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

Montana requires every active real-estate broker and salesperson to maintain continuous professional-liability coverage, including E&O, while licensed. Minimums depend on the policy route: individual or group coverage requires $100,000 per claim and a $300,000 annual aggregate, while a firm policy requires a $1 million aggregate.

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.

Montana Professional Liability (E&O) Insurance Requirements

Requirement	Details
Minimum per-claim limit	$100,000 per licensee ¹
Annual aggregate minimum	$300,000 group or individual; $1,000,000 firm policy ¹
Deductible maximum	$2,500 group or individual; firm policy $10,000 unless Board approves a higher amount up to $100,000 ¹

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

Match Limits to the Policyholder
A group or individual policy has a $300,000 annual aggregate per licensee, while a firm-issued policy has a $1 million aggregate and may carry a higher deductible only with written Board approval and demonstrated firm capacity. Confirm which route the insurer is certifying for each licensed person. ¹
Protect Continuous Prior Acts
Montana requires policies to offer prior-acts coverage when you maintain continuous past insurance. When moving insurers, ask the new carrier to preserve the retroactive date and confirm there is no gap in covered real-estate acts. ¹
Calendar the Reporting Extension
If coverage ends for a reason other than nonpayment of premium or deductible, the policy must provide an automatic 60-day reporting period and offer at least 365 days more if you request and pay within 60 days after termination. Put the request deadline on your renewal or broker-change calendar. ¹

Providers With Montana 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 Montana. 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. ¹⁸
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. ¹⁹
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. ²⁰
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. ²²
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. ²¹
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. ²³
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. ²⁴
Vouch lists errors and omissions among the core coverages in its professional-services programs.

Who Regulates Insurance in Montana?

Montana Commissioner of Securities and Insurance

The Commissioner of Securities and Insurance regulates Montana insurers and producers and acts as a consumer advocate. The office accepts written or online complaints about insurers and insurance professionals. ^3,^4,⁵

Website: Regulator website
License lookup: Search licensed producers
Complaints: File a complaint
Phone: 800-332-6148

Surplus-Lines Tax and Stamping Office in Montana

Reported tax rate. 2.75% of total premium (0.75% for legal professional liability) + 2.50% fire tax on applicable fire premium + 0.175% SLIP+ transaction fee on total premium ^6,^7,^9,¹⁰

Montana requires an eligible surplus-lines insurer and a statutory placement path when it is the insured’s home state. Before placement, the producing producer must advise you that the insurer is unauthorized in Montana and is not subject to the same supervision as an authorized insurer, and that if the surplus-lines insurer becomes insolvent, Montana’s property-and-casualty guaranty fund will not pay losses under the surplus-lines coverage. Confirm the applicable placement route and tax and fee bases with the producer.

Montana surplus-lines placement routes: When Montana is home state, §33-2-302 generally calls for an eligible insurer and evidence that the line or full amount is unavailable from authorized insurers (or, at renewal, has not become available). The evidence routes are a diligent search of at least three insurers actually writing that line in Montana (or the smaller actual market), the kind appearing on the current Approved Risk List, or natural-disaster multiperil coverage. The list names kinds and classes; it does not prove that a particular business or BOP qualifies. Section 302 separately waives search requirements for an authorized quote with a premium rate at least 10% above the eligible unauthorized quote, if commissioner-approved disclosure is provided; and for a qualifying exempt commercial purchaser (ECP), after disclosure that coverage may or may not be available from an authorized insurer that may provide greater protection with more regulatory oversight, followed by the purchaser’s later written request. Under §318, an ECP must employ or retain a qualified risk manager as defined in §319, have paid over $100,000 in nationwide commercial P&C premiums in the prior 12 months, and meet one additional §318(1)(c) criterion. Some financial thresholds adjust every five years. ^9,^10,^8,^12,^15,¹⁶
Check the fire-tax allocation on a commercial package: Section 33-2-311 generally requires the surplus-lines producer to collect and pay the tax when Montana is home state, subject to §33-2-323. For a single-state risk with Montana as home state, §33-2-323(4) requires submission to the Commissioner, who collects the tax. Ask the producer which filing and payment route applies. CSI’s July 2026 guide lists code 1005, Commercial Package (Property & Casualty), with a 50% presumptively reasonable allocation and a 1.25% effective fire-tax rate. Treat this as an example: verify the code and allocation used for the policy; do not assume every BOP is classified as code 1005. CSI’s current schedule sets annual tax due dates (quarterly tax payments are accepted) and separate quarterly SLIP+ transaction-fee deadlines. ^11,^14,^13,¹⁷

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

Is my policy group, individual, or firm-issued, and what aggregate and deductible apply to that route?
Will my retroactive date remain unchanged if I move from the Board plan or switch insurers?
If my policy ends, who will request and pay for the optional extended reporting period before Montana’s 60-day deadline?

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

Do Montana real-estate licensees need E&O insurance?

Yes. Brokers and salespersons with active Montana real-estate licenses must maintain continuous professional-liability coverage that includes E&O during licensure. ¹

Does a Montana firm policy have the same E&O aggregate as an individual policy?

No. A group or individual policy must provide at least a $300,000 annual aggregate per licensee; a policy issued to the affiliated firm must provide at least a $1 million aggregate. ¹

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

1
Montana Code Annotated 2025 § 37-51-325. Montana Legislature; § 37-51-325(1)-(9); amended 2019, 2021 and 2023; continuous professional liability coverage, policy routes, limits and reporting extensions. Accessed 2026-09-28.
2
Montana Board of Realty Regulation. Montana Department of Labor & Industry; Board page; current enrollment notice states licensed real estate brokers and salespersons must maintain continuous professional liability/E&O coverage. Accessed 2026-09-28.
3
Insurance. Montana Commissioner of Securities and Insurance; Official insurance regulator page; describes CSI as regulator and consumer advocate. Accessed 2026-09-28.
4
Producer, Adjuster & Consultant Licensing. Montana Commissioner of Securities and Insurance; CSI page links to the state’s SBS Licensee Lookup and Company Lookup. Accessed 2026-09-28.
5
Insurance Complaints & Fraud. Montana Commissioner of Securities and Insurance; Official page accepts online or written complaints about companies, producers and others; consumer advocate lines 800-332-6148 / 406-444-2040. Accessed 2026-09-28.
6
Surplus Lines. Montana Commissioner of Securities and Insurance; CSI page: from 2026, Montana-home-state transactions use SLIP+; 2025 and earlier use the legacy portal. States the 2.75% total-premium tax (0.75% for legal professional liability), 2.50% fire tax on applicable fire premium and 0.175% total-premium SLIP+ fee; links to current Approved Risk List and eligible-surplus-lines-company list. Accessed 2026-09-29.
7
MCA §33-2-303: Filing and endorsement of contract -- submission form. Montana Legislature / Montana Code Annotated; MCA 2025, §33-2-303(2)(b)(i)-(ii): before placement the producer affirms notice that the insurer is unauthorized and not under the same supervision, and that Montana’s P&C guaranty fund will not pay surplus-lines losses. Accessed 2026-09-29.
8
MCA §33-2-301: Short title -- purpose -- definitions. Montana Legislature / Montana Code Annotated 2025; §33-2-301(3)(c), (h), (n): defines Approved Risk List, eligible surplus-lines insurer and natural-disaster multiperil insurance; definition only, not operative placement test or list contents. Accessed 2026-09-29.
9
MCA §33-2-302: Home state exclusive authority -- conditions precedent to sale of surplus lines insurance. Montana Legislature / Montana Code Annotated 2025; §33-2-302(1)-(2)(a)-(c): Montana home-state scope; eligible-insurer and unavailability conditions; diligent search (three actual Montana writers or smaller market), current list, natural-disaster multiperil; 10% price and ECP no-search routes with required disclosure and written request. Accessed 2026-09-29.
10
MCA §33-2-307: Requirements for eligible surplus lines insurers -- list of eligible surplus lines insurers. Montana Legislature / Montana Code Annotated 2025; §33-2-307(1)-(4): eligibility conditions for US-domiciled and alien unauthorized insurers; commissioner publishes an eligible-insurer list at least semiannually. No carrier-specific conclusion drawn. Accessed 2026-09-29.
11
MCA §33-2-311: Tax on surplus lines insurance. Montana Legislature / Montana Code Annotated 2025; §33-2-311(1)-(2): when Montana is the insured’s home state, surplus-lines producer collects tax from insured and pays Commissioner; when Montana is not home state, Commissioner generally may not collect Montana tax/stamping fee, subject to cited statutory arrangement. Accessed 2026-09-29.
12
Approved Risk List. Montana Surplus Lines Agents’ Association (current list linked from CSI Surplus Lines page); PDF header p.1: updated 2024-01-16, reviewed 2026-06-18. p.1 GL includes Contractors; pp.1-2 include Property and Builders Risk in Protection Class 9 & 10. The list names kinds/classes, not a blanket BOP or carrier guarantee. Accessed 2026-09-29.
13
Montana Surplus Lines Premium and Fire Tax Payment and Transaction Fee Schedule. Montana Commissioner of Securities and Insurance; February 2026 schedule p.1, lines 1-6: tax and fee rates/bases; lines 7-73: invoice and due-date schedule; lines 74-76: tax year 2025 and earlier legacy portal/OPTins. Accessed 2026-09-29.
14
How Fire Tax is Calculated in Montana. Montana Commissioner of Securities and Insurance; July 2026 guide p.1, lines 1-4 and 10-15: 2.50% fire tax is allocated by coverage; code 1005 Commercial Package (Property & Casualty) has a 50% presumptively reasonable allocation and 1.25% effective rate. Example only; does not establish BOP classification. Accessed 2026-09-29.
15
MCA §33-2-318: Exempt commercial purchaser defined. Montana Legislature / Montana Code Annotated 2025; §33-2-318(1)(a)-(c), (2): qualified risk manager, >$100,000 prior-12-month aggregate nationwide commercial P&C premium, and at least one criterion; financial thresholds in (c)(i),(ii),(iv) adjust every five years. Accessed 2026-09-29.
16
MCA §33-2-319: Qualified risk manager defined. Montana Legislature / Montana Code Annotated 2025; §33-2-319(1)-(2): QRM role and alternative education, experience, designation or graduate-degree qualifications; ECP note cites the defined term without summarizing those alternatives. Accessed 2026-09-29.
17
MCA 33-2-323: Authorization for agreements regarding multistate risks. Montana Legislature; 2025 MCA, subsections (1)–(5); subsection (4) single-state transaction submission and Commissioner tax collection; no assertion that a multistate agreement is in effect. Accessed 2026-09-29.
18
Licenses. At-Bay; Current producer introduction and state table; At-Bay Insurance Services LLC; P&C and surplus-lines identifiers. Accessed 2026-09-21.
19
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.
20
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.
21
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.
22
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.
23
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.
24
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 Montana?

What Is Professional Liability (E&O) Insurance?

Montana Professional Liability (E&O) Insurance Requirements

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

Match Limits to the Policyholder

Protect Continuous Prior Acts

Calendar the Reporting Extension

Providers With Montana License Records

At-Bay

Coalition

Corgi

ERGO NEXT Insurance

Hiscox

TechInsurance

Vouch