Marketplace insurance is health coverage you buy through the government's official shopping portal, HealthCare.gov (or your state's own marketplace website). These are the same plans people refer to as "Obamacare" or "ACA plans." The Affordable Care Act created the marketplace system in 2014 so that people without employer coverage could compare health plans side by side and, in most cases, get financial help paying for them.
If you've ever wondered "what is Obamacare?" -- it's this. The marketplace is where you go when your job doesn't offer health insurance, you're self-employed, you've recently lost coverage, or you're between jobs. About 21 million Americans were enrolled in marketplace plans as of early 2025, making it the largest non-employer source of private health insurance in the country.
The system can feel confusing because it involves metal tiers, premium tax credits, cost-sharing reductions, open enrollment windows, and income-based eligibility rules. This guide breaks all of it down in plain English.
The marketplace is a website, not an insurance company. It doesn't sell you a plan directly. What it does is collect plans from private insurers in your area and organize them into standardized tiers so you can compare apples to apples. It also calculates any subsidies you qualify for based on your income.
There are two types of marketplaces:
The plans themselves are real health insurance from companies like Blue Cross, Cigna, Aetna, United, Kaiser, Oscar, Ambetter, and Molina. The marketplace just makes it easier to shop for them and apply for financial assistance at the same time.
Every marketplace plan falls into one of four metal tiers. The tier tells you how costs are split between you and the insurance company. It has nothing to do with the quality of care or which doctors you can see.
| Tier | You Pay (Avg) | Insurer Pays | Monthly Premium | Best For |
|---|---|---|---|---|
| Bronze | 40% | 60% | Lowest | Healthy people who rarely see a doctor |
| Silver | 30% | 70% | Moderate | Most people, especially subsidy-eligible |
| Gold | 20% | 80% | Higher | Frequent doctor visits, ongoing prescriptions |
| Platinum | 10% | 90% | Highest | High medical needs, predictable costs |
A common mistake is picking the cheapest monthly premium (Bronze) without looking at the deductible. Bronze plans often carry deductibles of $7,000 to $9,000 per person. That means you pay the first $7,000+ of medical bills out of pocket before insurance kicks in for most services. If you end up in the ER or need surgery, a Bronze plan can cost you more total than a Gold plan with a higher premium but a $1,500 deductible.
Silver is the only tier that qualifies for cost-sharing reductions (CSRs). If your household income falls between 100% and 250% of the federal poverty level, a Silver plan doesn't just lower your premium -- it also lowers your deductible, copays, and out-of-pocket maximum. A Silver plan for someone at 150% FPL might have a $300 deductible instead of $3,500.
CSRs are only available on Silver plans. Not Bronze, not Gold. This is why most marketplace enrollees end up on Silver -- the effective value is far better than what the tier label suggests.
Quick tip: Premium tax credits are calculated based on the cost of the second-cheapest Silver plan in your area (the "benchmark plan"). Even if you pick a Bronze or Gold plan, your subsidy amount is still anchored to that Silver benchmark price.
The sticker price of a marketplace plan depends on your age, your zip code, whether you use tobacco, and how many people are on the plan. A 40-year-old in Austin, Texas will see different prices than a 40-year-old in Brooklyn, New York, even for the exact same insurance company.
But sticker price is rarely what you actually pay. Most marketplace enrollees receive premium tax credits that reduce the monthly cost. As of 2025, about 90% of people on HealthCare.gov plans received subsidies. The median enrollee paid around $100/month after credits.
The government caps what you're expected to pay for a benchmark Silver plan based on your income. If the actual plan costs more than that cap, the government pays the difference as a tax credit. You can take it in advance (applied to your monthly bill) or claim it when you file taxes.
Here's how the income caps break down for 2026:
| Income (% of FPL) | Approx. Income (Single) | Max Premium (% of Income) |
|---|---|---|
| 100-150% FPL | $15,060 - $22,590 | 0% - 4.0% |
| 150-200% FPL | $22,590 - $30,120 | 4.0% - 6.5% |
| 200-250% FPL | $30,120 - $37,650 | 6.5% - 8.5% |
| 250-300% FPL | $37,650 - $45,180 | 8.5% |
| 300-400% FPL | $45,180 - $60,240 | 8.5% |
| Above 400% FPL | $60,240+ | No cap (subsidy cliff) |
Notice the sharp cutoff at 400% FPL. Earn $60,241 as a single adult and you lose all subsidy eligibility. This is the ACA subsidy cliff -- one of the most criticized features of the current system. The enhanced subsidies from the American Rescue Plan had eliminated this cliff, but those expired at the end of 2025.
Enter your income and household size to see your estimated premium tax credit and monthly cost.
Check Your Subsidy →Every marketplace plan is required by law to cover 10 categories of care called "essential health benefits." These aren't optional features that vary by plan. They're federal minimums that apply to every Bronze, Silver, Gold, and Platinum plan sold on the marketplace.
The 10 essential health benefits are:
Preventive care is the one category with a special rule: it must be covered at zero cost to you, even before you meet your deductible. That includes annual physicals, flu shots, cancer screenings, blood pressure checks, cholesterol tests, and immunizations. This applies to all marketplace plans regardless of tier.
You can't buy marketplace insurance whenever you want. There's a fixed window each year called open enrollment. For the 2026 plan year on HealthCare.gov, open enrollment ran from November 1, 2025, through January 15, 2026.
State-run marketplaces sometimes extend their deadlines. California (Covered California) and New York (NY State of Health) typically allow enrollment through January 31. DC and a few others also run longer windows.
Outside of open enrollment, you can only sign up if you experience a "qualifying life event." These are changes in your circumstances that make it unreasonable to wait for the next open enrollment window:
You generally get 60 days from the qualifying event to enroll. After that, you have to wait for the next open enrollment period. Losing job-based coverage is by far the most common trigger -- if you quit, get laid off, or your hours get cut below the employer's threshold, that starts your 60-day window.
The marketplace isn't your only option. Depending on your situation, you might qualify for employer coverage, Medicaid, Medicare, or CHIP. Here's how they compare:
| Coverage Type | Who Qualifies | Avg Monthly Cost | How to Enroll |
|---|---|---|---|
| Marketplace (ACA) | Anyone without employer/government coverage | $100-$500 after subsidies | HealthCare.gov or state exchange |
| Employer-sponsored | Employees offered benefits | $100-$300 (employee share) | Through your employer |
| Medicaid | Low income (varies by state) | $0 in most states | State Medicaid office |
| Medicare | Age 65+ or qualifying disability | $175+ (Part B premium) | SSA.gov or local SS office |
| CHIP | Children in families above Medicaid but below ~300% FPL | $0-$50 | State CHIP program |
One thing that trips people up: if your employer offers "affordable" coverage (defined as costing less than 8.5% of your household income for employee-only coverage), you're generally not eligible for marketplace subsidies. You can still buy a marketplace plan, but you'd pay full price. This is called the "employer firewall."
For a deeper look at the Medicaid vs. marketplace question, see our guide on Medicaid vs. marketplace insurance eligibility.
The marketplace is the right choice for a specific set of people. If any of these describe your situation, start there:
If your income falls below 100% of the federal poverty level in a state that hasn't expanded Medicaid, you may fall into the "coverage gap" -- too poor for marketplace subsidies but not eligible for your state's Medicaid program. Twelve states still haven't expanded Medicaid as of early 2026. Our Medicaid eligibility tool can tell you where your state stands.
Our free calculator estimates your subsidy, monthly premium, and whether you qualify for cost-sharing reductions.
Check Your Subsidy →The application process takes 15 to 45 minutes depending on your household size. Here's what to have ready before you start:
1. Create an account on HealthCare.gov (or your state's exchange). You'll need a username, password, and answers to security questions.
2. Fill out the application. You'll enter household size, income, and whether anyone has access to other coverage. The system uses this to calculate subsidy eligibility in real time.
3. Review your eligibility results. The marketplace will tell you whether you qualify for premium tax credits, cost-sharing reductions, Medicaid, or CHIP. If you qualify for Medicaid, your application may be forwarded to your state's Medicaid agency automatically.
4. Compare and pick a plan. You'll see all available plans in your area sorted by metal tier. Filter by monthly premium, deductible, provider network, or prescription drug coverage. Pay attention to whether your doctors are in-network.
5. Enroll and pay your first premium. Coverage starts on the first of the following month (if you enroll by the 15th) or the first of the month after that. Your plan isn't active until the first premium payment is processed.
Yes. "Obamacare," "ACA plans," "marketplace insurance," and "exchange plans" all refer to the same thing -- health insurance purchased through the exchanges created by the Affordable Care Act. The official term is "qualified health plan" (QHP) sold through a Health Insurance Marketplace.
You can, but you probably won't get subsidies. If your employer offers coverage that meets minimum value and affordability standards (employee-only premium below 8.5% of household income), you're locked out of premium tax credits. The exception: if your employer's plan is genuinely unaffordable or doesn't meet minimum coverage requirements, you may qualify for subsidies anyway.
The federal individual mandate penalty was reduced to $0 starting in 2019. At the federal level, there's no fine for being uninsured. However, California, Massachusetts, New Jersey, Rhode Island, Vermont, and DC have their own state-level mandates with penalties ranging from $695 to 2.5% of income. Check your state's rules.
Marketplace plans are tied to the state and county where you live. If you move to a new state, you need to cancel your current plan and enroll in one through your new state's marketplace. Moving across state lines is a qualifying life event, so you'll get a 60-day special enrollment period.
Your actual Obamacare cost depends on four things: your age, your location (zip code), tobacco use, and how many people are on the plan. The insurance company sets the sticker price based on those factors. Then the government applies your premium tax credit based on your income, reducing what you actually pay each month.
Marketplace insurance is private health coverage bought through a government-run shopping portal. Plans are standardized into four metal tiers so you can compare them, and most enrollees get premium tax credits that cut the monthly cost. Silver plans offer extra cost-sharing reductions for lower-income households. Open enrollment happens once a year, with special enrollment periods for qualifying life events like job loss or a new baby.
The biggest variable in what you'll pay is your income. A family earning $40,000 will see a very different monthly premium than a family earning $80,000 -- even for the exact same plan in the same zip code. That's why running the numbers before you shop is the most important step you can take.
Last updated March 2026. For state-by-state premium data, see our Obamacare premiums guide.