Open enrollment math has a trick built in. The premium is the number printed in big type, and it is the one number that tells you the least about your year. Here is a way to put the whole bill on one page before you pick a plan. It is educational only, so check your own plan documents for your own numbers.

Start with the total yearly cost, not the premium
HealthCare.gov describes a total cost estimate that generally adds up a few pieces. Here is the arithmetic, in order:
- Monthly premium times 12.
- The deductible, if you expect to use enough care to reach it.
- Copayments and coinsurance you expect to pay.
- The out-of-pocket maximum, as the worst-case ceiling.
Do that for each plan. Then compare the totals instead of the premiums. The same source says actual expenses will likely vary from the estimate, so treat the result as a planning range, not a promise.
The timing differs too. A premium is due every month whether or not you see a doctor. Deductibles and other cost-sharing arrive only when you get care. That is why a cheap premium can lose to a pricier one over twelve months if you expect to use a lot of care. It can also win if you barely touch the system. The arithmetic decides, not the sticker.
HealthCare.gov's total cost page walks through the same pieces.
How deductibles, coinsurance, and out-of-pocket maximums work together
The deductible is what you pay for covered services and prescription drugs before the plan pays its share. Most preventive services are the exception and are generally free. After the deductible, you usually pay a copayment (a flat fee) or coinsurance (a percentage) until you hit the out-of-pocket maximum.
HealthCare.gov's example uses a $1,500 deductible, 20% coinsurance, and a $5,000 out-of-pocket maximum. Run a $125 office visit through it:
- Deductible not met: you pay $125.
- Deductible met: you pay 20%, which is $25. The plan pays $100.
The out-of-pocket maximum is the most you spend on covered services in a year. Once you reach it, the plan pays 100% of covered services through the end of the coverage period, usually December 31. Coverage often starts January 1, so the counter resets each year.
For budgeting, that means a big bill in February can be followed by cheap months. It can also mean nothing happens and you pay only premiums. You do not get to pick. Also check whether your plan has a separate deductible or out-of-pocket maximum for prescription drugs, because the source says these can differ.
Plan categories show how costs are shared, not quality of care
Marketplace plans come in Bronze, Silver, Gold, and Platinum. The labels describe the average split of costs between plan and member:
- Bronze: plan pays about 60%, you pay about 40%.
- Silver: 70% and 30%.
- Gold: 80% and 20%.
- Platinum: 90% and 10%.
Bronze generally comes with a higher deductible. Gold and Platinum generally come with lower ones. The names say nothing about how good the care is, and they do not tell you which doctors are in network. Plan types like HMO, PPO, POS, and EPO shape which providers are covered and what out-of-network care costs. So checking your doctors is its own step.
Some people who choose Silver may qualify for cost-sharing reductions, which lower deductibles, copayments, and coinsurance based on income. HealthCare.gov lists the plan's share for those people at 73% to 94%, depending on the savings. Whether you qualify is an individual question, so use the application and the plan preview tool for your figures.
Health Savings Accounts can help pay cost-sharing, with rules to check
A Health Savings Account, or HSA, is a tax-favored account paired with certain high-deductible plans. HealthCare.gov says all Bronze and Catastrophic plans are HSA-compatible, along with some plans in other categories. Its preview tool has an eligibility filter. HSA money can generally pay deductibles, copayments, and coinsurance for qualified medical expenses. It generally cannot pay premiums. People mix that up often.
For 2027, a law firm summary of IRS Revenue Procedure 2026-24 reports these figures:
- HSA contribution limit: $4,500 self-only, $9,000 family. The catch-up amount for ages 55 and older stays $1,000.
- Minimum high-deductible plan deductible: $1,750 self-only, $3,500 family.
- Maximum out-of-pocket limit, excluding premiums: $8,700 self-only, $17,400 family.
I did not review the primary IRS text in full, so verify these against the IRS revenue procedure before relying on them. For the tax rules on contributions, withdrawals, and reporting, IRS Publication 969 is the reference, and a tax professional can speak to your situation.
Questions to ask and gaps this overview does not cover
Before you commit, write down answers to these:
- What is the most I might pay in a year, premium plus out-of-pocket maximum?
- How much of the deductible applies to the services and drugs I expect to use?
- Is there a separate drug deductible or maximum?
- Which of my providers are in network?
- Do I qualify for extra savings based on income?
Judging a plan by premium alone can understate what you owe when care is needed. The ceiling matters most if something goes wrong.
The sources behind this piece have gaps. They give no typical household out-of-pocket dollar figure, no monthly savings target, and no emergency fund method. They do not cover appealing a claim, disputing a bill, or getting help with medical debt. Employer plans and Medicare are outside their scope. For those, start with your plan documents, your state insurance regulator, and the Consumer Financial Protection Bureau.
Please seek a professional. This article is general information, not financial, tax or insurance advice. Please seek a licensed financial, tax or insurance professional about your own situation.














