The Complete Guide to Getting ACA Health Insurance

Shopping for health insurance on your own can feel overwhelming, especially if you’ve always had coverage through an employer. The ACA marketplace might seem intimidating, but getting affordable coverage is easier than you think when you follow these straightforward steps.

Understanding What the ACA Marketplace Actually Is

The ACA marketplace is a government-run website where you shop for health insurance plans. Think of it like Amazon, except instead of buying products, you’re comparing and purchasing health insurance. Every plan sold on the marketplace meets minimum standards set by the Affordable Care Act, which means they all cover essential health benefits like doctor visits, hospital stays, prescriptions, and preventive care.

Here’s what makes the marketplace different from buying insurance directly from a company. First, the marketplace is the only place you can get premium tax credits and cost-sharing reductions, which are government subsidies that lower your costs. Second, all plans are standardized into metal tiers (Bronze, Silver, Gold, Platinum) that make comparison shopping much easier. Third, insurance companies can’t deny you coverage or charge you more because of pre-existing conditions when you buy through the marketplace.

The marketplace serves people who don’t get insurance through an employer, Medicare, or Medicaid. If you’re self-employed, work for a small business that doesn’t offer benefits, or your employer’s insurance is too expensive, the marketplace is designed for you. Even if you don’t qualify for subsidies, you can still use the marketplace to shop for comprehensive coverage.

Figuring Out If You Qualify for Financial Help

Most people using the marketplace get some form of financial assistance. The government offers two types of help: premium tax credits that lower your monthly payment, and cost-sharing reductions that lower what you pay when you actually get care.

Your eligibility depends on your household income compared to something called the federal poverty level. For 2025, a single person earning between roughly $15,000 and $60,000 typically qualifies for premium tax credits. For a family of four, that range is approximately $31,000 to $120,000. These aren’t hard cutoffs though—the amount of help you get gradually decreases as your income increases.

The marketplace uses your Modified Adjusted Gross Income to determine eligibility. Don’t let that term scare you. For most people, MAGI is just the adjusted gross income from line 11 of your tax return. If you’re employed with a regular paycheck, estimate what you’ll earn this year based on your current salary. If you’re self-employed or have variable income, look at last year’s tax return and adjust for any major changes you know about.

Cost-sharing reductions are available if your income falls between 100% and 250% of the poverty level and you choose a Silver plan. These subsidies reduce your deductible, copays, and out-of-pocket maximum, sometimes by thousands of dollars. A Silver plan with cost-sharing reductions often provides better coverage than a Gold plan without them.

Knowing When You Can Enroll

The marketplace has specific enrollment periods. Open enrollment typically runs from November 1st through January 15th each year. This is when anyone can sign up for coverage or switch plans. If you enroll by December 15th, your coverage starts January 1st. If you enroll between December 16th and January 15th, coverage starts February 1st.

Miss open enrollment and you’ll need a qualifying life event to enroll later. These include losing other health coverage, getting married or divorced, having or adopting a baby, or moving to a new area where different plans are available. You generally have 60 days from the qualifying event to enroll in marketplace coverage.

One important exception: if your income is very low (below 150% of poverty level), you may qualify for special enrollment opportunities throughout the year. Also, you can apply for Medicaid any time if your income is low enough—Medicaid doesn’t have enrollment periods.

Creating Your Account and Applying

Go to Healthcare.gov and click “Get Coverage” or “Create Account.” You’ll need your Social Security number, current address, and income information. The application asks about everyone in your household who needs coverage, including their ages, Social Security numbers, and whether they have access to other insurance.

The income questions ask you to estimate what you’ll earn this year. Include wages, tips, self-employment income, Social Security benefits, unemployment, and investment income. Don’t include child support or non-taxable income like gifts. If you filed taxes last year, that’s your best starting point for estimating this year’s income.

You’ll also report whether anyone in your household has access to employer coverage and how much that coverage costs. This matters because if your employer offers affordable coverage that meets minimum standards, you won’t qualify for marketplace subsidies even if you choose not to take the employer plan.

Once you complete the application, the marketplace immediately tells you what subsidies you qualify for and shows you all available plans in your area. This entire process takes about 15-20 minutes for most people.

Understanding Plan Categories and Choosing the Right One

All marketplace plans fall into metal tiers that indicate how costs are split between you and the insurance company. Bronze plans have the lowest monthly premiums but highest deductibles (often $6,000-$7,000). You pay more when you need care. Silver plans balance monthly costs and out-of-pocket expenses. Gold plans have higher premiums but lower deductibles and copays. Platinum plans have the highest premiums and lowest cost-sharing.

For most people, Silver plans offer the best value, especially if you qualify for cost-sharing reductions. Without subsidies, a Silver plan might have a $4,500 deductible. With cost-sharing reductions, that same Silver plan might have just a $1,500 deductible and lower copays for everything.

Here’s how to decide which tier makes sense for you. If you’re young and healthy, rarely see doctors, and mainly want protection from catastrophic costs, a Bronze plan might work. If you take regular medications, see specialists, or have ongoing health conditions, a Gold or Platinum plan probably saves you money despite the higher premium. If you’re somewhere in between, Silver is usually your best bet.

Don’t just look at monthly premiums when comparing plans. Calculate your total expected costs for the year by multiplying the monthly premium by 12, then adding your anticipated out-of-pocket costs based on how much care you typically use.

Checking Networks and Prescription Coverage

Before finalizing your plan choice, verify that your doctors and hospitals accept it. Insurance networks vary significantly even within the same metal tier and insurance company. Call your doctor’s office and ask specifically: “Do you accept [exact plan name] from [insurance company] through the ACA marketplace?” Don’t assume your doctor accepts the plan just because they take that insurance company in general.

Also check the plan’s prescription drug formulary to make sure your medications are covered. Each plan has a list of covered drugs and often requires generic versions when available. Some expensive medications need prior authorization. If you take specialty drugs, this step is critical because cost differences between plans can be enormous.

Enrolling and Paying Your First Premium

Once you’ve selected a plan, you’ll complete enrollment through the marketplace. The insurance company will then contact you directly about payment. Your first premium payment must reach the insurance company by the payment deadline (usually around January 1st for January coverage) for your coverage to become active.

Set up automatic payments if possible to avoid accidentally letting your coverage lapse. Missing a premium payment can result in losing your coverage, and you won’t be able to re-enroll until the next open enrollment period unless you have a qualifying life event.

Using Your Coverage and Reporting Changes

Once enrolled, you’ll receive an insurance card and information about your coverage. Take advantage of free preventive care right away—annual checkups, vaccinations, cancer screenings, and other preventive services cost you nothing even before you meet your deductible.

Throughout the year, report any changes to the marketplace that might affect your coverage or subsidies. Got a raise? Had a baby? Lost your job? These changes can impact how much subsidy you receive. Report them within 30 days to avoid owing money back at tax time or missing out on additional help you’ve become eligible for.

When you file taxes, you’ll use Form 8962 to reconcile the premium tax credits you received during the year with what you actually qualified for based on your final income. If you received too much, you’ll pay some back. If you received too little, you’ll get the difference as a tax refund.

Your Next Steps

Getting started is the hardest part. Create your marketplace account during open enrollment, answer the questions honestly, and see what you qualify for. If you need help, call the marketplace hotline at 1-800-318-2596 or find a local navigator who can walk you through the process for free. Affordable coverage is available—you just need to take that first step and apply.

Sources

  1. Healthcare.gov – Official ACA Health Insurance Marketplace
  2. Centers for Medicare & Medicaid Services – ACA Marketplace Overview
  3. Internal Revenue Service – ACA Premium Tax Credit Information
  4. Kaiser Family Foundation – ACA Marketplace Subsidy Calculator
  5. Medicaid.gov – ACA Medicaid Expansion Eligibility

 

Shopping for health insurance on your own can feel overwhelming, especially if you’ve always had coverage through an employer. The ACA marketplace might seem intimidating, but getting affordable coverage is easier than you think when you follow these straightforward steps.

Understanding What the ACA Marketplace Actually Is

The ACA marketplace is a government-run website where you shop for health insurance plans. Think of it like Amazon, except instead of buying products, you’re comparing and purchasing health insurance. Every plan sold on the marketplace meets minimum standards set by the Affordable Care Act, which means they all cover essential health benefits like doctor visits, hospital stays, prescriptions, and preventive care.

Here’s what makes the marketplace different from buying insurance directly from a company. First, the marketplace is the only place you can get premium tax credits and cost-sharing reductions, which are government subsidies that lower your costs. Second, all plans are standardized into metal tiers (Bronze, Silver, Gold, Platinum) that make comparison shopping much easier. Third, insurance companies can’t deny you coverage or charge you more because of pre-existing conditions when you buy through the marketplace.

The marketplace serves people who don’t get insurance through an employer, Medicare, or Medicaid. If you’re self-employed, work for a small business that doesn’t offer benefits, or your employer’s insurance is too expensive, the marketplace is designed for you. Even if you don’t qualify for subsidies, you can still use the marketplace to shop for comprehensive coverage.

Figuring Out If You Qualify for Financial Help

Most people using the marketplace get some form of financial assistance. The government offers two types of help: premium tax credits that lower your monthly payment, and cost-sharing reductions that lower what you pay when you actually get care.

Your eligibility depends on your household income compared to something called the federal poverty level. For 2025, a single person earning between roughly $15,000 and $60,000 typically qualifies for premium tax credits. For a family of four, that range is approximately $31,000 to $120,000. These aren’t hard cutoffs though—the amount of help you get gradually decreases as your income increases.

The marketplace uses your Modified Adjusted Gross Income to determine eligibility. Don’t let that term scare you. For most people, MAGI is just the adjusted gross income from line 11 of your tax return. If you’re employed with a regular paycheck, estimate what you’ll earn this year based on your current salary. If you’re self-employed or have variable income, look at last year’s tax return and adjust for any major changes you know about.

Cost-sharing reductions are available if your income falls between 100% and 250% of the poverty level and you choose a Silver plan. These subsidies reduce your deductible, copays, and out-of-pocket maximum, sometimes by thousands of dollars. A Silver plan with cost-sharing reductions often provides better coverage than a Gold plan without them.

Knowing When You Can Enroll

The marketplace has specific enrollment periods. Open enrollment typically runs from November 1st through January 15th each year. This is when anyone can sign up for coverage or switch plans. If you enroll by December 15th, your coverage starts January 1st. If you enroll between December 16th and January 15th, coverage starts February 1st.

Miss open enrollment and you’ll need a qualifying life event to enroll later. These include losing other health coverage, getting married or divorced, having or adopting a baby, or moving to a new area where different plans are available. You generally have 60 days from the qualifying event to enroll in marketplace coverage.

One important exception: if your income is very low (below 150% of poverty level), you may qualify for special enrollment opportunities throughout the year. Also, you can apply for Medicaid any time if your income is low enough—Medicaid doesn’t have enrollment periods.

Creating Your Account and Applying

Go to Healthcare.gov and click “Get Coverage” or “Create Account.” You’ll need your Social Security number, current address, and income information. The application asks about everyone in your household who needs coverage, including their ages, Social Security numbers, and whether they have access to other insurance.

The income questions ask you to estimate what you’ll earn this year. Include wages, tips, self-employment income, Social Security benefits, unemployment, and investment income. Don’t include child support or non-taxable income like gifts. If you filed taxes last year, that’s your best starting point for estimating this year’s income.

You’ll also report whether anyone in your household has access to employer coverage and how much that coverage costs. This matters because if your employer offers affordable coverage that meets minimum standards, you won’t qualify for marketplace subsidies even if you choose not to take the employer plan.

Once you complete the application, the marketplace immediately tells you what subsidies you qualify for and shows you all available plans in your area. This entire process takes about 15-20 minutes for most people.

Understanding Plan Categories and Choosing the Right One

All marketplace plans fall into metal tiers that indicate how costs are split between you and the insurance company. Bronze plans have the lowest monthly premiums but highest deductibles (often $6,000-$7,000). You pay more when you need care. Silver plans balance monthly costs and out-of-pocket expenses. Gold plans have higher premiums but lower deductibles and copays. Platinum plans have the highest premiums and lowest cost-sharing.

For most people, Silver plans offer the best value, especially if you qualify for cost-sharing reductions. Without subsidies, a Silver plan might have a $4,500 deductible. With cost-sharing reductions, that same Silver plan might have just a $1,500 deductible and lower copays for everything.

Here’s how to decide which tier makes sense for you. If you’re young and healthy, rarely see doctors, and mainly want protection from catastrophic costs, a Bronze plan might work. If you take regular medications, see specialists, or have ongoing health conditions, a Gold or Platinum plan probably saves you money despite the higher premium. If you’re somewhere in between, Silver is usually your best bet.

Don’t just look at monthly premiums when comparing plans. Calculate your total expected costs for the year by multiplying the monthly premium by 12, then adding your anticipated out-of-pocket costs based on how much care you typically use.

Checking Networks and Prescription Coverage

Before finalizing your plan choice, verify that your doctors and hospitals accept it. Insurance networks vary significantly even within the same metal tier and insurance company. Call your doctor’s office and ask specifically: “Do you accept [exact plan name] from [insurance company] through the ACA marketplace?” Don’t assume your doctor accepts the plan just because they take that insurance company in general.

Also check the plan’s prescription drug formulary to make sure your medications are covered. Each plan has a list of covered drugs and often requires generic versions when available. Some expensive medications need prior authorization. If you take specialty drugs, this step is critical because cost differences between plans can be enormous.

Enrolling and Paying Your First Premium

Once you’ve selected a plan, you’ll complete enrollment through the marketplace. The insurance company will then contact you directly about payment. Your first premium payment must reach the insurance company by the payment deadline (usually around January 1st for January coverage) for your coverage to become active.

Set up automatic payments if possible to avoid accidentally letting your coverage lapse. Missing a premium payment can result in losing your coverage, and you won’t be able to re-enroll until the next open enrollment period unless you have a qualifying life event.

Using Your Coverage and Reporting Changes

Once enrolled, you’ll receive an insurance card and information about your coverage. Take advantage of free preventive care right away—annual checkups, vaccinations, cancer screenings, and other preventive services cost you nothing even before you meet your deductible.

Throughout the year, report any changes to the marketplace that might affect your coverage or subsidies. Got a raise? Had a baby? Lost your job? These changes can impact how much subsidy you receive. Report them within 30 days to avoid owing money back at tax time or missing out on additional help you’ve become eligible for.

When you file taxes, you’ll use Form 8962 to reconcile the premium tax credits you received during the year with what you actually qualified for based on your final income. If you received too much, you’ll pay some back. If you received too little, you’ll get the difference as a tax refund.

Your Next Steps

Getting started is the hardest part. Create your marketplace account during open enrollment, answer the questions honestly, and see what you qualify for. If you need help, call the marketplace hotline at 1-800-318-2596 or find a local navigator who can walk you through the process for free. Affordable coverage is available—you just need to take that first step and apply.

Sources

  1. Healthcare.gov – Official ACA Health Insurance Marketplace
  2. Centers for Medicare & Medicaid Services – ACA Marketplace Overview
  3. Internal Revenue Service – ACA Premium Tax Credit Information
  4. Kaiser Family Foundation – ACA Marketplace Subsidy Calculator
  5. Medicaid.gov – ACA Medicaid Expansion Eligibility