What Is Open Enrollment?
Open Enrollment is the annual period when you can sign up for a new health insurance plan or make changes to your existing coverage through the Health Insurance Marketplace. Outside this window, you can only enroll or switch plans if you qualify for a Special Enrollment Period (SEP) triggered by a life event such as marriage, birth of a child, or loss of other coverage.
Key Dates for 2025–2026
- Marketplace Open Enrollment: November 1, 2025 – January 15, 2026
- Employer-Sponsored Plans: Typically mid-October through mid-November (varies by employer)
- Medicare Open Enrollment: October 15 – December 7
Mark these dates on your calendar — missing the window means waiting another year (unless you qualify for a SEP).
What You Can Do During Open Enrollment
- Enroll in a Marketplace plan for the first time
- Switch to a different plan
- Change your coverage level (Bronze, Silver, Gold, Platinum)
- Add or remove dependents
- Update your income information to adjust subsidies
How to Choose the Right Plan
Step 1: Estimate Your Healthcare Needs
Think about the coming year. Do you expect regular doctor visits, ongoing prescriptions, or a planned procedure? A plan with higher premiums but lower out-of-pocket costs (Gold or Platinum) may save money if you use healthcare frequently. If you're generally healthy, a Bronze or Silver plan with lower premiums could be a better fit.
Step 2: Check the Provider Network
Make sure your preferred doctors, specialists, and hospitals are in the plan's network. Out-of-network care is significantly more expensive — or not covered at all in HMO plans.
Step 3: Review the Formulary
If you take prescription medications, check the plan's drug formulary to see which tier your medications fall under and how much you'll pay.
Step 4: Compare Total Costs
Don't just compare premiums. Calculate the total estimated annual cost:
Total Cost = (Monthly Premium × 12) + Expected Deductible Spending + Copays/Coinsurance
Step 5: Check for Subsidies
If your household income is between 100%–400% of the Federal Poverty Level, you may qualify for premium tax credits that lower your monthly cost. Silver plans also offer cost-sharing reductions for lower-income households.
Common Mistakes to Avoid
- Auto-renewing without reviewing — plan benefits, networks, and costs change every year. Always compare options.
- Choosing the cheapest premium — the lowest premium often means the highest deductible and out-of-pocket costs.
- Ignoring network changes — your doctor may drop out of a plan's network from one year to the next.
- Forgetting to update income — inaccurate income information can result in owing money at tax time if your subsidies were too high.