Reinsurance costs and your premium

Your insurer buys reinsurance to cap what a hurricane, wildfire or hail season can do to its balance sheet, and what it pays for that protection is built into the rates it files with the state. When reinsurance prices spiked in 2023, rate requests rose with them. Reinsurance prices have fallen since, and a few regulators have approved rate cuts that name lower reinsurance costs as the reason, but the saving reaches you slowly and only where reinsurance was the main driver of your increase.

What the insurer is paying for

A homeowners insurer collects premiums from thousands of policies and can absorb ordinary claims from them. A single hurricane that damages 50,000 of its homes is a different problem. So the insurer buys catastrophe protection from reinsurers: if its losses from one event pass an agreed retention, the reinsurer pays the next slice, up to a limit. Insurers stack several slices into a reinsurance tower, and each higher slice is cheaper per dollar of coverage because it is less likely to be reached. reinsurance: the insurers behind your insurer covers the structure in detail.

Many smaller insurers also use a second kind, quota share, in which the reinsurer takes a fixed percentage of every policy and the same percentage of the losses. That moves premium out the door as well, but the reinsurer also pays a commission back and shares in claims, so ceded premium is not the same thing as net cost.

In Florida, insurers can also buy cover from the state-run Florida Hurricane Catastrophe Fund, which is a separate, state-run layer. Larger insurers add catastrophe bonds sold to investors.

How the price reaches your policy

1. The reinsurance renews. Most programs renew once a year. Florida programs typically renew on June 1, the start of hurricane season, and many others on January 1.
2. The insurer's actuaries price it into the rate. The expected cost of reinsurance is part of the catastrophe load in a homeowners rate, along with expected losses from storms, which the insurer estimates with catastrophe models.
3. The insurer files. The new indicated rate goes to the state in a rate filing, often with the reinsurance cost documented. In prior-approval states the regulator must sign off before it applies; see prior approval vs file-and-use rate laws.
4. The regulator reviews it. Some states limit what can be charged. California is the clearest example. Until January 2025 its rules generally required property rates to be set on a direct basis, with no consideration of the cost or benefits of reinsurance (earthquake was an exception). Under the Sustainable Insurance Strategy, rules that became operative on January 13, 2025 let insurers include a standardized net cost of reinsurance for wildfire and certain other perils, counting only California exposure, if they commit to write in distressed areas (California Department of Insurance, December 30, 2024; see California's Sustainable Insurance Strategy).
5. Your renewal carries the change. An approved increase applies one renewal at a time, so a policy that renews in March may not see an increase that was approved in January until the next year.

A hypothetical to see the size

Say an insurer writes $500 million of homeowners premium and spends $100 million a year on net reinsurance. If reinsurance prices rise 30%, that bill becomes $130 million. Holding everything else constant, the insurer needs another $30 million, or about 6% of premium, just to stand still. If prices instead fell 20% from the original level, the saving would be $20 million, about 4% of premium. The percentage that reaches your rate depends on how much of the insurer's premium goes to reinsurance, how much of the saving the regulator expects it to pass on, and what else changed. A Florida insurer that cedes more than half of its premium will see a much bigger swing than a Midwest insurer that buys a modest tower. These figures are invented for the example, not market prices.

What happened: the spike and the retreat

Reinsurance prices moved sharply, and then the other way:

Measures differ: some are risk-adjusted and some are not, so the rows are not a single series. The pattern is clear enough. Artemis still put the index about 62% above its 2017 low after mid-2026, so prices are down but not back to where they were before the 2017 hurricanes. Guy Carpenter has also reported record reinsurance capital, $663 billion at the end of 2025, which is why buyers hold the stronger hand at renewals now.

The Florida dependency explains why the state felt this so sharply. According to AM Best data reported in June 2024, the share of premium that Florida personal property specialists (excluding Citizens) ceded to unaffiliated reinsurers rose from 52.3% of direct premiums written in 2019 to 56.3% in 2023, and their reinsurance costs roughly doubled from $3.1 billion to $6.4 billion over those years.

Are the savings reaching homeowners?

In places, yes, and the regulators say so. In Louisiana, the state's insurance commissioner approved a 7.5% average rate decrease for the SURE and Elevate exchanges (effective February 16, 2026), and the Louisiana Department of Insurance said the cut was primarily driven by a reduction in reinsurance costs (Reinsurance News, December 11, 2025; see SURE and Elevate). The Florida Office of Insurance Regulation reported on September 22, 2026 that the 30-day average of homeowners rate requests was a 4.8% decrease. Nationally, AM Best reported in September 2026 that the average approved increase fell from 13.5% in 2024 to 4.3% in the first half of 2026 (Reinsurance News).

It does not reach everyone, for four reasons:

• Lag. Reinsurance prices fall on a renewal date, the filing comes months later, and the cut hits your policy on its next anniversary.
• Other costs. Reinsurance is one of several drivers. Rebuilding cost, claims severity and litigation still push in the other direction. why homeowners insurance keeps going up sorts these out.
• Each insurer's own experience. In the same Louisiana filings, State Farm, the state's largest homeowners insurer, was approved for a 9.7% average increase that it tied to hurricane modeling (Artemis, December 11, 2025). Reinsurance is one input among several.
• Location. A price drop in a Florida reinsurance program does little for a Kansas homeowner whose rate rises are driven by hail.

What you can do

You cannot negotiate with a reinsurer, but several steps follow from how the money moves.

• Shop at renewal. Insurers pass savings along at different speeds. When prices are softening, quotes diverge more than usual. shopping your policy at renewal: how often and how covers how to do it.
• Read the notice. If your renewal increase is large, ask your agent whether it is a base rate change filed for everyone in your area or something specific to your policy. The home insurance renewal increase checker helps sort that out.
• Look up the filing. Many state insurance departments publish rate filings; the explanatory memorandum often names reinsurance as a driver, which tells you whether the increase will ease.
• Reduce modeled losses. The catastrophe loads that reinsurance prices sit on are driven by modeled wind, fire and hail damage, and mitigation credits are how homeowners reach that number. See wind mitigation inspections and discounts and home hardening for wildfire and insurance discounts.

Key takeaways

• Reinsurance is a direct cost in your rate: your insurer files for it, and the regulator decides how much can be passed on.
• Catastrophe reinsurance prices spiked in 2023 (Guy Carpenter's U.S. index rose 30.1% at January 1, 2023) and fell in 2025 and 2026, with Florida June 2026 renewals down about 15% to 25% across reports.
• The effect is largest where insurers cede the most premium; Florida's property specialists ceded 56.3% of direct premium in 2023, per AM Best.
• Some regulators now attribute approved rate cuts to cheaper reinsurance, but renewals lag and rebuilding costs and storm losses still push rates up.
• Compare quotes at renewal, since insurers pass savings through at different speeds.