USA: Cost of Professional Liability Insurance for Accountants According to Insureon's 2026 cost data, financial service and accounting professionals pay an average of $42 per month, or $500 annually, for professional liability insurance. But the actual range is much wider than that average suggests: Professional liability insurance costs between $32 and $193 monthly, depending on your industry and location. A solo accountant pays $1,437 annually, while a two-employee firm pays $315 more due to increased liability exposure. Here is what specific providers charge US accountants in 2026: ProviderMonthly Cost (Accountants)Annual CostBest ForNEXT Insurance~$26~$312Solo accountants, fastest quoteThimble~$30~$360Freelance/part-time accountantsSimply Business~$42~$500Small accounting firmsCoverdash~$50~$600Growing practicesThe Hartfordcustom~$1,560Established firms, best serviceIndustry Average~$78~$931Benchmark comparison 🇺🇸 Cheapest Professional Liability Insurance for Accountants: US Providers (2026)

Source: Insureon, NEXT Insurance, The Hartford — solo accountant, $1M coverage, no prior claims

UK: Cost of Professional Indemnity Insurance for Accountants In the UK, professional liability insurance for accountants is called professional indemnity (PI) insurance and is mandatory for members of the ICAEW, ACCA, AAT, and CIMA. Hiscox business insurance for accountants starts from £8.40 per month, covering professional indemnity, with policies compliant with ICAEW minimum terms for Chartered Accountants. Here is the full UK provider comparison for 2026: ProviderStarting Monthly CostStarting Annual CostBest ForAXAFrom £6/monthFrom £68/yearBudget-conscious accountantsSimply BusinessFrom £5.64/monthFrom £67/yearComparing multiple quotesHiscoxFrom £8.40/monthFrom £100/yearICAEW/ACCA compliant coverPolicyBeeCustomFrom £92/yearACCA, AAT, CIMA membersMarsh CommercialCustomCustomTop 100 accounting firmsHowdenCustomCustomLarge established practices 🇬🇧 Cheapest Professional Indemnity Insurance for Accountants: UK Providers (2026)

Source: Simply Business, Hiscox UK, AXA — sole trader accountant, £100K–£500K cover

Cheapest Professional Liability Insurance for Accountants in 2026

TL;DR

Professional liability insurance for accountants costs as little as $42/month in the US and £6/month in the UK in 2026.

The Hartford, NEXT Insurance, and Simply Business are the cheapest providers for accountants right now.

Without professional liability insurance for accountants, a single negligence claim can cost over $100,000 in legal fees alone.

Before diving in, if you also run a vehicle for your accounting business or drive between client offices, it is worth checking out the complete guide to auto insurance to make sure your business travel is covered too.

WARNING: Many accountants assume their general liability policy covers professional mistakes. It does not. General liability covers physical injuries and property damage. Professional liability insurance for accountants specifically covers financial losses caused by errors, omissions, missed deadlines, and bad advice. Without it, you are personally liable for every penny of a client lawsuit.

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