Thomson Reuters unveils agentic AI solutions across Tax, Audit, Accounting, and Legal, introducing ONESOURCE+ and enhanced CoCounsel capabilities to automate complex, multi-step workflows.

ONESOURCE+ is framed as an Intelligent Compliance Network unifying tax, trade, legal, and risk tools, including ONESOURCE Sales and Use Tax AI for auto-filing and a 40-60% reduction in prep time, plus ONESOURCE Global Classification AI for faster HS code classification and audit-ready documentation with clear rationales.

CoCounsel adds agents like Ready to Review for automated US 1040 prep and will roll out CoCounsel Document Analysis in January 2026 to automate large-scale audits and extract data with cited workpapers, freeing accounting pros for judgment work.

Practical Law Drafting Language accelerates drafting by prompting clause locations, cutting navigation time while preserving drafting standards.

Real-world impact is highlighted by client anecdotes, such as a partner at a boutique firm reporting significantly faster summaries and timelines.

Beta testing is set to expand in the coming months to include more users and capabilities.

The approach centers on augmenting human work, reducing brute-force searches while requiring humans to perform critical high-value checks and interpret results.

Bulk Document Review enables uploading large document sets and producing organized, sortable results to speed discovery, due diligence, regulatory reviews, and contract analysis.

Litigation research is accelerated through access to Westlaw content, using Deep Research, mischaracterization detection, and verified citations to boost accuracy and speed.

Beta feature supports high-volume analysis of up to 10,000 documents with structured outputs for faster reviews in litigation discovery and related workflows.

Phase 2 will enable repeatable, firm-specific processes that leverage Westlaw, Practical Law, and the firm’s institutional knowledge for consistency.

Industry discussion emphasizes practical workarounds to AI context-window limits and differentiating products through workflow customization and reliability rather than claiming exponential AI growth.