A copay is a fixed fee you pay each time you get care. For example, a plan may charge $25 for a primary care visit and $40 to see a specialist, though the exact amounts are set by your plan. Fixed amounts make it easier to budget for routine expenses like checkups or prescription refills.
Coinsurance vs. Copay: What's the Difference?
Updated: August 21, 2026
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Key Takeaways
Copay plans give you predictable costs per visit. Coinsurance plans usually cost less each month.
You’ll often pay copays before meeting your deductible and coinsurance after meeting it.
Plans with copays offer predictable costs, while coinsurance plans usually have lower monthly premiums.
What Is a Copay in Health Insurance?
What Is Coinsurance in Health Insurance?
Coinsurance is the share of your medical bill you pay after meeting your deductible. For example, if your plan covers four of every five dollars in costs after your deductible and a procedure costs $5,000, you'd pay $1,000 and your insurer covers the remaining $4,000. You'll keep paying your coinsurance share until you reach your out-of-pocket maximum. That cap is the most you'll spend on covered care in a year before your plan covers everything.
What Is the Difference Between Copay and Coinsurance?
Copays and coinsurance both affect how much you pay for care, but they work differently. A copay is a fixed fee, while coinsurance is a percentage of your bill after meeting your deductible. Here’s how they compare across main factors:
How It Works | You pay a fixed dollar amount | You pay a percentage of the total bill |
When You Pay | At the time of service | After your insurer processes the claim |
Typical Amount | $20–50 for doctor visits | 20–30% of the total cost |
Predictability | Same amount every time | Changes based on the service cost |
Deductible Impact | Usually doesn't count toward deductible | Only applies after you meet your deductible |
Common Services | Doctor visits, prescriptions, urgent care | Hospital stays, surgeries, lab work |
Example Cost | $30 specialist visit copay | 20% of a $5,000 MRI ($1,000) |
Is It Better to Have Copay or Coinsurance?
The right choice depends on how often you use care. Coinsurance plans cost less each month, but that advantage disappears for anyone visiting a doctor more than twice a year. At that point, a plan with fixed copays is the more predictable and usually cheaper choice.
You visit doctors frequently for chronic conditions | Copays | Copays keep each visit predictable. A $30 copay is easier to budget than 20% coinsurance on a $200 specialist visit. |
You're healthy and rarely see doctors | Coinsurance | Coinsurance plans have lower monthly premiums, so you spend less overall when you don't need much care. You pay the percentage only when you use services. |
You're planning surgery or have upcoming medical expenses | Copays | Fixed copays make it easier to budget for known expenses. A $50 copay for pre-surgery appointments is more predictable than coinsurance that varies by service cost. |
You want lower monthly premiums | Coinsurance | Coinsurance plans cost less each month. That lower premium frees up room in the monthly budget for other expenses |
You have trouble keeping emergency savings | Copays | Smaller fixed copay amounts are easier to manage than variable coinsurance bills. A $25 copay is a known quantity but a $400 coinsurance payment isn't. |
What Is Cost Sharing in Health Insurance?
Cost sharing is how you and your insurer divide the cost of medical care. Health plans use four tools (deductible, copays, coinsurance and out-of-pocket maximum) to determine your portion of each bill, and each applies at a different point in your plan year.
Your spending is highest early in the year, before you've met your deductible. After that, copays and coinsurance apply based on the type of care. Your out-of-pocket maximum caps the total, and once you reach it, your plan covers all eligible costs.
- Deductible: What you pay before cost sharing begins
- Copay: A flat dollar amount per visit
- Coinsurance: Your share of costs after meeting your deductible
- Out-of-pocket maximum (MOOP): Your annual cap on covered care costs
How Coinsurance and Copay Work Together
Copays and coinsurance apply at different stages of your plan year, and both affect your total spending. Most plans use all four cost-sharing tools (deductible, copay, coinsurance and out-of-pocket maximum) at different points, so how much you pay changes as the year progresses.
Before Meeting Your DeductibleYour deductible is the annual amount you pay before your plan starts sharing costs. During this phase, you pay full price for most services. Preventive care like annual checkups and vaccinations stays free under the Affordable Care Act (ACA). Some plans charge copays for primary care before the deductible is met, giving you a flat cost for routine appointments instead of the full visit price.
After Meeting Your DeductibleYour plan starts sharing costs once you meet your deductible. You'll pay copays for services like doctor visits or prescriptions. Coinsurance applies to larger expenses like surgery and hospital stays. On the same day, you may pay a $30 copay to see your doctor that day and a separate coinsurance charge for an MRI.
With Your Out-of-Pocket MaximumYour out-of-pocket maximum is the most you'll pay for covered care in a plan year. Once you reach it, you stop paying copays and coinsurance for the rest of the year. In 2026, the ACA limit is $10,600 for individual coverage and $21,200 for family coverage.
Bottom Line
Copays charge a flat fee each visit. Coinsurance bills you for a share of costs once your deductible is met. Plans built around coinsurance usually carry lower monthly premiums.
The right choice depends on how often you use care. If you see a doctor regularly, fixed copays are easier to budget. If you rarely need care, a lower-premium coinsurance plan usually costs less overall.
In my analysis, most people with ongoing prescriptions or regular specialist visits come out ahead with copays. The predictability on its own is worth more than the premium savings from coinsurance plans for anyone who uses care consistently.
Frequently Asked Questions
Not for the same service. Copays apply to services like doctor visits, and coinsurance applies to larger services like hospital stays or surgeries. You can pay both on the same day. A visit to your doctor carries a copay; an MRI during the same visit falls under coinsurance.
Most plans use both for different types of care. You pay a copay when you see your doctor or pick up a prescription. Coinsurance applies to larger services like surgery or imaging. You can pay both on the same date, such as a doctor visit and an MRI, with each charge covering a different service.
It depends on your plan design. Many plans charge copays for doctor visits and prescriptions before the deductible is met. Whether those copays count toward the deductible total varies. Plans that count copays toward the deductible reduce how quickly you reach it. Your plan's Summary of Benefits and Coverage document confirms which rule applies to you.
Coinsurance starts once you meet your deductible. Before that point, you pay the full cost of most services, though some plans charge copays for doctor visits and prescriptions regardless of deductible status. Once you meet the deductible, the plan pays its share and you pay the coinsurance portion on each remaining covered service.
Once you reach your out-of-pocket maximum, you no longer pay copays or coinsurance. Your plan then covers all remaining eligible costs for the rest of the plan year. In 2026, the ACA limit is $10,600 for individual coverage and $21,200 for family coverage. These limits reset at the start of each new plan year.
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About Mark Fitzpatrick
Mark Fitzpatrick is a licensed Property and Casualty (P&C) Insurance Producer in Connecticut and MoneyGeek's resident expert in insurance and economics. In nearly a decade covering the insurance market at LendingTree and MoneyGeek, he's analyzed hundreds of carriers and millions of rates across auto, home, renters, health and life insurance.
His work has appeared in The Washington Post, The New York Times and NPR. He draws on independent cost and consumer experience data, and no insurance company partnerships affect his recommendations.
Mark studied at Boston College and later earned a master's in economics and international relations from Johns Hopkins University. He worked in financial risk management at State Street before joining MoneyGeek. He's also a five-time “Jeopardy!” champion.
Sources
- Healthcare.gov. "Out-of-pocket maximum/limit." Accessed September 20, 2026.