Stop-loss insurance protects self-funded employers from catastrophic claims, but multimillion-dollar claims from complex cancer care, premature births, and specialty treatments are hardening the market by driving higher premiums and tighter coverage terms.

Recent stop-loss data reported in The Daily Actuary highlight the issue:

  • Between 2019 and 2023, the frequency of claims above $2 million nearly doubled (from 7.8 to 15.3 per million members), while claims above $5 million tripled.
  • Total stop-loss premiums reached $39.9 billion in 2024, up 12.4% from 2023 and more than double the 2017 total.
  • Monthly premiums per member rose from $33.63 in 2019 to $54.07 in 2024, while enrollment grew just 0.3% annually.
  • In 2024, carriers incurred $86 in claims for every $100 in premium, up from $80 in 2023 — the highest percentage in the report’s historical series.

Stop-loss carriers set premiums based on expected claims. When actual costs exceed those expectations, they raise rates at renewal. Because claims data often emerges after quotes are already committed, pricing lags. The result: Higher premiums are supporting carriers’ recovery, even as underlying medical costs remain elevated.

In a hardening market, carriers become more selective. Employers may see higher deductibles, fewer competitive quotes, lasers, and tighter lock-in times for quoted rates as carriers wait for more current claims data — leaving less time to evaluate options and decide.

In this environment, MedBen can help you review stop-loss proposals, compare coverage terms, and weigh premium cost against the protection provided so you can choose the option that best fits your population and financial priorities. If you ever have a question about your stop-loss insurance, reach out to your Account Management team.