The Washington Office of the Insurance Commissioner published a news release providing information on fire loss reporting requirements.
Beginning on January 1, 2026, Senate Bill 5419 requires insurers to submit fire loss reports to the Office of the Insurance Commissioner. The requirements apply to all authorized insurers that write commercial and personal lines policies that cover fire loss within the state. Fire loss claims that close or are adjusted on or after January 1, 2026, must be reported to the OIC within 90 days of the claim being closed.
Insurers must also submit a fire loss reporting attestation form to the OIC by December 31 every year. The first form is due not this year, but by December 31, 2026. Insurers who report fire loss data through ISO ClaimSearch do not need to send additional fire loss reports or attestation forms.
The fire loss reporting template, attestation form, and additional information can be found here.

