Most people pick a plan without knowing what actually drives the price, and end up overpaying every month — or worse, owing the IRS back in April. This page explains what matters: what moves your premium, what changed in 2026, how plans compare against each other, and the mistakes that cost the most money by year-end.
What actually decides your premium
Four variables. Three you cannot change. The fourth you can estimate well or badly, and almost the entire difference between a reasonable premium and one that bleeds you dry lives in that estimate.
- Age: insurers charge you more as you get older. A 10-year-old pays a fraction of what their 65-year-old grandparent pays on the same plan.
- ZIP code: where you live matters. Counties with less insurer competition have more expensive plans. In Florida, the gap between Miami-Dade and a rural Panhandle county is material.
- Household size: the plan is quoted per person, but the tax credit is calculated per household. A family of four qualifies for much larger credits than a single person with the same income.
- Estimated income: your current-year Modified Adjusted Gross Income (MAGI). It is the only variable you can tune. Estimate it correctly and you maximize the credit. Estimate it wrong and you overpay during the year or owe the IRS at tax time.
What changed in 2026 (and why it matters)
The enhanced credits that existed from 2021 through 2025 expired on December 31, 2025 and were not restored by Congress. The 400% of the federal poverty level (FPL) cap returned as the eligibility ceiling for premium tax credits. That is what changed on paper.
In practice, the confusion is costing people their coverage. According to CMS, 27% of 2026 marketplace enrollees picked a plan with a zero-dollar premium after the credit, and 60% pay less than fifty dollars per month. What changed is how much help you get and how far it reaches. If your income lands in the right range, real help is still there.
Bronze, silver and gold: what actually makes sense for you
Marketplace plans come in four “metals” based on how the cost is split between you and the insurer. More metal = higher monthly premium, less out-of-pocket when you use the plan. Less metal = the reverse.
- Bronze: lowest premium, highest deductible (often $7,000+ per person). Only makes sense if you are healthy, have no pre-existing conditions that need treatment, and can absorb the deductible all at once if something happens. A lot of people pick it because the monthly premium looks tempting.
- Silver: the middle. Lower deductible than bronze, moderate premium. The “standard” plan for most families. Tax credits are calculated against the second-cheapest silver plan in your county, which makes silver the most subsidized option in practice.
- Gold: high premium, low deductible. Makes sense if you use the insurance frequently (recurring doctor visits, monthly prescriptions, chronic condition). If you pay everything out of pocket in bronze, gold is usually the better deal.
- Platinum: only available in some counties. Very high premium, zero deductible. Only for someone who uses the insurance constantly and wants the best possible coverage.
Most people underestimate how much they will use the insurance. Before you pick bronze because the premium looks tempting, look at your medical history for the past two years and add up what you paid out of pocket. If it is more than $3,000 per year, silver or gold is usually the better deal even with the higher premium.
The ACA tax credit: how it is calculated
The Premium Tax Credit (PTC) reduces your monthly premium directly — it is not a refund at tax time, it is an instant discount applied to the insurer every month. To qualify:
- Your household income must be between 100% and 400% of the FPL (in counties without Medicaid expansion, there is no credit below 100%).
- You cannot have access to “affordable” employer coverage (9.5% of household income is the IRS threshold for “affordable,” although that number can change).
- You cannot qualify for Medicaid, Medicare, or military coverage.
- You must file a tax return (or file jointly with your spouse).
The credit amount is calculated against the second-cheapest silver plan in your county. If you buy a more expensive plan (gold or platinum), you pay the difference. If you buy a cheaper one (bronze), you save even more. If your income changes mid-year, you update your estimate on the Marketplace and the credit is recalculated automatically.
Deductible, copay, coinsurance: what you will actually pay
The monthly premium is just the beginning. When you use the insurance, three costs show up that most people do not understand until the first bill arrives:
- Deductible: what you pay before the plan starts paying. In bronze plans it can be $7,000-$9,000 per person. In silver, $3,000-$5,000. In gold, $1,000-$2,500.
- Copay: a fixed amount per service. A “$30 copay for a doctor visit” means every time you go to the doctor you pay $30 and the plan covers the rest.
- Coinsurance: a percentage of the bill you pay. “20% coinsurance after the deductible” means once you hit the deductible, you pay 20% of every bill and the plan pays 80%.
- Out-of-pocket maximum: the absolute cap on what you pay in a year. Once you hit this number (counting deductible + copays + coinsurance), the plan pays 100% of everything else. On 2026 ACA plans this cap sits around $10,500 per person.
The out-of-pocket maximum is the safety net. If you had a catastrophic year (surgery, hospitalization, long treatment), that number is the most you pay in total. It is the single most important figure for comparing low-premium plans.
Mistakes that cost money at year-end
I see the same mistakes every open enrollment. I list them here because they save real money:
- Underestimating your income: you receive more credit than you are entitled to during the year, and at tax time you pay the IRS back. For 2026 the repayment caps were eliminated: previously there was a maximum, now you return the full credit if your income was higher than you estimated. Estimate carefully and update if your situation changes (raise, bonus, freelance).
- Picking bronze without looking at the deductible: the low premium is seductive. If you end up using the insurance (and most people do), you pay more in total than you would on silver. Compare premium x 12 vs. silver premium x 12 + deductible.
- Not checking that your doctor is in-network: going out of network costs double or more. Before you enroll, look up your doctors in the specific plan’s directory (not the insurer’s general directory). Each plan has its own network.
- Forgetting to check prescription coverage: if you take medication regularly, verify it is on the plan’s formulary. Each plan has a list of covered drugs; if yours is not on it, you pay full retail price.
- Not updating income after material changes: new job, overtime, freelance, marriage, baby — all of that changes the credit calculation. Tell the Marketplace so they adjust your monthly premium and you do not end up owing the IRS.
Why a broker vs. buying direct on HealthCare.gov
You can enroll on your own on HealthCare.gov or through an agent’s platform. The premium is exactly the same: federal law prohibits an agent from charging the client more. The difference is service.
Buying on your own works fine for a simple profile: single person, no pre-existing conditions, no complicated doctor network, stable income. If your situation is more complex (family, medical conditions, variable income, specific doctors), a broker with access to several insurers can help you in three concrete ways:
- Compare plans that offer the same benefits but different doctor networks and drug formularies. The same “silver plan” can have very different networks between insurers.
- Apply credits correctly for variable income. Freelance, tips, bonuses, seasonal work — all count differently, and estimating wrong is expensive.
- Stay with you after enrollment: life changes, problems with a bill, appeals if a service is denied. That is work the website does not do.
I represent several insurers. When you tell me your situation, I look for the best option among the ones that would accept you, and I explain why I recommend one over the other if there is a material difference. If you prefer to enroll on your own, you lose nothing: the premium is the same and the agent does not keep a percentage of your premium — they receive a flat payment from the insurer, the same as if you had signed up on your own.
Last updated: 3 days ago