Open enrollment is your annual chance to sign up for, change, or drop employer-sponsored health insurance and other benefits. For most people with job-based coverage, it falls in the fall, typically October to December, with new coverage starting January 1. Your employer sets the exact dates, so check with HR. Miss that window and you're locked in until next year, unless you have a qualifying life event like marriage, a baby, or losing other coverage. That triggers a Special Enrollment Period, and on the Marketplace you generally have 60 days from the event to act.
Important Deadlines and Timelines
Some deadlines are set at the federal and state level. Knowing them helps you plan, regardless of where you get coverage: through an employer, the Marketplace, or Medicare.
Employer-Sponsored Plan Deadlines
Most companies finalize their plans and premiums in Q3 and announce open enrollment dates in early Q4. The window is usually 2-4 weeks, so take the deadline seriously. If you do nothing, your medical coverage may renew automatically, but some benefits won't. Flexible spending accounts generally require an active election each year: skip open enrollment and your FSA contribution for the new year starts at zero. In some cases, you could lose coverage entirely.
Health Insurance Marketplace (ACA) Deadlines
If you buy through Healthcare.gov, open enrollment runs from November 1 to January 15. Enroll by December 15 if you want coverage to start January 1; enrollments after that begin February 1. State-run exchanges set their own dates, and some keep the window open longer. Covered California and New York State of Health, for example, accept applications through January 31.
Medicare Annual Enrollment Period
The Annual Enrollment Period (AEP) runs from October 15 to December 7 each year. Changes take effect January 1. It's your chance to switch plans, change Part D coverage, or move between Original Medicare and Medicare Advantage. If you're already in a Medicare Advantage plan, a separate window from January 1 to March 31 lets you switch to a different Advantage plan or move back to Original Medicare.
Medicaid and CHIP Enroll Year-Round
Medicaid and the Children's Health Insurance Program (CHIP) have no open enrollment window. You can apply any time of year, and coverage can begin as soon as you qualify. If your household income is at or below your state's limit, missing the fall deadlines does not lock you out. The Marketplace application also checks Medicaid and CHIP eligibility, so one application can route you to the right program even outside open enrollment. Don't skip Marketplace open enrollment assuming you will qualify for Medicaid. If your income lands just over the limit, you could be left without a way to buy subsidized coverage until the next open enrollment.
What Changes Can You Make During Open Enrollment?
Open enrollment is your chance to rethink your benefits. During open enrollment, you can usually:
- Enrolling in or Waiving Health Insurance: Signing up for the first time or opting out if you have alternative coverage.
- Switching Plan Types: Moving from a PPO to an HMO, a High-Deductible Health Plan (HDHP) to a more traditional plan, or vice-versa.
- Adding or Dropping Dependents: Covering a new spouse or child, or removing dependents who now have their own coverage.
- Electing Supplemental Benefits: Signing up for dental, vision, disability, or life insurance.
- Contributing to Tax-Advantaged Accounts: Setting or changing your contributions to a Health Savings Account (HSA), Flexible Spending Account (FSA), or Dependent Care FSA.
How to Prepare for Open Enrollment
Don't wait for the enrollment packet to arrive. Preparing early helps you pick the right coverage and maximize your benefits.
- Audit Your Previous Year's Healthcare Usage: Review how often you visited doctors, what prescriptions you filled, and any anticipated changes for the coming year (like planned surgery or having a baby).
- Evaluate Total Costs, Not Just Premiums: Compare deductibles, copays, coinsurance, and out-of-pocket maximums across plan options. The cheapest monthly premium may cost you more annually.
- Check Provider and Pharmacy Networks: Ensure your preferred doctors, hospitals, and medications are covered under any new plan you are considering.
- Maximize Linked Benefits and Incentives: Check whether your employer offers programs like WellthCare, which turns preventive health actions into automatic retirement contributions and spendable Store dollars.
- Complete All Elections by the Deadline: Submit your elections through the HR portal or with your benefits administrator before the stated deadline. Keep a confirmation for your records.
Open enrollment is more than an administrative task. It's a chance to plan your finances and health. WellthCare, the first Health-to-Wealth Benefit System, works alongside your existing health plan and gets used first, rewarding every preventive action with Store dollars and automatic retirement contributions. Know the deadlines, evaluate your options, and you'll get coverage that protects your well-being and builds your wealth throughout the coming year.