Auditor Changes Roundup: Q1 2026
KPMG LLP recorded the highest net gain among all auditors in Q1 2026 with 17 new engagements and 8 departures for a net of +9. CBIZ CPAs PC and Carr Riggs & Ingram (CRI) LLC each recorded a net gain of 7 clients. Across all auditors, 173 new engagements and 182 departures were filed during the quarter.
+9 KPMG LLP: Net Client Gains, Q1 2026.
$33.97B PricewaterhouseCoopers LLP: Net Market Cap Gained.
+10 Big Four Collective Net Client Gains, Q1 2026.
Among the Big Four, KPMG LLP recorded 17 engagements and 8 departures for a net of +9. Deloitte & Touche LLP recorded 15 engagements and 11 departures for a net of +4. PricewaterhouseCoopers LLP recorded 9 engagements and 7 departures for a net of +2. Ernst & Young LLP recorded 6 engagements and 11 departures for a net of -5. The Big Four collectively recorded 47 new engagements and 37 departures. Of the 47 Big Four engagements, 55% came from other Big Four firms and 30% came from global and national firms. Of the 37 Big Four departures, 73% went to other Big Four firms and 22% went to global and national firms.
Among global and national firms, CBIZ CPAs PC recorded 9 engagements and 2 departures for a net of +7. Forvis Mazars LLP recorded 3 engagements and 2 departures for a net of +1. RSM US LLP recorded 3 engagements and 3 departures. BDO USA PC recorded 4 engagements and 5 departures for a net of -1. Grant Thornton LLP recorded 6 engagements and 8 departures for a net of -2. Baker Tilly Advisory Group LP recorded no new engagements and 4 departures in Q1 2026.
Top Net Auditor Engagements - Q1 2026
| Auditor | Gains | Losses | Net |
|---|---|---|---|
| KPMG LLP | 17 | 8 | 9 |
| CBIZ CPAs PC | 9 | 2 | 7 |
| Carr Riggs & Ingram (CRI) LLC | 7 | - | 7 |
| Assentsure PAC | 8 | 4 | 4 |
| Deloitte & Touche LLP | 15 | 11 | 4 |
Amounts shown in millions USD
Source: Ideagen Audit Analytics
Big Four Net Auditor Engagements - Q1 2026
| Auditor | Gains | Losses | Net |
|---|---|---|---|
| KPMG LLP | 17 | 8 | 9 |
| Deloitte & Touche LLP | 15 | 11 | 4 |
| PricewaterhouseCoopers LLP | 9 | 7 | 2 |
| Ernst & Young LLP | 6 | 11 | (5) |
Amounts shown in millions USD
Source: Ideagen Audit Analytics
Auditor Change Matrix
Public company audit client gains and losses | January 1 – March 31, 2026
Market Cap and Audit Fee Gains
PricewaterhouseCoopers LLP recorded the largest net market capitalization gain at $33.97 billion in Q1 2026, adding $42.7 billion and losing $8.8 billion. KPMG LLP was second at $27.06 billion. Grant Thornton LLP recorded the largest net market capitalization loss at -$31.3 billion.
KPMG LLP recorded the highest net audit fees gained at $20.3 million. Deloitte & Touche LLP was second at $6.2 million, followed by RSM US LLP at $4.9 million, CBIZ CPAs PC at $1.2 million, and Carr Riggs & Ingram (CRI) LLC at $728,000.
Top 5 Net Market Cap Gains - Q1 2026
| Auditor | Net Market Cap Gained |
|---|---|
| PricewaterhouseCoopers LLP | $33.97 |
| KPMG LLP | $27.06 |
| GGF CPA LTD | $1.52 |
| CBIZ CPAs PC | $0.80 |
| HoganTaylor LLP | $0.59 |
Amounts shown in billions USD
Source: Ideagen Audit Analytics,
Top 5 Net Audit Fees Gained - Q1 2026
| Auditor | Net Market Cap Gained |
|---|---|
| KPMG LLP | $20.3 |
| Deloitte & Touche LLP | $6.9 |
| RSM US LLP | $4.9 |
| CBIZ CPAs PC | $1.2 |
| Carr Riggs & Ingram (CRI) | $0.7 |
Amounts shown in billions USD
Source: Ideagen Audit Analytics,
Of the 61 departures from named firms in Q1 2026, 60 were client-initiated dismissals and 1 was an auditor resignation. Of the 121 departures from regional and local firms, 97 were dismissals and 24 were resignations. In aggregate, 157 of 182 Q1 2026 departures (86%) were client-initiated.
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Marie is a CPA and Accounting Research Manager at Ideagen, where she leads the research team and serves as a subject matter expert for Audit Analytics. With thirty years of experience spanning public accounting and corporate finance, Marie began her career at PwC managing audits of SEC registrants and international entities. She later specialized in post-acquisition integration, leading accounting teams, ERP implementations, and financial reporting and analysis. Her diverse leadership experience across accounting, IT, risk management and HR gives her a comprehensive perspective on financial operations and compliance.
