Thomson Reuters ONESOURCE+
Power your enterprise with an intelligent compliance network
Evolve your business with the only provider unifying tax, trade and legal backed by our trusted content, advanced AI such as CoCounsel, and enterprise‑grade security
Move from siloed workflows to connected compliance
Today's leading organizations face unprecedented complexity, from fragmented compliance functions and rising risk to the rapid pace of AI-driven change.
The future of business is integration
Transform disconnected cost centers into a strategic advantage. Powered by our CoCounsel AI, ONESOURCE+ solutions enable teams to collaborate across disciplines, make smarter and faster decisions with connected insights, and adapt confidently to regulatory change.
The data is clear — consolidating tools drives better outcomes, according to Forrester research
69%
69% of decision-makers agree that unified technology solutions help reduce data silos between tax, trade and legal — unlocking more seamless collaboration.
66%
66% of leaders report that a unified solution incorporating tax, trade and legal workflows and data improves their ability to manage global compliance.
61%
of organizations value unified solutions for better managing costs and complexity associated with emerging tariffs and regulatory changes.
*Source: Forrester Consulting, "AI Meets Governance and Compliance: Enabling Cross‑Functional Intelligence to Accelerate Strategic Execution," October 2025. Commissioned by Thomson Reuters.
Want the full picture on intelligent compliance?
Partnership in practice
Move faster and with less risk
We embed trusted content and AI directly into your systems and workflows through strategic partnerships with leading platforms like SAP, Oracle and Workday. These integrations help tax, trade and legal teams accelerate adoption of ONESOURCE+ solutions, enabling automated compliance, embedded workflows, and other critical functions within your existing enterprise resource planning (ERP) and business software.
Professionals can trust ONESOURCE+ to provide an intelligent network of solutions across compliance functions
Tax, audit, and accounting
Fragmented tax processes slow reporting and increase risk. Improving accuracy and compliance is the top goal for 66% of tax leaders, and integrated tax solutions help deliver more accurate reporting and audit readiness.*
ONESOURCE+ unifies indirect and direct tax, e-invoicing, and regulatory compliance — powered by AI and trusted content.
Trade and supply
Global expansion and trade compliance complexity require connected solutions. Over half (58%) of trade leaders aim to leverage trade agreements for better outcomes, and integrated trade solutions help optimize agreements and compliance.*
ONESOURCE+ utilizes solutions such as Global Trade Management and Denied Party Screening to streamline operations.
Legal
High legal spend and slow contract review hold businesses back. Research shows that 56% of legal leaders cite maintaining compliance as their top priority, and organizations with unified legal solutions report improved compliance and faster contract turnaround.*
ONESOURCE+ connects CoCounsel Legal, Practical Law, Westlaw, and more for faster, smarter legal operations.
*Source: Forrester Consulting, "AI Meets Governance and Compliance: Enabling Cross‑Functional Intelligence to Accelerate Strategic Execution," October 2025. Commissioned by Thomson Reuters.
Frequently asked questions
ONESOURCE+ represents the holistic portfolio of Thomson Reuters Corporates, built to assist your organization across tax, trade and legal disciplines. It is not a single platform, but rather a connected network of best-in-class products that deliver cross-functional compliance outcomes.
ONESOURCE+ expands beyond the ONESOURCE brand — which today covers our tax and trade products — by unifying tax, trade and legal into an AI‑powered intelligent compliance network with shared data and embedded integrations to drive faster, more connected outcomes across your enterprise. Your existing ONESOURCE tax and trade products and logins continue to work as they do today.
ONESOURCE+ is unique in its breadth across tax, trade and legal functions, built on a foundation of Thomson Reuters trusted content, deep industry expertise, and proven AI capabilities. Unlike point solutions or single-domain providers, we offer an integrated intelligent compliance network that connects compliance across your entire enterprise.
No new implementation is required. If you're already using our solutions, you're part of the Thomson Reuters ONESOURCE+ intelligent compliance network. If you're interested in adding new solutions or enhancing integrations between existing ones, your customer success team can help plan that expansion.
You will become part of our intelligent compliance network — gaining access to trusted content, expert guidance, and professional-grade AI capabilities to utilize across your business.
To learn what's available for your organization, contact a Thomson Reuters representative.