Health insurance can feel overwhelming, especially if you are shopping for coverage on your own for the first time. The Affordable Care Act, often called the ACA, shaped much of how individual health coverage works in the United States today. This guide explains the key ideas in plain language so you can approach your options with more confidence.
What Is the Affordable Care Act?
The Affordable Care Act is a federal law signed in 2010. Among other things, it created Health Insurance Marketplaces where individuals and families can look for health coverage, set standards for what many health plans must include, and established forms of financial help that may lower costs for eligible households.
The ACA affects many types of health coverage, but people most often encounter it when buying an individual or family plan through a Marketplace. That is the focus of this guide.
What Is the Health Insurance Marketplace?
The Marketplace, sometimes called an exchange, is a place where individuals, families, and in some cases small businesses can review and enroll in health plans. Some states run their own Marketplace, while others use the federal platform at HealthCare.gov. The plans offered through a Marketplace come from private insurance companies that meet ACA standards.
When you apply through a Marketplace, you typically provide information about your household, income, and current coverage. That information is used to determine which plans are available to you and whether you may be eligible for financial help or for programs such as Medicaid or the Children's Health Insurance Program (CHIP).
Essential Health Benefits
One of the ACA's central features is the requirement that most individual and small-group plans cover a set of essential health benefits. Specific services and limits can vary by plan and by state, but the ten categories are:
Many preventive services, such as certain screenings and vaccines, may be covered without a copay or coinsurance when you see an in-network provider. The exact list depends on your age and other factors, so it is worth checking your plan's materials.
Protections for Pre-Existing Conditions
Under the ACA, Marketplace plans generally cannot refuse to cover you or charge you more because of a pre-existing health condition. A pre-existing condition is a health issue you had before your coverage began. Once coverage starts, plans also generally cannot limit benefits for that condition.
Premiums for Marketplace plans may still vary based on a limited set of factors, such as age, location, tobacco use, and whether a plan covers an individual or a family.
Understanding the Metal Tiers
Marketplace plans are grouped into categories named after metals. Each category describes, on average, how the plan and the enrollee share the costs of covered care. These categories describe cost sharing, not the quality of care.
Bronze
The plan is designed to pay about 60% of the average costs of covered care, with the enrollee paying the rest through deductibles, copays, and coinsurance. Monthly premiums are often modest, and out-of-pocket costs can be significant when care is needed.
Silver
The plan is designed to pay about 70% of average covered costs. Silver plans are also the plans tied to cost-sharing reductions for eligible enrollees, which are explained further below.
Gold
The plan is designed to pay about 80% of average covered costs. Monthly premiums tend to be more substantial, with out-of-pocket costs that are often more predictable for people who use care regularly.
Platinum
The plan is designed to pay about 90% of average covered costs. Availability of Platinum plans varies by area.
There are also catastrophic plans, which are generally available to people under 30 or to those who qualify for a hardship or affordability exemption. These plans usually have very high deductibles and are designed mainly to provide protection in serious situations, while still covering certain preventive services.
Key Cost Terms to Know
Your total health care costs are shaped by more than the monthly premium. These terms appear in nearly every plan description:
- Premium
- The amount you pay each month to keep your coverage active, whether or not you use care.
- Deductible
- The amount you pay for covered services before your plan begins to share costs for many services.
- Copayment
- A fixed dollar amount you pay for a covered service, such as an office visit or a prescription.
- Coinsurance
- Your share of the cost of a covered service, shown as a percentage, usually after you meet your deductible.
- Out-of-pocket maximum
- The most you would pay for covered, in-network services during a plan year. After you reach it, the plan generally pays 100% of covered in-network costs for the rest of that year. Premiums do not count toward this amount.
- Network
- The doctors, hospitals, and other providers a plan has agreements with. Using in-network providers generally keeps your costs more predictable.
Common Plan Types
Beyond metal tiers, plans also differ in how they handle networks and referrals. Common types include:
HMO (Health Maintenance Organization)
An HMO usually covers care from providers within its network, except in emergencies. Many HMOs ask you to choose a primary care provider and get a referral before seeing a specialist.
PPO (Preferred Provider Organization)
A PPO typically lets you see in-network providers without a referral and may also share some costs for out-of-network care, though usually at a different cost level.
EPO (Exclusive Provider Organization)
An EPO generally covers services only from in-network providers, except in emergencies, and may not require referrals for specialists.
POS (Point of Service)
A POS plan often asks you to choose a primary care provider and get referrals, while allowing some out-of-network care at a different cost level.
Financial Help That May Be Available
Depending on your household size and expected income for the year, you may be eligible for help paying for Marketplace coverage. Eligibility rules and amounts can change from year to year, so it is important to check current information when you apply.
Premium Tax Credits
A premium tax credit may lower your monthly premium for a Marketplace plan. You can choose to have some or all of the credit applied in advance to your premiums, or claim it when you file your federal tax return. If you take the credit in advance, the amount is reconciled on your tax return based on your actual income for the year. If your income ends up different from your estimate, the final credit amount may change.
Cost-Sharing Reductions
Cost-sharing reductions may lower the amount you pay for deductibles, copays, and coinsurance. They are available only with Silver plans and only for enrollees whose income falls within certain ranges.
Medicaid and CHIP
Your Marketplace application may also show whether you or your children may qualify for Medicaid or CHIP. Eligibility rules for these programs vary by state.
When You Can Enroll
Open Enrollment
Open Enrollment is the yearly period when anyone eligible can sign up for a Marketplace plan or make changes to an existing plan. It typically takes place in the late fall and winter, though exact dates can vary, and some state-run Marketplaces set their own timelines. Check the official Marketplace for your state to confirm the current dates.
Special Enrollment Periods
Outside of Open Enrollment, you may be able to enroll if you experience a qualifying life event. Examples may include:
- Losing other health coverage, such as job-based coverage.
- Getting married or divorced.
- Having a baby or adopting a child.
- Moving to a new area where different plans are offered.
- Certain changes in household income.
Special Enrollment Periods usually have a set window after the qualifying event, often 60 days, and you may need to provide documents to confirm your eligibility. Medicaid and CHIP applications can generally be submitted at any time of year.
Getting Ready to Apply
Having your information ready before you start can make the process smoother. Consider gathering:
- Basic details for each person in your household who needs coverage, including dates of birth.
- Social Security numbers or immigration documents for household members applying for coverage, as required by the application.
- Recent income information, such as pay stubs, W-2 forms, or records of self-employment income.
- Information about any job-based coverage available to your household, even if you do not plan to use it.
- A list of your current doctors, regular prescriptions, and any facilities you visit, so you can check plan networks and drug lists.
Questions to Ask Before You Choose a Plan
- Are my current doctors and preferred hospitals in this plan's network?
- Are my regular prescriptions on the plan's drug list, and at what cost level?
- What is the deductible, and which services are covered before it is met?
- What is the out-of-pocket maximum for an individual and for a family?
- Do I need referrals to see specialists?
- How would the total cost look over a full year, including premiums and expected care?
Each plan also provides a document called the Summary of Benefits and Coverage, which lays out costs and covered services in a standard format. Reading it can make it easier to understand what a specific plan includes before you enroll.
Trained navigators and assisters can help you understand your options and complete an application. You can find local help through the official Marketplace for your state.
Keeping Your Coverage Current
Once you are enrolled, it is important to report changes such as a new job, a change in income, a move, or a change in household size. Reporting changes promptly helps keep any financial help accurate and may open options for adjusting your coverage. Paying your premiums on time is also important to keep coverage active.
As the end of the plan year approaches, you may receive notices about renewal, updated premiums, or changes to your plan. Read these carefully. Even if you are happy with your current coverage, networks, drug lists, and costs can shift from one year to the next, so it is worth taking a fresh look before the new plan year begins.
Frequently Asked Questions
Final Thoughts
ACA coverage can seem complicated at first, but it becomes easier to navigate once you understand a few key ideas: what essential health benefits are, how metal tiers describe cost sharing, which cost terms affect your budget, and when you can enroll. Take your time, gather your information, and use official resources and trained assisters when you need help understanding how a plan fits your situation.
Disclaimer: This article is for general informational purposes only and does not constitute medical, legal, tax, or insurance advice. This website is not affiliated with HealthCare.gov, any state Marketplace, or any government agency. Plan availability, costs, eligibility rules, and enrollment dates vary by state and can change each year. For guidance specific to your situation, refer to your state's official Marketplace or consult a licensed insurance professional or tax advisor.