Coinsurance vs. Deductible vs. Copay (2026)

Your health plan’s price tag isn’t just the premium. Three other numbers decide what you owe when you actually get care, and they kick in at different times.

Key takeaways

A deductible is what you pay for covered care each year before your plan starts to pay. Coinsurance is your percentage share after that. A copay is a flat fee, like $30 [1][2][3].
All three count toward your out-of-pocket maximum. After you hit it, your plan pays 100% of covered in-network care for the rest of the year [4].
Marketplace out-of-pocket limits are $10,600 for an individual in 2026 and $12,000 in 2027, according to HealthCare.gov [4].
Your premium doesn’t count toward the deductible or the out-of-pocket maximum [4].

Coinsurance vs. deductible vs. copay: the short answer

The deductible comes first. Coinsurance comes after it. Copays are flat fees your plan sets for specific services, like a doctor visit or a prescription.

HealthCare.gov’s example: with a $2,000 deductible, you pay the first $2,000 of covered services yourself [1]. After that, with 20% coinsurance, a $100 visit costs you $20 and your plan pays $80 [2]. A copay stays the same no matter what the visit costs, such as $20 [3].

	Deductible	Coinsurance	Copay
What it is	Fixed yearly amount you pay before the plan pays [1]	Percentage of each covered bill [2]	Fixed dollar amount per service [3]
When you pay it	First, until it’s met [1]	After you meet the deductible [2]	Per visit or prescription; plan decides whether the deductible applies first [1][3]
Counts toward out-of-pocket max?	Yes [4]	Yes [4]	Yes [4]
Typical amount, job-based plans (2025)	$1,886 a year, single coverage [9]	19% for office visits, 20% for hospital stays [9]	$27 primary care, $45 specialist [9]

The rows that matter most are the last two. Every dollar of cost sharing moves you toward the same cap, and that cap is what protects you in a bad year.

What is a deductible?

A deductible is the amount you pay for covered health care before your insurance starts to pay [1]. It resets every plan year.

A few details change how it works in real life [1]:

Some care skips the deductible. Many plans pay for things like checkups or disease management programs before you’ve met it. All Marketplace plans pay the full cost of certain preventive services even before you meet your deductible.
Some plans have more than one. A plan can have a separate deductible for prescription drugs.
Families get two layers. Family plans often have an individual deductible for each person and a family deductible for everyone combined.

The trade-off is simple. Plans with lower monthly premiums generally have higher deductibles, and the reverse is also true [1]. Among workers with job-based coverage, 34% were in a plan with a deductible of $2,000 or more for single coverage in 2025, according to KFF [9].

What is coinsurance?

Coinsurance is the percentage of a covered service’s cost you pay after you’ve paid your deductible [2]. Your plan pays the rest.

That percentage applies to the “allowed amount,” not the sticker price. The allowed amount is the most your plan will pay for a covered service, sometimes called the negotiated rate [2].

Plans often describe coinsurance as a split, like “80/20.” That means the plan pays 80% and you pay 20%. Don’t mix that up with HealthCare.gov’s metal levels. A Bronze plan pays about 60% of costs on average, but that’s an estimate across all your care, not a 40% coinsurance rate [7].

HealthCare.gov shows how coinsurance plays out on a big bill. With $12,000 in allowed costs, a $3,000 deductible and 20% coinsurance, you’d pay $3,000 plus $1,800 (20% of $9,000), or $4,800 total [2].

What is a copay?

A copay, or copayment, is a fixed amount you pay for a covered service, such as $20 for a doctor visit [3]. It can differ by service within the same plan. Drugs, lab tests and specialist visits often have their own copays [3].

Here’s the part people miss: a copay isn’t always available from day one. HealthCare.gov’s own example says that if you haven’t met your deductible, you pay the full allowed amount for the visit, not the copay [3]. Other plans charge the copay right away for certain services [1]. Your plan’s Summary of Benefits and Coverage (SBC) shows which way each service works [8].

In job-based plans, the average copay was $27 for a primary care visit and $45 for a specialist in 2025, KFF reports [9]. Plans with lower premiums generally have higher copays [3].

What does coinsurance after deductible mean?

“Coinsurance after deductible” means you pay the full allowed cost of care until you meet your deductible. After that, you pay only your coinsurance percentage until you reach your out-of-pocket maximum [2][4].

Here’s what that looks like on a $10,000 allowed bill with a $2,000 deductible you haven’t met yet. It assumes your plan’s out-of-pocket maximum is high enough not to cap the bill.

Coinsurance after deductible	Your share of the remaining $8,000	Your total	Plan pays
0%	$0	$2,000	$8,000
10%	$800	$2,800	$7,200
20%	$1,600	$3,600	$6,400
30%	$2,400	$4,400	$5,600
40%	$3,200	$5,200	$4,800
50%	$4,000	$6,000	$4,000

0% coinsurance after deductible means that once you’ve met the deductible, your plan pays the full allowed amount for that service. 50% coinsurance after deductible means you and your plan split each bill evenly after the deductible. Either way, your out-of-pocket maximum still caps what you pay in a year [4].

Where the out-of-pocket maximum and premium fit in

Out-of-pocket maximum

The out-of-pocket maximum is the most you pay for covered services in a plan year. After you spend that much on deductibles, copays and coinsurance for in-network care, your plan pays 100% of covered benefits [4].

The limit doesn’t include your premiums, care your plan doesn’t cover, out-of-network care, or charges above the allowed amount [4]. Plans can set a lower limit than the federal cap, so check your SBC [8].

Limit	2026	2027
Marketplace out-of-pocket max, individual [4]	$10,600	$12,000
Marketplace out-of-pocket max, family [4]	$21,200	$24,000
HSA-eligible plan: minimum deductible, self-only / family [10][11]	$1,700 / $3,400	$1,750 / $3,500
HSA-eligible plan: out-of-pocket max, self-only / family [10][11]	$8,500 / $17,000	$8,700 / $17,400

Figures checked October 2026. The same $12,000 and $24,000 caps apply to most job-based plans starting in 2027, not just Marketplace health insurance, according to Milliman’s summary of the CMS guidance [14].

The IRS sets the HSA limits, and its out-of-pocket figure counts deductibles, copays and other amounts, but not premiums [10]. HealthCare.gov says all Bronze and Catastrophic Marketplace plans work with a Health Savings Account (HSA) [7]. For 2026, you can put up to $4,400 into an HSA with self-only coverage or $8,750 with family coverage [10].

Premium

Your premium is what you pay every month to keep coverage, whether you use care or not [5]. It sits outside the cost-sharing system: it doesn’t reduce your deductible or count toward your out-of-pocket max [4].

In 2025, job-based single coverage averaged $9,325 a year in total premiums, and workers paid 16% of that on average, according to KFF [9]. That’s about $1,492 a year, or $124 a month.

A year of medical bills, worked out

Numbers make this click. Meet Maya, who has single coverage through work. Her plan is illustrative, built close to KFF’s 2025 averages [9]:

Premium: $125 a month ($1,500 a year)
Deductible: $2,000
Coinsurance: 20% after the deductible
Copays: $25 primary care, $45 specialist; on her plan, office-visit copays apply before the deductible and don’t count toward it
Out-of-pocket maximum: $5,000, in network

All her care is in network, and the dollar figures are allowed amounts.

Month	Care	Allowed amount	How it’s split	Maya pays	Plan pays	Maya’s total toward the max
Jan	Annual checkup (preventive)	$250	Free preventive care [6]	$0	$250	$0
Feb	Sick visit, primary care	$140	$25 copay	$25	$115	$25
Mar	Specialist visit	$250	$45 copay	$45	$205	$70
Apr	MRI	$1,200	All of it goes to the deductible	$1,200	$0	$1,270
Jul	ER visit and ankle surgery	$14,000	Last $800 of deductible, then 20% of $13,200 ($2,640)	$3,440	$10,560	$4,710
Aug–Sep	6 physical therapy visits at $150	$900	20% coinsurance	$180	$720	$4,890
Oct	Follow-up procedure	$3,000	20% would be $600, but only $110 is left before the max	$110	$2,890	$5,000
Nov	Specialist follow-up	$250	Out-of-pocket max reached	$0	$250	$5,000
Total		$19,990		$5,000	$14,990

What Maya paid, by type

Copays: $70
Deductible: $2,000
Coinsurance: $2,930 ($2,640 + $180 + $110)
Premiums: $1,500

Her cost sharing tops out at exactly $5,000. Add premiums, and her full year costs $6,500 on $19,990 of allowed charges. Her plan paid $14,990.

Same plan, quiet year

Now say Maya only has her checkup, two sick visits and one specialist visit. She pays $25 + $25 + $45 = $95 in copays. Add $1,500 in premiums, and her year costs $1,595. In a light year, the premium is most of your cost.

Same bad year, different plan

Compare a richer plan: $250 a month ($3,000 a year), a $500 deductible, 20% coinsurance, the same copays and a $3,000 out-of-pocket max.

Bad year: Maya hits the $3,000 max in July. Her year costs $3,000 + $3,000 = $6,000, or $500 less than the first plan.
Quiet year: She pays $95 in copays plus $3,000 in premiums, or $3,095. That’s $1,500 more than the first plan.

So the low-deductible plan only wins if a bad year actually happens. That’s the core trade-off HealthCare.gov describes: a slightly higher premium with a lower deductible can save a lot if you need a lot of care [5]. Run your own two options through our deductible calculator.

Does coinsurance count toward your deductible?

No. Coinsurance starts after the deductible, so it can’t count toward it. Blue Cross NC’s definition says the deductible doesn’t include coinsurance, charges above the allowed amount, or non-covered services [12].

Both still count toward your out-of-pocket maximum, as do copays [4]. That’s why the out-of-pocket max is the number to watch in a bad year, not the deductible.

Copays are the gray area. Whether a copay applies before your deductible, and whether it counts toward it, is set by your plan [1][3]. Look up each service in your SBC before you assume [8].

Note: Out-of-network care usually breaks these rules. Out-of-network costs don’t count toward your out-of-pocket limit, and neither do charges above the allowed amount [4].

How to compare health plans on all three

When you shop, compare total yearly cost, not just the premium [7]. A quick method:

Best case: add up 12 months of premiums plus the copays you expect in a normal year.
Worst case: add 12 months of premiums to the out-of-pocket maximum.
Check the gap. If you couldn’t pay the worst case, a lower deductible or lower maximum may be worth the higher premium.

Every plan must give you a Summary of Benefits and Coverage. It includes coverage examples for diabetes care and childbirth, which work like the Maya example above [8].

Two more things to check:

Metal level. Marketplace plans range from Bronze (plan pays about 60% on average) to Platinum (about 90%) [7]. If your income qualifies you for extra savings, those only apply on Silver plans [7].
HSA eligibility. A plan that meets the IRS deductible and out-of-pocket rules lets you save pre-tax money for your deductible and coinsurance [7][10].

Compare individual and family plans on our health insurance page.

“Coinsurance” means something else in home insurance

In property insurance, coinsurance refers to how much coverage you carry, not how you split a medical bill. The standard homeowners form pays full replacement cost only if your dwelling limit is at least 80% of the cost to rebuild [13]. Insure for less, and your claim payment shrinks.

Deductibles work differently too. A home policy applies its deductible to each loss, not once a year [13]. Our guide to what homeowners insurance covers walks through the 80% rule with numbers. Car deductibles also apply per claim; see comprehensive vs. collision for how they’re set.

Pet insurance has its own twist. It uses a deductible plus a reimbursement rate, which is the share the plan pays back. Our pet insurance cost guide runs that math.

Get help comparing health plans

Plan summaries make the trade-offs visible, but comparing five or six of them takes time. A licensed agent can line up plans side by side, including your doctors and drugs, and show the best-case and worst-case cost of each.

Browse health insurance agents by state, find one near you, or look at agencies that write supplemental accident and health cover. You can also compare other types of coverage first.

Frequently asked questions

Is it better to have a copay or coinsurance?

A copay is more predictable, since it’s a fixed amount like $20 [3]. Coinsurance is a percentage, so it costs less on cheap services and more on expensive ones [2]. On a $50 drug, a $25 copay costs more than 20% coinsurance ($10). On a $1,000 scan, 20% coinsurance ($200) costs more than a $25 copay.

What does 0% coinsurance after deductible mean?

0% coinsurance after deductible means you pay the full allowed amount until you meet your deductible. After that, your plan pays 100% of the allowed amount for that covered service. Copays may still apply to some services, so check your Summary of Benefits and Coverage [8].

What does 50% coinsurance after deductible mean?

50% coinsurance after deductible means you and your plan split each covered bill evenly once you’ve met your deductible. On a $10,000 allowed bill with a $2,000 deductible, you’d pay $2,000 plus $4,000, or $6,000. Your out-of-pocket maximum still caps your yearly total [4].

Is the deductible part of the out-of-pocket maximum?

Yes, the deductible counts toward your out-of-pocket maximum, along with copays and coinsurance [4]. Once those add up to your limit, your plan pays 100% of covered in-network care for the rest of the plan year. Premiums don’t count toward it [4].

What happens after you meet your out-of-pocket maximum?

After you meet your out-of-pocket maximum, your plan pays 100% of the cost of covered benefits for in-network care for the rest of the plan year [4]. You still owe premiums. You can also still owe for non-covered services, out-of-network care and charges above the allowed amount [4].

Do premiums count toward your deductible?

No, premiums don’t count toward your deductible or your out-of-pocket maximum [4]. You pay the premium every month whether you use care or not [5]. That’s why a plan’s total yearly cost is its premiums plus whatever cost sharing you actually use.

The bottom line

Your deductible comes first, coinsurance is your share after it, and copays are flat fees along the way. All three stop at your out-of-pocket maximum, and your premium sits on top. Compare plans on best-case and worst-case yearly cost, not on any single number. More guides are on our insurance blog.

Coinsurance vs. Deductible vs. Copay: What You Pay and When