ZestyAI says filing delays cost insurers $72.8 million a day
ZestyAI says filing delays are costing insurers $72.8 million a day, with most of the drag tied to preventable objections and missing paperwork.
Every day a rate filing sits in limbo, insurers are not just waiting on a stamp. They are waiting to grow, to reprice risk faster, and to stop leaving margin stranded. ZestyAI says that drag adds up to about $72.8 million in foregone premium per day, and its point is blunt: the biggest slowdown is often procedural, not actuarial.
The company’s analysis leaned on more than 2 million P&C rate and form filings and more than 200 million pages of regulatory documentation inside its ZORRO Discover platform. ZestyAI also reviewed 147 homeowners filings approved in the second and third quarters of 2025 and found an average approved increase of 8.49%. That matters because every extra week before a filing takes effect delays the moment a carrier can translate new pricing into earned premium.
ZestyAI says the core problem is filing quality. Seventy-four percent of carriers receive objections on at least half of their filings, a sign that repeated friction is built into the process. The most common objections are mechanical: missing exhibits, incomplete documentation, inconsistent data, weak explanations of rate changes and incomplete responses to regulator questions. In personal auto, the timing penalty is severe. Filings with no objections averaged 14 days to approval, while filings with objections averaged 51 days.
That gap turns filing software into infrastructure, not back-office plumbing. If a carrier can catch incomplete responses, verify exhibits and apply jurisdiction-specific compliance logic before submission, it can cut down the objection cycle that turns a quick approval into a two-month wait. ZestyAI’s early adopters say ZORRO Discover reduced research time by an average of 95%, which explains why vendors are pitching filing intelligence as a speed-to-market tool as much as a compliance layer.
State-level data shows why the stakes differ by market. Perr&Knight reported Maryland’s median approval time for rate filings hit 185 days in the first quarter of 2025, up from 99 days in 2024 and 25 days in 2023, while California’s combined rejection and disapproval rate was nearing 40% through the third quarter of 2025. California’s homeowners approval timelines improved later in 2025, but the state remained the slowest overall. Wisconsin, by contrast, moves faster under use-and-file rules, and Texas keeps running into cloned filings and incorrect submission details.
The broader underwriting backdrop makes the delay problem harder to shrug off. Triple-I said the U.S. personal auto industry posted a 95.3 net combined ratio in 2024, and Triple-I and Milliman forecast 96.0 for 2025. Triple-I also said personal auto filings grew more cumbersome from 2010 to 2023, with average approval time rising from 39 to 54 days and annual withdrawals climbing from 1,900 to 3,200. Homeowners filings slowed too, with average approval time rising from 44 days to 63 days from 2018 to 2024, while the January 2025 Los Angeles wildfires worsened losses. The NAIC’s Speed to Market (D) Working Group is trying to modernize filing and review through SERFF, but the message from ZestyAI’s numbers is clear: better filings can move premium faster, and sloppy ones now have a measurable price.
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