Case study
Tech Mahindra transforms global tax, compliance, and e‑invoicing with ONESOURCE
Tech Mahindra — a global technology leader — streamlines compliance, enhances accuracy, and drives major cost and efficiency gains with the Thomson Reuters ONESOURCE ecosystem
International consulting
Tech Mahindra, the technology arm of the Mahindra Group, is a $6.6 billion global consulting and transformation services provider with 150,000 associates. “Our heritage is Indian and we're headquartered in India, but we have a global size and scale in terms of serving every major country, every major time zone across the globe,” shares Aditi Sarao, Global Client Partner. The company serves clients across banking, insurance, manufacturing, retail, healthcare, and high tech.
150,000
Associates globally
$6.6B
Annual revenue
25
Years of partnership with Thomson Reuters
Accounting in multiple countries
As Tech Mahindra expanded, managing tax accounting and e-invoicing across multiple countries became increasingly complex. “It becomes quite complex to navigate. And then I think a product like Thomson Reuters has been... instrumental in enabling, the kind of seamlessness that we expect,” says Sarao. The company also underwent significant internal transformation, including a new CEO and management team, and a renewed focus on agility and technology adoption.
“We've now developed a 360 degree partnership. What that means is, whilst Tech Mahindra does technology work for Thomson Reuters, we are ourselves users of the ONESOURCE technology.”
Aditi Sarao
Global Client Partner, Tech Mahindra
Why ONESOURCE
- Reduce compliance operations costs by 50% with automated indirect tax, e-invoicing, and tax provision on a single ONESOURCE platform
- Lower e‑invoice errors and rejections in high‑volume markets, improving cycle time and accuracy
- Centralize audit‑ready repository documentation for faster audit response and consistent controls
- Align phased rollouts with local mandate timelines, scaled across 100+ jurisdictions
“After evaluating the market, Tech Mahindra selected ONESOURCE for its extensive country coverage, real‑time content updates, and the ability to integrate Indirect Tax, e‑invoicing, and U.S. Tax Provision on one platform delivering ~50% cost reduction, better data quality, and audit‑ready operations across 100+ jurisdictions.”
“End‑user pilots validated usability; Tax leadership built the ROI case; CIO/IT confirmed feasibility; Procurement/CFO approved. Rollout proceeded in phases by country to meet e‑invoicing mandates.”
360-degree partnership
Tech Mahindra’s partnership with Thomson Reuters spans 25 years, evolving into a “360-degree partnership.” “We've now developed into a 360 degree partnership. What that means is that whilst, Tech Mahindra does... technology work for Thomson Reuters... we've also ourselves users of the one source technology,” Sarao explains. Tech Mahindra was among the first to implement ONESOURCE Pajero after its acquisition, supporting both internal operations and client solutions. The partnership extends to co-selling and joint market expansion, especially in emerging markets like the Middle East, Africa, and Asia.
While the transcript does not provide specific quantitative metrics, it highlights strategic and operational benefits:
- Tech Mahindra’s teams are “extremely appreciative of, the kind of, benefits that they've seen in the tax accounting space or in the e-invoicing space of having implemented Thomson Reuters Solutions.”
- The partnership has enabled success in oil and gas, financial services, and ERP transformation projects in the UK and Europe.
- The joint go-to-market strategy is driving growth in new regions and industries.
- Sarao notes, “Yesterday at our keynote here at synergy, the number that was cited was $200 million annually, which gives a lot of confidence to the market that there's continuous kind of infusion of the right technology that's happening within your product.”
Data accuracy that you can rely on
Sarao emphasizes the value of Thomson Reuters’ technology investments and integrated product suite: “What I tell my clients... why they should, select Thomson Reuters products and work with them is because they have an extremely great... story in terms of the data accuracy... and also the kind of artificial intelligence enabled products that they have come out with in the market, which are really best in class.” The partnership has also fostered a culture of trust, innovation, and continuous learning, with Tech Mahindra sponsoring and participating in Synergy, Thomson Reuters’ flagship customer event.
Overall Experience
Sarao highlights the ease of use, flexibility, and data richness of ONESOURCE: “There's a lot of flexibility within your products for the actual users to be able to do their work more efficiently... your entire product suit is extremely data rich.” She also values the collaborative approach: “The kind of integrity that we bring to the table, has helped us... work extremely well together.”
Future Outlook
Tech Mahindra sees ONESOURCE as central to its long-term strategy, enabling seamless, scalable, and innovative solutions for global tax and compliance challenges.
At a glance
Industry
Technology & Software
Headquarters
Pune, Maharashtra, India
Solutions
Thomson Reuters ONESOURCE
(Indirect Tax, Pagero e-invoicing)
Year founded
1986
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