What customers have experienced with ONESOURCE+: Insights from a Forrester TEI study

Compliance has long been treated as a cost center—a necessary overhead that slows teams down and keeps executives up at night. But something is changing. Organizations that have deployed Thomson Reuters ONESOURCE+, the AI-powered Intelligent Compliance Network, are telling a different story: one of speed, confidence, and competitive advantage.

In 2026, Thomson Reuters commissioned Forrester Consulting to quantify that story in an independent Total Economic Impact™ (TEI) study. The results, which are for a composite organization based on interviews with Thomson Reuters customers across financial services and manufacturing, are striking. But numbers alone don’t capture what it actually feels like to move from fragmented, manual compliance to an interconnected, AI-driven compliance network that enables confident decision making at scale (TEI p.2).

_{Source: Forrester Consulting, “The Total Economic Impact™ of Thomson Reuters ONESOURCE+,” commissioned by Thomson Reuters, October 2025.}

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From fragmented chaos to a single source of truth

Before ONESOURCE+, the organizations Forrester interviewed were dealing with challenges many compliance leaders know all too well: too many tools, too little visibility, and too much manual work holding skilled people back. Teams relied on spreadsheets, siloed databases, and disconnected workflows to manage tax, trade, legal, and risk requirements—often duplicating effort across departments and leaving dangerous compliance blind spots. [TEI p.5]

As organizations scale, these fragmented systems don’t just slow teams down, they break under the weight of cross-functional interdependencies, where manual coordination can no longer keep pace with regulatory complexity.

The consequences with fragmented workflows were measurable. Onboarding customers and merchants could take days or weeks. Regulatory exams require manual data pulls and large team mobilizations. Export sales orders sat in approval queues for two to three days at a time. And every quarter, the threat of non-compliance loomed over millions in potential fines. [TEI p.5]

–Melissa Bodner, Atricure, Corporates Legal Customer

The move to ONESOURCE+ didn’t just replace old tools—it replaced the operating model entirely.

What customers are actually experiencing

The Forrester TEI study surfaced three categories of quantified benefits; each grounded in real customer outcomes. [TEI p.4] Here’s what that looks like on the ground:

_{Sources: ¹ Forrester Consulting, “The Total Economic Impact™ of Thomson Reuters ONESOURCE+,” commissioned by Thomson Reuters, October 2025.}

Stopping fraud before it starts

One of the most striking findings was fraud prevention. Customers reviewed in the study reported moving from reactive, post-incident detection to proactive, real-time screening. Automated identity verification, sanctions screening, and continuous transaction monitoring replaced manual processes that routinely missed early warning signs.

“We went from catching fraud after the fact to preventing it before it happened. Thomson Reuters helped us mitigate fraud by 95%.”— Senior Risk Manager, Enterprise Risk, Financial Services — Forrester TEI Study, p. 8

The Forrester study modeled a 95% reduction in fraud risk for the composite organization, translating to $1.0 million in risk-adjusted present value over three years. [TEI p.7]

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How does AI‑enabled compliance unify legal, risk, tax, and trade workflows?

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Efficiency gains that actually stick

The operational impact of ONESOURCE+ extends far beyond any single function. Across legal, risk, tax, and trade departments, Forrester found an average of 20 hours saved per employee per month.

The cumulative effect: $11.8 million in risk-adjusted operational efficiency gains over three years. [TEI p.9]

What does that look like in practice?

• Foreign Trade Zone management that once required seven full-time employees was able to run with three after adopting ONESOURCE+.
• Export sales order approvals that took two to three days completed in seconds.
• Legal research and document review tasks previously consuming paralegals’ time were handled in minutes with ONESOURCE+ AI capabilities.
• One interviewee described completing equity research across more than 100 companies—a task that once took weeks and required 50–70 staff—in a matter of hours. [TEI p.9]

These gains are not just about automation, but about enabling teams to operate with greater confidence, freeing them to focus on higher-value decisions rather than manual reconciliation.

–Aditi Sarao, Techmahindra, Corporate Tax Customer, Thomson Reuters Partner

Cost savings that go beyond the obvious

Customers also described the quiet cost of the status quo: outdated compliance databases, manual screening tools, and fragmented reporting platforms that required constant IT support to keep running—and still fell short. ONESOURCE+ replaced this patchwork with a connected compliance ecosystem, saving nearly $128,000 in avoided legacy system costs annually. [TEI p.13]

One platform. Four domains. Endless reach.

A recurring theme in customer interviews was the power of connection—not just between tools, but across functions. ONESOURCE+ brings together tax, trade, legal, and risk into a single Intelligent Compliance Network, built to manage cross-functional interdependencies and deliver consistent, auditable outputs across the business.

It’s powered by Thomson Reuters fiduciary-grade AI, including CoCounsel, combined with 150+ years of trusted content and cross-domain expertise, ensuring decisions are not just automated, but defensible and reliable.

With 200+ APIs, ONESOURCE+ integrates directly into existing ERP, CRM, and trade systems—embedding compliance into everyday workflows rather than adding it afterward. And with cloud-native, enterprise-grade infrastructure, organizations can scale compliance without scaling complexity or headcount.

Discover how ONESOURCE+ can simplify and connect your compliance ecosystem.

_{The Total Economic Impact™ of Thomson Reuters ONESOURCE+ was commissioned by Thomson Reuters and delivered by Forrester Consulting. It is not meant to be used as a competitive analysis. Forrester makes no assumptions as to the potential ROI that other organizations will receive.}

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