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Chosen by changemakers

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[H2] Solutions that shape what comes next

For 175 years, we have helped professionals move faster, act with confidence, and deliver work that stands up to scrutiny.

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Tax and accounting

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Reuters

[H2] Fiduciary-Grade AI™: Built for work you can stand behind

In high-stakes work, professionals need to make faster decisions, gain sharper insights, and drive greater impact. Using our AI — grounded in authoritative content, deep domain expertise, rigorous data governance, and expert support — you can move faster and work better without compromising your standards.

[H3] CoCounsel: Chosen by 1 million users globally

Built on the principles of Fiduciary-Grade AI, CoCounsel is the AI of choice for professionals who need to deliver defensible work, uncover value, and reduce friction across complex workflows.

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[H2] New and noteworthy

[H3] Thomson Reuters ONESOURCE+: Your intelligent compliance network

Are disconnected tools and manual tasks creating blind spots for your business? ONESOURCE+ brings tax, trade, legal, and risk together in an AI‑powered, connected approach so teams collaborate faster, see risks sooner, and make smarter decisions.

Discover ONESOURCE+

[H3] 2026 AI in Professional Services Report

The 2026 AI in Professional Services Report (formerly Generative AI in Professional Services Report) reveals how AI is reshaping the legal, tax, accounting, risk, fraud, and government sectors. This year’s findings highlight where generative AI (GenAI) and agentic AI are gaining traction, how expectations and business models are evolving, and what leaders must do to prepare as AI becomes a core pillar of professional work — now and in the years ahead.

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[H3] ONESOURCE Indirect Tax named a leader in two IDC MarketScape Vendor Assessments

In today’s rapidly evolving global marketplace, tax compliance has become increasingly complex for multinational corporations. At Thomson Reuters, we’re committed to empowering our customers with technology that not only ensures compliance but also enhances their competitive edge.

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[H3] Future of Professionals Report 2025

The Thomson Reuters Future of Professionals Report 2025 reveals how AI continues to shape professional work — and what it takes to get ahead. This year’s report shows that increased efficiency, productivity, and cost savings top the list of benefits professionals attribute to AI, making it indispensable for organizations facing rapid change.

Download the report

[H3] Thomson Reuters ONESOURCE+: Your intelligent compliance network

Are disconnected tools and manual tasks creating blind spots for your business? ONESOURCE+ brings tax, trade, legal, and risk together in an AI‑powered, connected approach so teams collaborate faster, see risks sooner, and make smarter decisions.

Discover ONESOURCE+

[H3] 2026 AI in Professional Services Report

The 2026 AI in Professional Services Report (formerly Generative AI in Professional Services Report) reveals how AI is reshaping the legal, tax, accounting, risk, fraud, and government sectors. This year’s findings highlight where generative AI (GenAI) and agentic AI are gaining traction, how expectations and business models are evolving, and what leaders must do to prepare as AI becomes a core pillar of professional work — now and in the years ahead.

Download the report

[H3] ONESOURCE Indirect Tax named a leader in two IDC MarketScape Vendor Assessments

In today’s rapidly evolving global marketplace, tax compliance has become increasingly complex for multinational corporations. At Thomson Reuters, we’re committed to empowering our customers with technology that not only ensures compliance but also enhances their competitive edge.

Access the excerpts

[H3] Future of Professionals Report 2025

The Thomson Reuters Future of Professionals Report 2025 reveals how AI continues to shape professional work — and what it takes to get ahead. This year’s report shows that increased efficiency, productivity, and cost savings top the list of benefits professionals attribute to AI, making it indispensable for organizations facing rapid change.

Download the report

[H2] Featured insights

[H3] 2026 AI in Professional Services Report

The 2026 AI in Professional Services Report reveals how AI is reshaping the legal, tax, accounting, risk, fraud, and government sectors. Drawing on perspectives from more than 1,500 professionals, this year’s report reveals where GenAI and agentic AI are gaining traction, how expectations and business models are evolving, and what leaders must do to prepare as AI becomes a core pillar of professional work — now and in the years ahead.

Download the report

[H3] Introducing Our First CoCounsel Guided Workflows

Thomson Reuters is launching its first production-grade workflows on CoCounsel that handle the messy, multi-step work most AI tools can't touch, and making them easy to use.

Read the blog

[H3] Future of Professionals Report 2025

The Thomson Reuters Future of Professionals Report 2025 reveals how AI continues to shape professional work — and what it takes to get ahead. This year’s report shows that increased efficiency, productivity, and cost savings top the list of benefits professionals attribute to AI, making it indispensable for organizations facing rapid change.

Read the report

[H2] Customer support

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We want our products to provide you with optimum efficiency. Find technical support, product updates, training sessions, and more.

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[H3] Get in touch

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[H2] Press releases

[H3] Thomson Reuters Standard for High Stakes AI

Thomson Reuters (TSX/Nasdaq: TRI), a global content and technology company, today shared its standard for Fiduciary-Grade AI™, a higher benchmark for AI used in professional contexts where accuracy, accountability, and trust are critical. Fiduciary-Grade AI is purpose-built for professionals operating under duties of care and regulatory oversight. It is grounded in authoritative, domain-specific content, protected by rigorous privacy and security safeguards, shaped by subject-matter experts, and designed to deliver transparent, verifiable outputs.

May 27, 2026

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[H3] Thomson Reuters to Present at CIBC Technology & Innovation Conference

Toronto, May 18, 2025 – Steve Assie, General Manager, Global Large Law Firms and Erin Brown, Head of Finance, Corporates at Thomson Reuters (TSX/Nasdaq: TRI) will both present at the CIBC Technology & Innovation Conference on Thursday, May 21, 2026 at 11:40 a.m. EDT. The presentation may include forward-looking information.

May 18, 2026

Read the full press release

[H3] Thomson Reuters and Anthropic Expand Partnership to Connect Claude with CoCounsel Legal

Thomson Reuters (TSX/Nasdaq: TRI), a global content and technology company, today announced a new Model Context Protocol (MCP) integration with Anthropic that connects Claude directly to CoCounsel Legal. Legal professionals can now move seamlessly between general-purpose AI and citation-grounded legal work, from either working environment. As MCP integrations proliferate across the legal market, Thomson Reuters is bringing something distinct: fiduciary-grade AI that follows the work, for accuracy, accountability and trust.

May 12, 2026

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Thomson Reuters

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Our technology powers the professionals who are shaping the world. Meet the changemakers

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Contact us

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News and data

Contact our Reuters.com team for help with article corrections and feedback, press releases, copyright and reprints, technical support and general customer service inquiries. Submit manuscript proposals, pleadings, verdicts or other contributions for consideration to serve the legal, regulatory and business information markets.

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Access information for shareholders, including annual and quarterly reports, webcasts, and financial statements. Contact a member of our public relations team.

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Where smart data and human expertise lead to forward thinking and creative solutions.

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[H3] Call Us

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Do not sell or share my personal information and limit the use of my sensitive personal information

Our technology powers the professionals who are shaping the world. Meet the changemakers

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[H1] Thomson Reuters ONESOURCE+
[H2] Power your enterprise with an intelligent compliance network
Evolve your business with the only provider unifying tax, trade, legal, and risk backed by our trusted content, advanced AI such as CoCounsel, and enterprise‑grade security

Contact us about ONESOURCE+

[H2] 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.

[H3] 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.

[H2] The data is clear — consolidating tools drives better outcomes, according to Forrester research

[H3] 69%
of decision-makers agree that unified technology solutions help reduce data silos between tax, trade, legal, and risk — unlocking more seamless collaboration.

[H3] 66%
of leaders report that a unified solution incorporating tax, trade, legal, and risk workflows and data improves their ability to manage global compliance.

[H3] 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.

[H3] Want the full picture on intelligent compliance?

Read the full Forrester study

[H2] Partnership in practice

[H3] 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 Oracle, Workday, and Icertis. These integrations help tax, trade, legal, and risk teams accelerate adoption of ONESOURCE+ solutions, enabling automated compliance, embedded workflows, risk management, and other critical functions within your existing enterprise resource planning (ERP) and business software.

[H2] Professionals can trust ONESOURCE+ to provide an intelligent network of solutions across compliance functions

[H3] 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.

Explore solutions

[H3] 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.

Explore solutions

[H3] 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.

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[H3] Risk and fraud

Siloed investigations and onboarding delays expose organizations to fraud and compliance blind spots. Among risk leaders, 61% prioritize fraud minimization, and unified solutions enable faster, more accurate fraud detection and risk management.*

ONESOURCE+ brings together some of our flagship risk solutions like CLEAR, CLEAR Risk Inform, CLEAR ID Confirm, and CLEAR Adverse Media for holistic risk management.

Explore solutions

*Source: Forrester Consulting, "AI Meets Governance and Compliance: Enabling Cross‑Functional Intelligence to Accelerate Strategic Execution," October 2025. Commissioned by Thomson Reuters.

[H2] Frequently asked questions

What is Thomson Reuters ONESOURCE+?

ONESOURCE+ represents the holistic portfolio of Thomson Reuters Corporates, built to assist your organization across tax, trade, legal, and risk disciplines. It is not a single platform, but rather a connected network of best-in-class products that deliver cross-functional compliance outcomes.

What's the difference between ONESOURCE+ and the ONESOURCE products I currently use today?

ONESOURCE+ expands beyond the ONESOURCE brand — which today covers our tax and trade products — by unifying tax, trade, legal, and risk 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.
If you're an existing ONESOURCE customer, sign in to your current ONESOURCE products.

How is ONESOURCE+ different from competitors?

ONESOURCE+ is unique in its breadth across tax, trade, legal, and risk 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.

Is there any new implementation required to use ONESOURCE+?

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.

I'm a current corporate risk or legal solutions customer. How do I benefit from ONESOURCE+?

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.

Thomson Reuters

Do not sell or share my personal information and limit the use of my sensitive personal information

Our technology powers the professionals who are shaping the world. Meet the changemakers

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[H1] ProView legal and tax e-books

You know the question; ProView eBooks help find the answer
[H2] Access trusted content, find answers quickly, and take your e-books anywhere while enjoying online and offline flexibility with thousands of legal and tax titles

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[H2] Boost your efficiency with time-saving tools for legal, tax, and accounting professionals

[H3] Consistent experience across devices for seamless research with ProView

Enjoy a consistent, book-like reading experience with ProView on any device: laptop, smartphone, tablet, or desktop. Seamlessly switch between devices without losing your place and take advantage of advanced features like annotations and bookmarks. Perfect for legal, tax, and accounting professionals who need reliable access to trusted content anytime, anywhere.

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[H3] Find trusted answers faster
Quickly access the information you need with ProView's efficient browsing history, annotations, and saved-search functionality. These features enable you to seamlessly navigate your e-book library, revisit essential sections, and streamline your research process.

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[H3] Powerful search and filtering offers quick, precise research

Enhance your research efficiency with ProView's advanced capabilities. Easily search or filter keywords and exact phrases within a single e-book or across your entire library. This powerful feature allows you to quickly locate the information you need, providing deeper insights and streamlining your workflow for more productive legal, tax, and accounting research.

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[H3] Access your library anywhere, anytime with offline access

Access e-books directly from your browser with offline access; you don't need an internet connection or installed app. Enjoy seamless reading and research with ProView, ensuring flexibility to work from anywhere, anytime. Perfect for legal, tax, and accounting professionals who need reliable access to trusted content on the go.

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[H2] Research anywhere and work smarter with ProView

[H3] Empower your legal and tax practice with flexibility, productivity, and trusted insights

Thomson Reuters ProView is uniquely built by professionals for professionals, delivering a user-friendly platform that ensures quick access to the trusted content you need. Its built-in portability allows you to carry thousands of legal and tax titles wherever your work takes you, with seamless online and offline access. ProView empowers you to find answers swiftly and work efficiently, no matter where you are. Discover the power of a professional e-reader designed with your needs in mind.

[H3] Instant expertise

Reference thousands of titles covering a multitude of jurisdictions and practice areas, even without internet access.

[H3] Effortless productivity

See your notes, bookmarks, and highlighted text on multiple devices and automatically transfer them to new editions.

[H3] Rapid reliability

Quickly find answers with intuitive search capabilities, whether within a single title or across your entire library.

[H2] Shop ProView titles to find essential legal and tax resources tailored to your practice area in your country or region

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