Health insurance for part-time employees

The 30-hour rule, plainly

Under the Affordable Care Act, a full-time employee is anyone averaging 30 hours a week or 130 hours a month. That number — not 40 — is the line that triggers an employer's obligation. Anything below it is part-time in the eyes of the law, and coverage becomes optional for the employer.

Plenty of employers set a friendlier internal threshold. Retail, hospitality, and healthcare employers often extend benefits at 20 or 25 hours to reduce turnover. Your employee handbook, not the federal rule, is the document that decides your case.

When an employer must offer coverage

• 50+ full-time-equivalent employees: the employer must offer affordable, minimum-value coverage to employees averaging 30+ hours, or face a penalty. Part-time staff are not covered by that mandate.
• Under 50 employees: no requirement at all. Small employers who do offer a plan can choose to include part-time staff, and many use an ICHRA to give part-time workers a tax-free allowance instead of a group plan.

If you're offered an ICHRA allowance, you buy your own individual plan and get reimbursed tax-free — which is often better for a part-time worker than being left out entirely.

Your options without an employer plan

1. ACA marketplace with a subsidy — the default answer. Part-time wages frequently put you in the range where the premium tax credit covers most of the premium.
2. Medicaid — in expansion states, adults under 138% of the federal poverty level qualify at no cost. The marketplace application screens for this automatically.
3. A parent's plan — if you're under 26, you can stay on it regardless of whether you live at home, are married, or are working. See what happens at 26.
4. A spouse's employer plan — usually the cheapest option when it's available, since the employer subsidizes most of the premium.
5. A student health plan — if you're enrolled in college, campus plans are often competitively priced.

Cost comparison for a part-time worker

Silver plans matter here: below 250% of the federal poverty level, silver plans add cost-sharing reductions that cut your deductible and copays. A subsidized silver plan often beats a bronze plan even when bronze looks cheaper on premium alone.

If your employer's offer is unaffordable

An offer of employer coverage normally blocks you from a marketplace subsidy — but only if it's affordable and meets minimum value. If the cheapest self-only option costs more than the annual affordability percentage of your household income, you can turn it down and claim a subsidy instead.

The family glitch fix also matters: affordability is now tested for family coverage separately, so a spouse and children can qualify for marketplace subsidies even when the worker's own coverage is affordable.

Working two part-time jobs

Hours don't combine across employers. Two 20-hour jobs generally means neither employer owes you an offer, even though you're working 40 hours. Your combined income does count for subsidy purposes, so estimate total household income on the marketplace application and update it when a schedule changes.

Seasonal and variable-hour work

Large employers can measure hours over a look-back period of 3 to 12 months. If your average lands at 30+ hours, they must offer coverage through the following stability period even if your current weeks are light. If your hours fluctuate, ask HR which measurement period applies to you — you may already be eligible.

What to do next

1. Check your handbook for the employer's own hours threshold.
2. Ask HR whether an ICHRA or part-time plan option exists.
3. Run a marketplace subsidy estimate using your realistic annual income — including all jobs.
4. Compare the subsidized silver plan against any employer offer on total yearly cost, not premium alone.
5. Look up plan pricing for your state, since the same plan varies widely by county.

Not sure which side the math lands on? Get a free quote and we'll compare your employer offer against subsidized marketplace pricing side by side.