• Liability limits from $100,000 to $10 million
  • Your partners, officers, directors, associates, employees and independent contractors are covered for professional services rendered on your behalf
  • Prior acts coverage for qualified firms
  • Choice of deductibles
  • Pre-claim assistance
  • Cyber risk extension available
  • Ability to reduce your premium with CPA Excellence Rewards

Qualified firms are eligible to receive new CPA Excellence Rewards     

Get a Quote

CPA NetProtect PRIME® 

  • Online Policyholder Resource Center – 30+ sample engagement letters, practice guides, timely risk alerts, and more
  • CNA’s Risk Management Assistance Line – consult with an experienced CPA       
  • Risk Management Training3 – earn up to a 10% premium credit and CPE credit 

Questions? Please call our team of AICPA Risk Advisors at 800.221.3012, Monday – Friday, 8:30 am – 6:00 pm.

1CPA NetProtect PRIME® is offered for an additional premium.
2AICPA Accountants Professional Liability Rate Study, March 31, 2017 (examining data from 2007-2016).
3Fee applies

Aon Insurance Services is the brand name for the brokerage and program administration operations of Affinity Insurance Services, Inc., a licensed producer in all states (TX 13695); (AR 100106022); in CA & MN, AIS Affinity Insurance Agency, Inc. (CA 0795465); in OK, AIS Affinity Insurance Services Inc.; in CA, Aon Affinity Insurance Services, Inc., (CA 0G94493), Aon Direct Insurance Administrators and Berkely Insurance Agency and in NY, AIS Affinity Insurance Agency.

One or more of the CNA companies provide the products and/or services described. The information is intended to present a general overview for illustrative purposes only. It is not intended to constitute a binding contract. Please remember that only the relevant insurance policy can provide the actual terms, coverages, amounts, conditions and exclusions for an insured. All products and services may not be available in all states and may be subject to change without notice. “CNA" is a registered trademark of CNA Financial Corporation. Certain CNA Financial Corporation subsidiaries use the "CNA" trademark in connection with insurance underwriting and claims activities. Copyright ©2020 CNA. All rights reserved.

Aon is the only entity endorsed by the AICPA to provide best-in-class Risk Solutions that help protect the careers and lifestyles of accounting professionals and their families. As a leading global professional services firm, Aon provides a broad range of risk, retirement and health solutions that empower results for our clients.

Business Interruption and Extra Expense

Business Interruption affords coverage for loss of business (net) income that would have been earned during the period of restoration resulting from an exploit causing network impairment.

Extra Expense affords coverage for reasonable and necessary expenditures in excess of normal operating expenses incurred during the period of restoration resulting from an exploit causing network impairment.

Data Restoration (Loss or damage to your network) affords coverage, after an exploit causing network impairment, to restore your network or data on the network to as close to its condition prior to the attack.

The only AICPA-endorsed Professional Liability program.

Innovative Solutions. 

Specialized Services. 

Industry Oversight.


Regulatory Fines and Penalties

Offers a separate limit that does not erode your professional liability policy limit, for certain fees and legal expenses associated with a regulatory investigation, as well as for certain fines and penalties imposed for a violation of privacy breach notification laws. Coverage varies by state.

Network Damage Claim Coverage  

Coverage for claims brought by third parties whose computer networks and information may have been damaged by a wrongful act that resulted in a security breach of the firm’s network. Coverage is provided for wrongful acts by owners, partners and employees of the firm, as well as by ‘rogue employees.’  Now includes Extortion Coverage to assist with ransomware attacks.

Privacy Event Expense Coverage 

Helps pay for expenses associated with a data breach, including notification costs, credit monitoring, public relations assistance, legal expenses, and forensic services.

When you add this cyber liability endorsement to your policy, you receive the following significant coverage extensions for network damage claims, privacy event expenses, and extortion demands.3

Did You Know?


of claims in 2017 involved CPA firms who failed to use an annual engagement letter2   


is the average cost to resolve a consulting professional liability claim3   


is the average cost to resolve an audit professional liability claim3   

CPA Excellence Rewards

You save up to:

Use of Engagement Letters


Risk Management Training Attendance


AICPA Audit Quality Centers and Private Companies Practice Section (PCPS) Membership


Positive Peer Review


Claims-free experience

5% — 15%

Longevity Credit (beginning on First Anniversary)

3% — 13%

Risk Management Resources

  • Lunch and Learn Webinars – earn complimentary CPE credit    
  • Online Education Center – a library of case studies and articles at your fingertips

See how affordable it can be to get best-in-class professional liability insurance for your CPA firm. 

Why settle for "just insurance" when the AICPA-endorsed program gives you so much more?  

Get superior coverage, lower rates, outstanding risk management services and professional advice on how to navigate risks as your firm grows.

  • Guidance to help you establish quality controls to mitigate risks to your firm
  • Unlimited access to CNA's Risk Management Assistance Line - consult with an experienced CPA
  • Advocacy on your behalf as an AICPA member
  • Premium credits for loyalty when you renew with the program - every year after your first renewal
  • Underwritten by one of the CNA underwriting companies
  • Access to exclusive risk management resources and tools

Questions?  Please call our team of AICPA Risk Advisors at 800.221.3023 

Monday-Friday, 8:30 am- 6:00pm, ET