Health Insurance: Definition, How It Works (2024)

What Is Health Insurance?

Health insurance is a contract between a company and a consumer. The company agrees to pay all or some of the insured person's healthcare costs in return for payment of a monthly premium.

The contract is usually a one-year agreement, during which you are responsible for paying specific expenses related to illness, injury, pregnancy, or preventative care.

Key Takeaways

  • Health insurance pays most medical and surgical expenses and preventative care costs in return for monthly premiums.
  • Generally, the higher the monthly premium, the lower the out-of-pocket costs.
  • Insurance plans have deductibles and co-pays, but these out-of-pocket expenses are now capped by federal law.
  • Medicare, Medicaid, and the Children's Health Insurance Program (CHIP) are federal health insurance plans that extend coverage to older, disabled, and low-income people.

Health insurance agreements in the U.S. generally come with exceptions to coverage including:

  • A deductible that requires the consumer to pay certain healthcare costs "out-of-pocket" up to a maximum amount before the company coverage begins
  • One or more co-payments that require the consumer to pay a set share of the cost for specific services or procedures

How Health Insurance Works

In the United States, health insurance is tricky to navigate. It is a business with a number of regional and national competitors whose coverage, pricing, and availability vary from state to state and even by county.

About half of the U.S. population has health insurance coverage as an employment benefit, with premiums partially covered by the employer. The cost to the employer is tax-deductible to the payer, and the benefits to the employee are tax-free, with certain exceptions for S corporation employees.

Self-employed people, freelancers, and gig workers can buy insurance directly on their own. The Affordable Care Act of 2010, commonly called Obamacare, mandated the creation of a national database, HealthCare.gov, which allows individuals to search for standard plans from private insurers that are available where they live. The costs of the coverage are subsidized for taxpayers whose incomes are between 100% and 400% of the federal poverty threshold.

Some states created their own versions of HealthCare.gov that are tailored to their residents.

People over the age of 65 and those with disabilities, End-Stage Renal Disease, or ALS qualify to receive federally-subsidized care through Medicare, while families whose incomes are near the poverty level are eligible for subsidized Medicaid coverage.

Types of Health Insurance

Health insurance can be tricky to navigate. In the U.S., managed care insurance plans require policyholders to get their care from a network of designated healthcare providers. If patients seek care outside the network, they must pay a higher percentage of the cost. The insurer may even refuse payment outright for services obtained out of network.

Many managed care plans—for example, health maintenance organizations (HMOs) and point-of-service plans (POS)—require patients to choose a primary care physician who oversees the patient's care, makes recommendations about treatment, and provides referrals for medical specialists.

Preferred-provider organizations (PPOs), by contrast, don't require referrals but do set lower rates for using in-network practitioners and services.

Insurance companies may deny coverage for certain services that were obtained without preauthorization. They may refuse payment for name-brand drugs if a generic version or comparable medication is available at a lower cost. Check an insurance company's rules before your buy their insurance.

What Are Copays, Deductibles, and Coinsurance?

Most health insurance plans require their customers to pick up some of the costs of their coverage in various ways:

  • The deductible is the amount you pay out of pocket every year before the insurer begins to meet the costs. This is now capped by federal law.
  • Copays are set fees that subscribers must pay for specific services such as doctor visits and prescription drugs even after the deductible is met.
  • Coinsurance is the percentage of healthcare costs that the insured must pay even after they've met the deductible (but only until they reach the out-of-pocket maximum for the year).

Insurance plans with higher out-of-pocket costs generally have smaller monthly premiums. When shopping for plans, weigh the benefit of lower monthly payments against the potential risk of large out-of-pocket expenses in the case of a major illness or accident.

If you're self-employed, you may be able to deduct up to 100% of health insurance premiums you pay out of pocket.

High-Deductible Health Plans (HDHP)

One increasingly popular type of health insurance is the high-deductible health plan (HDHP). These plans have higher deductibles and lower monthly premiums. Their users are the only ones eligible to open a Health Savings Account (HSA) that has substantial federal tax benefits.

For 2024, a high-deductible health plan is one that has deductibles of at least $1,600 for an individual or $3,100 for a family. Total out-of-pocket maximums are $8,050 for an individual and $16,100 for a family.

High-deductible health plans offer a unique advantage in that if you have one, you're permitted to open—and contribute pretax income to—a health savings account, which can be used to pay for qualified medical expenses. These plans offer a triple tax benefit in that:

  • Contributions are tax-deductible
  • Contributions grow on a tax-deferred basis
  • Qualified withdrawals for healthcare expenses are tax-free

Note

You can withdraw money from an HSA after age 65 for any reason with no tax penalty, but you will pay income tax on the withdrawal if the money is not used for qualified medical expenses.

Federal Health Insurance Plans

Not all health insurance in the US is provided by private companies. Medicare, Medicaid, and the Children's Health Insurance Program (CHIP) are federal health insurance plans that extend coverage to older, disabled, and low-income people.

The Affordable Care Act (ACA)

In 2010, President Barack Obama signed the Affordable Care Act (ACA) into law. In participating states, the act expanded Medicaid, a government program that provides medical care for individuals with low incomes.

The Affordable Care Act has prohibited insurance companies from denying coverage to patients with preexisting conditions and has allowed children to remain on their parents' insurance plan until they reach the age of 26.

In addition to these changes, the ACA established the federal Health Insurance Marketplace. It also prohibits insurance companies from denying coverage to patients with preexisting conditions and allows children to remain on their parents' insurance plan until they reach age 26.

The Marketplace helps individuals and businesses shop for quality insurance plans at affordable rates. Insurance available through the ACA Marketplace is required to cover 10 essential health benefits.

Under the ACA, tax-payers were required to carry medical insurance that meets federally designated minimum standards or face a tax penalty, but the Tax Cuts and Job Act removed that penalty after December 31, 2018.

A Supreme Court ruling in 2012 struck down an ACA provision that required states to expand Medicaid eligibility as a condition for receiving federal Medicaid funding, and a number of states chose to refuse to expand their Medicaid programs.

As of 2023, an estimated 40 million people have health coverage through the Affordable Care Act.

Medicare and CHIP

Two public health insurance plans,Medicareand theChildren's Health Insurance Program (CHIP), provide subsidized coverage for disabled individuals and children. Medicare, which is available to people age 65 or older, also serves people with certain disabilities, End-Stage Renal Disease, and ALS. The CHIP plan provides health coverage for low-income children under the age of 19.

Important

Medicaid can help older seniors to pay for long-term care in a nursing home, but Medicare does not. This is why Medicare recipients often pay for supplemental coverage through a private insurer.

What Is Health Insurance and Why Do You Need It?

Health insurance is an agreement in which an insurance company agrees to pay for some or all of your medical expenses in exchange for a monthly premium payment. You need it to ensure you can pay for any medical bills while staying in good financial health.

Who Needs Health Insurance?

Everyone needs health insurance. Health insurance offsets the costs of minor medical issues and major ones, including surgeries and treatment for life-threatening ailments and debilitating conditions.

How Do You Get Health Insurance?

If your employer offers health insurance as part of an employee benefits package, you will be covered, although you will probably have to pay a portion of the costs. If you are self-employed, you can purchase health insurance through a federal or state Health Insurance Marketplace. People over the age of 65 qualify for federal Medicare insurance, although many of them supplement its coverage. Low-income individuals and families qualify for subsidized coverage through the federal Medicaid or Medicare programs.

How Much Does Health Insurance Cost?

The cost of health insurance varies widely based on the scope of coverage, the type of plan you have, the deductible, and your age when you sign up. Copays and coinsurance also add to your expenses. You can get a good sense of the costs of plans by looking at the four levels of coverage offered by the federal Health Insurance Marketplace. It categorizes plans as bronze, silver, gold, or platinum, with each category priced according to the level of coverage provided and their corresponding costs to the user.

The Bottom Line

Unlike many countries, the U.S. does not have a universal government health care system. Instead, it has a complicated system of subsidies and tax incentives that make health care affordable for most people most of the time.

If you are employed, you probably have health insurance that is subsidized by your employer. If you are self-employed, you can get insurance directly from a private insurer. If your income is low, you can get a subsidy for the costs. If you are elderly or disabled, you can get coverage through the federal Medicare or Medicaid programs.

Health Insurance: Definition, How It Works (2024)

FAQs

How does health insurance work in simple terms? ›

Health insurance provides important financial protection in case you have an accident or sickness. For example, health insurance may help to pay for doctors' services, medications, hospital care, and special equipment when someone is sick or injured, often in exchange for a monthly premium.

What is insurance how it works? ›

Insurance is a contract between an individual or business with an insurance company to help provide financial protection and mitigate the risks associated with certain situations or events. There are various types of insurance available, including health, dental and vision, life, auto, and legal insurance.

What is the definition of health insurance quizlet? ›

A type of insurance coverage that pays for medical and surgical expenses that are incurred by the insured. Health insurance can either reimburse the insured for expenses incurred from illness or injury or pay the care provider directly.

What is the best way to explain insurance? ›

Insurance is a way to manage your risk. When you buy insurance, you purchase protection against unexpected financial losses. The insurance company pays you or someone you choose if something bad happens to you. If you have no insurance and an accident happens, you may be responsible for all related costs.

How do you explain insurance for dummies? ›

Key Takeaways. Insurance is a contract (policy) in which an insurer indemnifies another against losses from specific contingencies or perils. There are many types of insurance policies. Life, health, homeowners, and auto are among the most common forms of insurance.

What is a health insurance explanation of benefits? ›

An explanation of benefits (EOB) shows you the total charges for your visit. An explanation of benefits isn't a bill. It helps you understand how much your health plan covers, and what you'll pay when you get a bill from your provider.

What is the simplest definition of insurance? ›

An insurance is a legal agreement between an insurer (insurance company) and an insured (individual), in which an insured receives financial protection from an insurer for the losses he may suffer under specific circ*mstances.

What is a simple definition of health policy? ›

Public health policy is defined as the laws, regulations, actions, and decisions implemented within society in order to promote wellness and ensure that specific health goals are met.

What is the definition of health in healthcare? ›

Definitions of health by the World Health Organization

This generally accepted definition states that “health is a state of complete physical, mental, and social well-being and not merely the absence of disease or infirmity” (11).

What is insurance in one word answer? ›

Insurance is a means of protection from financial loss in which, in exchange for a fee, a party agrees to compensate another party in the event of a certain loss, damage, or injury.

Why is health insurance important? ›

Health insurance protects you from unexpected, high medical costs. You pay less for covered in-network health care, even before you meet your deductible. You get free preventive care, like vaccines, screenings, and some check-ups, even before you meet your deductible.

What is insurance coverage in simple words? ›

It is the sum that provides financial protection to the insured, or their family in case of adversities, such as death, accident, illness or disability. That said, insurance coverage sets the limit of the financial cover one can avail. One cannot make claims that exceed insurance coverage.

How does health insurance payments work? ›

Each month, you make a payment to a health insurer, such as Medicare or your insurance company. Some employers chip in for this payment. In return, your insurer covers all or some of your medical costs, as long as you follow the insurer's rules.

How does insurance coverage work? ›

Insurance is a contract that transfers the risk of financial loss from an individual or business to an insurance company. They collect small amounts of money from clients and pool that money together to pay for losses. Insurance is divided into two major categories: Property and Casualty insurance (P&C)

What happens when you have health insurance? ›

Health insurance protects you from unexpected, high medical costs. You pay less for covered in-network health care, even before you meet your deductible.

Is health insurance worth it? ›

If you don't have health insurance, those stories can sure get you thinking, Do I need health insurance? The answer—yes! Health insurance has a reputation for being expensive and confusing, but it can also be the only thing standing between you and financial disaster if you ever need medical care.

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