How Many Hours Can You Legally Work in a Week?

Quick Answer: Is There a Legal Limit on Weekly Work Hours?

No, not under federal law. The Fair Labor Standards Act (FLSA) does not cap the number of hours an adult employee (16 or older) can work in a week. The 40-hour threshold only determines when overtime pay kicks in at 1.5x your regular rate.

Real limits do exist elsewhere, though. Some states require daily overtime or mandate a day of rest each week. Trucking, aviation, and healthcare have hard caps on working hours. And for workers under 16, federal law strictly limits hours by day and week.

Starting in 2025, accurate hour tracking also saves you money: the new federal overtime tax deduction lets nonexempt workers deduct up to $12,500 of overtime premium pay from their taxable income. A time-tracking app helps you document every hour and claim every dollar.

The Short Answer: No Federal Cap on Weekly Hours

If you searched this question hoping for a simple number, you won't find one. Federal law does not set a maximum. The Fair Labor Standards Act, the main federal law governing wages and hours, does not limit the number of hours an employee aged 16 or older can work in a day or a week.

The number people associate with a work limit, 40 hours, is actually the overtime threshold. Cross it, and your employer owes you time-and-a-half. But there's no law that says you have to stop working at 40 hours, or 50, or 70.

What the 40-hour rule actually means

Under the FLSA, nonexempt employees must be paid at least 1.5 times their regular rate for every hour worked beyond 40 in a single workweek. That's it. The law doesn't say your employer can't schedule you for 60 hours. It says they have to pay overtime for the 20 hours above 40.

"Legal to work" and "legal to require without extra pay" are two different things, and the difference matters. Your employer can legally ask you to work a 55-hour week. What they can't do is pay you straight time for all 55 hours if you're nonexempt.

At-will employment and your schedule

Most U.S. workers are employed at-will, which means your employer sets the terms of your schedule. They can increase your hours, change your shifts, or mandate overtime. If you refuse, they can discipline or terminate you in most cases. The FLSA ensures you're paid fairly for the hours you work, but it doesn't give you the right to set your own schedule.

The average American works about 34.2 hours per week across all private nonfarm jobs, according to the Bureau of Labor Statistics. Full-time workers average closer to 38.7 to 42.9 hours depending on the measure. But averages hide a wide range. Millions of workers regularly put in 50, 60, or more hours per week.

The 40-Hour Week and Overtime Pay Rules

The real protection in federal law is overtime pay, not an hour cap. So the question that matters is: who qualifies for overtime, and how does it work?

FLSA overtime basics

Nonexempt employees earn at least 1.5x their regular rate of pay for every hour over 40 in a workweek. This is not optional and cannot be waived. Your employer cannot average hours across two weeks, offer comp time instead of pay (in the private sector), or cap your overtime hours retroactively to avoid paying.

Exempt vs. nonexempt: which one are you?

Whether you qualify for overtime depends on your classification. To be exempt from overtime, you must meet all three criteria:

• Salary basis: Paid a fixed salary, not hourly
• Salary threshold: Earn at least $684/week ($35,568/year) under the 2026 federal standard
• Duties test: Perform executive, administrative, professional, computer, or outside sales duties as defined by the DOL

Miss any one of the three and you're nonexempt, meaning overtime rules apply to you. Most hourly workers are nonexempt by default.

State salary thresholds that exceed federal

Several states set their own, higher salary thresholds for overtime exemption. For 2026:

• California: $1,352/week ($70,304/year), tied to 2x the state minimum wage
• Colorado: $1,111.23/week ($57,783.96/year)
• New York: $1,275/week in NYC, Nassau, Suffolk, and Westchester counties

If you earn $50,000 a year and work in California, you're nonexempt under state law, even though you clear the federal threshold. The higher standard always wins.

The new overtime tax deduction (2025-2028)

The One Big Beautiful Bill Act, signed July 4, 2025, created a federal income tax deduction for overtime pay. Nonexempt workers can deduct the premium portion of their overtime, the extra "half" in time-and-a-half, up to $12,500/year for single filers or $25,000 for married filing jointly. The deduction phases out at $150,000 (single) / $300,000 (joint) MAGI and applies through the 2028 tax year. Starting with your 2026 W-2, employers must report qualified overtime compensation in Box 12, code "TT."

Overtime tracking now serves two purposes: it protects your pay and lowers your tax bill. A time-tracking app creates the documentation you need for both.

States That Limit Your Weekly or Daily Hours

Federal law may not cap your hours, but several states add protections that create real limits on when and how long you can work.

Daily overtime states

Most states follow the federal model: overtime triggers only after 40 hours in a workweek. These states add daily overtime requirements:

• California: Time-and-a-half after 8 hours/day, double-time after 12 hours/day. Also double-time after 8 hours on the 7th consecutive workday.
• Alaska: Time-and-a-half after 8 hours/day
• Colorado: Time-and-a-half after 12 hours/day
• Nevada: Time-and-a-half after 8 hours/day if you earn less than 1.5x the state minimum wage

Daily overtime catches a lot of workers off guard. A California worker who puts in 10 hours on a Monday earns 2 hours of overtime pay that day, even if their weekly total never reaches 40.

Day-of-rest laws

Several states require employers to provide at least one day off per seven-day period:

• California (Labor Code 551-554): One day of rest per workweek. Employees can voluntarily choose to work all seven days, but employers cannot require it.
• Illinois: At least 24 consecutive hours off in every calendar week for most workers
• New York: One day of rest per calendar week for factory, mercantile, and hotel workers

These laws don't set an hour cap, but they do create a practical limit. If your employer is scheduling you seven days a week without a break, check whether your state has a day-of-rest law.

The key principle: whichever law is more protective wins

When state law is more generous to workers than federal law, the state law applies. You get the benefit of whichever rule provides greater protection. An employer in California cannot ignore daily overtime just because the FLSA only requires weekly overtime.

Industry-Specific Hour Limits

There's no general federal hour cap, but some industries have hard limits because fatigue in those jobs is a public safety problem.

Truck drivers (FMCSA regulations)

The Federal Motor Carrier Safety Administration sets strict limits:

• 11-hour driving limit within a 14-hour window after coming on duty
• 60 hours in 7 consecutive days, or 70 hours in 8 consecutive days
• Mandatory 30-minute break after 8 hours of driving
• At least 10 consecutive hours off duty between shifts

These aren't suggestions. Violations can result in fines, out-of-service orders, and suspension of commercial driving privileges.

Commercial pilots (FAA regulations)

The Federal Aviation Administration limits pilots to:

• 100 flight hours per calendar month
• 1,000 flight hours per 12-calendar-month period
• Minimum rest periods between duty periods, varying by the time zone and start time of the flight

Healthcare workers and nurses

Eighteen states restrict or prohibit mandatory overtime for nurses and healthcare workers: Alaska, California, Connecticut, Illinois, Maine, Maryland, Massachusetts, Minnesota, Missouri, New Hampshire, New Jersey, New York, Oregon, Pennsylvania, Rhode Island, Texas, Washington, and West Virginia.

The details differ state to state. Massachusetts caps nursing shifts at 12 consecutive hours. Some states ban mandatory overtime for nurses outright; others allow it only during declared emergencies. If you're a healthcare worker, check your state's specific statute.

Minors: the strictest federal limits

The FLSA's only true hour caps apply to workers under 16 in non-agricultural jobs:

• School days: Max 3 hours/day, 18 hours/week
• Non-school days: Max 8 hours/day, 40 hours/week
• Work hours: Between 7 a.m. and 7 p.m. (extended to 9 p.m. June 1 through Labor Day)

For 16- and 17-year-olds, federal law sets no hour limit, but many states impose their own restrictions. Check your state's child labor laws for the full picture.

Can Your Employer Force You to Work More Hours?

In most cases, yes. If this is the question that brought you here, the answer is probably not what you hoped for. Under federal law, your employer can generally require you to work as many hours as they want, as long as they pay overtime for hours over 40.

When you can legally refuse

There are exceptions. You may have grounds to say no if:

• Safety concerns (OSHA): If excessive hours create a genuine safety hazard, such as operating heavy machinery after a 16-hour shift, you may refuse under OSHA's General Duty Clause.
• Disability accommodations (ADA): If a disability makes extended hours medically unsafe, a schedule limitation may be a reasonable accommodation under the Americans with Disabilities Act.
• Family and Medical Leave (FMLA): If you're on approved FMLA leave, including intermittent leave, your employer cannot force overtime during your protected time.
• Union contracts: Collective bargaining agreements often cap overtime hours, require voluntary sign-ups before mandatory assignments, or distribute overtime by seniority.
• Employment contracts: Written agreements that specify maximum hours or fixed schedules may be enforceable.

What happens if you refuse

Without one of the protections listed above, refusing mandatory overtime in an at-will employment state can result in disciplinary action or termination. That's the legal reality. However, your employer cannot retaliate against you for filing a wage complaint, reporting safety violations, or asserting your rights under the ADA or FMLA. If you're terminated after raising one of those issues, document everything and consult an employment attorney.

If you suspect unpaid overtime

If your employer isn't paying overtime for hours over 40, file a complaint with the Department of Labor's Wage and Hour Division at 1-866-487-9243 or online at dol.gov/agencies/whd/contact/complaints. You don't need a lawyer, and the process is confidential. Personal time-tracking records are your strongest evidence in any wage dispute.

The Health Cost of Working Too Many Hours

Just because there's no legal cap doesn't mean your body can handle it. Research increasingly links long work hours to serious health problems.

What the research says

A joint study by the World Health Organization (WHO) and the International Labour Organization (ILO) found that working 55 or more hours per week was associated with approximately 745,000 deaths from stroke and ischemic heart disease worldwide in 2016, a 29% increase since 2000. The WHO now classifies long working hours as a leading occupational health risk.

A separate meta-analysis of occupational health studies found an overall odds ratio of 1.245 between long working hours and adverse health outcomes. The risk is dose-dependent: it climbs steadily as weekly hours increase, with the strongest associations appearing above 60 hours per week. Burnout follows the same curve and gets noticeably worse past 60 hours.

Productivity declines too

More hours do not mean more output. Productivity per hour drops once the workweek stretches past 50 hours. By 55 hours, the output gains from the extra 15 hours are negligible. At 70+ hours, total output can actually fall below what a 55-hour week produces, because fatigue leads to errors, rework, and slower decision-making.

Why tracking matters for your health

Most people underestimate how much they work. The gap between what you think you're working and what you're actually working can be 5 to 10 hours per week. A time-tracking app gives you an honest picture. When you see your actual weekly totals over time, you can spot patterns, set boundaries, and bring actual numbers to your employer instead of just saying "it feels like too much."

Weekly Work Hours: What Different Scenarios Look Like

These examples show how federal and state hour rules affect real workers in different situations.

Frequently Asked Questions

Tips for Managing and Tracking Your Work Hours

• Track your actual hours, not your scheduled hours. Use a time-tracking app to record when you actually start and stop working. The gap between your schedule and your real hours is often where unpaid overtime hides.
• Know your state's rules, not just the federal ones. If you work in California, Alaska, Colorado, or Nevada, you're entitled to daily overtime that the federal law doesn't require. Check your state labor department's website for specifics.
• Compare your records to your pay stub every week. Don't wait until tax time. Catch discrepancies while the details are fresh, and bring your documented hours to your employer's attention immediately.
• Verify your W-2 Box 12 code TT at tax time. Starting with the 2026 tax year, your employer reports qualified overtime compensation in this box. Compare it against your own tracked overtime hours to make sure you're getting the full deduction.
• Document everything if your employer requires excessive hours. Save emails, texts, or verbal requests for overtime. If you ever need to file a complaint, these records, combined with your time-tracking data, are your strongest evidence.
• Watch your weekly totals for health warning signs. If you're consistently above 50 hours, productivity is dropping and health risks are climbing. Your time records give you the facts to push back on workload.

References

• U.S. Department of Labor: Work Hours — Federal overview of working hours, confirming no maximum hour limit for adult employees under the FLSA.
• U.S. Department of Labor: Overtime Pay — Official FLSA overtime pay requirements, exemption criteria, and enforcement information.
• FMCSA: Hours of Service Regulations — Federal truck driver hour limits, including the 11-hour driving rule and 60/70-hour weekly caps.
• IRS: Deduction for Qualified Overtime Compensation — Official IRS guidance on the overtime tax deduction, eligibility, limits, and W-2 reporting requirements.
• WHO/ILO: Long Working Hours and Health (PMC) — WHO/ILO systematic analysis linking 55+ hour workweeks to 745,000 deaths from stroke and ischemic heart disease worldwide in 2016.
• U.S. Department of Labor: Child Labor Provisions (Fact Sheet #43) — Federal hour restrictions for workers under 16, including daily and weekly maximums.