ACA premiums depend on your income, age, location, and which plan you choose — there's no single price

The Affordable Care Act (ACA) doesn't set one price for insurance. Instead, what you pay depends on your household income, your age, where you live, and which of the four metal tiers you pick. Someone earning $30,000 a year in one state might pay $50 a month after tax credits, while someone earning $60,000 in another state might pay $300. The federal government subsidizes premiums for people earning between 100% and 400% of the federal poverty line, which is why income matters more than anything else.

The price you see before subsidies is called the "sticker price" or unsubsidized premium. After you account for tax credits (which the government calls "advance premium tax credits"), your actual out-of-pocket cost is usually much lower. You report your expected income when you enroll, and the government calculates how much of the premium they'll cover. If your actual income turns out different at tax time, you settle up on your tax return.

Key Takeaways

  • Your income is the biggest factor in what you pay — people earning less than 400% of the federal poverty line usually get tax credits that lower their monthly premium.
  • The four metal tiers (Bronze, Silver, Gold, Platinum) have different premiums and different out-of-pocket costs when you use care, so the cheapest premium isn't always the cheapest plan overall.
  • You enroll during open enrollment (usually November through January) or after a life event like losing other coverage, getting married, or having a child.
  • Your actual cost depends on your state, your zip code, and which insurance companies offer plans where you live.

How income affects what you pay each month

The federal poverty line changes every year. For 2024, it's roughly $15,000 for a single person and $31,000 for a family of four. The ACA gives tax credits to people earning between 100% and 400% of that line — so roughly $15,000 to $60,000 for an individual, or $31,000 to $124,000 for a family of four. These numbers shift annually.

If you earn less than 100% of the poverty line, you don't get a tax credit through the ACA, though you may be covered by Medicaid instead (which varies by state). If you earn more than 400% of the poverty line, you pay the full unsubsidized premium with no tax credit. The tax credit amount is calculated so that the second-cheapest Silver plan in your area costs roughly 2% to 8.5% of your income, depending on your exact earnings. The government pays the rest.

You estimate your income when you enroll. If you earn less than you predicted, you'll get a larger tax credit and owe nothing back. If you earn more, you may owe some of the credit back when you file taxes. This is why it's important to update your income if it changes during the year — you can adjust your tax credit mid-year rather than waiting until April.

The four metal tiers and their trade-offs

All ACA plans fall into one of four categories: Bronze, Silver, Gold, and Platinum. The names describe how costs are split between you and the insurance company. A Bronze plan has the lowest premium but the highest out-of-pocket costs (deductible, copays, coinsurance). A Platinum plan has the highest premium but the lowest out-of-pocket costs. Silver and Gold sit in the middle.

Bronze plans typically have a deductible of $5,000 to $7,000 for an individual and $10,000 to $14,000 for a family. You pay this amount out of pocket before insurance starts covering anything except preventive care. Silver plans usually have deductibles around $3,000 to $4,000 for an individual. Gold plans might have deductibles of $1,000 to $2,000. Platinum plans often have deductibles under $1,000 or none at all.

The right tier depends on how much medical care you expect to use. If you're young and healthy, Bronze might make sense because you'll pay a low premium and probably won't hit the deductible. If you have chronic conditions or take regular medications, Gold or Platinum might cost less overall because you'll hit the deductible and the lower copays and coinsurance will add up to less than the premium difference. Silver is the middle ground for most people.

How location and age change your premium

Insurance companies set different premiums for different geographic areas. A 40-year-old in rural Montana might pay $250 a month for a Bronze plan, while a 40-year-old in New York City might pay $350 for the same metal tier. These differences reflect local healthcare costs, competition among insurers, and state regulations. You can only buy a plan in the state where you live, and usually only from insurers that operate in your zip code.

Age is the other major factor. The ACA allows insurers to charge older people up to three times what they charge younger people for the same plan. A 25-year-old might pay $150 a month for a Silver plan, while a 60-year-old pays $450 for the identical plan. This is why tax credits matter so much for older workers — someone 60 years old earning $50,000 a year will usually get a large tax credit that brings their actual cost down significantly.

Tobacco use can also increase your premium by up to 50%, though some states cap this increase lower. If you quit smoking, you can update your information and your premium will drop at your next renewal.

What happens during open enrollment and special enrollment periods

You can only buy ACA insurance during open enrollment, which runs from November 1 through January 15 each year (though some states extend it). Outside that window, you need a may have access to life event to enroll: losing other health coverage, getting married, having a baby, moving to a new state, or a few other specific changes. Each event gives you 60 days to enroll.

When you enroll, you'll see the monthly premium for each plan. This is the sticker price before tax credits. You'll also see the deductible, copays, and coinsurance for each plan. After you choose a plan and report your income, the website will show you what your tax credit is and what you'll actually pay each month. You can change your plan or income estimate anytime during open enrollment, but once it closes, you're locked in until the next year unless you have a may have access to event.

Out-of-pocket costs beyond the monthly premium

Your monthly premium is only part of what you pay. You also have a deductible (the amount you pay before insurance kicks in), copays (a fixed amount per visit or prescription), and coinsurance (a percentage of the cost). The ACA caps total out-of-pocket costs at $9,450 for an individual and $18,900 for a family in 2024, but these numbers increase each year.

If you earn less than 200% of the poverty line and choose a Silver plan, you also get cost-sharing reductions. These lower your deductible, copays, and coinsurance beyond what the metal tier normally offers. This is one reason Silver plans are popular for lower-income people — the combination of a tax credit on the premium plus cost-sharing reductions can make them very affordable.

Preventive care (annual checkups, screenings, vaccines) is always free under the ACA, regardless of your deductible or metal tier. This applies to services recommended by the U.S. Preventive Services Task Force.

How to find your actual cost before enrolling

You can see what plans cost in your area without enrolling. Go to Healthcare.gov (or your state's marketplace if you live in one of the 13 states that runs its own exchange). Enter your zip code, age, household size, and expected income. The site will show you every plan available, the monthly premium, the deductible, and your estimated tax credit. It will also show you what you'll actually pay each month after the tax credit is applied.

You can compare plans side by side and see which doctors and hospitals are in each plan's network. You can also see what your costs would be at different income levels, which helps if you're not sure what you'll earn. This is all free information — you're not enrolling or committing to anything by looking.

Frequently Asked Questions

Can I get ACA insurance if I have a pre-existing condition?

Yes. The ACA prohibits insurers from denying coverage, charging more, or excluding conditions based on your health history. Everyone pays the same premium for the same plan in the same area, regardless of health status.

What if I can't afford any ACA plan even with a tax credit?

If the second-cheapest Silver plan costs more than 8.5% of your income after tax credits, you may be exempt from the penalty for not having insurance. You can also look into Medicaid, which is free or very low-cost in most states and has no premium at all.

Do I have to pay back my tax credit if my income changes?

Only if your actual income is higher than what you estimated. If you earn less, you keep the extra credit. If you earn more, you may owe some back when you file taxes, but there are limits on how much you have to repay if your income only slightly exceeded your estimate.

Can I switch plans during the year if I don't like mine?

Not unless you have a may have access to life event like losing coverage, moving, getting married, or having a baby. You're locked into your plan until the next open enrollment period, though you can change your income estimate if your earnings shift.

What's the difference between a health insurance marketplace and a health insurance company website?

The marketplace (Healthcare.gov or your state's site) shows you all available plans and calculates your tax credit. Insurance company websites only show their own plans and don't calculate subsidies. Always use the marketplace to enroll so you see all options and get your tax credit applied correctly.