Wisconsin commercial insurance rate filings (2026)

📅 Most-recent Wisconsin filing effective October 1, 2025

Every commercial-insurance carrier writing business in Wisconsin must file their loss costs + rating values with the Wisconsin Department of Insurance. Those filings are primary-source, government-held records — the actual numerical inputs that drive every commercial quote in the state. Below: every recent active rate filing affecting Wisconsin commercial operations, with the SERFF tracking number linking to the public regulator record.

Wisconsin's primary workers' comp rate bureau

WCRB Wisconsin — the Wisconsin Compensation Rating Bureau is independent of NCCI and files Wisconsin loss costs separately.

Recent rate-filing activity — 1 state filings across 1 commercial line

Commercial carriers can't charge whatever they want — each state's Department of Insurance must approve loss-cost filings before they take effect. These are primary-source, government-held records available on SERFF Filing Access. Cited below: the most-recent active filings affecting commercial operations, with the real SERFF tracking number for each.

Line	State	Overall change	Effective	SERFF tracking
WC	WI	-3.20% overall (Manuf -3.39% / Contracting -6.88% / Office +1.35%)	Oct 1, 2025	WCRB-WI-2025-10-1-LC

Source: SERFF Filing Access (filingaccess.serff.com) — the official public-records interface for state Department of Insurance filings. Loss-cost changes shown are the overall bureau-wide change in each state; the actual impact on your quote depends on your class code, payroll, experience modifier, and carrier-specific loss-cost multiplier (LCM). Get a quote for your exact numbers.

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Bureau-filed loss-cost changes are the regulator-approved starting point — actual premium depends on your class code, payroll, experience modifier, schedule credits/debits, and the carrier's LCM. Request a free Wisconsin quote in under 90 seconds.

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Related Wisconsin cost pages

Wisconsin-specific cost guides for the verticals we cover:

Food truck Plumber Restaurant General contractor Landscaping Cleaning Tow truck Limousine Daycare Barber shop

📘 Educational, not advice. Filing data above is regulator-held public record. Bureau-filed loss costs are NOT carrier rates — each carrier applies its own loss-cost multiplier (LCM) + schedule credits/debits + experience modifier to produce the final quote you'll pay. For an actual Wisconsin quote, request a real quote or consult a licensed agent in Wisconsin.