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Labor Law & Payroll

FLSA Overtime Rules & Pay Calculations

HR & Payroll Review Board Updated August 12, 2026 10 Min Read

The Fair Labor Standards Act (FLSA) is the primary federal law governing minimum wage, overtime eligibility, recordkeeping, and child labor standards in the United States. For hourly workers and business owners alike, understanding how to calculate overtime pay correctly under the FLSA is vital to prevent payroll errors and wage disputes. In this comprehensive guide, we explain the legal foundation of FLSA overtime regulations, show you how to calculate time-and-a-half and double-time rates, and clarify who is eligible under exempt vs. non-exempt rules.

1. What is FLSA Overtime? (The 40-Hour Rule)

Under federal law, covered non-exempt employees must receive overtime pay for all hours worked over **40 hours in a single workweek**.

The FLSA defines a "workweek" as a fixed, regularly recurring period of 168 hours (seven consecutive 24-hour periods). It does not need to align with a calendar week.

Crucial Workweek Rules

  • No Averages: Each workweek stands alone. You cannot average hours worked over two bi-weekly pay periods. If an employee works 50 hours in week one and 30 hours in week two, they are owed 10 hours of overtime in week one, even though the bi-weekly total is 80 hours.
  • Actual Hours Worked: Overtime is calculated on actual physical hours worked. Sick days, paid holidays, and vacation hours do not count toward the 40-hour overtime threshold.

2. How to Calculate Overtime Pay Rates

The FLSA requires that overtime hours be compensated at a rate not less than **time-and-a-half** (1.5 times) the employee's "regular rate of pay."

The regular rate of pay is not just the base hourly wage. It includes non-discretionary bonuses, commissions, and shift differentials earned during that workweek.

  • Time-and-a-Half:
    Overtime Rate = Base Hourly Rate * 1.5
  • Double-Time (Not Required by FLSA, but standard in some union/state contracts):
    Double-Time Rate = Base Hourly Rate * 2.0

3. Exempt vs. Non-Exempt Employees

Not all workers are eligible for overtime. The FLSA divides employees into two primary groups:

Classification Salary & Duties Tests Overtime Eligibility
Non-Exempt Earn hourly wages or fall below the salary threshold ($684/week). Entitled to 1.5x pay for all hours worked over 40.
Exempt (Executive, Professional, Admin) Paid a salary of at least $684/week AND perform professional managerial duties. Exempt from overtime rules (no overtime pay regardless of hours worked).

4. State-Specific Rules (California Daily Overtime)

Some states enforce labor rules that are stricter than the federal FLSA. Where state and federal laws conflict, **the rule most favorable to the employee must be followed**.

For example, **California** enforces daily overtime rules:

  • Daily 1.5x: Overtime is paid for hours worked over **8 hours in a single workday**.
  • Daily 2.0x (Double Time): Overtime is paid at 2.0x for hours worked over **12 hours in a single workday**.
  • 7th Consecutive Day: Overtime is paid at 1.5x for the first 8 hours on the 7th consecutive day of work in a workweek, and 2.0x for hours beyond 8.

5. Automating Time Card Calculations

Don't waste time on manual time sheet arithmetic. Use our free time card calculator on the home page. Enter daily check-in/check-out values, set regular daily thresholds (e.g. 8 hours or 40 hours weekly), log lunch breaks, and estimate your overtime pay rates instantly with precise HR-standard decimal conversions.