ACA Open Enrollment 2026: What You Need to Know
Updated September 2026 · 8 min read
ACA Open Enrollment for 2026 coverage is a critical window for millions of Americans to get health insurance or change their plans. With premiums rising significantly and subsidy rules in flux, understanding your options has never been more important. This guide covers everything you need to know.
Key Dates for 2026
- ACA Open Enrollment: November 1, 2025 through January 15, 2026 (for most states using Healthcare.gov)
- Medicare Open Enrollment: October 15 through December 7, 2025
- State-based marketplaces: some states (California, New York, etc.) have different deadlines — check your state exchange
If you miss open enrollment, you can only enroll through a Special Enrollment Period triggered by a qualifying life event (job loss, marriage, having a baby, moving, etc.).
Premiums Are Rising in 2026
ACA Marketplace premiums are increasing significantly in 2026. According to KFF analysis, average premiums are rising approximately 26% nationally — 30% in Healthcare.gov states and 17% in state-run marketplaces. This is driven in part by the expiration of enhanced premium tax credits from the Inflation Reduction Act.
What this means for you: your current plan may cost significantly more next year, even if nothing about the plan changes. Shopping and comparing plans during open enrollment is more important than ever.
Understanding Premium Tax Credits (Subsidies)
The ACA provides premium tax credits to make coverage affordable for people with income between 100% and 400% of the Federal Poverty Level. The credit amount depends on your income, household size, and the cost of the benchmark plan (second-lowest-cost Silver plan) in your area.
Estimate your subsidy with our ACA Premium Subsidy Estimator.
How to Choose the Right Plan
ACA plans come in four metal tiers, each with different cost-sharing levels:
- Bronze: lowest premiums, highest out-of-pocket costs. Plan pays about 60% of costs. Best if you are young, healthy, and want catastrophic protection at the lowest monthly cost.
- Silver: moderate premiums and cost-sharing. Plan pays about 70% of costs. Silver plans also unlock Cost-Sharing Reductions (CSR) if your income is below 250% FPL — making them the best value for lower-income enrollees.
- Gold: higher premiums, lower out-of-pocket costs. Plan pays about 80%. Good if you use healthcare regularly.
- Platinum: highest premiums, lowest out-of-pocket costs. Plan pays about 90%. Best if you have significant, predictable medical expenses.
The Silver Plan Sweet Spot
If your income is between 100-250% of FPL, Silver plans offer a hidden benefit: Cost-Sharing Reductions. These automatically lower your deductible, copays, and out-of-pocket maximum — but only on Silver plans. A Silver plan with CSR can effectively provide Gold or Platinum-level coverage at Silver prices.
Checklist Before January 15
- Estimate your 2026 household income (this determines your subsidy)
- Check if your current doctors are in-network for plans you are considering
- Review your prescription drug needs — check each plan formulary
- Compare total annual cost (premiums + estimated out-of-pocket), not just monthly premiums
- Use our Out-of-Pocket Calculator to model your actual costs under each plan
- Consider pairing a high-deductible plan with an HSA for additional tax savings
Sources: IRS, CMS, KFF, Healthcare.gov. This article is for educational purposes only and does not constitute tax, legal, financial, or medical advice.