CoCounsel Audit & Accounting
Thomson Reuters’ AI assistant for audit and accounting firms: cited research on FASB, GASB, AICPA and IFRS content, document review and workpapers.
| Founded | Launched in spring 2025 as part of the CoCounsel Tax, Audit and Accounting platform; earlier marketed as CoCounsel Audit |
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| Founders | Built by Thomson Reuters on CoCounsel, created by Casetext (founded 2013, CEO Jake Heller), and on Materia (founded 2022, CEO Kevin Merlini), a builder of an agentic AI assistant for tax, audit and accounting |
| Ownership | Thomson Reuters (TSX/Nasdaq: TRI); Casetext acquired in August 2023 for US$650m in cash; Materia acquired in October 2024 |
| Customers | CoCounsel in use at more than 1,300 firms (November 2025); firms named by Thomson Reuters include Plante Moran, Sensiba, EKB and Harris, Hardy & Johnstone; one million professionals use CoCounsel across Thomson Reuters products in 107 countries and territories |
| What it does | Answers technical accounting and auditing questions with citations to Checkpoint, FASB, GASB, AICPA, IFRS and PPC guides; reviews client documents such as leases and contracts; drafts workpapers, memos, engagement letters and reports; runs multistep audit, compilation and review tasks with templates and agentic AI. Firms that do only preparation, compilation and review work can also use it |
| Recent moves | November 2025: AICPA, FASB, GASB and IFRS content added, plus CoCounsel Document Analysis, a spreadsheet-style grid for audit document review, and Audit Intelligence Test for sample matching; September 2026: partnership with Suralink to bring client-provided documents into CoCounsel Tax, Audit & Accounting |
| Pricing | Not published; demo and sales contact on request |
| Markets | Cloud-native; content centred on US standards (FASB, GASB, AICPA, ASC), with IFRS added in November 2025 |
| Peers | Caseware, MindBridge, DataSnipper, Fieldguide, Inflo |
Why it matters
Thomson Reuters owns the Checkpoint research library and the PPC audit methodology used by about 16,000 US firms, and CoCounsel Audit & Accounting puts AI on top of that content. For firms already working from Checkpoint or PPC, it is the AI assistant closest to the guidance they audit against.
Accountio coverage
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