CoCounsel is described as a vertical-specific AI agent designed for modern tax and accounting professionals that automates work such as client review, memo drafting, and compliance checks, and provides explainable outputs if people wonder how the bot came to the conclusions it did. By drawing on multiple sources of information, it can also connect firm knowledge, Checkpoint, IRS code, and internal documents into a single AI-guided workspace.
"This isn't GenAI in a prettier wrapper — it's a fully integrated, intelligent system built to do the work," said Kevin Merlini, vice president of product at Thomson Reuters, and the former CEO of Materia. "Now CoCounsel doesn't just assist — it acts with context, navigates complexity, and integrates directly into how professionals already operate. It's purpose-built for high-stakes work — and it's only the beginning."
The release has been in development for over a year, with the process being materially helped along through the company's
"We're not just rebranding AI assistants. We're engineering full agentic systems — backed by trusted content, custom-trained models, and real domain expertise," David Wong, chief product officer at Thomson Reuters, said. "What others are calling agentic, we've already had in the market. What we're launching now sets a new bar: This is what AI looks like when it's built with real content, trained with real experts, and trusted by the professionals who do real work."
For example, Thomson Reuters intends to next build on its GoSystem Tax Engine to have it not just assist with returns but actually draft them itself, as well as adapt to system feedback and resolve diagnostics on its own. The rollout of agentic systems will continue with expanded capabilities across legal, risk and trade, and compliance domains — including intelligent workflows for intelligent drafting, employment policy generation, deposition analysis, and compliance risk assessments.
