Commercial health insurance is private coverage provided by a health insurance company rather than a government program. It’s the most common type of health insurance in the United States, covering about 66% of the population. You get it through an employer, through a professional or trade organization, or by purchasing a plan directly on your own. In exchange for a monthly premium, the insurer agrees to pay for specific medical expenses.
How It Differs From Public Insurance
Health insurance in the U.S. falls into two broad categories: commercial (private) and public. Public programs like Medicare, Medicaid, CHIP, and Veterans Affairs coverage are funded by taxpayers and serve specific populations, mostly people over 65, those with low incomes, children, and veterans. Commercial insurance covers everyone else, and it’s where the majority of Americans get their coverage.
According to 2024 Census data, 53.8% of Americans had employment-based insurance, making it the single most common coverage type in the country. Another 10.7% purchased commercial coverage directly. By comparison, Medicare covered 19.1% and Medicaid covered 17.6%.
Where Commercial Coverage Comes From
Most people get commercial insurance one of two ways: through a job or by buying it themselves.
Employer-sponsored plans are group plans your company selects and partially pays for. Your employer typically covers a portion of the monthly premium and deducts the rest from your paycheck. These plans often have lower premiums than what you’d pay on your own because the risk is spread across a large group of employees. In 2026, a job-based plan is considered “affordable” under federal rules if your share of the monthly premium for the cheapest option is less than 9.96% of your household income.
Individual market plans are policies you buy yourself, either through the federal or state Health Insurance Marketplace (sometimes called the “exchange”) or directly from an insurer. If you buy through the Marketplace, you may qualify for a premium tax credit that lowers your monthly cost. However, if your employer offers coverage that meets the affordability standard, you generally won’t qualify for those savings, even if you’d prefer a Marketplace plan.
What Commercial Plans Must Cover
Under the Affordable Care Act, all commercial plans sold on the individual and small-group markets must cover 10 categories of essential health benefits. These include doctor visits, inpatient and outpatient hospital care, prescription drugs, pregnancy and childbirth, mental health services, rehabilitative services, lab tests, preventive care, pediatric services, and emergency care. Some plans go beyond these minimums, but none can offer less.
Large employer plans aren’t technically required to cover all 10 categories, but in practice most do because they need to meet other federal standards and remain competitive in attracting employees.
Types of Commercial Plans
Commercial insurance comes in several plan structures, each with different rules about which doctors you can see and how much flexibility you have.
- HMO (Health Maintenance Organization): You choose a primary care doctor who coordinates your care and refers you to specialists. You must stay within the plan’s network except in emergencies. HMOs are geographically restricted, so availability depends on your home or work ZIP code. Premiums tend to be lower, but you have the least flexibility.
- PPO (Preferred Provider Organization): You can see specialists without a referral and use both in-network and out-of-network providers. In-network care costs less, but you still get partial coverage if you go outside the network. PPOs typically have higher premiums in exchange for that flexibility.
- EPO (Exclusive Provider Organization): Similar to a PPO in that you don’t need referrals to see specialists, but like an HMO, you must stay in-network. If you see an out-of-network provider (outside of an emergency), you pay the full cost yourself. EPOs often offer broad networks to offset this restriction.
- POS (Point of Service): A hybrid of HMO and PPO features. You typically have a primary care doctor and need referrals for specialists, but you can go out of network at a higher cost.
How You Pay: Premiums, Deductibles, and More
Commercial insurance involves several layers of cost sharing between you and your insurer. Understanding how these pieces fit together helps you predict what you’ll actually spend in a given year.
Your premium is the monthly amount you pay just to have coverage, whether or not you use any medical services. In 2025, the average annual premium is $9,325 for an individual plan and $26,993 for a family plan. For employer-sponsored coverage, your employer pays a significant share of that total, so the amount coming out of your paycheck is lower.
Your deductible is the amount you pay out of your own pocket before insurance starts covering costs. Among workers with a deductible in 2025, the average for single coverage is $1,886. Until you hit that number, you’re paying for most non-preventive care yourself.
Once you’ve met your deductible, cost sharing kicks in through copays or coinsurance. A copay is a flat fee for a specific service, like $30 for a doctor visit. Coinsurance is a percentage split. The most common arrangements are 80/20 or 90/10, meaning the insurer pays 80% or 90% of the bill and you cover the rest.
Your out-of-pocket maximum is the ceiling on what you’ll spend in a plan year. Once your deductible, copays, and coinsurance add up to this limit, your insurer covers 100% of covered services for the rest of the year. This is the number that protects you from catastrophic medical bills.
How Provider Networks Affect Your Costs
Every commercial plan negotiates rates with a specific group of doctors, hospitals, and labs. These providers agree to accept discounted rates from the insurer, and in return, the insurer steers patients their way. This group is the plan’s “network.”
When you see an in-network provider, you pay the negotiated rate, and your copays and coinsurance count toward your deductible and out-of-pocket maximum. When you see an out-of-network provider, the picture changes significantly. The provider hasn’t agreed to discounted rates, so you may owe the full charge. In many plan types, out-of-network costs don’t count toward your deductible or out-of-pocket maximum at all, which means those expenses won’t bring you any closer to the point where your insurer picks up the full tab.
This is why checking whether a doctor or facility is in your plan’s network before scheduling care can save you hundreds or thousands of dollars.
When You Can Enroll
You can’t sign up for commercial insurance whenever you want. Employer plans typically have an annual enrollment window, often in the fall. For Marketplace plans, Open Enrollment runs from November 1 through January 15. If you enroll or make changes by December 15, your coverage starts January 1. If you enroll between December 16 and January 15, coverage begins February 1.
Outside of these windows, you can only enroll or switch plans if you experience a qualifying life event. These include losing other health coverage, getting married, having a baby, or moving to a new area. A qualifying event triggers a Special Enrollment Period that gives you a limited window, typically 60 days, to sign up for new coverage.