Expert Summary
- ACA Marketplace Open Enrollment for 2027 coverage runs November 1 – January 15, 2027. To have coverage start January 1, you must enroll by December 15, 2026.
- Enhanced subsidies from the American Rescue Plan Act (ARPA) have been extended — many households earning up to 400% of the federal poverty level pay no more than 8.5% of income for benchmark coverage.
- Special Enrollment Periods (SEPs) allow enrollment outside open enrollment for qualifying life events — losing job-based coverage, getting married, having a baby, or moving to a new coverage area.
Missing the ACA open enrollment deadline means you could go without health insurance for months — and face significant exposure to medical costs. Here are all the key dates, subsidy rules, and enrollment steps for the 2026–2027 coverage period.
2026 Key Dates at a Glance
| Event | Date |
|---|---|
| Open Enrollment begins (2027 coverage) | November 1, 2026 |
| Deadline to start coverage January 1, 2027 | December 15, 2026 |
| Open Enrollment ends | January 15, 2027 |
| Coverage start for December 16–January 15 enrollees | February 1, 2027 |
| Medicare Open Enrollment | October 15 – December 7, 2026 |
| Medicaid/CHIP enrollment | Year-round (no deadline) |
State-run exchanges may have different deadlines. States with their own marketplaces (California, New York, Massachusetts, Colorado, and others) sometimes extend enrollment past the federal deadline. Check your state's exchange if you do not use healthcare.gov.
What Changed for the 2026 Enrollment Period
Enhanced Subsidies Continue
The American Rescue Plan Act (2021) expanded premium tax credits significantly. These enhancements were extended through 2025 by the Inflation Reduction Act and are expected to continue for 2026–2027 coverage (pending Congressional action as of mid-2026).
Key enhancement: Before ARPA, subsidies capped out at 400% of the federal poverty level (FPL). The enhancement removes this cap — households above 400% FPL can now qualify for subsidies if their benchmark plan premium exceeds 8.5% of household income.
2026 Federal Poverty Levels (48 contiguous states):
| Household Size | 100% FPL | 138% FPL (Medicaid threshold) | 400% FPL |
|---|---|---|---|
| 1 person | $15,060 | $20,783 | $60,240 |
| 2 people | $20,440 | $28,207 | $81,760 |
| 3 people | $25,820 | $35,632 | $103,280 |
| 4 people | $31,200 | $43,056 | $124,800 |
Zero-Premium Plans Still Available
Many households at 100–150% FPL qualify for $0-premium silver plans after enhanced subsidies. Even households earning 200–300% FPL often find benchmark plans well under $100/month after subsidies.
How ACA Subsidies Work
Premium Tax Credits (PTCs)
PTCs reduce your monthly premium. They are calculated based on the gap between what you are expected to pay (based on income) and the benchmark plan cost in your area.
Example: A 40-year-old individual earning $50,000 in ZIP 10001 (New York City):
- Benchmark silver plan cost: ~$590/month
- Expected contribution (8.5% of income): $354/month
- Monthly premium tax credit: ~$236/month
- What you actually pay: ~$354/month
Cost-Sharing Reductions (CSRs)
Available at 100–250% FPL. Must enroll in a silver plan to receive them. CSRs lower your deductible, copays, and out-of-pocket maximum:
| Income | Silver Plan Actuarial Value | Effective Coverage Level |
|---|---|---|
| 100–150% FPL | 94% | Near-platinum coverage |
| 150–200% FPL | 87% | Near-gold coverage |
| 200–250% FPL | 73% | Better-than-standard silver |
| 250%+ FPL | 70% | Standard silver |
If you qualify for CSRs, silver plans are almost always the best value — you get gold-equivalent coverage at silver-equivalent premiums.
Step-by-Step Enrollment Process
Step 1: Gather Your Documents
- Social Security numbers for all household members
- Proof of income (prior year tax return, pay stubs, or estimate for the upcoming year)
- Current health insurance information (if switching plans)
- Immigration documents (if applicable)
Step 2: Create or Update Your healthcare.gov Account
- Visit healthcare.gov (federal marketplace) or your state exchange
- Update your income estimate for the upcoming year — this determines your subsidy amount
- Report any life changes from the previous year
Step 3: Compare Plans
ACA plans are organized by metal tier:
| Tier | You Pay | Insurance Pays | Best For |
|---|---|---|---|
| Catastrophic | Highest out-of-pocket | Lowest | Under 30 or hardship exemption only |
| Bronze | High deductible | 60% | Healthy, emergency-only use |
| Silver | Moderate | 70% | Most people; required for CSRs |
| Gold | Lower deductible | 80% | Regular healthcare users |
| Platinum | Lowest out-of-pocket | 90% | High healthcare use |
Compare plans on total cost (premium + estimated out-of-pocket), not just premium alone. A $50 cheaper premium with a $2,000 higher deductible is not a better deal if you use healthcare regularly.
Step 4: Check Your Doctors Are In-Network
Before selecting a plan, verify your current primary care physician, specialists, and hospital system are in-network. Out-of-network costs on ACA plans can be substantial.
Step 5: Enroll and Confirm
Complete enrollment and save your confirmation number. Verify your coverage is active at the start date. Set up automatic premium payments to avoid a coverage lapse.
Special Enrollment Period (SEP) Guide
If you miss open enrollment, you can still get coverage with a qualifying life event:
| Qualifying Event | SEP Window |
|---|---|
| Losing job-based coverage | 60 days from loss |
| Getting married | 60 days from marriage |
| Having or adopting a child | 60 days from birth/adoption |
| Moving to new coverage area | 60 days from move |
| Gaining citizenship | 60 days |
| Aging off parent's plan (turning 26) | 60 days from birthday |
| Release from incarceration | 60 days |
Document your qualifying event — you will need to upload proof during SEP enrollment. For job loss, this is typically a COBRA election notice or letter from employer confirming coverage end date.
Health insurance basics: premiums, deductibles, copays and networks explained →
What are the ACA open enrollment dates for 2026?
The ACA Marketplace Open Enrollment for 2027 coverage runs November 1, 2026 through January 15, 2027. To have coverage effective January 1, 2027, you must enroll by December 15, 2026. Enrolling between December 16 and January 15 starts coverage February 1, 2027.
Do I qualify for ACA subsidies in 2026?
You may qualify for premium tax credits if your household income is between 100% and 400% FPL. Enhanced subsidies from the ARPA extension cap benchmark plan premiums at no more than 8.5% of household income regardless of income level above 400% FPL — meaning some households earning $100,000+ still qualify. Use healthcare.gov's calculator to estimate your subsidy.
What is a Special Enrollment Period and what qualifies?
A Special Enrollment Period lets you enroll in or change health insurance outside Open Enrollment if you experience a qualifying life event. Qualifying events include losing job-based coverage, getting married, having or adopting a child, moving to a new coverage area, or aging off a parent's plan. You generally have 60 days from the qualifying event to enroll.