fair Labor Standards Act) |
| FMLA Employer Coverage Threshold | 50 or more employees (U.S. Department of Labor, FMLA regulations) |
| I-9 Retention Period | 3 years from hire or 1 year post-termination (whichever is later) (U.S. Citizenship and Immigration Services (USCIS)) |
| EEOC-Protected Characteristics | Race, color, religion, sex, national origin, age (40+), disability, genetic information (U.S. Equal Employment Opportunity Commission) |
The Federal Foundation of Employer Obligations
Employment law in the United States operates on multiple levels — federal statutes set a nationwide baseline, while state and local laws often impose additional or stricter requirements. For any business with employees, understanding the federal floor is the starting point.
| Federal Minimum Wage | $7.25 per hour (U.S. Department of Labor; many states and localities set higher rates) |
| FLSA Overtime Threshold | 40 hours per workweek (U.S. Department of Labor, Fair Labor Standards Act) |
| FMLA Employer Coverage Threshold | 50 or more employees (U.S. Department of Labor, FMLA regulations) |
| I-9 Retention Period | 3 years from hire or 1 year post-termination (whichever is later) (U.S. Citizenship and Immigration Services (USCIS)) |
| EEOC-Protected Characteristics | Race, color, religion, sex, national origin, age (40+), disability, genetic information (U.S. Equal Employment Opportunity Commission) |
The Fair Labor Standards Act (FLSA) establishes the federal minimum wage, overtime pay rules (time-and-a-half for hours worked beyond 40 in a workweek for covered employees), and child labor standards. The Occupational Safety and Health Act (OSHA) requires employers to maintain a workplace free from recognized hazards and to comply with applicable safety standards. The Equal Pay Act mandates equal pay for substantially equal work regardless of sex.
Beyond wages and safety, federal anti-discrimination law — administered primarily through the EEOC — prohibits employment decisions based on race, color, religion, sex, national origin, age (40 and older), disability, and genetic information. These protections apply across hiring, discipline, compensation, and termination. See the HR Compliance Essentials reference guide for a broader map of these obligations.
Mandatory Notices, Records, and Workplace Postings
Federal and state agencies require employers to display approved workplace posters where employees can readily see them. These typically include notices about minimum wage rights, OSHA protections, FMLA eligibility, and anti-discrimination policies. Failure to post required notices can result in fines and may complicate enforcement proceedings.
Fair Labor Standards Act (FLSA)
A federal law establishing the national minimum wage, overtime pay requirements, and child labor rules. It sets the baseline wage-and-hour standards for most private and public employers.
OSHA
The Occupational Safety and Health Administration enforces federal workplace safety standards. Covered employers must provide a hazard-free environment and maintain injury/illness records.
Form I-9
A federal form employers must complete for every new hire to verify identity and eligibility to work in the United States. Retention periods are set by regulation.
FMLA
The Family and Medical Leave Act entitles eligible employees at covered employers to up to 12 weeks of unpaid, job-protected leave per year for qualifying medical or family events.
ERISA
The Employee Retirement Income Security Act governs employer-sponsored benefit plans including retirement and health plans, setting standards for plan administration, disclosure, and fiduciary responsibility.
At-Will Employment
The default employment relationship in most U.S. states, under which either party can end employment at any time for any lawful reason. Exceptions include anti-discrimination protections and contractual agreements.
Recordkeeping is equally non-negotiable. The FLSA requires employers to retain payroll records — including hours worked and wages paid — for at least three years. OSHA mandates injury and illness logs for most employers with more than ten employees. The IRCA requires a completed Form I-9 for every employee to verify work authorization, retained for three years from the hire date or one year after employment ends, whichever is later.
Employers should also be aware of data-related obligations. Personally identifiable employee information is subject to a growing body of privacy regulation. The overview of data privacy laws explains key frameworks businesses must account for when handling employee records.
Leave, Benefits, and Workers' Compensation
The Family and Medical Leave Act (FMLA) applies to employers with 50 or more employees, entitling eligible workers to up to 12 weeks of unpaid, job-protected leave for qualifying family or medical reasons. Smaller employers should review state family leave laws, which often apply at lower thresholds and may provide paid leave.
State Laws Often Go Further
Federal employment law sets a minimum — state and local jurisdictions frequently impose stricter requirements on minimum wage, paid leave, anti-discrimination protections, and workers' compensation. Employers operating in multiple states must track each jurisdiction's rules separately. Always verify current requirements with a licensed employment attorney familiar with the states where your employees work.
Workers' compensation insurance is a separate but closely related obligation. Most U.S. states legally require employers to carry it, and the specifics — including coverage minimums and exemptions — vary considerably by state. The workers' compensation core concepts overview explains how coverage works and what triggers a claim.
Employers with 50 or more full-time equivalent employees are also subject to the ACA's employer shared responsibility provisions, which require offering minimum essential health coverage or facing potential tax penalties. Retirement plan obligations, by contrast, are generally voluntary at the federal level — though offering them carries its own compliance requirements under ERISA.
For businesses building out their employment infrastructure from scratch, the compliant hiring process guide and the day-one regulatory compliance guide provide practical next steps. Employment law compliance is not a one-time task — it requires ongoing attention as regulations evolve and your workforce grows.
This article provides general legal information for educational purposes only and is not a substitute for advice from a licensed employment attorney or qualified HR professional familiar with your specific situation and jurisdiction.