ACA open enrollment 2027 runs from November 1 to December 15, 2026 for people who use HealthCare.gov, and coverage that starts January 1, 2027 requires you to pick a plan inside that window. That is about a month shorter than recent years, when the HealthCare.gov deadline was January 15. Some state-run marketplaces set their own dates, but none may run past December 31.
This guide covers the dates that matter, what plans may cost, the documents to gather, and the steps to enroll without surprises. Details can shift, so confirm anything time-sensitive on Healthcare.gov or your state marketplace before you act.
Key Takeaways
- On HealthCare.gov, sign up between November 1 and December 15, 2026 for coverage beginning January 1, 2027.
- State-based marketplaces can use different dates, but they must start by November 1 and end by December 31.
- The federal cap on yearly out-of-pocket costs for 2027 marketplace plans is set at $12,000 for one person and $24,000 for a family, up from $10,600 and $21,200 in 2026.
- The larger premium subsidies that were available through 2025 have ended unless Congress restores them, so many households see a bigger bill than they did two years ago.
- Automatic renewal is not a plan review. Prices, networks and drug lists can all change.
ACA Open Enrollment 2027: Dates and Deadlines
Two sets of dates apply, depending on where you live. Most states rely on the federal platform at HealthCare.gov. A group of states, including California, New York and Washington, run their own exchanges and publish their own calendars.
| Marketplace type | Open enrollment window | Coverage starts |
|---|---|---|
| HealthCare.gov states | Nov 1 – Dec 15, 2026 | Jan 1, 2027 |
| State-based exchanges | Begin by Nov 1; end no later than Dec 31, 2026 (length varies) | Jan 1, 2027 for most plans |
Timing matters in a practical way. If you miss the window and have no qualifying life event, you generally cannot buy a marketplace plan until the next open enrollment. A rule that lets some low-income applicants enroll year-round has been paused or restricted under recent federal changes, so do not count on it.
A good plan is to set your own deadline in early December. That leaves room to fix a rejected document or a technical problem before the federal cutoff.
Special enrollment outside the window
Certain life events open a special enrollment period, usually 60 days from the event. Common examples include losing job-based coverage, moving to a new area, getting married, having a baby or adopting a child. You may be asked to upload proof, such as a termination letter from an employer plan.
Choosing to drop coverage, or missing a payment, does not count as a qualifying event.
What Marketplace Coverage Is Likely to Cost
Marketplace pricing has two layers: the monthly premium, and the costs you pay when you use care. Both change from year to year, and both depend on your age, ZIP code, tobacco use, and the plan you pick.
Final 2027 premiums are typically released by HealthCare.gov in late October, so the exact numbers for your county may not be visible until shortly before enrollment begins. Use the window-shopping tool on the official site to preview them.
Premiums and subsidies
The monthly premium you pay is the plan’s price minus any premium tax credit you qualify for. Credits are based on expected household income, not just on how much you earn today. The enhanced credits that removed the old income ceiling expired at the end of 2025, which means households above roughly 400% of the federal poverty level can again receive no help at all. If you are near that line, the exact amount of income you report can change your bill by a lot. Our explainer on health insurance for self-employed workers shows how freelancers can estimate that income.
Another change affects the end of the year. Starting with the 2026 tax year, there is no longer a cap on how much extra credit you must repay if you received more in advance than you were entitled to. That makes a careful income estimate more important than it used to be. Update your marketplace application mid-year if your income changes.
Deductibles, copays and the out-of-pocket maximum
Four metal tiers organize plans by how costs are split. Bronze plans carry lower premiums and higher deductibles. Silver plans sit in the middle. Gold and platinum plans charge more each month but cover more when you use care.
| Tier | Plan pays about | You pay about | Often fits people who… |
|---|---|---|---|
| Bronze | 60% | 40% | rarely need care and want protection from a big bill |
| Silver | 70% | 30% | qualify for cost-sharing reductions |
| Gold | 80% | 20% | use care regularly |
| Platinum | 90% | 10% | expect frequent or costly care |
The percentages are averages across a typical population, not a promise about your own bills. The federal limit on in-network cost sharing for 2027 is $12,000 for an individual and $24,000 for a family. Many plans set their own limit lower than that ceiling.
If you are curious about how that limit works day to day, see our guide to the pros and cons of high-deductible health plans.
Cost-sharing reductions: a silver-plan advantage
People with lower household incomes, generally up to about 250% of the federal poverty level, can qualify for cost-sharing reductions when they choose a silver plan. These reduce deductibles, copays and the out-of-pocket maximum. A silver plan with strong reductions can beat a gold plan for the right household, but only the silver tier carries this benefit.
A Worked Example
These figures are made up to show the logic, not to predict real prices. Imagine two shoppers choosing between a bronze and a silver plan.
Maria, 34, expects only a couple of checkups. Her bronze plan costs $280 per month after credits, and her silver plan costs $390. The $110 monthly gap adds up to $1,320 per year. Bronze makes sense only if she can cover the higher deductible if something unexpected happens.
Dan, 52, takes two daily prescriptions and sees a specialist four times a year. His silver plan costs more each month, but with copays instead of a large deductible, his expected yearly total is lower. The cheapest premium is not always the cheapest year.
How to Enroll, Step by Step
- Gather documents. You will want Social Security numbers, immigration documents if they apply, employer and income information, and details about any current coverage.
- Estimate your 2027 income. Include wages, self-employment profit, unemployment benefits and other taxable income. Use your best realistic figure rather than last year’s tax return.
- Create or update your account. Existing enrollees should log in and review the pre-filled application.
- Compare plans. Check the premium, deductible, out-of-pocket maximum, and whether your doctors and medicines are covered.
- Confirm eligibility results. The marketplace will tell you whether you qualify for credits, Medicaid or CHIP. If you may qualify for Medicaid, read how Medicaid income limits work.
- Select a plan and submit. You are not enrolled until the application is finished and you receive confirmation.
- Pay the first premium. Insurers usually require the first payment before coverage becomes active. Missing it can cancel the plan.
Free local help is available. Navigators and certified application counselors are trained to assist, and HealthCare.gov lists them by ZIP code.
Eligibility Changes Worth Knowing
Federal rules have tightened who can receive premium credits and how eligibility is checked. Beginning in 2027, credit eligibility is limited to U.S. citizens, lawful permanent residents and certain other immigrant categories, and additional income and identity verification steps are scheduled to phase in. If your immigration status or documents are complicated, a certified navigator can explain which rules apply to you before you start an application.
Catastrophic plans are another option worth a look. They are designed for people who are not eligible for credits and want protection from a very large bill, and federal officials have widened who can qualify through a hardship exemption. They carry high deductibles and limited coverage before that point, so they suit people who rarely use care and can handle a sizeable upfront cost. Ask the marketplace whether you qualify, and compare the total yearly exposure with a bronze plan before choosing.
Finally, remember employer coverage. If your job offers affordable, adequate insurance, you may not be eligible for marketplace credits at all. Compare the employee-only premium and plan quality, and ask your HR department what happens if you decline.
Compare Beyond the Premium
Doctors and prescription coverage are where plans differ most. Check the provider directory for each doctor you see, then verify with the office directly because directories are not always current. Search the plan’s drug list for every medicine you take and note the tier.
Network type matters too. HMO plans typically require you to stay in the network and get referrals, while PPO plans allow more flexibility at a higher price. Our article on PPO vs HMO vs EPO plans breaks this down.
Common Mistakes to Avoid
- Letting a plan auto-renew without checking. The same plan may cost more, drop your doctor, or move your medicine to a higher tier.
- Underestimating income. This can produce a larger tax bill later because the repayment cap is gone.
- Ignoring the deadline difference. Friends in another state may have more time than you do.
- Buying off-exchange by accident. Credits are only available through a marketplace.
- Treating short-term plans as equivalent. They are not ACA-compliant. Read short-term health insurance vs ACA plans before you decide.
Frequently Asked Questions
When does open enrollment for 2027 coverage start?
It begins November 1, 2026 in every state.
What is the last day to sign up on HealthCare.gov?
December 15, 2026 for coverage that begins January 1, 2027. State exchanges may extend into December, but no later than December 31.
Can I enroll after the deadline?
Generally only with a qualifying life event, such as losing other coverage, moving, marriage or the birth of a child. Medicaid and CHIP enrollment is year-round.
Do I have to do anything if I like my current plan?
You may be renewed automatically, but you should still log in. Premiums, networks and drug lists change annually, and your subsidy is recalculated using your current income information.
Are the bigger subsidies back for 2027?
The enhanced credits expired at the end of 2025. Congress could act, so check Healthcare.gov for the latest before you enroll.
What is the most I could pay out of pocket in 2027?
The federal ceiling is $12,000 for one person and $24,000 for a family on in-network essential health benefits. Premiums do not count toward it, and your specific plan may set a lower limit.
Can I get help choosing a plan for free?
Yes. Navigators, certified application counselors and state marketplace help lines assist at no charge. Be wary of anyone who asks you to pay for enrollment help.
What if I disagree with a coverage decision later?
You have the right to appeal. See our guide on how to appeal a denied claim.
Bottom Line
ACA open enrollment 2027 is shorter than many people remember, and with premium help less generous than in recent years, it pays to compare rather than coast. Mark December 15 on your calendar, gather your income details early, and check doctors and medicines before you click submit. For final prices, dates and eligibility, rely on Healthcare.gov or your state marketplace.
This article is for general informational purposes only and does not constitute medical, legal, or financial advice. Coverage rules, costs and guidelines change and vary by plan and state — consult a licensed healthcare professional or your insurer for guidance specific to your situation.
