What the ACA Marketplace Is
The Affordable Care Act (ACA) created a system of health insurance Marketplaces — sometimes called exchanges — where individuals and families can shop for and enroll in private health insurance plans. These plans meet federal minimum coverage standards, which means they must cover a defined set of essential health benefits.
The Marketplace is not a single government health plan. It is a shopping platform that connects consumers with approved private insurance plans. The plans available through the Marketplace vary by insurer, network, level of coverage, premium, and cost-sharing structure.
For most Americans, the main purpose of the Marketplace is to provide a structured, regulated place to find individual coverage — coverage not tied to an employer. When employer-sponsored coverage ends, the Marketplace becomes one of your primary options.
This is true for most workers — but the situation is different for workers covered by multiemployer health and welfare trust funds, industry plans, or union benefit funds. If you were covered through one of these plans, your coverage eligibility may be tied to hours worked rather than active employment with a single employer. The Marketplace may still be relevant to you if your fund coverage lapses or has a gap — but your first call should always be to your union benefits office or plan administrator to understand your fund's specific rules before assuming you need Marketplace coverage.
The official Marketplace is operated either by the federal government or by your state, depending on where you live. The federal Marketplace is accessed at HealthCare.gov. Many states have chosen to operate their own Marketplace platforms — these state-based Marketplaces are the place to go if your state has one. Using the official Marketplace matters because financial assistance — if you qualify — is only available through official Marketplace enrollment, not through purchasing a plan directly from an insurer.
Financial assistance for premiums — if you qualify based on income — is only available when you enroll through the official Marketplace. Purchasing a plan directly from an insurer outside the Marketplace does not provide access to that assistance.
Federal vs. State-Based Marketplaces
Whether you use the federal Marketplace at HealthCare.gov or your state's own Marketplace depends on where you live.
States that run their own Marketplace — These states have built and operate their own enrollment platform. If your state has a state-based Marketplace, that is where you enroll, not HealthCare.gov. Many state Marketplaces offer additional assistance programs, local enrollment help, and in some cases expanded coverage options. Examples include states like California (Covered California), New York (NY State of Health), and New Mexico (beWellnm).
States that use HealthCare.gov — Some states have chosen not to operate their own Marketplace. Residents of these states enroll through the federal platform at HealthCare.gov. Georgia and Pennsylvania are examples of states that use HealthCare.gov.
The starting point for finding your Marketplace: visit HealthCare.gov, which will either serve as your enrollment platform or redirect you to your state's Marketplace if your state operates one. You can also search for your state's Marketplace directly.
Both the federal and state-based Marketplaces offer plan comparison tools, eligibility screening, and enrollment. If you need in-person help, trained Navigators and Certified Application Counselors are available in most areas at no cost to you. HealthCare.gov has a tool to find local in-person help.
Special Enrollment Periods: The Window That Job Loss Opens
Normally, you can only enroll in a Marketplace plan during the annual Open Enrollment Period, which runs for a limited window each fall.
However, certain life events — called qualifying events — trigger a Special Enrollment Period (SEP). Job loss that results in losing health coverage is one of these qualifying events. This means you do not have to wait for open enrollment.
The Special Enrollment Period typically gives you 60 days from the date you lost coverage to enroll in a Marketplace plan. Some state-based Marketplaces may have different windows — check your specific Marketplace for the exact timeframe.
To enroll through an SEP, you will generally need to:
Verify that you experienced a qualifying event (loss of job-based coverage)
Provide documentation confirming your prior coverage ended — typically a notice from your employer or plan showing the end date
Complete enrollment through the official Marketplace within the SEP window
You can start the Marketplace application before your coverage actually ends. In many cases, you can lock in a coverage start date that begins when your prior coverage ends — avoiding a gap.
Do not wait until the last days of your SEP to start. Plan comparisons, documentation gathering, and the enrollment process itself all take time.
You can start your Marketplace application before your current coverage ends. Doing so allows you to potentially schedule a start date that matches your coverage end date — helping avoid a gap.
What the Marketplace Requires to Enroll
When you apply through the Marketplace under a Special Enrollment Period, you will need to provide certain information:
Personal information — name, date of birth, Social Security number (for yourself and anyone in your household enrolling), address
Income information — the Marketplace uses your projected household income for the coverage year to determine eligibility for financial assistance. This includes all income sources for your household.
Proof of qualifying event — documentation that your coverage ended. This is usually a letter or notice from your employer or plan showing the end date of your coverage. Keep any such documentation you receive from your employer.
Current immigration status, if applicable
The Marketplace application is free. Enrollment assistance from Navigators and Certified Application Counselors is also free. You are never required to pay for help enrolling.
If you are enrolling a family, you will need the same information for each person you are adding to the plan.
For the most accurate and current information about what you need to enroll, visit HealthCare.gov or your state's Marketplace website directly — these sources are always more current than any secondary resource.
Finding Free Enrollment Help
Navigating health insurance options under stress is not easy. Help is available at no cost.
Navigators — Federally funded, trained professionals who can help you understand your options, complete your Marketplace application, and enroll in a plan. They cannot recommend specific plans, but they can explain options clearly and help you through the process. Find a Navigator through HealthCare.gov's Local Help tool.
Certified Application Counselors (CACs) — Similar to Navigators, CACs are trained to assist with Marketplace enrollment. Many community health centers, libraries, and nonprofit organizations have CACs on staff.
State-based Marketplace help — If your state has its own Marketplace, it typically has its own enrollment assistance programs with local resources.
Your union's benefits office or plan administrator — If you were employed under a collective bargaining agreement, your union benefits office is an important first contact. Union benefits staff can help you understand: whether your health and welfare fund has continuation provisions, how hours-bank or hours-based eligibility works for your fund, whether the Marketplace is the right path for you or whether a fund gap is temporary, and where to direct specific questions about your multiemployer or industry plan. Some unions also have member assistance programs that can connect you with benefits counselors.
Enrollment assistance is always free. If someone is charging you to help you enroll in the Marketplace, that is a red flag.
Free enrollment help — Navigators and Certified Application Counselors — is available in most areas. HealthCare.gov has a local help finder tool. You are never required to pay someone to help you enroll.
