biBERK vs Usi: Professional Liability / E&O Insurance

CPA firms can enroll in the AICPA program that USI Insurance Services administers, underwritten by CNA, with risk-management resources. Other professionals who prefer buying online in all 50 states can look at biBerk.

Kearny Risk organizes these comparisons for firms whose advice, content or technology creates professional exposures.Research updated 2026-10-01

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

Coverage Description

USI says its USI Affinity division is the endorsed producer for the AICPA Professional Liability Program for CPA firms, which is underwritten by CNA; it separately brokers E&O for other business types. biBerk describes an E&O trigger for alleged professional errors causing financial harm. USI’s selected claim specifies a program role, while biBerk’s specifies a coverage response; compare the actual issued carrier and terms for your firm. [6] [7] [1]

Policy Terms and Scope

USI’s AICPA program page says it provides claims-handling support and risk-management resources such as engagement-letter templates; biBerk describes client allegations of professional errors causing financial harm. Those are different service and coverage features. Ask which program resources and policy defense provisions are included for your firm. [6] [1]

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

  • Ask USI whether the AICPA program fits your firm structure and what limits are available. [6]
  • Ask biBerk which insurer and policy form apply to your CPA services. [1]

Areas of coverage

biBerk

  • coverage: biBerk says professional liability can respond when a client alleges an error, omission or negligent professional act caused financial harm. Entity: biBerk brand; underlying issuing company is policy/state-dependent unless stated. Product: small-business professional E&O. Jurisdiction: United States; availability varies by state unless stated. Limitation: Company-reported; exact issued policy wording and underwriting determine coverage.company-reportedSource ↗
  • coverage: biBerk says litigation defense may be covered even if the accusation proves groundless, depending on policy terms. Entity: biBerk brand; underlying issuing company is policy/state-dependent unless stated. Product: professional E&O defense. Jurisdiction: United States; availability varies by state unless stated. Limitation: Company-reported; exact issued policy wording and underwriting determine coverage.company-reportedSource ↗
  • eligibility: biBerk identifies consultants, accountants, real-estate agents and insurance agents as professions that may need E&O. Entity: biBerk brand; underlying issuing company is policy/state-dependent unless stated. Product: small-business professional services. Jurisdiction: United States; availability varies by state unless stated. Limitation: Company-reported; exact issued policy wording and underwriting determine coverage.company-reportedSource ↗
  • eligibility: biBerk says it provides Professional Liability in all 50 states. Entity: biBerk brand; underlying issuing company is policy/state-dependent unless stated. Product: professional E&O. Jurisdiction: United States; availability varies by state unless stated. Limitation: Company-reported; exact issued policy wording and underwriting determine coverage.company-reportedSource ↗
  • application: The page describes online quote/purchase and online claim submission with phone support. Entity: biBerk brand; underlying issuing company is policy/state-dependent unless stated. Product: professional E&O. Jurisdiction: United States; availability varies by state unless stated. Limitation: Company-reported; exact issued policy wording and underwriting determine coverage.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 ↗

USI describes defense and damages for covered third-party claims involving CPA professional services; biBerk describes an alleged-error trigger and possible groundless-claim defense.

Sources reviewed

  1. 01
    Professional Liability Insurance | Talk To biBerk

    biBerk · What Professional Liability covers · accessed 2026-09-28

  2. 02
    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

  3. 03
    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

  4. 04
    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

  5. 05
    Get business insurance

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

  6. 06
    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

  7. 07
    Business Services

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

  8. 08
    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

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