How does health insurance work? 

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What is health insurance and how does it work?

Simply put, health insurance is an agreement between you and a health insurance company — you pay a monthly premium, and the health insurance company helps you pay for medical care and services that come up. Choosing the right coverage is important — and there’s a lot to consider. 

The best health plan for you is one that meets your health care needs, budget, and expectations. But it can be tough to know what to look for — and what to avoid. About half of consumers don’t fully understand their coverage, and one-third of those people don’t understand what costs their plan does and doesn’t cover.1 Asking yourself these questions can help you make the right choice for yourself and your family.

Before you decide on a plan, you’ll need to think about:

  • Your health and how often you need care
  • How much coverage you need
  • How much money you’re willing to spend
  • How different health plans work
  • What each plan offers beyond the basics

How do I choose a health insurance plan?

Almost 3 out of 4 of insured adults are worried about affording the cost of health care services (including out-of-pocket costs not covered by insurance and prescription drug costs),2 so picking a health insurance plan can feel overwhelming. It can be made easier by understanding some key terms: 

  • Premium: Your monthly plan cost. This is the cost of your coverage and doesn’t include the out-of-pocket cost for each service you receive — you’ll always pay at least this amount each month, regardless of how much or how little care you receive.
  • Deductible: How much you must spend for covered health care services before your health plan starts to pay for anything beyond no-cost preventive care. After you reach your deductible, you’ll typically just pay a copay or coinsurance.
  • Copay: A flat fee you pay for specific services covered under your health care plan. Copays may apply whether or not you’ve met your deductible.
  • Coinsurance: A percentage of the cost that you’re responsible for paying when you receive a specific service. For example, a 20% coinsurance for a $100 procedure means you pay $20. Coinsurance may apply whether or not you’ve met your deductible. People often confuse coinsurance with copays, but they’re different. Your plan may have copays or coinsurance — or it may have both. 
  • Out-of-pocket maximum: The most out-of-pocket costs you’ll have to spend for most covered services within a year. After you reach this amount, your health plan pays 100% for most covered services. You’re only responsible for paying your monthly premium and, depending on your plan, copays or coinsurance.

Understanding these terms and your total health care costs will help you pick the best health insurance plan for you while saving money.
 

What are the types of health insurance?

The most common types of health plans are HMO and PPO. Learn the difference between HMO and PPO plans to figure out which choice is right for you. Beyond that, getting to know the 4 coverage levels — also called metal tiers — within those plan types will help you understand:

  • What’s covered
  • What you’re responsible for paying
  • What’s the best fit for your health care needs

It’s important to know that the metal tiers are only based on how you and your health plan split costs — they have nothing to do with the quality of care you’ll receive.

Health insurance plan types — the 4 metal tiers

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Bronze:  Lowest monthly premium | Highest deductible | Highest out-of-pocket costs for care 

A good choice for healthy people who rarely see the doctor and want a low-cost way to protect themselves in case they occasionally get injured or sick.

Once you’ve met your deductible, this health plan pays for 60% of your care and you pay 40% of your care. 

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Silver: Moderate monthly premium | Moderate deductible | Moderate out-of-pocket costs for care

A good choice for generally healthy people willing to pay a little more each month to have fewer out-of-pocket expenses before your health plan starts covering the cost of care. 

Once you’ve met your deductible, this health plan pays for 70% of your care and you pay 30% of your care. 

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Gold: Higher monthly premium | Lower deductible | Lower out-of-pocket costs for care 
A good choice for people with dependents and who use health care services regularly throughout the year.

Once you’ve met your deductible, this health plan pays for 80% of your care and you pay 20% of your care. 

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Platinum: Highest monthly premium | Lowest deductible | Lowest out-of-pocket costs for care 

A good choice for people with known health issues who have frequent specialty care needs, tests, and prescriptions.

Once you’ve met your deductible, this health plan pays for 90% of your care and you pay 10% of your care.   
 


What else comes with health insurance?

Health plans offer a variety of tools and services that make it easier to access care, and may offer perks that help you live healthier overall. For example:
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Convenient care options that make it easy to access in-person or virtual care.

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Self-care apps to support a healthy mind, body, and spirit.

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Healthy lifestyle programs that can help you make healthy lifestyle changes.

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Fitness deals with reduced rates on studios, gyms, fitness gear, and online classes.

When should I get health insurance? 

You should consider getting health insurance as soon as possible, especially if you’re between jobs or transitioning to a new one. You can get your health insurance usually through an employer, but you can also purchase individual and family plans year-round for when you’re between jobs. Even if you’re healthy, insurance gives you protection against catastrophic events, like COVID-19 or an accident that requires surgery and an extended hospital stay. Your health insurance can help pay for care when you need it, without breaking the bank.  

Now you’re ready to choose a health insurance plan

You deserve a health plan that fits your health care needs and budget — and truly helps you thrive. Now that you know what’s most important to consider when shopping for health insurance, it should be easier to make the right choice. 

Learn more about choosing a health plan

Setting a health care budget
Learn how to plan for routine health care costs and prepare for the unexpected.
How much to contribute to your FSA/HSA
Learn how a flexible spending account (FSA) or health savings account (HSA) can help cover out-of-pocket medical expenses.
How high deductible health plans work
Learn how high deductible plans work and decide if one makes sense for you.

Learn more about Kaiser Permanente

Shop our plans
Compare all our health plan options, get a quote, and apply online.
Find doctors and locations
Find top-notch doctors, specialists, and pharmacies near you.
Get to know our care model
We’re uniquely designed to support your total health.

Footnotes
1Larry Levitt, MPP, and Drew Altman, PhD, “Complexity in the US Health Care System is the Enemy of Access and Affordability,” JAMA Network, October 26, 2023.
2Lunna Lopes et al., “Americans’ Challenges with Health Care Costs,” KFF, March 1, 2024. 
3How to Pick a Health Insurance Plan,” Healthcare.gov, April 1, 2024, healthcare.gov/choose-a-plan/plans-categories.