Under federal law, an intern’s eligibility for benefits turns on two questions: are you legally an employee, and how many hours do you work? Paid interns who qualify as employees and hit the relevant hour thresholds are entitled to the same core protections as other workers, including health coverage under the Affordable Care Act, access to employer retirement plans, anti-discrimination protection, and COBRA continuation coverage. Unpaid interns fall outside most of those protections, though a few narrow federal rules still reach them.
Are You an Employee in the First Place?
Everything else flows from this question. The Department of Labor uses a seven-factor “primary beneficiary test” to decide whether an intern is actually an employee under the Fair Labor Standards Act.1U.S. Department of Labor. Fact Sheet 71: Internship Programs Under The Fair Labor Standards Act The test asks who gets more out of the arrangement. If the employer does, the intern is an employee no matter what the offer letter says.
The seven factors include whether the intern understands there is no expectation of pay, whether the training resembles what a school would provide, whether the internship lasts only as long as the learning does, and whether the intern’s work adds to or replaces the work of paid staff.1U.S. Department of Labor. Fact Sheet 71: Internship Programs Under The Fair Labor Standards Act No single factor decides the outcome. Courts weigh all seven together and look at the economic reality of the relationship.
An intern who is actually an employee under this test is entitled to minimum wage and overtime, and generally opens the door to the same benefit packages other workers receive.
Health Insurance Under the ACA
Employers with 50 or more full-time equivalent employees must offer health coverage to their full-time workers or pay a penalty.2Internal Revenue Service. Affordable Care Act Tax Provisions for Large Employers “Full-time” for ACA purposes means averaging at least 30 hours of service per week, or 130 hours per month.3Internal Revenue Service. Identifying Full-Time Employees Job titles don’t matter here. A paid intern who hits that threshold triggers the same coverage obligation as any other employee.
How Hours Get Counted
Because intern schedules often fluctuate, the IRS lets employers choose between two measurement approaches. Under the monthly measurement method, the employer looks at each calendar month for the 130-hour mark. Under the look-back measurement method, the employer tracks hours over a longer initial period and uses that data to set coverage during a later “stability period.”3Internal Revenue Service. Identifying Full-Time Employees The look-back method matters most for interns, because it lets employers watch new hires with unpredictable schedules before deciding whether to offer coverage.
The Seasonal Wrinkle
Interns hired into positions that customarily last six months or less can be treated as seasonal employees under the ACA. When someone genuinely fits that definition, the employer isn’t required to offer them coverage during that stint. That’s separate from the “seasonal worker” rule, which asks a different question altogether: whether the employer itself counts as a large employer. Under that rule, an employer whose workforce exceeds 50 full-time employees for 120 days or fewer in a year is not treated as a large employer, provided the excess workers are seasonal.4Internal Revenue Service. Determining if an Employer is an Applicable Large Employer – Section: Seasonal Workers The two concepts get confused often. One asks whether the employer owes coverage to anyone at all; the other asks whether a specific intern is entitled to coverage.
Retirement Plan Access
Paid interns can qualify for their employer’s retirement plan, but the hours bar is high. Under ERISA, an employer may require up to 1,000 hours of service within a 12-month period before an employee becomes eligible to participate.5U.S. Department of Labor. FAQs About Retirement Plans and ERISA A typical 12-week summer internship at 40 hours per week works out to about 480 hours, well short of the threshold. Most short-term interns never reach it.
The SECURE 2.0 Act opened a second path, fully in effect in 2025. Employees who work at least 500 hours in each of two consecutive 12-month periods must be allowed into their employer’s 401(k) plan.6Internal Revenue Service. Notice 2024-73: Additional Guidance With Respect to Long-Term, Part-Time Employees This matters if you return to the same employer for consecutive summers, or if you roll from an internship into part-time work during the school year. An intern who logged 500 hours in both 2024 and 2025 became eligible to participate starting January 1, 2026.
If you’re unpaid, retirement plan participation is off the table. Without wages, there is no compensation base for 401(k) contributions or employer matches.7Internal Revenue Service. Publication 15 (2026), (Circular E), Employers Tax Guide Stipends, which are typically meant to offset expenses rather than pay for work, generally don’t count as earned income for retirement plan purposes.
Anti-Discrimination Protections
Paid interns who qualify as employees are covered by the full range of federal workplace anti-discrimination laws, including Title VII of the Civil Rights Act, the Americans with Disabilities Act, and the Age Discrimination in Employment Act.
For unpaid interns, the picture is thinner. Under EEOC guidance, an unpaid intern may qualify for federal anti-discrimination protection if they receive “significant remuneration” in some form, such as group insurance, workers’ compensation, or access to professional certifications. Benefits provided by a third party as a consequence of the internship, like university-provided insurance, can count.8U.S. Equal Employment Opportunity Commission. EEOC Informal Discussion Letter Academic credit, practical experience, and research opportunities on their own have not been considered significant enough to establish employee status. Courts have consistently treated those as routine incidents of an unpaid educational arrangement rather than compensation.
There is one important federal backstop. Title VII separately prohibits discrimination in training and apprenticeship programs regardless of whether the participant is an employee.8U.S. Equal Employment Opportunity Commission. EEOC Informal Discussion Letter An intern denied admission to or expelled from such a program based on race, sex, religion, or another protected characteristic has a federal claim even without employee status.
COBRA After the Internship Ends
If you were enrolled in your employer’s group health plan during your internship, you have the right to continue that coverage after the position ends, as long as the employer has at least 20 employees.9U.S. Department of Labor. FAQs on COBRA Continuation Health Coverage for Employers and Advisors COBRA treats the end of an internship like any other termination: it’s a qualifying event that triggers continuation rights.10U.S. Department of Labor. FAQs on COBRA Continuation Health Coverage for Workers
The catch is the price. During the internship, the employer likely paid a large share of the premium. Under COBRA, you pay the full premium plus a 2% administrative fee. For young, healthy interns with other options, such as a parent’s plan (available until age 26 under the ACA) or a university plan, COBRA often isn’t the cheapest route. If you have ongoing medical needs or dependents on the plan, the cost may still be worth avoiding a gap. The employer has to notify you of your COBRA rights within a set window after the qualifying event, and you then have 60 days to decide.
If You’re an Unpaid Intern
Federal law offers unpaid interns very little in the way of benefits. Because you’re not on payroll:
- You have no basis for ACA health coverage eligibility.
- You can’t participate in the employer’s retirement plan; there are no wages to contribute.
- You don’t build unemployment insurance eligibility, since those taxes are paid on wages.7Internal Revenue Service. Publication 15 (2026), (Circular E), Employers Tax Guide
- You aren’t in a group health plan to continue under COBRA.
- Your federal anti-discrimination protection is limited to the “significant remuneration” pathway and the Title VII training-program rule described above.
If you’re doing the same work as paid staff, take direction from the employer on schedule and tasks, and the employer is getting the bigger benefit from the arrangement, the primary beneficiary test may treat you as an employee anyway, whatever the label. That reclassification is often where meaningful benefit eligibility begins.
Where State Law Fills the Gaps
Federal law is the floor, not the ceiling, and state law frequently reaches further. Two areas come up most often for interns.
Workers’ compensation is entirely state-governed; there is no federal baseline. Many states require employers to carry coverage that includes interns injured on the job, and some extend the requirement to unpaid interns whose tasks provide a direct benefit to the employer. Rules range from mandatory coverage of all workers regardless of pay to complete exclusion of unpaid positions.
A growing number of states also mandate paid sick leave that applies to temporary and part-time workers, including interns. The most common accrual rate is one hour of sick leave earned for every 30 hours worked, used in roughly 15 states. Others use different formulas, such as one hour per 35 or 40 hours worked. These laws generally apply regardless of full-time, part-time, or temporary status, so an intern working even a few hours a week begins accruing from day one.
If you’re weighing an internship offer, the two questions that decide most of your federal benefit picture are whether you’ll be paid and how many hours you’ll actually work. Get clarity on both before you sign, and check your state’s rules for anything federal law leaves out.