Auditing Services Market Report 2026

The auditing services market size has grown strongly in recent years. It will grow from $250.51 billion in 2025 to $263.35 billion in 2026 at a compound annual growth rate (CAGR) of 5.1%. The growth in the historic period can be attributed to increasing regulatory reporting requirements, expansion of corporate governance frameworks, rising complexity of financial transactions, growth in multinational business operations, increased reliance on external audit services.

The auditing services market size is expected to see strong growth in the next few years. It will grow to $330.18 billion in 2030 at a compound annual growth rate (CAGR) of 5.8%. The growth in the forecast period can be attributed to growing adoption of AI-driven audit tools, rising demand for cybersecurity and IT audits, expansion of ESG and sustainability audits, increasing regulatory scrutiny across industries, growing need for real-time assurance services. Major trends in the forecast period include increasing use of data analytics in audit processes, rising demand for continuous auditing models, growing focus on regulatory and compliance audits, expansion of technology-enabled audit services, enhanced emphasis on risk-based auditing.

The increasing level of corporate expenditure on financial auditing and record-keeping is expected to drive the growth of the auditing services market in the coming years. Rising corporate spending on auditing and recording refers to a higher share of organizational budgets being allocated to these activities due to stronger emphasis on financial transparency, regulatory compliance, and robust corporate governance practices. Auditing services support organizations by identifying errors and fraudulent activities in financial statements, ensuring compliance with applicable laws and regulations, strengthening internal control systems, and minimizing overall risk exposure. For example, in January 2025, according to the Financial Education & Research Foundation (FERF), a US-based non-profit organization, the average audit fee for public companies increased by 6.4% in 2023, rising from US $2.83 million in 2022 to US $3.01 million in 2023. Therefore, the growing corporate investment in financial auditing and record-keeping is contributing to the expansion of the auditing services market.

Major companies operating in the auditing services market are increasingly concentrating on the development of innovative solutions, such as AI-based auditing tools, to address the growing need for greater accuracy, reduced manual involvement, and faster audit workflows within complex IT environments. AI-driven auditing solutions automate data analysis, enhance anomaly detection, and improve risk management when compared with traditional manual audit approaches. For instance, in March 2023, Phoenix Technocyber, an India-based provider of technology solutions and auditing services, introduced the TechOwl GRC GAP Assessment Tool, an advanced AI-powered IT auditing solution. The tool applies artificial intelligence and machine learning techniques to analyze large volumes of IT data and identify potential gaps, risks, and vulnerabilities. It improves audit efficiency by automating repetitive tasks, lowering manual effort for auditors, and offering features such as real-time data processing, higher accuracy in risk identification, and improved compliance evaluation for organizations.

In March 2023, Cohen & Company, a US-based assurance, tax, and advisory services firm, acquired the Investment Management Group of BBD LLP for an undisclosed amount. Through this acquisition, Cohen & Company aims to reinforce its market position as a provider of assurance and tax services to the investment sector, while enhancing operational efficiency and gaining access to expanded talent, a wider service portfolio, and advanced technologies across the organization. BBD LLP is a US-based firm specializing in certified public accounting services, providing audit and tax solutions exclusively for not-for-profit organizations.

Major companies operating in the auditing services market are Deloitte, PricewaterhouseCoopers LLP, Ernst & Young Global Limited, KPMG International Cooperative, BDO International Ltd., Baker Tilly US LLP, Nexia International Limited, CliftonLarsonAllen LLP, Moore Global Network Limited, RSM US LLP, Mazars Group, Grant Thornton LLP, FORVIS LLP, Crowe LLP, Moss Adams LLP, Plante Moran PLLC, Eide Bailly LLP, Sikich LLP, Marcum LLP, Armanino LLP, Wipfli LLP, EisnerAmper LLP, Rehmann LLC, Dixon Hughes Goodman LLP, UHY Advisors Inc., Schellman & Company LLC, Sensiba San Filippo LLP, Mayer Hoffman McCann P.C., Squar Milner LLP, Friedman LLP.

North America was the largest region in the global auditing services market size in 2025. Asia-Pacific is expected to be the fastest-growing region in the forecast period. The regions covered in the auditing services market report are Asia-Pacific, South East Asia, Western Europe, Eastern Europe, North America, South America, Middle East, Africa. The countries covered in the auditing services market report are Australia, Brazil, China, France, Germany, India, Indonesia, Japan, Taiwan, Russia, South Korea, UK, USA, Canada, Italy, Spain.

The auditing services market includes revenues earned by entities by providing compliance auditing service, IT auditing, environmental auditing, and tax auditing. The market value includes the value of related goods sold by the service provider or included within the service offering. Only goods and services traded between entities or sold to end consumers are included.

The market value is defined as the revenues that enterprises gain from the sale of goods and/or services within the specified market and geography through sales, grants, or donations in terms of the currency (in USD unless otherwise specified).

The revenues for a specified geography are consumption values that are revenues generated by organizations in the specified geography within the market, irrespective of where they are produced. It does not include revenues from resales along the supply chain, either further along the supply chain or as part of other products.

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