The Affordable Care Act marketplace, sometimes called the health insurance exchange, is the government-run platform where individuals and families can compare and purchase health insurance plans that comply with ACA standards. If you don’t have access to employer-sponsored health insurance, you’re self-employed, or you’re between jobs, the marketplace is typically your primary option for comprehensive coverage. It also consolidates your subsidy application with your plan selection, meaning you apply for financial assistance and choose a plan in a single process rather than dealing with separate applications and reimbursements.
The federal marketplace operates at HealthCare.gov. As of 2025, seventeen states and the District of Columbia run their own state-based marketplaces with their own enrollment portals. If you live in California, New York, Massachusetts, Washington, Colorado, or several other states, you’ll shop on a state-run exchange instead of HealthCare.gov. In either case, the plans available must meet ACA requirements, the subsidy application process works the same way, and the metal tier structure for comparing plans is identical. The experience looks different, but the rules are the same.
Shopping the marketplace intelligently requires understanding how plans are organized, how subsidies work, and what questions to ask before selecting a plan. Too many people pick the cheapest premium and call it done. That almost never produces the right outcome. Here’s how to do it properly.
Creating Your Account and Starting an Application
Start by creating an account at HealthCare.gov or your state’s marketplace. You’ll need a valid email address, a unique username, and a password. If you already have an account from a prior year, log in rather than creating a new one. Returning applicants can update their existing application rather than starting from scratch, which carries over prior information and makes annual renewal faster. If you’ve forgotten your login credentials, use the account recovery options before creating a duplicate account, which can cause problems with subsidy calculations.
Once logged in, you begin an application that asks for household information. This includes your name, date of birth, Social Security number for U.S. citizens and eligible immigrants, your household size, and your expected income for the upcoming coverage year. The income figure is your Modified Adjusted Gross Income, which for most people is close to but not exactly the same as gross wages. Include all sources: wages, self-employment net income, Social Security benefits, alimony received, investment income, and any other taxable income. The accuracy of your income estimate matters because it determines your subsidy amount. If your actual income ends up significantly different from what you reported, you may owe money back or receive additional credits at tax time.
The application also asks whether anyone in your household is eligible for other coverage: employer-sponsored insurance, Medicare, Medicaid, or CHIP. Eligibility for other qualifying coverage can affect your marketplace subsidy eligibility. If your employer offers coverage that meets the ACA’s affordability standard, you generally can’t receive marketplace premium tax credits even if the marketplace plans are cheaper by comparison. If the offer doesn’t meet the affordability standard, you may be able to use the marketplace anyway. The calculation is specific to your situation.
Understanding Your Household and Income for the Application
The marketplace uses your tax household, not just the people in your physical home. For most people these align, but they don’t always. If you claim dependents on your taxes, they’re generally part of your marketplace household even if they don’t live with you. If you’re a dependent on someone else’s tax return, you may be part of their marketplace household. Understanding this distinction matters because household size affects both your subsidy calculation and your eligibility thresholds for Medicaid.
Income estimation for self-employed applicants deserves extra attention. The marketplace wants your projected net self-employment income for the coverage year, which is your gross business income minus your deductible business expenses. If your income fluctuates significantly, use a conservative estimate and plan to report changes during the year. You can update your income estimate mid-year if your circumstances change, which adjusts your advance premium tax credit accordingly. Reporting changes promptly is better than accumulating a large reconciliation at tax time.
Understanding Metal Tiers: Bronze, Silver, Gold, Platinum
All marketplace plans are categorized into four metal tiers: Bronze, Silver, Gold, and Platinum. The tiers indicate the average actuarial value of the plan, which is the percentage of average covered healthcare costs the plan pays across a typical population. Individual experiences vary widely, but the actuarial value gives you a useful framework for comparing the average generosity of coverage across plan options.
Bronze plans have an actuarial value of about 60%, meaning the plan covers about 60% of average costs and you cover roughly 40%. These plans have the lowest premiums but the highest cost-sharing when you actually use care. Deductibles in the $5,000 to $8,000 range are common. If you’re healthy, rarely use your insurance, and mainly want catastrophic protection in case of a major event, a Bronze plan minimizes your monthly cost. Many Bronze plans are also high-deductible health plans eligible for pairing with an HSA, which adds a tax-advantaged savings component to the equation.
Silver plans have an actuarial value of about 70% and carry a critical distinction from other tiers: cost-sharing reductions, known as CSRs, are only available with Silver plans. If your income is between 100% and 250% of the federal poverty level, you qualify for CSRs that increase a Silver plan’s actuarial value to as high as 94%, dramatically reducing your deductible and out-of-pocket costs while keeping premiums low through your premium tax credit. For lower-income buyers, Silver is almost always the best value tier because of CSR eligibility. Most people qualify for more assistance than they realize.
Gold plans cover about 80% of average costs with lower deductibles and more predictable cost-sharing at the point of care. People who use healthcare regularly and want smaller, more predictable bills often prefer Gold. Platinum plans cover about 90% of costs with the highest premiums and lowest cost-sharing. For people who know they’ll have very high healthcare utilization over the course of a year, Platinum can reduce total annual out-of-pocket spending even though the monthly premium is highest. The math usually only works out for Platinum if your anticipated out-of-pocket costs are very high.
Premium Tax Credits and How Subsidies Work
The premium tax credit is the primary financial assistance available through the marketplace. It reduces your monthly premium by an amount calculated based on your income, household size, and the cost of the benchmark Silver plan in your area. The credit was originally available only to people with income between 100% and 400% of the federal poverty level, but expanded eligibility rules through at least 2025 make credits available at higher income levels with no hard upper income cutoff for subsidy eligibility. Someone earning $80,000 or even $100,000 may qualify for some level of credit depending on household size and local benchmark plan costs.
In 2025, if your income falls between 100% and 150% of FPL, you may qualify for a $0 premium Silver plan after the credit is applied. Between 150% and 400% of FPL, you pay no more than a capped percentage of your income for the benchmark Silver plan. Benchmarks vary by geography, so actual available plans and credit amounts differ by location. The marketplace will calculate your specific credit based on your application information and show you the after-credit premium for each plan before you enroll. You don’t need to do the math yourself, but understanding what the credit represents helps you make better plan comparisons.
You can choose to receive the credit as an advance payment applied directly to your monthly premium, or you can pay the full premium throughout the year and claim the credit when you file your taxes. Most people take the advance payment option to reduce immediate cash flow demands. If your income changes during the year, report it to the marketplace promptly. Underreporting income means receiving too large an advance credit, which creates a repayment obligation when you file. Overreporting means you paid more in premiums than necessary and claim a larger credit at tax time. Keeping your income estimate current throughout the year produces the cleanest outcome.
Comparing Plans: What Actually Matters
Once the marketplace calculates your subsidy and shows you available plans, compare them meaningfully rather than sorting by premium and picking the cheapest. The after-credit premium is relevant, but it’s not the only number that matters. Look at the deductible (individual and family), the out-of-pocket maximum, the plan type (HMO vs. PPO vs. EPO and what that means for your provider access), whether your current doctors are in-network, and how your prescriptions are covered on each plan’s formulary.
Use the plan comparison tools on the marketplace to see cost-sharing for common services: primary care visits, specialist visits, generic drugs, preferred brand drugs, emergency care, and hospitalization. These comparisons make it easier to see how plans distribute costs across services you actually use. A plan with a $200 lower monthly premium that charges $80 per specialist visit versus $30 on a competing plan may cost more in total if you see specialists regularly.
Pay particular attention to prescription drug coverage if you take regular medications. The same drug can be at different formulary tiers on different plans, with dramatically different cost-sharing. A medication that’s a $10 generic on one plan might be a $80 preferred brand on another. For people on ongoing medications for chronic conditions, drug cost-sharing over 12 months can easily exceed the premium difference between plans. Look up each of your regular medications on every plan you’re seriously considering before making a final choice.
Plan Types: HMO, PPO, EPO, and POS
Marketplace plans come in different structural types that determine how you access care and what coverage you have outside the network. Understanding the type matters as much as the metal tier.
HMOs require you to choose a primary care physician who provides referrals to specialists and generally don’t cover out-of-network care except in emergencies. They tend to have lower premiums and tighter networks. PPOs allow you to see any provider without a referral, including out-of-network at higher cost-sharing, but carry higher premiums and are increasingly rare on the ACA marketplace. EPOs work like HMOs for network rules — no out-of-network coverage — but don’t require referrals, offering a middle ground between the two. Know the plan type before you enroll and confirm your key providers are in-network on the specific plan you’re considering.
Completing Enrollment and What Comes Next
Once you’ve selected a plan, confirm your selection and provide any requested documentation to verify income or immigration status promptly. For enrollees claiming premium tax credits, the IRS matches your reported income against prior-year tax records, and discrepancies trigger verification requests. Delays in responding can delay or disrupt your coverage.
Make your first premium payment on time. On the marketplace, your coverage doesn’t activate until your first premium payment is received by the insurer. Missing the first payment deadline cancels your enrollment, and you’d need to re-enroll and start again. The marketplace will communicate the payment deadline and your insurer’s payment methods when your enrollment is confirmed. Don’t let the first payment fall through the cracks after doing everything else right.
Working With a Broker or Navigator
Shopping the marketplace on your own is entirely possible, but working with a licensed health insurance broker or a certified enrollment navigator can meaningfully improve your outcome. Brokers who work with ACA marketplace plans are compensated by insurers through commissions built into the premium structure. You don’t pay extra for broker assistance; the commission comes out of the same premium whether you use a broker or enroll on your own. There’s no financial reason not to use one.
A good broker who knows your local market knows which plans have the strongest networks in your area, which insurers have a track record of responsive customer service, and which plan types are most popular with people in situations similar to yours. They can help you compare plans with drug coverage questions your medications raise, identify whether any network changes from last year affect your current providers, and flag income-related situations that might affect your subsidy eligibility in ways that aren’t obvious from the marketplace interface.
Certified navigators are another free resource, funded by federal or state grants, who help you complete the application without selling you a specific plan — particularly useful if your household situation is complex or your immigration status affects eligibility. Both brokers and navigators can be found through HealthCare.gov’s “Find Local Help” tool.
Marketplace coverage is powerful, and for many people it makes comprehensive health insurance genuinely affordable for the first time. Taking the time to use it correctly, with accurate income information, a thoughtful plan comparison, attention to provider and drug coverage, and a clear understanding of your subsidy, ensures you end up with coverage that actually serves your needs rather than the cheapest plan that creates frustration every time you need care. Spend the time. It’s worth it.