| Average family deductible (employer plan) | Typically $1,000 to $3,000 per year (KFF Employer Health Benefits Survey, 2023) |
| Out-of-pocket maximum cap (ACA plans) | $9,450 individual / $18,900 family (HHS, plan year 2024) |
| Plans requiring prior authorization | More than 90% of covered workers (KFF Employer Health Benefits Survey, 2023) |
| Common coinsurance split | 80/20 (insurer/patient) (General industry standard) |
| Open enrollment window (ACA Marketplace) | November 1 to January 15 most years (Healthcare.gov) |
Why the vocabulary on your insurance card matters
Health insurance documents are full of terms that look straightforward but behave in ways most families do not expect. A deductible and a copay are both things you pay, but they apply at different moments and accumulate differently. Getting these distinctions wrong can mean an unexpected bill after a hospital visit or a denied claim for a medication your doctor ordered.
This guide defines the terms most likely to affect what your family actually pays, and explains how they interact with each other. It is general health and financial information, not advice tailored to any individual plan or medical situation. For questions about your specific coverage, contact your insurer or a licensed insurance broker.
Deductible
The amount you pay for covered health services before your insurance plan starts paying. For example, if your deductible is $1,500, you pay the first $1,500 of covered care each plan year.
Copay
A fixed dollar amount you pay for a specific service, such as $30 for a primary care visit. Copays are usually due at the time of the appointment and may or may not count toward your deductible depending on the plan.
Coinsurance
Your share of costs after your deductible is met, expressed as a percentage. If your plan has 20% coinsurance, you pay 20% of the allowed amount for a covered service and your insurer pays the other 80%.
Out-of-pocket maximum
The most you will pay for covered services in a plan year. Once you reach this limit, your insurer pays 100% of covered costs for the rest of the year.
Premium
The monthly amount you pay to maintain your health insurance coverage, regardless of whether you use any medical services that month.
Network
The group of doctors, hospitals, and other providers that have agreements with your insurer to provide services at negotiated rates. Using in-network providers generally costs significantly less than going out of network.
Explanation of Benefits (EOB)
A statement from your insurer, sent after a claim is processed, that shows what was billed, what the insurer paid, and what you owe. It is not a bill, but it helps you verify charges.
Prior authorization
Approval from your insurer required before certain procedures, specialist visits, or medications are covered. Without it, your plan may deny the claim or require you to pay the full cost.
How costs stack up across a plan year
The four numbers that most directly determine what your family spends are the premium, the deductible, coinsurance, and the out-of-pocket maximum. They work in sequence.
You pay the premium every month no matter what. When you need care, you pay the full allowed cost of most services until you have spent your deductible amount. After that, coinsurance applies: you pay your share (often 20%) and the insurer covers the rest. Once your total out-of-pocket spending hits the plan's maximum, the insurer covers 100% of covered services for the remainder of the plan year.
Copays for common services like primary care visits often apply from day one, even before the deductible is met, though this varies by plan. Some plans waive the deductible for preventive care entirely, which means a well-child visit or an annual physical may cost nothing beyond the premium. Checking your plan's Summary of Benefits and Coverage document will clarify which services are subject to the deductible and which are not.
| Average family deductible (employer plan) | Typically $1,000 to $3,000 per year (KFF Employer Health Benefits Survey, 2023) |
| Out-of-pocket maximum cap (ACA plans) | $9,450 individual / $18,900 family (HHS, plan year 2024) |
| Plans requiring prior authorization | More than 90% of covered workers (KFF Employer Health Benefits Survey, 2023) |
| Common coinsurance split | 80/20 (insurer/patient) (General industry standard) |
| Open enrollment window (ACA Marketplace) | November 1 to January 15 most years (Healthcare.gov) |
Families who are prone to skipping annual checkups because of cost concerns may find that preventive care exemptions make those visits more affordable than they assumed. See why families skip annual checkups for other common barriers and how to address them.
Terms that affect where and how you get care
Your plan's network determines which providers you can see at the lower, negotiated rate. Most plans fall into a few broad types: HMO plans generally require you to choose a primary care physician and get referrals to see specialists; PPO plans give more flexibility to see out-of-network providers, though at higher cost; HDHP plans (high-deductible health plans) pair a lower premium with a higher deductible and are often paired with a Health Savings Account (HSA).
An HSA lets you set aside pre-tax dollars to pay for qualified medical expenses. The money rolls over year to year and can be used for copays, prescriptions, and many other costs. Contribution limits are set annually by the IRS, so verify the current figures before planning your contributions.
Prior authorization is a process that catches many families off guard. If your doctor orders an MRI, a specialty drug, or a non-emergency procedure, the insurer may require advance approval before they will cover it. If you or your provider skip this step, you could be billed the full amount. Asking your provider's office whether a service requires prior authorization before the appointment is a straightforward way to avoid that outcome.
Telehealth visits have their own coverage rules that vary by plan. Some plans cover them at a standard copay; others apply them to the deductible. Telehealth for families covers which situations it suits well and when an in-person visit is more appropriate.
This article is for general informational purposes only and is not medical or financial advice. Consult a licensed insurance professional or your plan administrator for guidance specific to your coverage and health situation.