Healthcare in United States
Who is covered, from what date, and what insurance you need
The United States has no universal public health system. Most working-age residents are covered through an employer, others buy individual cover through the marketplace established by the Affordable Care Act, and public programmes cover principally older people and those on low incomes. Cover is expensive, and the consequences of a gap in it are severe.
| Individual cover | Health Insurance Marketplace, with annual open enrolment source |
| Employer cover | The main source of cover for working-age adults source |
| Public programmes | Medicare for those over 65 and some disabled people; Medicaid on income grounds source |
| Immigrant eligibility | Rules on marketplace and Medicaid eligibility depend on immigration status source |
| Cost sharing | Premiums, deductibles, co-payments and out-of-pocket maximums apply |
How people actually get covered
Employer-sponsored insurance is the backbone of the system. The employer pays a share of the premium and the employee pays the rest through payroll, with the plan's deductible, network, and out-of-pocket maximum determining what is actually paid when care is used. Because cover is tied to the job, changing or losing employment interrupts it, and continuation cover is generally available at full cost for a limited period.
Those without an employer plan can buy cover on the marketplace during the annual open enrolment window, or after a qualifying life event such as arriving in the country or losing job-based cover. Income-based subsidies reduce premiums for many households.
Eligibility for marketplace cover and for Medicaid depends on immigration status, and the rules differ between the two. The official healthcare.gov guidance for immigrants is the authoritative starting point rather than general summaries.
The vocabulary that decides your bill
- Premium — the monthly cost of holding the plan, paid whether or not care is used.
- Deductible — the amount paid out of pocket each year before the plan begins to pay for most services.
- Co-payment and co-insurance — the fixed sum or percentage still paid after the deductible is met.
- Out-of-pocket maximum — the annual ceiling on the insured person's own spending for covered, in-network care.
- Network — the providers with whom the plan has agreed prices. Care outside it is commonly far more expensive or not covered at all.
Newly arrived and temporary residents
Students in F-1 status are frequently required by their institution to hold a specific insurance plan, and exchange visitors in J status are subject to published minimum insurance requirements. Employer-sponsored workers usually join the company plan, but there may be a waiting period after starting, during which a short-term policy is worth having.
Emergency treatment is provided regardless of insurance, but it is billed, and uninsured emergency admissions are a well-documented source of very large debts. Travelling or moving without cover in place is the single most expensive mistake in this area.
Dental and vision
Dental and vision care are generally separate from medical insurance and are bought as additional plans or paid privately. Prescription drug coverage is normally part of a medical plan but with its own tiered cost sharing, and prices vary between pharmacies for the same medicine.
Free: the United States visa checklist
A one-page PDF listing every document each route asks for, so you can see what you are missing before you spend anything. No spam, unsubscribe in one click.
The list is not open yet, so nothing was sent and your address was not stored. The guides on this site are free and need no sign-up.
We email a short course on how the United States routes work, then the report offer. Your address is never sold.
Official sources
Checked against these pages in September 2026. Fees and processing times change without notice — confirm before you act.