Overtime Pay Calculator: FLSA Rules, 1.5x Rate & State Law Differences

What Is the FLSA Overtime Rule?

The Fair Labor Standards Act (FLSA), enacted in 1938, is the federal law that governs minimum wage, overtime pay, recordkeeping, and child labor standards for most private and public employers in the United States. Its overtime provision is straightforward: non-exempt employees must be paid at least 1.5 times their regular rate of pay for every hour worked over 40 in a single workweek.

A “workweek” under the FLSA is any fixed, regularly recurring 168-hour period (7 consecutive 24-hour days). Each workweek stands alone — you cannot average hours across two weeks to avoid the overtime threshold.

Key FLSA Statistics

• The FLSA covers approximately 143 million workers across the United States (U.S. Department of Labor, 2024).
• The current federal salary threshold for overtime exemption is $684 per week ($35,568 annually), updated by the DOL in 2020.
• According to the Bureau of Labor Statistics, about 15% of full-time wage and salary workers receive overtime pay in a typical week (BLS, 2023).
• The DOL's Wage and Hour Division recovered over $274 million in back wages for more than 163,000 workers in fiscal year 2023 (DOL WHD Annual Report, 2023).
• Misclassification of employees as exempt or as independent contractors costs workers an estimated $3,300 to $5,000 per year in lost overtime wages (Economic Policy Institute, 2023).

How to Calculate Overtime Pay

Formula 1: Hourly Non-Exempt Employee

For hourly workers, the calculation is direct:

Overtime Pay = Hourly Rate × 1.5 × Overtime Hours

Example: You earn $18/hour and work 47 hours in a week.
Regular pay: $18 × 40 = $720
Overtime pay: $18 × 1.5 × 7 = $189
Total weekly pay: $720 + $189 = $909

Formula 2: Salaried Non-Exempt Employee

Salaried employees below the exemption threshold must also receive overtime. First, calculate the effective hourly rate:

Regular Rate = Weekly Salary ÷ Hours Worked
Overtime Pay = Regular Rate × 1.5 × Overtime Hours

Example: You earn $750/week and work 48 hours.
Regular rate: $750 ÷ 40 = $18.75/hour
Overtime premium: $18.75 × 0.5 × 8 = $75 (the “half-time” premium, since salary already covers straight time)
Total weekly pay: $750 + $75 = $825

Note: Some employers use the “fluctuating workweek” method, which yields a lower overtime rate when hours vary week to week. The FLSA permits this under specific conditions.

Exempt vs. Non-Exempt Status: The Two-Part Test

Whether an employee is exempt from overtime depends on two factors — both must be satisfied. Paying someone a high salary does not automatically exempt them if their job duties don't qualify.

Job title is irrelevant. A “manager” who spends most of their day doing non-supervisory work is likely non-exempt. The DOL looks at actual duties performed, not what the employee is called.

5 Jobs That Are Automatically Exempt from Overtime

Beyond the white-collar exemptions above, the FLSA carves out specific categories that receive no overtime protections regardless of salary:

1. Agricultural workers employed on small farms or in certain seasonal harvesting roles
2. Commissioned salespeople in retail establishments where overtime pay exceeds one-and-a-half times minimum wage and commissions exceed half their total earnings
3. Certain transportation workers regulated by the Motor Carrier Act (truck drivers, for example, are governed by DOT hours-of-service rules instead)
4. Domestic service workers who live in the household of the employer
5. Seamen working on vessels other than American vessels

State Overtime Laws: Where Workers Get More Protection

The FLSA sets a federal floor — states can and do enact stronger overtime protections. When state law is more generous, it applies instead of federal law.

California: The Most Protective State

California Labor Code §510 requires overtime based on daily and weekly hours:

Other States with Notable Protections

• Alaska: Daily overtime after 8 hours and weekly overtime after 40 hours, mirroring California's daily rule.
• Nevada: Daily overtime after 8 hours for employees earning under 1.5x the state minimum wage; otherwise weekly-only like the FLSA.
• Colorado: Overtime required after 12 hours in a workday in addition to the 40-hour weekly rule, under the Colorado COMPS Order.
• Puerto Rico: Overtime at 1.5x after 8 hours in a day, with additional rules for rest days.

Most other states simply follow federal FLSA rules. If you're unsure which law applies to you, your state's department of labor website is the authoritative source.

4 Signs Your Employer May Be Misclassifying You

Misclassification — labeling non-exempt employees as exempt or as independent contractors — is one of the most common FLSA violations. Watch for these red flags:

1. Your title says “manager” but you rarely supervise anyone. Executive exemption requires actually directing the work of at least two employees as a primary duty, not as an occasional task.
2. You're salaried but earn less than $684/week. Below this threshold, no white-collar exemption applies — you must receive overtime regardless of duties.
3. You're classified as an independent contractor but follow a set schedule at the employer's location. The IRS and DOL both use multi-factor tests; behavioral and financial control matter more than what your contract says.
4. Your job duties changed but your classification didn't. An employee promoted to a supervisory title but still doing the same frontline work as before may still be non-exempt.

If you suspect misclassification, you can file a complaint with the DOL's Wage and Hour Division at no cost. The statute of limitations is generally two years (three years for willful violations).

How Overtime Affects Your Annual Take-Home Pay

Overtime income is ordinary income and is taxed at your marginal federal rate — no special rules apply. But frequent overtime has meaningful effects on your annual compensation:

Consistent overtime can meaningfully boost income, but it's worth modeling the after-tax take-home — especially if overtime pushes you into a higher marginal tax bracket. Our overtime pay calculator estimates both gross and approximate after-tax figures.

Frequently Asked Questions

How is overtime pay calculated under the FLSA?

Under the FLSA, overtime is paid at 1.5 times your regular rate of pay for all hours worked beyond 40 in a single workweek. If you earn $20/hour and work 45 hours, you receive $20 × 40 regular hours plus $30 × 5 overtime hours, totaling $950 for the week before taxes.

Who is exempt from overtime pay under federal law?

Employees are generally exempt from FLSA overtime if they earn at least $684 per week ($35,568 annually) and work in an executive, administrative, professional, computer, or outside sales capacity. Both the salary level and job duties tests must be met — salary alone is not enough to classify someone as exempt.

Does California have different overtime rules than federal law?

Yes. California requires daily overtime at 1.5x for hours beyond 8 in a workday, and double time (2x) for hours beyond 12 in a day or beyond 8 on the seventh consecutive day of a workweek. Federal FLSA only calculates overtime weekly, not daily, making California law significantly more protective.

How do you calculate overtime for a salaried non-exempt employee?

Divide the weekly salary by hours worked to get the regular rate, then multiply by 1.5 for overtime hours. For example: $800 weekly salary ÷ 40 hours = $20/hour regular rate. Five overtime hours = $20 × 1.5 × 5 = $150 overtime premium. Total pay for the week: $800 + $150 = $950.

Can my employer force me to work overtime?

In most U.S. states, yes — employers can require overtime as a condition of employment, and refusing can be grounds for discipline or termination. However, they must pay the legally required overtime rate. Some states have exceptions for certain industries or require advance notice. Check your state's labor laws for specifics.

Does overtime pay affect how much tax I owe?

Overtime income is taxed as ordinary income at your marginal federal and state rates — there is no special overtime tax. However, earning more in a single paycheck can temporarily push withholding higher if your employer uses the supplemental wage method. Your annual tax liability is determined by your total income for the year, not how it was earned.