Why Did My Premium Go Up This Year?

Why Premiums Go Up Every Year

If your health insurance premium increased this year, you're not alone — and it's not arbitrary. Premium changes reflect real shifts in how much healthcare costs, how many people in your plan's risk pool used services, and what decisions carriers made about their business in your area. Understanding why helps you make better decisions about what to do next.

Factor 1: Healthcare Cost Inflation

The cost of medical services in the US rises faster than general inflation. Hospital charges, physician fees, pharmaceutical prices, and diagnostic testing costs all increase year over year. When these underlying costs go up, insurance carriers pass a portion of that increase to policyholders through higher premiums. This is the baseline factor behind virtually every year's rate increase, regardless of anything else going on in the market.

Factor 2: Your Age

Under the ACA, carriers can charge older enrollees up to 3 times the premium of younger enrollees for the same plan (this is called age rating). This means that even if nothing else changes, your premium typically increases each year simply because you're a year older. The increase accelerates as you approach your 50s and 60s. For people in their late 50s or early 60s, age rating can be a significant driver of year-over-year increases.

Factor 3: Risk Pool Dynamics

Health insurance works by pooling risk. If the people enrolled in your carrier's plans used more healthcare services than the carrier anticipated when it set last year's rates, the carrier will increase rates to compensate. This can happen because more people in the pool got sick, used more prescriptions, had surgeries, or had babies. Carriers file rates based on their claims experience, so a plan that had high utilization one year often sees above-average increases the next.

Factor 4: Florida Carrier Market Shifts

Florida's ACA Marketplace has seen significant carrier movement over the years. When a major carrier exits a county or the state — as has happened at various points with national carriers pulling back from less profitable markets — the remaining carriers may see an influx of new members. This reshuffling can destabilize risk pools and lead to larger-than-average rate increases in certain counties.

The reverse is also true: when new carriers enter a market (as has happened in Florida with regional carriers like Oscar and Ambetter expanding their footprints), competition can hold rate increases in check. Florida has benefited from increasing carrier competition in recent years, particularly in major metro areas like Miami-Dade, Broward, and Hillsborough counties.

Factor 5: Regulatory and Policy Changes

Changes in federal policy — including the level of cost-sharing reduction reimbursements, changes to the individual mandate, and adjustments to risk corridor programs — can affect premium rates. Carriers price uncertainty into their rates. When policy is unsettled, carriers often build a larger cushion into their premiums.

How Subsidies Offset Increases

Here's the part most people don't realize: if you receive a premium tax credit (subsidy), your actual out-of-pocket premium is often protected from rate increases in ways that unsubsidized buyers are not.

The premium tax credit is calculated as the difference between the benchmark plan cost in your area and a set percentage of your income. When premiums go up, the benchmark plan cost rises, which means the tax credit also rises to keep pace. In practical terms, many subsidized enrollees see little to no change in what they actually pay each month, even when the gross premium increases significantly.

If you're currently unsubsidized and your premium has increased significantly, it may be worth checking whether your income now puts you within the subsidy eligibility range. Income limits have been expanded in recent years.

What You Can Do About It

You are not locked into your current plan forever. During open enrollment each year, you can switch carriers, change plan tiers, or change network types — and doing so actively (rather than auto-renewing) often results in meaningful savings. Here's what to do:

• Compare all available plans in your zip code — not just the one you have now. Plan availability and pricing varies significantly by county in Florida.
• Re-check your subsidy eligibility — even if you didn't qualify before, expanded subsidy rules may change your eligibility this year.
• Review your actual healthcare use — if you had a low-utilization year, a higher-deductible plan might cost you less in total even if the premium looks similar.
• Check if your doctors are still in-network on any new plan you're considering. Networks change year to year.