What Professional Liability (E&O) Insurance Requirements Apply in Wisconsin?

Wisconsin requires paid home inspectors to register and requires each inspector employed by a business entity to be registered. The written report must identify detected defects and include a referenced summary page, so compare E&O proposals against the actual reporting and inspection services your firm provides.

What Is Professional Liability (E&O) Insurance?

Professional liability can help pay defense costs and covered losses when a client says your advice or service caused financial harm. If customers rely on your work, list every service you provide and check the claims-made reporting and prior-work terms. Read the national Professional errors and omissions (E&O) guide.

What to Watch for With Professional Liability (E&O) in Wisconsin

A Required Summary Page Is Part of the Report
Wisconsin requires a written report describing detected defects and a summary page that separates defects from repairs, further evaluation, monitoring, and maintenance items, with references into the detailed report. Ask whether the policy description covers the reports your inspectors produce and how you preserve the underlying detail. ²
Standard Inspections Are Not Technically Exhaustive
Wisconsin’s standard covers observable, readily accessible systems and components and does not require dismantling, prediction of future failures, or inspection for pests or hazardous substances. If you sell those or other credentialed services separately, list them and ask how the quote treats each service. ^3,²
Home Inspectors Cannot Recommend a Purchase
Wisconsin bars a home inspector from reporting verbally or in writing on a property’s market value or marketability, or whether it should be bought. If your firm also provides a separate advisory or valuation service, keep that work distinct in your application and coverage discussion. ²

Providers With Wisconsin License Records

These providers publish a national listing for Professional errors and omissions (E&O); the license records below name the licensed entities and roles. Some records rely on company-reported information rather than independent regulator verification. A national listing does not confirm the product is available in Wisconsin. Check the regulator’s license lookup and confirm state availability for your business when requesting a quote.

At-Bay
Insurance producer, Surplus-lines broker · checked 2026-09-28
At-Bay Insurance Services LLC
At-Bay’s license page lists P&C producer and surplus-lines broker license numbers for all 50 states and the District of Columbia. These are company disclosures and do not establish product availability in each jurisdiction. ⁹
At-Bay offers primary miscellaneous professional liability insurance.
Coalition
Insurance producer, Surplus-lines broker · checked 2026-09-28
Coalition Insurance Solutions, Inc.
Coalition’s license page lists producer and surplus-lines licenses for Coalition Insurance Solutions, Inc. in all 50 states and the District of Columbia. The page separately lists insurers; this record covers the brokerage entity only. ¹⁰
Coalition offers miscellaneous professional liability as an addition to eligible Active Cyber policies.
Corgi
Insurance producer · checked 2026-09-28
Corgi Insurance Services, Inc.
Corgi’s company producer-license table lists 50 jurisdictions: 49 states and the District of Columbia, including DC license 3003091619. New Mexico does not appear in the table and is not included here; the omission does not establish that Corgi is unlicensed there. The company-reported table has no stated as-of date and does not establish product availability. ¹¹
Corgi lists miscellaneous errors and omissions coverage for service-based businesses.
ERGO NEXT Insurance
Insurance producer · checked 2026-09-28
Next First Insurance Agency, Inc.
ERGO NEXT’s current license table lists Next First Insurance Agency, Inc. in 50 jurisdictions, including Washington, DC; New York is excluded because its table rows name Next Insurance Services and AP Intego, not Next First. The table is company-reported; it does not establish product availability or provide state-regulator verification for each entry. ¹³
ERGO NEXT lists professional liability insurance, also called errors and omissions insurance.
Hiscox
Insurer · checked 2026-09-28
Hiscox Insurance Company Inc.
Hiscox’s U.S. company information states that Hiscox Insurance Company Inc. is licensed in all 50 states and the District of Columbia. This is company-reported insurer authority for this entity and does not establish which company issues every Hiscox-branded product. ¹²
Hiscox offers professional errors and omissions insurance for small businesses.
TechInsurance
Insurance producer · checked 2026-09-28
Specialty Program Group LLC
TechInsurance’s current licensing page names Specialty Program Group LLC / SPG Insurance Solutions and lists state license numbers, but labels Rhode Island “Individual licenses” rather than identifying a license for the named agency. RI is omitted because this disclosure does not establish agency authority there; this is a search limitation, not an assertion that the company is unlicensed. The remaining state entries are company-reported and are not an insurance product availability map. ¹⁴
TechInsurance arranges professional errors and omissions insurance for small businesses.
Vouch
Insurance producer, Surplus-lines broker · checked 2026-09-28
Vouch Specialty Insurance Services, LLC
Vouch’s licenses page, effective January 16, 2025, lists producer licenses in all 50 states and DC. Its separate surplus-lines table includes Idaho number 870820, while a footnote says Georgia and Idaho do not issue agency-level surplus-lines licenses. Because those statements conflict for Idaho, this record keeps Idaho producer-only and does not treat the table number as established agency surplus-lines authority. The page is company-reported and does not establish product availability. ¹⁵
Vouch lists errors and omissions among the core coverages in its professional-services programs.

Who Regulates Insurance in Wisconsin?

Wisconsin Office of the Commissioner of Insurance

The Wisconsin Office of the Commissioner of Insurance administers Wisconsin insurance laws, oversees insurers and insurance producers within its authority, and provides regulatory and consumer resources. You can use the department's complaint process to raise an insurance issue and its licensing resources to check insurance professionals. ^4,^5,⁶

Website: Regulator website
License lookup: Search licensed producers
Complaints: File a complaint

Surplus-Lines Tax and Stamping Office in Wisconsin

Reported tax rate. 3% of premium ^7,⁸

The NAIC's state chart lists a 3% of premium charge for surplus-lines coverage for Wisconsin (the chart's state entries were reviewed in October 2025). Your broker may collect the applicable amount with the premium. Surplus-lines insurers are not licensed in the state and generally are outside state guaranty-association protection; ask your broker to explain the insurer's financial protections and any diligent-search requirement that applies to your placement.

Questions to Ask Before You Buy Professional Liability (E&O) in Wisconsin

Does the policy description include our Wisconsin defect-summary reports and any separate follow-up evaluations?
Are pest, hazardous-substance, or other separately credentialed services listed as covered professional work in the proposal?
If we offer valuation or buyer-advisory work through another business or credential, does that require a separate policy description?
What reporting and extended-reporting terms apply if a client alleges an error after the inspection date?

Professional Liability (E&O) Insurance in Wisconsin: FAQ

Do Wisconsin home inspectors need to register?

Yes. An individual generally must be registered to act as a home inspector, and a business entity may provide services only if each employed home inspector is registered; the statute lists exceptions. ¹

What must a Wisconsin home-inspection summary include?

It must list observed defects and, separately, other components needing repair, further evaluation, monitoring, or maintenance, with references to the detailed account. ²

Sources for Professional Liability (E&O) Insurance in Wisconsin

1
Wis. Stat. §440.97 and Subchapter XI. Wisconsin Legislature; §§ 440.97(1)–(7), 440.9712(1)–(2), 440.9715; statute text and history through 2021 Act 17. Accessed 2026-09-28.
2
Wis. Stat. §440.975: Standards of practice. Wisconsin Legislature; §440.975(2)–(8), including report contents, summary-page language, scope and prohibited opinions. Accessed 2026-09-28.
3
Wis. Admin. Code SPS 131.31: General requirements. Wisconsin Legislature, Administrative Code; SPS 131.31(1)–(3); current code text and history (effective 8/1/1999; amendments listed through 2014). Accessed 2026-09-28.
4
Wisconsin Office of the Commissioner of Insurance. Wisconsin Office of the Commissioner of Insurance; Official regulator website; insurance oversight and consumer/professional resources. Accessed 2026-09-28.
5
Insurance Department Directory. National Association of Insurance Commissioners; Wisconsin Office of the Commissioner of Insurance entry; official contact and website listing. Accessed 2026-09-28.
6
Licensing Center. National Insurance Producer Registry; State producer licensing and lookup resources. Accessed 2026-09-28.
7
Surplus Lines Insurance Premium Taxes. National Association of Insurance Commissioners; WI row; state surplus-lines premium-tax rate reviewed October 2025. Accessed 2026-09-28.
8
Guaranty Associations & Funds. National Association of Insurance Commissioners; Coverage of claims from insolvencies of insurers licensed in a state; surplus-lines insurers are nonadmitted. Accessed 2026-09-28.
9
Licenses. At-Bay; Current producer introduction and state table; At-Bay Insurance Services LLC; P&C and surplus-lines identifiers. Accessed 2026-09-21.
10
Licenses and Carriers. Coalition; Licenses and Carriers, re-read 22 September 2026: Insurance Licenses table for Coalition Insurance Solutions, Inc., national producer number 18419475, with producer and surplus-lines numbers for all 50 states and DC including California 0L76155, Georgia 196479, Texas 2199630 and 2205589, Pennsylvania 815731 and 817452, Colorado 539028 and Wisconsin 3000108852. Insurance Carriers table naming, with NAIC numbers, Allianz Underwriters Insurance Company 36420, Arch Specialty Insurance Company 21199, Ascot Specialty Insurance Company 45055, Ascot Insurance Company 23752, Aspen Specialty Insurance Company 10717, Chaucer Insurance Company DAC, Coalition Insurance Company 29530, Fireman's Fund Indemnity Corporation 11380, Fortegra Specialty Insurance Company 16823, Lloyd's of London, MSIG Specialty Insurance USA Inc. 34886, MS Transverse Specialty Insurance Company 41807, Steadfast Insurance Company 26387, Vantage Risk Specialty Insurance Company 16275 and Zurich American Insurance Company 16535. Accessed 2026-09-22.
11
Insurance Producer Licenses. Corgi Insurance; Current complete Insurance Producer Licenses table for Corgi Insurance Services, Inc.; 50 rows covering 49 states and DC (DC 3003091619); no New Mexico row; no NPN or as-of date shown. Accessed 2026-09-28.
12
About Hiscox US Insurance. Hiscox; Hiscox Insurance Company Inc. NAIC 10200 as Chicago, IL domiciled insurer admitted or licensed in all 50 states and D.C.; Hiscox Inc. as general agent and Lloyd’s coverholder for Syndicates 33 and 3624; surplus-lines placements through licensed surplus-lines brokers; A.M. Best rating statement. Accessed 2026-09-16.
13
Licenses. ERGO NEXT Insurance; Current entity-by-state license table reopened 28 September 2026: 50 rows under Next First Insurance Agency, Inc., including Washington, DC; New York rows instead list Next Insurance Services PC-1423070 and AP Intego BR-1198885. Accessed 2026-09-28.
14
Insurance Licenses by State. TechInsurance; Current state table; identifies TechInsurance as a division of Specialty Program Group LLC d/b/a SPG Insurance Solutions; lists DC 3000041536 and labels Rhode Island “Individual licenses,” without an agency license number. Accessed 2026-09-28.
15
Licenses. Vouch; Effective 16 January 2025: Vouch Specialty Insurance Services, LLC, NPN 19926463; P&C table (50 states and DC); surplus-lines table includes Idaho 870820; footnote says Georgia and Idaho do not issue agency-level surplus-lines licenses; Idaho retained as producer-only due to conflict. Accessed 2026-09-15.

What Professional Liability (E&O) Insurance Requirements Apply in Wisconsin?

What Is Professional Liability (E&O) Insurance?

What to Watch for With Professional Liability (E&O) in Wisconsin

A Required Summary Page Is Part of the Report

Standard Inspections Are Not Technically Exhaustive

Home Inspectors Cannot Recommend a Purchase

Providers With Wisconsin License Records

At-Bay

Coalition

Corgi

ERGO NEXT Insurance

Hiscox

TechInsurance

Vouch