Coterie vs Usi: Professional Liability / E&O Insurance

USI Insurance Services markets its AICPA program, underwritten by CNA, to sole practitioners and regional CPA firms, with engagement-letter templates and risk resources. Coterie Insurance lists dozens of eligible professions and sells only through agents and brokers.

Kearny Risk organizes these comparisons for firms whose advice, content or technology creates professional exposures.Research updated 2026-09-25

What Are the Key Differences Between Coterie Insurance and USI Insurance Services Professional Liability (E&O) Insurance?

A Named Carrier for a Narrow Program Versus No Carrier for a Broad One

USI's own page states that the AICPA Professional Liability Program, which it runs as the endorsed producer through its USI Affinity division, is "underwritten by CNA." [7] Coterie's MPL brochure names the policy form, "Coterie Professional Liability Errors and Omissions Insurance Declarations," but leaves the issuing insurer to the policy declarations. [2]

CPA Firms Only Versus Dozens of Listed Professions

USI markets the AICPA program to sole practitioners and regional CPA firms specifically, and has been the endorsed AICPA Program provider since 1994. [7] Coterie lists dozens of eligible professions for MPL instead, including accounting services, architects and engineers, bookkeeping, human resources consulting, interior design and technology services/IT consulting. [2]

A Named Risk-Management Service Versus a Published Exclusions List

USI says firms enrolled in the AICPA program get supportive claims handling and exclusive access to risk-management resources, including engagement-letter templates. [7] Coterie's MPL brochure instead publishes its base-form exclusions directly, covering bodily injury or property damage, fraud, wrongful termination and contractual liability beyond the underlying contract. [2]

What Should You Confirm in Coterie Insurance and USI Insurance Services Professional Liability (E&O) Insurance Quotes?

  • If you're a CPA firm, ask USI whether your quote falls under the AICPA program or its general Business Services brokerage, since USI runs both. [8]
  • Ask an agent or broker to name the insurer behind your Coterie MPL declarations page, since the brochure doesn't name one. [2]
  • Get published limit or premium figures from USI directly, since the AICPA program page doesn't publish them. [7]
  • Ask an agent or broker which of Coterie's each-claim limit tiers your contract requires before binding. [2]

USI says its AICPA Professional Liability Program, sold exclusively to CPA firms, is underwritten by CNA. Coterie's MPL covers dozens of professions under one form but names only the policy form, not an insurer.

Sources reviewed

  1. 01
    Coterie Insurance small business products overview

    Coterie Insurance · Product line overview page listing Professional Liability among Coterie's coverages · accessed 2026-09-23

  2. 02
    Miscellaneous Professional Liability (MPL) Policy Overview & Product Highlights for Agents and Brokers

    Coterie Insurance · Policy overview paragraph; Eligible Professions list; 'Currently unavailable in: DC, IL, MA, MT, ND, and VA'; Professional Liability Limits of Insurance table; Claims-Made Policy Form / Retroactive Date / Extended Reporting Period definitions; Mandatory Countrywide PL Policy Forms; Base Form Exclusions · accessed 2026-09-23

  3. 03
    Professional Liability – US Direct Errors and Omissions Insurance

    Hiscox Inc. specimen · About this Policy / Coverage for Claims Made Against You; I.A Insuring Agreement; I.B Defense; I.C Settlement; II.A Notice of Claims; II.C Optional Extended Reporting Period; III.A, III.K, III.M, III.R, III.S Exclusions; IV.A–B Limits and Deductible; VI.O Professional Services; VI.U Wrongful Act · accessed 2026-09-16

  4. 04
    Professional liability insurance

    Insurance Information Institute · Opening paragraphs (professional services/advice and E&O name); Claims not covered by general liability; What types of businesses need professional liability insurance?; What’s covered… and what’s not (claims-made versus occurrence, defense and judgments, non-financial/intentional limits, BOP/in-home exclusion) · accessed 2026-09-16

  5. 05
    FAQ: Professional liability insurance

    Texas Department of Insurance · What’s professional liability coverage?; What types of damages…; What’s general liability insurance?; Do I need professional liability… if I have general liability…?; Is professional liability insurance required?; Can a client require…?; What’s the difference between occurrence policies and claims-made policies · accessed 2026-09-16

  6. 06
    Get business insurance

    U.S. Small Business Administration · Six common types of business insurance table · accessed 2026-09-16

  7. 07
    Accountants Professional Liability — USI Affinity

    USI Insurance Services · Quality Professional Liability Insurance Exclusively for CPA Firms; "The AICPA Professional Liability Program, underwritten by CNA, has been offering coverage to CPAs since 1967 and has been the endorsed provider of the AICPA Program since 1994."; supportive claims handling and exclusive access to extensive risk management resources, including engagement letter templates; Email Affinity_APL@usi.com · accessed 2026-09-23

  8. 08
    Business Services

    USI Insurance Services · USI advises clients...and provides solutions for...Errors & Omissions/Professional Liability... · accessed 2026-09-23

  9. 09
    USI Specialty Program Solutions

    USI Insurance Services · USI Affinity delivers high-quality insurance and financial solutions to members of affinity organizations and targeted industry segments...for professional associations, law firms, alumni and collegiate organizations, travel groups, and insurance administrators. · accessed 2026-09-23

Areas of coverage

Coterie Insurance

  • role: Coterie writes Miscellaneous Professional Liability (MPL) as a claims-made policy sold through agents and brokers to protect a small-business client against third-party claims for errors or omissions in their professional services. MPL brochure policy-overview paragraph.company-reportedSource ↗
  • insurer: The MPL brochure names the policy form 'Coterie Professional Liability Errors and Omissions Insurance Declarations' (form code CTPL CWW PL) but does not name the issuing insurer; that appears only on the policy declarations. MPL brochure 'Mandatory Countrywide PL Policy Forms' table.company-reportedSource ↗
  • eligibility: Coterie lists dozens of eligible professions for MPL, including accounting services, architects and engineers, bookkeeping, human resources consulting, interior design, property management, real estate agents/brokers, and technology services/IT consulting, each with profession-specific exclusions in some cases (for example, barbers/beauticians exclude services like electrolysis and tattoo services). MPL brochure 'Eligible Professions' and 'Eligible Professions (Continued)' lists.company-reportedSource ↗
  • eligibility: Coterie says MPL is available in most states but is currently unavailable in DC, IL, MA, MT, ND, and VA. MPL brochure 'MPL unavailable' note.company-reportedSource ↗
  • coverage: Coterie's MPL policy covers economic or financial (non-physical) damages arising from wrongful acts in professional services, such as faulty reports or verbal advice that cause a client financial loss; it is written on a claims-made basis covering incidents reported during the policy period or an extended reporting period, occurring after the policy's retroactive date. MPL brochure policy overview and 'Professional Liability Limits of Insurance' definitions.company-reportedSource ↗
  • coverage: Coterie's MPL base form excludes bodily injury or property damage claims, fraud or intentional wrongful acts, wrongful termination or discrimination claims, and claims based on contractual liability assumed beyond what would exist without the contract, among other listed exclusions. MPL brochure 'Professional Liability Policy Base Form Exclusions' list.company-reportedSource ↗
  • limits: Coterie offers MPL each-claim limits of $25,000, $50,000, $250,000, $500,000, or $1,000,000, with the aggregate set at two times the each-claim limit (three times for the $1,000,000 option); the basic policy includes a 60-day extended reporting period, with optional purchased extensions of 1 to 6 years, and up to 6 years of prior-acts (retroactive) coverage. MPL brochure 'Available Limits' table and 'Extended Reporting Period'/'Retroactive Date' definitions.company-reportedSource ↗
  • application: MPL is distributed only through agents and brokers using Coterie's quoting platform; the reviewed brochure does not describe a direct-to-business application path. MPL brochure framing as 'for Agents and Brokers'.company-reportedSource ↗

USI Insurance Services

  • role: For CPA firms, USI runs the AICPA Professional Liability Program through its USI Affinity division as the endorsed producer, rather than underwriting the policy itself. USI's general Business Services practice separately brokers errors and omissions/professional liability coverage for other business types. AICPA program page and Business Services practice page.company-reportedSource ↗Source ↗
  • insurer: USI's own page states that the AICPA Professional Liability Program is "underwritten by CNA," naming the carrier for that specific program. USI's general Business Services E&O placements do not name an insurer. Direct quote from the AICPA program page; CNA underwrites only this named program, not USI's other professional-liability placements.company-reportedSource ↗
  • eligibility: USI markets the AICPA program to sole practitioners and regional CPA firms. It has offered CPA coverage since 1967 and has been the endorsed AICPA Program provider since 1994. Program page description.company-reportedSource ↗
  • coverage: USI describes the policy as insuring a CPA and their practice against third-party claims that professional services caused financial harm, providing a defense and paying damages for covered claims arising from high-risk situations tied to new clients, changing business plans, or new laws and regulations. Program page description; actual insuring agreements, exclusions and conditions are set by the issued CNA policy form.company-reportedSource ↗
  • limits: The AICPA program page does not publish limit, retention or premium figures; it says coverage plans allow a firm to tailor coverage to its risk profile. Page as read on 2026-09-23.not-disclosedSource ↗
  • services: USI says firms enrolled in the program get supportive claims handling and exclusive access to risk-management resources, including engagement-letter templates, in addition to the coverage itself. Program page description.company-reportedSource ↗
  • application: USI directs CPA firms seeking a quote or renewal to contact USI Affinity, with a dedicated Affinity_APL@usi.com address for the AICPA program specifically. Contact instructions on the AICPA program page.company-reportedSource ↗

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