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Insurance Guide

Deductible vs Copay vs Coinsurance vs Out-of-Pocket Max

The four numbers that decide what you actually pay — in plain English

6 min read · Updated September 9, 2026 · Reviewed by a licensed insurance agent
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Clear information for your next coverage decision.

Health-plan jargon hides the four numbers that actually determine your bills. Learn these once and every plan becomes readable.

1. Premium — what you pay to have the plan

Your monthly bill, due whether or not you see a doctor. A subsidy can lower it. Everything below is what you pay on top of the premium when you use care.

2. Deductible — what you pay before the plan kicks in

The amount you pay yourself each year before most coverage starts. A $3,000 deductible means you cover the first $3,000 of covered care. Some services (like preventive visits and often generic drugs) are covered before you hit it.

3. Copay and coinsurance — your share after the deductible

  • Copay: a flat fee for a service — say $30 for a doctor visit or $15 for a prescription.
  • Coinsurance: a percentage — say 20% of the cost — that you pay after meeting the deductible. The plan pays the rest.

4. Out-of-pocket maximum — your safety net

The most you can pay in a year for covered, in-network care. Once you hit it — through deductible, copays, and coinsurance combined — the plan pays 100% of covered costs for the rest of the year. This is the single most important number for protecting you in a bad year, and it matters more than the premium alone.

A quick example

Say your plan has a $2,000 deductible, 20% coinsurance, and a $7,000 out-of-pocket max. You have surgery billed at $30,000. You pay the first $2,000 (deductible), then 20% of the rest until you reach the $7,000 cap — so your total for the year is $7,000, not $30,000. That cap is why insurance matters even with a high deductible.

Want help matching these numbers to your budget and health? Our free tool compares plans from participating carriers and shows what you'd actually pay in about 60 seconds — no obligation, real answers from a licensed broker. Get your free quote →

Frequently Asked Questions

What is the difference between a copay and coinsurance?

A copay is a flat fee, like 30 dollars a visit; coinsurance is a percentage of the cost, like 20%, that you pay after meeting your deductible.

What is an out-of-pocket maximum?

It is the most you will pay for covered, in-network care in a year. Once you reach it, your plan pays 100% of covered costs for the rest of the year.

Do I pay copays before meeting my deductible?

It depends on the plan. Preventive care and some generic drugs are often covered before the deductible; other services may require you to meet the deductible first.

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