CPA Practices NAICS 541211

Unlock access to the full platform with more than 900 industry reports and local economic insights.
Get access to this Industry Profile including 18+ chapters and more than 50 pages of industry research.
Industry Summary
The 50,885 CPA practices in the US provide accounting, tax preparation, and auditing services to businesses, non-profit organizations, and individuals. Tax preparation and tax planning work for organizations and individuals comprise about one-third of overall CPA client fees, but are typically over half of client fees for smaller firms. Tax work is about evenly split between individuals and organizations. An additional 33,850 solo accountants operate with no employees and generate $2.4 billion in annual revenue. CPAs are licensed by their State Board of Accountancy.
Liability Exposure
Difficult economic times can cause business owners to blame their advisors for financial difficulties.
Changing Tax Laws and Accounting Standards
Keeping up with changes in complex tax laws and accounting rules is a major challenge for CPA practices, particularly smaller ones.
Recent Developments
Sep 29, 2025 - Accounting Industry Embracing AI and Automation
- Automation and AI are transforming how tax firms get work done, cutting out repetitive tasks and boosting accuracy, according to a recent The Future of Tax Automation webinar from Thomson Reuters. Nearly 80% of tax professionals believe AI will have a major impact on their industry within the next five years, and more than half of firms are already seeing returns from the investments they’ve already made. New tools like optical character recognition, automated verification, and generative AI can scan documents and pull out key data, cross-check for errors, and create detailed summaries. In addition, the Webinar estimated that AI would save accounting pros about 5 hours of busy work per week for a per employee added value to the organization of $24,000. The shift towards automation is especially important as accounting firms face heavier workloads and staffing shortages.
- CPA practices face a staffing shortage after several years of attrition through retirements and middle-aged CPA burnout that has left the accounting industry about 300,000 workers short with not enough fresh recruits to replace them. The US Bureau of Labor Statistics shows CPA firm employment flat throughout 2024 and for the first half of 2025, coming in at -0.2% year over year in June. The shortage is likely to affect CPAs and taxpayers alike. CPAs are overloaded with work - which makes them prone to mistakes and filing errors - leaving many without the bandwidth to take on new clients. Those lost clients can then potentially make their own mistakes doing taxes themselves, creating a domino effect of accounting headaches. The problem could be compounded by the IRS itself, which was already lacking enough accountants to efficiently process 2024 tax returns only to face a 30% auditor staff cut by the Trump administration.
- The US government ended the Internal Revenue Service’s Direct File program, a free electronic tax return system, in mid 2025. Direct File was created during the Biden administration and became quite popular for its time savings and ease of use. Tax prep firms and lobbyists claimed Direct File was unnecessary because free tax filing software programs already exist, although they are difficult to use. The program had been in a holding pattern since the Department of Government Efficiency (DOGE) targeted it for closure at the beginning of the year. The non-partisan Taxpayers Protection alliance supported the move and says Direct File costs too much and of the 450,000 taxpayers who logged into it for the 2024 tax season, only 140,800 of those filed a completed return. A pilot program when it started, Direct File had expanded to half of the US this year’s tax season before being axed.
- CPA credentialing is declining across all company sizes, reflecting a shift in corporate hiring practices and licensing trends, according to INSIDE Public Accounting. Between 2020 and 2024, the average amount of corporate staff that held a CPA license dropped from 56% to 48%. Larger companies report even lower CPA licensing among staff at 41%. The trend is driven by fewer accounting graduates taking the time to complete the 150 hours of required training for a license, as well as firms expanding into non-traditional markets that require different skill sets than traditional accounting. Several states have created different pathways to CPA licensure - such as Ohio, Georgia, and Minnesota - acknowledging the existing process is too expensive and time-consuming. Alternative licensing pathways typically involve graduation with an accounting degree combined with experience in the field and passing a CPA exam.
Industry Revenue
CPA Practices

Industry Structure
Industry size & Structure
The average CPA practice has about 11 employees and generates $2.9 million in annual revenue.
- There are about 50,885 CPA firms in the US employing 572,995 people and generating about $151 billion in annual revenue.
- Any accountant filing a report with the SEC is required to be a Certified Public Accountant (CPA).
- About 86% of firms have less than 10 employees.
- An additional 33,850 establishments are owner-operated with no employees. These solo accountants generate $2.4 billion in annual revenue.
- CPAs are licensed by their State Board of Accountancy. All states require passage of the Uniform CPA Examination prepared by the American Institute of Certified Public Accountants (AICPA) for licensing. Less than half of candidates pass all four parts of the exam on their first try.
- Nearly all states require CPAs to complete a specific number of continuing education hours before their license can be renewed.
Industry Forecast
Industry Forecast
CPA Practices Industry Growth

Vertical IQ Industry Report
For anyone actively digging deeper into a specific industry.
50+ pages of timely industry insights
18+ chapters
PDF delivered to your inbox