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Health insurance, in plain English.

Plain-English guides to health insurance for individuals and families: how plans work, getting covered through the Marketplace, Medicaid or CHIP, and getting the most from the coverage you have. Every guide links to its sources.

Start hereHow Health Insurance Works: Premiums, Deductibles and Cost SharingHow premiums, deductibles, copays, coinsurance and the out-of-pocket maximum fit together, with a worked example of one hypothetical plan year.

Articles

18 articles

Health Insurance Basics

How Health Insurance Works: Premiums, Deductibles and Cost Sharing

How premiums, deductibles, copays, coinsurance and the out-of-pocket maximum fit together, with a worked example of one hypothetical plan year.

Read · 6 min read →
Health Insurance Basics

Out-of-Pocket Maximums: What Counts and What Doesn't

What the out-of-pocket maximum covers, the 2026 and 2027 federal ceilings, what never counts toward it, and how the limit works on family plans.

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Health Insurance Basics

HMO, PPO, EPO and POS Plans: How the Network Rules Differ

How HMO, PPO, EPO and POS plans handle networks, referrals and out-of-network care, plus questions to help you decide which rules fit you.

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Health Insurance Basics

High-Deductible Health Plans: IRS Rules for 2026 and 2027

How HDHPs work, the IRS deductible and out-of-pocket figures for 2026 and 2027, the new Bronze and Catastrophic rule, and trade-offs to weigh.

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Health Insurance Basics

Reading an Explanation of Benefits: What Each Line Means

What an Explanation of Benefits shows, how to match it to a provider's bill, what partial denials mean, and how to spot medical identity theft.

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Health Insurance Basics

Summary of Benefits and Coverage: How to Read and Compare

What the federally required Summary of Benefits and Coverage tells you, section by section, and how to use it to compare health plans.

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Marketplace & Medicaid

The Health Insurance Marketplace: How Applying and Enrolling Works

Who can use the Health Insurance Marketplace, how one application checks you for savings, Medicaid and CHIP, what every plan covers, and how to avoid scams.

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Marketplace & Medicaid

Open Enrollment and Special Enrollment Periods: Key 2027 Dates

HealthCare.gov's and CMS's dates for 2027 Open Enrollment, what current enrollees should do, and which life events open a Special Enrollment Period and which don't.

Read · 7 min read →
Marketplace & Medicaid

Premium Tax Credits and Extra Savings: How the 2026 and 2027 Rules Work

How the premium tax credit and cost-sharing reductions work under 2026 and 2027 IRS rules, including the 400% income limit and the end of repayment caps.

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Marketplace & Medicaid

Bronze, Silver, Gold and Platinum: What Metal Tiers Really Mean

What Marketplace metal levels say about cost sharing, why Silver matters for savings, how Catastrophic plans differ, and how to compare total yearly cost.

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Marketplace & Medicaid

Medicaid and CHIP Eligibility: Who Can Qualify and How to Apply

A general look at who Medicaid and CHIP cover, how state expansion choices matter, the adult rule changes starting in 2027, and how to apply any time.

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Marketplace & Medicaid

Losing Job-Based Coverage: Comparing COBRA and the Marketplace

How COBRA and Marketplace coverage compare on cost, deadlines and switching rules after a job loss, using Department of Labor and HealthCare.gov guidance.

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Using Your Coverage

Free Preventive Care: What the ACA Covers and When You Still Pay

Which screenings, vaccines and checkups most plans must cover at no cost, where the list comes from, and why a preventive visit can still produce a bill.

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Using Your Coverage

Appealing a Denied Health Claim: Internal Appeals and External Review

How to read a denial notice, file an internal appeal, request an independent external review and meet the federal deadlines that apply.

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Using Your Coverage

Surprise Medical Bills: How the No Surprises Act Protects You

What the No Surprises Act covers, what it doesn't, when to refuse a notice and consent form, and how to dispute or report a surprise bill.

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Using Your Coverage

Health Savings Accounts: How HSAs Work and the 2026 and 2027 IRS Limits

Who can contribute to an HSA, the 2026 and 2027 IRS limits, the new bronze-plan rule, what the money can pay for, and how Medicare changes things.

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Using Your Coverage

Health FSAs Explained: Limits, Deadlines and What They Cover

How a health flexible spending account works, the 2026 IRS limits, use-it-or-lose-it rules, eligible expenses and how FSAs interact with HSAs.

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Using Your Coverage

Prior Authorization and Referrals: Getting Care Approved First

The difference between prior authorization and referrals, when approval isn't required, how fast plans must decide, and what to do after a denial.

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Health Insurance A–Z

54 Health insurance terms explained in a sentence or three, from coinsurance to out-of-pocket maximum.

Browse Health Insurance A–Z →