Texas's Windstorm Insurer of Last Resort Carries $127 Billion in Exposure on a $15 Million Reserve

The Texas Legislature created the Texas Windstorm Insurance Association (TWIA) in 1971, after Hurricane Celia caused $500 million in damage to Corpus Christi and private insurers pulled back from the coast.▸ TWIA exists to write windstorm and hail coverage for the coastal properties the voluntary market won't — 14 first-tier counties plus part of Harris County — and to charge premiums that, in a bad year, cannot possibly cover the loss. According to the Texas Department of Insurance's June 2026 TWIA overview, TWIA collected $820.9 million in premium in 2025 on $126.5 billion of coastal exposure — a gap a single major hurricane can blow through in an afternoon. What's supposed to close that gap is a state reserve fund. It has almost nothing left in it.

The Catastrophe Reserve Trust Fund (CRTF) is a state account, held by the Texas Comptroller, built to absorb TWIA losses that exceed premium.▸ The TDI overview lays out its history in one table, and the pattern repeats: the fund rebuilds for years, then a single storm empties it. It opened in 1995 with $122.8 million, grew to roughly $468 million by mid-2008, then was drained to exactly $0 that September paying Hurricanes Dolly and Ike. It took nine more years to reach $742 million by August 2017 — and two withdrawals for Hurricane Harvey that September and October, $370.7 million and $372.5 million, wiped it out again. It has never really recovered since: a $462.7 million withdrawal for Hurricane Beryl in March 2025 left the CRTF at roughly $15.2 million as of March 31, 2026, against $127.1 billion of coastal exposure now on TWIA's books.

For most of TWIA's history, an empty CRTF meant TWIA borrowed by issuing bonds — "public securities" — repaid mostly by surcharges tied to the windstorm program itself.▸ House Bill 3689, passed by the 89th Texas Legislature and effective September 1, 2025, tears that up. It removes public securities from TWIA's funding structure entirely and replaces them with direct loans from the state's Economic Stabilization Fund — the "Rainy Day Fund" — capped at $1 billion per catastrophe year. Those loans are repaid within three years through a statewide catastrophe surcharge, a flat percentage TDI's commissioner can order added to "all policyholders of policies" subject to the law — in effect, nearly every property insurance policy in Texas, coastal or not, though government entities are exempt. The same bill also lowered TWIA's required funding cushion from a 1-in-100-year storm to a 1-in-50-year storm, and authorizes up to $1 billion a year more in assessments on member insurers, who can pass some of that cost on through rates statewide.

Reinsurance is the deepest layer and the one TWIA actually leans on: for the program year running June 1, 2026 through May 31, 2027, its board secured $2.2801 billion in reinsurance and catastrophe bonds, plus a $500 million state line of credit it can grow by another $200 million.▸ But reinsurance only pays after the CRTF, the state loan, and the member assessments are exhausted — and the CRTF, the layer that's supposed to absorb the first loss, currently holds enough to cover roughly one thousandth of TWIA's insured value.

TWIA itself insured 286,251 properties as of March 31, 2026 — up from 272,567 fifteen months earlier.▸ But the surcharge that repays a depleted CRTF isn't billed to those 286,251 coastal policyholders alone. It lands on the broader property insurance market TDI tracks separately: 8,233,096 active homeowners, renters, condo, and mobile-home policies statewide in 2025, per TDI's homeowners market overview — a base roughly 29 times the size of TWIA's own book. A storm that drains the CRTF and triggers a state loan turns a coastal windstorm program's shortfall into a line item on insurance bills from El Paso to Texarkana, for three years at a time.

Figures are drawn from TDI's TWIA overview for the quarter ending March 31, 2026 and TWIA's own public announcements; "coastal exposure" refers to TWIA's total direct liability in force (residential, manufactured-home, and commercial combined) and excludes indirect liability such as additional living expense coverage.