Federal law sets the baseline for how many hours a working teen can put in: 14- and 15-year-olds are capped at 3 hours on a school day and 18 hours a week while school is in session, according to the U.S. Department of Labor. States can, and often do, set tighter limits on top of that floor.
How Many Hours Can a 14- or 15-Year-Old Legally Work?
Under the federal Fair Labor Standards Act, 14- and 15-year-olds may work no more than 3 hours on a school day, including Fridays, and no more than 18 hours total in a week when school is in session, the Department of Labor's fact sheet on non-agricultural child labor explains. On days school isn't in session, the cap rises to 8 hours a day and 40 hours a week.
Timing matters too. Work has to happen outside school hours and generally between 7 a.m. and 7 p.m. That evening cutoff moves to 9 p.m. from June 1 through Labor Day, which is the window that lets younger teens pick up more summer shifts.
What Changes Once a Teen Turns 16?
At 16, the federal hour caps disappear. Sixteen- and 17-year-olds can work unlimited hours in any job that isn't classified as hazardous, per the Department of Labor. What doesn't change is the ban on dangerous work: federal rules list 17 categories of hazardous occupations, covering things like operating power-driven woodworking or metal-forming machines, roofing, excavation, and driving as part of the job, that stay off-limits until age 18.
There are narrow carve-outs. Some of those hazardous-job categories allow 16- and 17-year-olds to train in the work if they're enrolled as apprentices or student-learners in an approved program, the same fact sheet notes. Outside those programs, the age-18 floor holds. That covers a wider range of everyday workplaces than families sometimes expect: a teen bussing tables or bagging groceries is fine, but the same teen operating a bakery's power mixer, a meat slicer covered by the meat-processing order, or a compactor in the back room crosses into territory the rules still reserve for adults, per the fact sheet.
Does a Family's State Set Different Rules Than Federal Law?
Often, yes. The Department of Labor's own comparison of state child labor standards, current as of July 2025, lays out the legal principle plainly: where a state's rule is looser than the federal one, federal law controls; where a state's rule is stricter, the state rule wins. In practice that means the hour caps above are a floor, not a ceiling.
The clearest state-by-state differences show up in nightwork curfews, which range from as early as 7 p.m. in some states to 10 p.m. or later in others, often with a later summer exception built in. Weekly and daily maximum-hour limits for minors also vary by state on top of the federal floor described above, the same comparison shows. The federal government also does not require minors to carry a work permit or working papers, but many states do, so that's a step families need to check locally rather than assume is settled at the federal level. A permit requirement, where it exists, is typically handled through the student's school or a local labor office, and it's worth confirming before a hiring manager asks for it on day one.
Why Are More Teens Working Right Now?
Youth employment climbs every summer as high schoolers and college students look for seasonal income, and this year's numbers moved further than usual. In July 2026, 53.8% of people ages 16 to 24 were employed, up slightly from 53.1% a year earlier, and the youth unemployment rate fell to 9.1% from 10.8%, according to the Bureau of Labor Statistics. The youth labor force grew by 2.1 million people between April and July 2026 as students entered the summer job market.
For families, that translates into more competition for entry-level openings and a job mix concentrated in a few sectors: leisure and hospitality accounted for a quarter of employed young workers (5.3 million), retail trade another 18%, and education and health services 14%, the bureau reported. Those are exactly the sectors where the federal hour and hazardous-job rules above apply most directly, since restaurants, hotels, and stores are also where 14- and 15-year-olds do most of their first jobs. The youth labor force participation rate itself held close to flat, at 59.1% in July 2026 versus 59.5% a year earlier, the bureau's release shows, meaning the employment gain came mostly from more of that pool finding work rather than more teens deciding to look for it.
What Should a Family Check Before a Teen Takes a Job?
Start with two calls, not one: the employer, and the state labor department, since state rules can tighten the federal hour caps and curfews described above. Ask directly whether the state requires a work permit, and get it filed before the first shift rather than after.
Next, ask what tasks the job actually involves, especially for 16- and 17-year-olds, since the hazardous-occupation list bans specific tasks, not entire job titles; a teen can be legally hired at a grocery store or restaurant and still be barred from operating certain machinery there. For a 14- or 15-year-old, it also helps to write down the actual proposed schedule and check it against the 3-hours-on-a-school-day, 18-hours-a-week limits described above before the first shift is set, rather than after a conflict with homework or practice shows up.
None of this requires a lawyer or a lengthy investigation. It's a short checklist, grounded in rules that already exist, and it's the difference between a summer job that fits around school and one that quietly breaks the law without anyone intending it to.
For a related youth perspective, read What Parents Should Know About the Rules on Teen Work Hours.
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