The Most Common Florida Health Insurance Mistakes — And How to Avoid Them

After working with Florida families through multiple open enrollment seasons, I've seen the same mistakes come up over and over. Most of them are completely avoidable — they happen because health insurance is genuinely complicated and because people are pressed for time during open enrollment. Here are the eight I see most often and how to avoid each one.

Mistake 1: Auto-Renewing Without Checking Your Doctors

This is probably the most common and most costly mistake. Healthcare.gov auto-renews you into your existing plan each year unless you actively change it — which sounds convenient but ignores a critical fact: networks change every year. Your primary care doctor, your cardiologist, your physical therapist — any of them could have left the network since you enrolled. The carriers renegotiate contracts annually, and providers come and go.

Before you let your plan renew, go to your carrier's website and verify that your top providers are still in-network for that specific plan. It takes ten minutes. If they've dropped out, you have time to shop for an alternative. If you don't check and they're gone, you'll discover it at your next appointment — with a much larger bill.

Mistake 2: Choosing Bronze When You Qualify for a CSR Silver Plan

This is the single biggest dollar mistake I see, and it affects a large portion of Florida's marketplace population. If your income falls between 100% and 250% of the federal poverty level, Silver plans come with Cost-Sharing Reductions (CSRs) — built-in subsidies that dramatically lower your deductible and out-of-pocket maximum. These don't exist on Bronze plans, period.

A CSR Silver plan at 150% FPL might have a $300 deductible and a $1,800 out-of-pocket maximum. The Bronze plan with a lower premium might have a $7,000 deductible. If you actually need healthcare — and at some point everyone does — the Bronze plan can cost you $5,000–$6,000 more out of pocket in a moderate-utilization year. The "cheaper" premium isn't cheaper once you need care.

Mistake 3: Not Checking the Drug Formulary

If you take brand-name medications regularly, check the formulary for every plan you're considering before you enroll. Drug tiers matter enormously. Tier 1 (generics) might cost $5/month. Tier 3 (non-preferred brand-name) might cost $90/month. Tier 4 (specialty drugs) can require 40–50% coinsurance on drugs that cost $500–$3,000 monthly — meaning your out-of-pocket on a single medication could exceed the plan's premium.

Once you're enrolled, you cannot switch plans mid-year because your drug is expensive. You're locked in until the next open enrollment. Checking formularies is not optional if you take any brand-name medications.

Mistake 4: Underestimating Income and Facing Repayment at Tax Time

Your premium tax credit is based on your estimated annual income. If you report a lower income than you actually earn, you'll receive a larger subsidy than you're entitled to — and you'll repay the difference at tax time. For people who significantly underestimate, this can be a $1,000–$3,000 surprise on their tax return.

The fix: estimate your income as accurately as you can, and update your income estimate on healthcare.gov any time your income trajectory changes meaningfully during the year. Mid-year updates adjust your going-forward subsidy rather than creating a lump-sum liability at filing time.

Mistake 5: Waiting for Open Enrollment When You Qualify for an SEP Right Now

I hear this constantly: "I'll wait for open enrollment in November." But if you've had a qualifying life event in the past 60 days — lost a job, turned 26 and aged off your parents' plan, got married, had a baby, moved to a new coverage area, lost Medicaid eligibility — you have a Special Enrollment Period right now. You don't have to wait.

The 60-day clock starts on the date of the qualifying event. Many people don't realize they qualify for an SEP and go uninsured for months unnecessarily. If you've had any of these life changes recently, check your SEP eligibility before assuming you have to wait.

Mistake 6: Picking an HMO Without Verifying Your Specialists Are In-Network

HMOs have narrower networks than PPOs, and they generally don't cover non-emergency out-of-network care at all. If you pick an HMO because the premium is lower but your gastroenterologist, dermatologist, or physical therapist isn't in the network, you're effectively paying out of pocket at full price for that care — or finding a different provider.

HMOs work great when all your providers are in the network and you're comfortable getting a referral from your primary care doctor to see specialists. They're the wrong choice when you have established specialist relationships across different health systems. Check the network before you choose the plan type.

Mistake 7: Ignoring the Out-of-Pocket Maximum

Most people compare plans on three numbers: premium, deductible, and copays. They often ignore the out-of-pocket maximum — the cap on how much you'll pay in a given year before the plan covers 100%. For 2026, ACA out-of-pocket maximums can run up to $9,450 for self-only coverage.

The out-of-pocket maximum is what stands between you and financial catastrophe in a serious medical event. A plan with a $3,000 deductible and a $6,000 OOP max is meaningfully different from one with a $3,000 deductible and a $9,000 OOP max — especially if you're facing a hospitalization, surgery, or cancer treatment. Add it to your comparison.

Mistake 8: Not Using a Licensed Agent

I'll be straightforward about this one: working with a licensed agent costs you nothing. The premium is identical whether you enroll through an agent or directly through healthcare.gov. Agents are compensated by the carrier. What you get from the agent relationship is someone who has already compared every plan available in your zip code this enrollment season, knows which formularies cover which medications, can verify your specific providers, and will flag the mistakes before they cost you money.

For complex households — multiple income sources, variable income, children with different coverage needs, a spouse with an employer plan — an agent can navigate the interaction between all these factors in ways that healthcare.gov's self-service tool can't. The comparison costs nothing. The mistakes it prevents can be worth thousands.