A health plan is a contract about who pays for what, and when. Nearly all of it reduces to six numbers plus one thing you have to look up. Do them in this order — the order matters, because an early answer can eliminate a plan before you waste time on the rest.
Step 1: Check the network first, not last
Before you look at a single dollar figure, open the carrier's provider directory for the exact plan you are considering and search for your people by name: your primary care doctor, your children's pediatrician, the specialist you see, and the hospital you would want to be taken to.
This step disqualifies more plans than anything else. Two plans from the same carrier can use different networks, and the cheaper one is very often cheaper precisely because the network is narrower. Verify by plan name, not just by carrier name, and if a provider is important to you, call their billing office and ask directly. Directories go stale.
Then check the emergency rule and the out-of-area rule. If your daughter is at school in another state, or you travel for work, how does the plan treat care away from home?
Step 2: The premium — but only in annual terms
Multiply the monthly premium by twelve. That is the amount you will spend whether or not you ever see a doctor. If a subsidy applies, use the after-subsidy figure. Write it down; it is one of two numbers you will add together at the end.
Step 3: The deductible, and what it does not apply to
The deductible is what you pay before the plan begins sharing most costs. Two details get missed constantly. First, family plans can have an embedded deductible (each person has an individual limit within the family total) or an aggregate one (the whole family amount must be met before anyone gets coverage). For a family of four that difference can be thousands of dollars in a bad year.
Second, a lot of care sits outside the deductible entirely. Preventive services are covered at 100% in network on ACA-compliant plans before you meet anything. Many plans also apply flat copays to office visits and generic prescriptions from day one. Read the "before deductible" column carefully — it can make a high-deductible plan behave far better than it looks on paper.
Step 4: Coinsurance and copays
After the deductible, you and the plan split costs. Coinsurance of 20% means you pay 20% of the negotiated rate until you hit the out-of-pocket maximum. Copays are flat amounts for specific services. Neither number means much on its own — they matter because of how quickly they drive you toward step 5.
Step 5: The out-of-pocket maximum, your real answer
This is the most important figure on the page and the one people skip. It is the ceiling: the most you can be required to pay for covered in-network care in a plan year. Past it, the plan pays 100%.
Add the annual premium from step 2 to the out-of-pocket maximum. That total is your true worst-case cost for the year. Now compare plans on that number. A plan with a $180 lower monthly premium and a $5,000 higher out-of-pocket maximum is not cheaper — it is a bet that nothing serious happens.
Step 6: The drug formulary
If anyone in your household takes a regular medication, look it up in the plan's formulary by name and dosage. Check the tier, whether prior authorization is required, and whether step therapy applies. Specialty medications are where the most expensive surprises live, and a plan that looks identical to another can treat the same drug completely differently.
Step 7: Read the exclusions
Every plan document has a section listing what is not covered or is limited. It is short and it is worth five minutes. Look specifically for anything relevant to your family's next twelve months: maternity, fertility, mental health and substance use treatment, physical therapy visit caps, chiropractic, bariatric surgery, and anything related to a condition you are already managing.
Then run two scenarios
With the numbers in hand, price each plan under two futures.
- A normal year. Your usual physicals, a couple of sick visits, your regular prescriptions. Annual premium plus expected out-of-pocket.
- A bad year. A surgery, a birth, a serious diagnosis. Annual premium plus the full out-of-pocket maximum.
Most people find one plan wins the normal year and a different plan wins the bad year. Choosing between them is not a math problem; it is a question about how much financial risk your household can absorb in cash. If a $9,000 bad year would be a genuine crisis, either buy the plan with the lower ceiling or close the gap with hospital indemnity or accident coverage, which pays you directly and is usually far cheaper than the premium difference.
Two more things worth knowing
HSA eligibility. If the plan qualifies as a high-deductible health plan, you can fund a Health Savings Account with pre-tax dollars, and that money is yours permanently. For a household that can afford to fund it, that changes the comparison materially.
Timing. Outside annual open enrollment you generally need a qualifying life event — losing coverage, marriage, birth, adoption, or a permanent move — and the window is typically 60 days. If you know a change is coming, start before it happens.