A Practical Guide to Comparing Health Insurance Plans

The number that actually bounds your risk is the out-of-pocket maximum. Once you reach it, the plan pays everything for the remainder of the year. Under the Affordable Care Act these caps are federally limited for compliant plans, and for 2026 they sit in the region of $10,600 for an individual and roughly double that for a family. That figure, plus twelve months of premium, is your realistic worst case.

Model two years, not one

Do the arithmetic twice for each plan under consideration. First a healthy year: twelve premiums plus whatever routine care you actually use. Then a bad year: twelve premiums plus the full out-of-pocket maximum.

This exercise regularly inverts the ranking. A bronze plan with a low premium and a $7,000 deductible wins comfortably in the healthy scenario and loses badly in the bad one. A gold plan does the reverse. Which you should prefer depends on whether you could actually produce the deductible if you needed to, and on how predictable your health is.

Networks matter more than benefits

An HMO requires you to stay in network and usually to route specialist care through a primary care physician. A PPO lets you go out of network at higher cost and self-refer. EPOs and POS plans sit in between.

Before comparing anything else, check whether your existing doctors are in the network — and check on the insurer's own current directory, because these are updated constantly and third-party lists go stale. If you are attached to a particular specialist or hospital system, that single constraint may decide the plan for you.

Also check the hospital affiliation of any facility you would realistically use in an emergency. Federal surprise-billing protections have substantially improved the position for out-of-network emergency care since 2022, but ground ambulance services remain a notable gap in many states.

The drug formulary is the overlooked document

If you take regular medication, the formulary is more important than the deductible. Plans sort drugs into tiers, and the same prescription can cost $10 on one plan and several hundred on another. Some plans exclude specific drugs entirely, or require step therapy — trying a cheaper alternative first and documenting that it failed.

Look up each of your medications by name on each plan's formulary before choosing. It takes fifteen minutes and is the single most reliable way to avoid a nasty surprise in February.

HSA eligibility is a genuine advantage

High-deductible health plans that qualify for a Health Savings Account carry a tax benefit unmatched elsewhere in the US system: contributions are deductible, growth is untaxed, and withdrawals for medical costs are untaxed. Three-way tax advantage, and after 65 the funds can be withdrawn for any purpose at ordinary income rates.

If your employer contributes to the HSA, count that money as a direct reduction in the plan's cost when comparing. An HDHP with a $1,500 employer HSA contribution may beat a lower-deductible plan outright once you account for it.

Subsidies change the picture entirely

If you buy through the marketplace rather than an employer, premium tax credits are based on household income relative to the federal poverty level, and they are applied to the second-cheapest silver plan in your area. Cost-sharing reductions — which lower deductibles and out-of-pocket maximums substantially — are available only on silver plans and only below certain income levels.

This produces a specific and widely missed consequence: for some households a silver plan is cheaper in total than bronze, because the cost-sharing reductions outweigh the premium difference. Always price silver even if the bronze premium looks lower.

A workable process

List your doctors, your prescriptions and any procedures you expect. Filter to plans that keep your doctors in network. Check each remaining plan's formulary against your medication list. Then run the healthy-year and bad-year arithmetic on the survivors and choose based on which risk you would rather carry.