By Millions of American workers put in extra hours every week and millions of them are not paid correctly for it. Whether you’re an hourly employee who regularly clocks more than forty hours, a salaried worker who has been misclassified as exempt, or a manager who handles shift work alongside administrative duties, understanding exactly how overtime pay is calculated under federal labour law is the first step toward knowing whether your employer is paying you what the law requires.
The rules governing overtime are older than most people realize, and more nuanced than most employers let on. The Fair Labor Standards Act (FLSA) has set the baseline framework for overtime pay in the United States since 1938 and while the law may seem straightforward on its surface, the details of how overtime is computed, who qualifies, and what counts as part of the “regular rate” of pay are areas where both honest mistakes and deliberate wage theft are surprisingly common.
This guide breaks down the overtime pay formula under federal law in plain language: what it requires, how to apply it to your own situation, what exemptions actually mean, and what you can do if you believe your employer has been shortchanging you.
What Is Overtime Pay Under Federal Law?
Under the FLSA, overtime pay is mandatory compensation that employers must provide to eligible employees when they work more than 40 hours in a single workweek. The federal minimum overtime rate is one and one-half times the employee’s regular rate of pay colloquially known as “time and a half.” This is not a suggestion or a best practice; it is a legal floor that applies to virtually every covered employer in the country.
A “workweek” under the FLSA is defined as a fixed, regularly recurring period of 168 hours that is, seven consecutive 24-hour periods. It does not have to begin on Monday or align with a calendar week. Employers can set any day as the start of the workweek, but once established, the workweek cannot be changed to avoid overtime obligations. Each workweek stands alone: employers cannot average hours across two or more weeks to avoid paying overtime.
It is also worth noting what federal law does not require. The FLSA does not mandate overtime pay for hours worked on weekends, holidays, or nights unless those hours push the employee over the 40-hour weekly threshold. Double time, shift differentials, and holiday bonuses are matters of contract or company policy, not federal overtime law. Some states impose additional requirements, but the federal baseline is firmly grounded in the weekly hour count alone.
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Who Qualifies for Overtim and Who Doesn’t?
Not every worker is entitled to FLSA overtime protections. The law divides employees into two broad categories: non-exempt and exempt. Non-exempt employees are entitled to overtime pay when they exceed 40 hours in a workweek. Exempt employees are not regardless of how many hours they work.
The most common exemptions are the so-called “white-collar” exemptions executive, administrative, professional, outside sales, and computer employee exemptions. To qualify for any of these exemptions, an employee must generally meet two conditions: they must be paid on a salary basis of at least a specified weekly threshold, and their job duties must meet specific qualifications under the regulations. Both requirements must be satisfied simultaneously. Paying someone a salary alone does not automatically make them exempt.
Common FLSA Overtime Exemptions at a Glance
- Executive Exemption: Employee manages the enterprise or a department, directs two or more employees, and has genuine authority over hiring and firing decisions.
- Administrative Exemption: Employee performs non-manual work directly related to management or general business operations and exercises discretion and independent judgment on significant matters.
- Professional Exemption: Employee’s primary duty requires advanced knowledge in a field of science or learning, or involves work that is predominantly intellectual or creative in nature.
- Computer Employee Exemption: Applies to systems analysts, programmers, software engineers, and similar roles — but only if they meet the salary threshold or are paid at least $27.63 per hour.
- Outside Sales Exemption: Employee’s primary duty is making sales or obtaining orders away from the employer’s place of business. No salary threshold applies to this exemption.
- Highly Compensated Employee (HCE) Exemption: Employees earning above a higher annual threshold who perform at least one duty of an exempt executive, administrative, or professional employee.
The salary threshold for the standard white-collar exemptions has been a moving target in recent years, which we cover in detail later in this article. What matters here is a critical takeaway that many workers and even some employers miss: the job title is irrelevant. Calling someone a “manager” or a “coordinator” does not make them exempt. What matters is what they actually do on a day-to-day basis and whether they meet the salary requirement. Misclassification intentional or not is one of the most common sources of overtime violations in the American workplace.
State Overtime Laws vs. Federal Law: Which Applies?
The FLSA sets a federal floor for overtime protections, but individual states are free to pass laws that are more generous to workers. When state and federal overtime laws conflict, the rule that is more beneficial to the employee governs. This means that in many states, workers have stronger overtime protections than federal law alone would provide.
California is the most prominent example: California law requires overtime pay for any hours worked beyond eight hours in a single workday not merely for hours over 40 in a week. An employee in California who works ten-hour days four days a week would be entitled to overtime pay for two hours each day under state law, even if they never hit the 40-hour federal threshold. Alaska, Nevada, and several other states have similar daily overtime requirements.
Some states also have higher salary thresholds for white-collar exemptions than the federal minimum, meaning that employees earning between the federal threshold and the state threshold are non-exempt under state law and entitled to overtime even if they would be exempt under federal rules. Workers in states with stronger protections should evaluate their situation under both frameworks they are entitled to the better of the two.
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FLSA Overtime Rules: What’s Changed in Recent Years
The salary threshold for white-collar overtime exemptions has been at the centre of intense regulatory activity since 2019, and the landscape as of 2026 reflects the outcome of that turbulence. Understanding which threshold currently applies is not straightforward.
The Obama administration issued a rule in 2016 that would have more than doubled the salary threshold from $455 per week to $913 per week. That rule was blocked by a federal court before it took effect. The Trump administration subsequently issued a new rule effective January 1, 2020, raising the threshold more modestly to $684 per week ($35,568 annually) the figure that governed for years and remains a familiar benchmark.
The Biden administration issued a new rule in 2024 that would have raised the threshold to $844 per week effective July 2024, with a further increase to $1,128 per week scheduled for January 2025. However, a federal district court in Texas vacated the entire 2024 rule in November 2024, including the July 2024 increase that had already taken effect. Courts are still processing challenges to this ruling, but as of early 2026, the operative federal salary threshold for most employers has reverted to $684 per week under the 2020 rule though employers and their counsel should verify current status, as litigation in this area remains active.
The highly compensated employee (HCE) exemption threshold was also affected by these regulatory shifts. Workers and employers alike should treat the salary threshold question as unsettled and monitor developments carefully, as additional rulemaking or court decisions could alter the applicable figures during the course of the year.
“Knowing whether you’re owed overtime is not just about how many hours you worked it’s about understanding the full formula, including every dollar your employer paid you that week and whether your exemption status has been correctly applied.”
Authority Sources & Further Reading
- U.S. Department of Labor Wage and Hour Division: Overtime Pay — The official federal resource covering overtime requirements under the FLSA, including current salary thresholds and exemption criteria.
- Fair Labor Standards Act (FLSA) DOL Overview — Comprehensive overview of FLSA requirements, including overtime, minimum wage, recordkeeping, and child labour standards.
- 29 CFR Part 778 Overtime Compensation (eCFR) — The full regulatory text governing how overtime pay must be calculated under federal law, including the rules on the regular rate of pay.
- DOL Fact Sheet #23 Overtime Pay Requirements of the FLSA — A concise, authoritative summary of overtime requirements and common compliance guidance from the Department of Labor.
- Fair Labor Standards Act of 1938 Original Legislation (Congress.gov) — The original statutory text of the FLSA as enacted by Congress, establishing the legal foundation for overtime pay in the United States.
- SHRM Calculating Overtime Pay Toolkit — Practical compliance guidance for HR professionals on calculating overtime correctly under FLSA, including common scenarios and pitfalls.