By 
ACA marketplace open enrollment for 2027 coverage opens around November 1, 2026. The traditional end date has been January 15, but CMS finalized rule changes that may shorten the window, so confirm the exact close date at HealthCare.gov before assuming you have until mid-January. If you are buying your own coverage as a freelancer, self-employed worker, or anyone without employer insurance, this is your annual window. Miss it and you are locked out until a qualifying life event or the next enrollment season.
Key Takeaways
- Open enrollment for 2027 ACA coverage begins ~November 1, 2026. Confirm the end date at HealthCare.gov — the window may be shorter than past years.
- Subsidies (premium tax credits) are available for incomes between 100% and 400% FPL under the reverted post-2025 rules.
- Above 400% FPL, no premium tax credit is available. Below 100% FPL in expansion states, Medicaid may cover you for free.
- You apply through HealthCare.gov or your state’s exchange, depending on where you live.
- Coverage enrolled by December 15, 2026 starts January 1, 2027. Later enrollments start February 1.
When Does ACA Marketplace Open Enrollment Open for 2027?
Open enrollment for ACA marketplace plans covering the 2027 plan year runs on this approximate schedule:
*CMS finalized rule changes that may shorten the ACA marketplace OEP window from its traditional January 15 close. Confirm the current end date at HealthCare.gov before the enrollment period opens.
Some state-run exchanges set their own deadlines, which can differ from the federal window. If you live in California, New York, Massachusetts, or another state with its own exchange, check your state site directly. A full list of state exchanges is at HealthCare.gov/marketplace-in-your-state.
Who Still Qualifies for ACA Subsidies for 2027 Coverage?
The enhanced premium tax credits that ran from 2021 through 2025 expired December 31, 2025 and had not been reinstated as of mid-2026. What remains is the original ACA premium tax credit, which is tied to income relative to the federal poverty level (FPL). For 2027 coverage, use your estimated 2027 income to gauge eligibility:
FPL figures update annually in January. The income thresholds for 2027 coverage will be based on 2027 FPL guidelines published by HHS, which typically come out early in the year. Use the HealthCare.gov subsidy calculator to get a real estimate once it is updated for the 2027 plan year.
For a deeper dive on why the subsidy rules changed and who lost what, see the ACA subsidy cliff explainer.
How Do You Apply for Marketplace Coverage? (Step by Step)
The application takes most people 20 to 45 minutes if you have your documents ready. Here is the process:
Step 1: Go to the right site. If your state uses the federal marketplace, go to HealthCare.gov. If your state runs its own exchange (California, New York, Massachusetts, Colorado, and others), go to your state’s site. HealthCare.gov will redirect you if needed.
Step 2: Create or log into your account. If you enrolled before, log in with your existing credentials. If new, create a Marketplace account with your email address.
Step 3: Start or update your application. You will answer questions about your household size, members who need coverage, and your estimated annual income for the coverage year. Income here is modified adjusted gross income (MAGI), not just your W-2 wages. If you are self-employed, use your expected net profit after deductions.
Step 4: Review your eligibility results. The system tells you whether you qualify for a premium tax credit, cost-sharing reductions, Medicaid, or CHIP (for children). These results guide which plan tier makes the most sense.
Step 5: Compare and choose a plan. You can filter by premium, deductible, and whether your doctors or prescriptions are covered. Plans are grouped into Bronze, Silver, Gold, and Platinum tiers. If you qualify for cost-sharing reductions, silver plans may give you much lower deductibles than the tier would otherwise suggest, making them worth a close look. For help deciding between plan types, see the open enrollment plan comparison guide.
Step 6: Enroll and pay your first premium. After selecting a plan you will confirm your choice and the insurer will contact you about your first payment. Coverage does not start until you pay. Mark your first premium due date and pay it on time.
What Documents Do You Need to Apply?
Have these ready before you start the application to avoid delays:
- Social Security numbers for everyone applying
- Employer and income information for every household member (pay stubs, W-2s, or a self-employment income estimate)
- Policy numbers for any current health insurance you have
- Immigration documents if applicable (green card number, visa number)
If you are self-employed, your income estimate matters more than it does for W-2 employees, because it directly affects your subsidy amount. If your actual income ends up higher than your estimate, you may owe back some or all of the advance credits when you file Form 8962 with your tax return. Estimate conservatively but realistically.
Should You Enroll by December 15 or Wait?
Enrolling by December 15, 2026 gets you coverage starting January 1, 2027, so you have no gap at the start of the year. Enrolling after December 15 (and before the OEP close) gets you February 1, 2027 coverage, leaving January uninsured. For most people, especially those with ongoing prescriptions or planned care in January, enrolling by December 15 is the better move. The only reason to wait is if you expect a significant income change in January that would affect your subsidy calculation.
What If You Miss Open Enrollment?
Missing open enrollment means you cannot get marketplace coverage until the next enrollment period, unless you experience a qualifying life event that triggers a Special Enrollment Period (SEP). Common qualifying events include losing other coverage, getting married, having a baby, moving to a new coverage area, and gaining or losing dependent status. Each event gives you a 60-day SEP window. The full list of qualifying events is in the SEP and qualifying life events guide.
State Exchanges vs. HealthCare.gov: Which Do You Use?
Fourteen states and DC run their own exchanges with their own websites and sometimes their own enrollment deadlines:
- State exchanges (examples): Covered California (CA), NY State of Health (NY), Connect for Health Colorado (CO), Massachusetts Health Connector (MA), Maryland Health Connection (MD), and others.
- Federal marketplace: HealthCare.gov covers the remaining states.
Plans and subsidies work the same way regardless of which exchange you use. Some state exchanges offer additional subsidies on top of federal credits, so residents of those states may pay even less than the federal calculator suggests. Check your state exchange specifically if you are in one of the states that runs its own marketplace.
Frequently Asked Questions
When does ACA open enrollment start for 2027?
Open enrollment for 2027 ACA marketplace coverage begins around November 1, 2026. The end date may be earlier than the traditional January 15 due to CMS rule changes; confirm at HealthCare.gov when enrollment opens.
Do I still qualify for ACA subsidies in 2027?
If your estimated 2027 income falls between 100% and 400% of the federal poverty level, yes. The enhanced credits that also covered households above 400% FPL expired at the end of 2025 and had not been reinstated as of mid-2026. Check HealthCare.gov for any legislative updates before the enrollment period opens.
Can I enroll in ACA coverage after open enrollment?
Only if you have a qualifying life event, such as losing other coverage, getting married, or having a child. That opens a 60-day Special Enrollment Period. Without one, you wait until the next open enrollment.
What is the income cutoff for ACA subsidies?
Under the current rules (enhanced credits expired), the subsidy ends at 400% of the federal poverty level. For a single person in 2026, that is roughly $60,240; for a family of four, roughly $124,800. FPL thresholds update annually, so check HealthCare.gov for the 2027 figures when they are published.
What does open enrollment mean for someone with employer coverage?
If you have employer-sponsored insurance, your open enrollment period is set by your employer, usually in the fall, and is separate from the ACA marketplace window. The ACA marketplace is only for people buying their own coverage outside of an employer plan.
Bottom line: ACA open enrollment for 2027 coverage opens around November 1, 2026. If your income is between 100% and 400% FPL you still qualify for premium tax credits, though they are smaller than in 2025. Enroll by December 15 for January 1 coverage, confirm the OEP end date at HealthCare.gov, and see the Open Enrollment 2026 Complete Guide for every other decision this season.
This article is for educational and informational purposes only and does not constitute insurance, financial, or legal advice. ACA marketplace rules, enrollment dates, subsidy eligibility, and income thresholds change annually and vary by state. Always verify current information at HealthCare.gov or your state exchange before enrolling. Free enrollment help is available at localhelp.healthcare.gov.
