Key Takeaways
- Open enrollment is the one window each year when you can switch or adjust your health plan without a qualifying life event.
- Checking your provider network and drug formulary before re-enrolling can prevent costly surprises mid-year.
- Your cost structure — premium, deductible, copays, and out-of-pocket maximum — should reflect how much care you actually used this year.
- Life changes like a new dependent, new prescription, or a move may shift which plan type makes the most sense.
- Re-enrolling in last year's plan without reviewing it is one of the most common and avoidable enrollment mistakes.
Summary
22 items · 30–60 minutes
Why This Review Matters Every Single Year
Most people re-enroll in the same health plan year after year without checking whether it still fits. Plans change — and so do your circumstances. Premiums adjust, provider networks shrink or expand, formularies drop drugs, and your own health needs shift. Open enrollment is your once-a-year opportunity to course-correct, and skipping a real review can mean paying for coverage that no longer serves you.
This checklist walks you through every area worth examining before you click confirm. It's designed for employer-sponsored plans and Marketplace plans alike. For decisions about your specific situation, a licensed insurance agent or benefits counselor can help you weigh trade-offs — this checklist is general information, not personalized advice.
If you're unclear about how different plan structures — HMO, PPO, EPO, HDHP — affect what you'd pay and where you can get care, see our guide to choosing the right plan structure before working through this list.
Review Your Past Year's Usage
Account for Life Changes
Verify Your Provider Network
Check the Drug Formulary
Evaluate Cost Structure
Confirm Enrollment Details
Tools You'll Need Before You Start
Having the right documents in front of you makes this review much faster and more accurate. Pull these together before you sit down.
Last year's Explanation of Benefits (EOB) statements
Shows exactly what you used, what was covered, and what you paid out of pocket over the past plan year.
Current plan's Summary of Benefits and Coverage (SBC)
Standardized document that outlines your plan's deductibles, copays, coinsurance, and covered services.
New plan options' Summary of Benefits and Coverage
Lets you compare cost structures and covered services side by side with your current plan.
Your plan's drug formulary (current and new)
Confirms whether your prescriptions are covered and at which cost-sharing tier.
Provider directory for each plan under consideration
Verifies that your doctors, specialists, and hospitals are in-network before you enroll.
List of all household members' current prescriptions and providers
Ensures you check coverage for everyone who will be on the plan, not just yourself.
HSA account balance and contribution records (if applicable)
Helps you evaluate whether staying in an HDHP still makes financial sense given your savings and anticipated care needs.
Once you have these on hand, the checklist becomes a matter of comparing what you have against what you need — rather than guessing from memory.
Plan Documents Change Every Year
Don't assume last year's network, formulary, or cost-sharing terms still apply. Insurers update these annually, and a provider or drug that was covered last year may not be covered under the same plan name this year. Always verify using the current plan year's documents, not last year's materials.
Making a Final Decision
After working through the checklist, you should have a clearer picture of whether your current plan still makes sense or whether switching is worth the disruption. A few things to keep in mind as you finalize:
- Run the math on total annual cost, not just the monthly premium. Add up your estimated premiums, expected deductible spend, and typical copays for a realistic annual picture. Our article on comparing plans without leaving money on the table walks through this calculation in detail.
- Check whether an HSA-eligible HDHP still makes sense if you're currently enrolled in one. High-deductible plans pair well with health savings accounts for people who are generally healthy and want to build a tax-advantaged medical fund — but they can be costly if you have ongoing care needs.
- Don't forget other coverage you carry. If you're also reviewing auto or home policies this season, our insurance policy review checklist covers that ground separately.
Missing the Enrollment Window Has Real Consequences
If you don't actively enroll or waive coverage during open enrollment, most employer plans will auto-enroll you in your existing plan — but Marketplace plans may lapse entirely. Either way, you could be locked into coverage (or no coverage) for a full year. Mark your deadline, act early, and confirm your enrollment was processed.
This article is for general informational purposes only and does not constitute personalized insurance, financial, or legal advice. Coverage terms, costs, and eligibility vary by plan and provider. Always read your plan documents carefully and consult a licensed insurance professional before making enrollment decisions.