General Liability Insurance Cost for Accountants and Bookkeepers (2026)
Accountants and bookkeepers pay $300 to $1,000 per year for $1M occurrence and $2M aggregate GL. The bigger insurance line is professional liability (E&O), which routinely costs two to five times the GL premium. The AICPA Professional Liability Insurance Program is the dominant market for CPA firms, and most state boards expect E&O coverage even when they do not technically require it.
Cost by operation type
Carriers split accounting and bookkeeping into roughly seven rating buckets. The differences are small because the underlying GL exposure is small across all of them. Most accounting work happens in offices, with limited third-party bodily-injury and property-damage exposure. Ranges below assume one to five staff, $250,000 to $1M of revenue, $1M / $2M limits, and a clean three-year claims record.
| Operation type | Annual range | Monthly range | Risk band |
|---|---|---|---|
| Solo bookkeeper (1099 / contract) | $300 to $500 | $25 to $42 | Low |
| Bookkeeping firm (1 to 3 staff) | $350 to $600 | $29 to $50 | Low |
| Solo CPA (general practice) | $350 to $600 | $29 to $50 | Low |
| Small CPA firm (1 to 5 CPAs) | $400 to $800 | $33 to $67 | Low |
| Tax preparation firm (seasonal) | $400 to $700 | $33 to $58 | Low |
| Forensic / valuation specialist | $500 to $1,000 | $42 to $83 | Low to Medium |
| CPA firm with audit attest practice | $500 to $1,200 | $42 to $100 | Low to Medium |
GL is procedural, professional liability is the protection
The honest framing for accountants is that GL is a procedural purchase. Landlords require it on the office lease. Some clients ask for it on commercial engagement letters. State boards rarely require it. The dollar claims that actually damage accounting practices come from professional work, not from premises incidents, and those claims fall under professional liability.
The four-policy stack
Working accounting firms typically maintain four insurance lines. Each covers a distinct exposure. GL is usually the smallest. Professional liability is usually the largest.
| Coverage | Covers | Typical small-firm cost |
|---|---|---|
| General liability (GL) | Third-party bodily injury, property damage, advertising injury | $300 to $1,200 per year |
| Accountants professional liability (E&O) | Errors in tax, audit, attest, advisory work; client financial harm | $800 to $4,000 per year for small firms |
| Cyber liability | Client data breach, ransomware, business interruption | $700 to $2,500 per year |
| Employment practices liability | Wrongful termination, harassment, discrimination | $500 to $1,500 per year |
The AICPA program is the dominant market
The AICPA Professional Liability Insurance Program, administered by Aon Affinity, is the dominant carrier for CPA firms in the United States. It writes both GL and professional liability with policies and limits tailored to accounting practice (carve-outs for attest work, specific coverage for tax positions, defined coverage for consulting on tax planning structures). Most working CPA firms quote through the AICPA program plus one or two non-AICPA specialty markets and compare on price and policy terms.
AICPA program limit guidance
The AICPA program publishes general guidance on appropriate limits by firm size and practice mix. The figures below are typical limit selections, not requirements; actual selections depend on client size, engagement types, and risk tolerance.
| Firm profile | Typical professional liability limits | Typical annual professional liability cost |
|---|---|---|
| Solo CPA (under $250k revenue) | $1M per claim, $1M aggregate | $800 to $1,800 per year |
| Small CPA firm ($250k to $1M revenue) | $1M to $2M per claim | $1,500 to $4,000 per year |
| Mid-size firm ($1M to $5M revenue) | $2M to $5M per claim | $4,000 to $12,000 per year |
| Firm with audit attest practice | $2M to $10M+ per claim | Add 50% to 200% to non-attest base |
| Forensic / litigation support specialist | $2M to $5M per claim | $3,000 to $8,000 per year |
Common claim scenarios
Six scenarios account for most accounting firm insurance claims. The first two are GL claims (low frequency, low severity). The rest are professional liability or cyber claims (low frequency, sometimes very high severity). Cost ranges below are typical settlement ranges, not guarantees, and exclude defence costs (which the carrier covers in addition to the limit).
| Scenario | Coverage type | Typical claim range |
|---|---|---|
| Client slips in your office | GL bodily injury | $5,000 to $20,000 |
| Coffee spilled on client laptop during meeting | GL property damage | $1,000 to $3,000 |
| Tax-prep error triggers IRS penalty | Professional liability | $5,000 to $200,000 |
| Missed deadline costs client tax election | Professional liability | $10,000 to $500,000+ |
| Audit failure missed material misstatement | Professional liability | $50,000 to $5,000,000+ |
| Client tax records breached in ransomware | Cyber liability | $50,000 to $1,000,000+ |
Why GL is still worth buying despite low exposure
Three reasons working accountants carry GL even though the exposure is small. Office leases almost always require $1M occurrence GL as a condition of the lease, and the landlord checks the COI annually. Commercial client engagement letters increasingly require $1M GL as a procurement standard. Combined accountant-business-owners policies bundle GL with property and inland marine at a small marginal cost; carrying it standalone is rarely more expensive than carrying it as part of a package.
Adjacent coverages accounting firms need
Most working accounting firms also carry cyber and employment practices liability. Cyber is increasingly important as firms hold growing volumes of client tax records electronically. Employment practices matters once a firm has employees and grows beyond the principal-only configuration. The table below summarises typical small-firm costs for each adjacent line.
- Cyber liability: $700 to $2,500 per year for $1M of coverage. Covers breach response, ransomware, business interruption, third-party claims arising from breach.
- Employment practices liability (EPL): $500 to $1,500 per year. Wrongful termination, harassment, discrimination claims by current or former employees.
- Commercial property: $300 to $800 per year. Office equipment, furniture, build-out, computer systems.
- Workers compensation: $0.30 to $1.20 per $100 of payroll. Required by most states above one employee, even for office-only operations.
- Excess / umbrella: $500 to $1,500 per million of extra limit. Layer above GL and often above professional liability for high-revenue or high-engagement firms.
How to lower accounting firm insurance spend
Five tactics produce most of the controllable savings on a typical accounting firm insurance schedule. The order below reflects roughly the dollar impact for a $3,500-per-year combined policy set.
- Bundle GL with professional liability and cyber in a combined accountant-business-owners policy. AICPA / Aon Affinity, CPAI, and specialty accountant insurers all write combined policies.
- Confirm the class code matches your actual practice mix. Attest, tax-only, advisory-only all rate differently; misclassification routinely costs 10 to 25 percent of professional liability premium.
- Document client engagement letters, peer review compliance (where applicable), and PCAOB registration (where applicable). Carriers consistently discount for credible compliance files.
- Document security controls for cyber discounts: MFA on email and client portals, endpoint detection, verified backups, written incident-response plan. Worth 5 to 15 percent at most carriers.
- Raise deductibles on professional liability. The $1,000 to $5,000 step typically saves 5 to 10 percent.
- Shop annually across at least three accountant-specialty markets including the AICPA program.