Audit and assurance services market seen topping $157.63 billion by 2030

The global audit and assurance services market is projected to grow from $109.5 billion in 2025 to $157.63 billion by 2030, driven by fraud risks, tighter compliance and digital audit tools. North America leads today, while Asia-Pacific is expected to post the fastest growth.

Why it matters: - Audit and assurance services are becoming more central as companies face higher expectations for transparency, compliance and fraud detection. - The market’s growth signals rising demand for independent checks on both financial and non-financial reporting. - Expanding use of ESG assurance, cybersecurity audits and continuous monitoring points to a broader role for audit firms in corporate risk management.

What happened: - The Business Research Company projected the global audit and assurance services market will rise from $109.5 billion in 2025 to $118.15 billion in 2026. - The report forecast the market will reach $157.63 billion by 2030. - The company said the market will grow at a CAGR of 7.9% from 2025 to 2026 and 7.5% through 2030. - The report was published Sept. 17, 2026, in London. - The company released a free sample of the report and the full market report.

The details: - The market’s 2025-2026 growth is linked to more complex financial reporting standards, higher compliance demands, rising corporate fraud, globalization and stronger corporate governance. - The forecast period is expected to be supported by ESG reporting assurance, predictive risk assessment tools, digital transformation of audit processes, cybersecurity and IT audits, and real-time monitoring. - The report highlighted a shift toward risk-based audit methods, continuous auditing, tighter verification of regulatory compliance, greater demand for transparent financial disclosures and integrated assurance services. - Audit and assurance services are defined as independent professional evaluations of financial and non-financial information to verify accuracy, completeness and reliability. - The process typically includes systematic analysis, record verification and testing of controls and procedures to detect material misstatements or inconsistencies. - The report said North America held the largest market share in 2025. - The report said Asia-Pacific will be the fastest-growing region over the forecast period. - The report also covers South East Asia, Western Europe, Eastern Europe, South America, the Middle East and Africa.

Between the lines: - Rising fraud risk is helping turn audit services from a compliance function into a broader defense against financial and cyber weaknesses. - The emphasis on ESG, continuous auditing and real-time monitoring suggests buyers want faster, more automated assurance rather than periodic checks alone. - Regional growth patterns suggest mature markets are still the biggest revenue base, while faster adoption in Asia-Pacific may drive the next wave of expansion. - In October 2025, the Central Bank of Ireland reported Irish Payment Service Providers recorded $173 million (€160 million) in fraudulent transactions in 2024, up 24.5% from $139 million (€129 million) in 2023.

What's next: - Audit firms are likely to invest more in digital tools, predictive analytics and cybersecurity expertise as client needs expand. - Demand should continue to rise for services tied to ESG disclosures, real-time controls and regulated reporting. - The market report’s updated features include market attractiveness scoring, TAM analysis, company scoring matrix graphics, Excel forecasting dashboards, market hotspots infographics, and future trend analysis. - The Business Research Company listed Saumya Sahay as a contact for more information, along with email and regional phone numbers.

The bottom line: - Audit and assurance is moving deeper into corporate risk, compliance and digital oversight, and the market size reflects that broader mission.