Most Important Things to Consider Before Picking a Health Insurance Plan for 2027 Open Enrollment

Start with your provider network

Before comparing a single dollar figure, confirm whether your current doctors, specialists, and preferred hospital are actually in-network under each plan you're considering. Insurance companies negotiate different rates with different networks of providers, and a plan built around a narrow network can offer a lower premium specifically because it excludes providers you may already rely on.

This matters even more if you're managing an ongoing condition that requires a specific specialist, or if you have a pediatrician, OB-GYN, or mental health provider you don't want to lose. Switching plans to save on premium only to discover your trusted doctor is out-of-network can mean either paying significantly more out-of-pocket or starting over with someone new. Before enrolling, search each plan's specific provider directory, not just a general description of "broad network" or "local network," since those labels can mean very different things between insurers.

It's also worth checking whether a plan requires you to select a primary care physician and get referrals to see specialists, since this affects how much flexibility you'll have throughout the year, separate from the cost question entirely.

Understand your premium, and what it doesn't tell you

Your premium is the amount you pay every month just to maintain your coverage, regardless of whether you use any healthcare services at all. It's the number most people compare first, since it's the easiest to see, but it's genuinely just one piece of your total annual cost.

A lower premium plan typically comes with a higher deductible and higher cost-sharing once you do need care, while a higher premium plan often has a lower deductible and lower copays. Which trade-off makes sense for you depends heavily on how much healthcare you expect to use during the year. If you're generally healthy and rarely see a doctor beyond an annual physical, a lower-premium, higher-deductible plan might genuinely save you money. If you manage a chronic condition, take regular prescriptions, or expect a specific procedure in the coming year, a higher premium with lower cost-sharing can end up costing less overall once you add everything up.

Rather than comparing premiums in isolation, it helps to estimate your total likely annual cost for each plan: your premium for the full year, plus your realistic expected spending on deductibles, copays, and coinsurance based on your actual healthcare habits.

Know your deductible before you need it

Your deductible is the amount you pay out-of-pocket for covered services before your insurance starts sharing costs with you. Deductibles vary enormously between plans, and a plan with a very low premium often pairs it with a deductible high enough that you could pay thousands of dollars before your coverage meaningfully kicks in.

It's worth checking whether your plan's deductible applies to all services or only certain categories, since some plans cover preventive care and even some primary care visits before the deductible is met, while still applying the full deductible to things like specialist visits, imaging, or hospital stays. Understanding this distinction specifically, rather than assuming "deductible" means the same thing across every plan, can prevent a surprising bill early in the plan year.

If you're comparing a family plan, also check whether there's a separate individual deductible within the family deductible, since some plans require one family member to meet their own deductible even if the family total hasn't been reached yet, while others don't.

Copays, coinsurance, and how cost-sharing actually works

Once you've met your deductible, most plans split the cost of care with you through either a copay (a fixed dollar amount per visit or service) or coinsurance (a percentage of the total cost). Some services, like preventive care, are often covered in full regardless of your deductible status, which is worth confirming specifically for each plan you're comparing.

Copays tend to be more predictable, since you know exactly what a routine visit or prescription refill will cost you upfront. Coinsurance can be harder to estimate in advance, since a 20% coinsurance on a routine visit is very different from 20% of a major procedure or hospital stay. When comparing plans, look specifically at the coinsurance percentage for the services you're most likely to use, rather than assuming all coinsurance structures are roughly equivalent.

It's also worth checking your plan's specific prescription drug formulary and the cost tier your regular medications fall into, since the same drug can be a low-cost generic tier on one plan and a much higher specialty tier on another.

Your out-of-pocket maximum is your real safety net

The out-of-pocket maximum is the most you'll have to pay for covered services in a plan year, combining your deductible, copays, and coinsurance. Once you hit this limit, your plan pays 100% of covered costs for the remainder of the year. This figure is the real ceiling on your financial risk, and it's worth comparing directly between plans rather than assuming a lower premium automatically means lower overall risk.

A plan with a low premium and a very high out-of-pocket maximum might work fine in a year where nothing goes wrong, but it can expose you to a significantly larger bill if you experience a serious illness, injury, or surgery. Weighing your premium against your out-of-pocket maximum, specifically in a worst-case scenario, is one of the most useful ways to compare plans honestly.

Metal tiers: a shorthand, not the whole story

ACA Marketplace plans are grouped into Bronze, Silver, Gold, and Platinum tiers, which roughly indicate how costs are split between you and the insurer: Bronze plans generally have the lowest premium and highest cost-sharing, while Platinum plans have the highest premium and lowest cost-sharing, with Silver and Gold falling in between. These tiers are a useful starting shorthand, but they don't replace actually comparing the specific deductible, copay structure, and network of the individual plans within a tier, since two Silver plans from different insurers can differ meaningfully in their real cost-sharing details.

Don't forget prescription coverage and specific benefits

Beyond the core cost-sharing structure, it's worth checking a plan's specific coverage for anything you know you'll need: maternity care if you're planning a pregnancy, mental health and substance use services, physical therapy visit limits, or coverage for a planned surgery or ongoing treatment. Essential health benefits are required under the ACA, but the specific limits, visit caps, and cost-sharing within those categories can still vary between plans.

If you take regular prescriptions, confirm each plan's formulary covers your specific medications at a cost tier you can actually afford, rather than assuming all ACA-compliant plans handle prescriptions the same way. If your employer offers coverage but it doesn't fit your needs, it's also worth comparing it against a short-term plan or a health share option as potential alternatives, each with its own trade-offs worth understanding before you decide.

A quick checklist

• Confirm your current doctors, specialists, and preferred hospital are in-network under any plan you're seriously considering, not just listed as "accepted" in general marketing materials.
• Estimate your total annual cost for each plan by adding the full-year premium to your realistic expected out-of-pocket spending, rather than comparing premiums alone.
• Check whether your specific prescriptions are covered, and at what cost tier, under each plan's formulary.
• Compare each plan's out-of-pocket maximum specifically, since this is your real financial ceiling in a worst-case year.
• Mark the enrollment deadline for your specific state, since some states extend beyond the federal January 15 date, and missing it can mean waiting for a qualifying life event to enroll later.
• Talk to a licensed broker to compare plans across multiple carriers side by side, rather than evaluating options one insurer's website at a time.

For the authoritative, non-commercial sources on this topic, HealthCare.gov publishes the official 2027 open enrollment dates and plan comparison tools directly, and the National Association of Insurance Commissioners (NAIC) publishes consumer guidance on comparing health insurance plan types and cost-sharing structures.

Frequently asked questions about choosing a 2027 health insurance plan

Have a question that isn't answered below? Our full health insurance FAQ page covers more, and our blog has deeper guides on specific coverage topics.