Big Four firm Deloitte is the first accounting firm to achieve Diamond-Tier status under Thomsons Reuters’ ONESOURCE Certified Implementer Program.

To achieve Diamond-Tier status, firms need to be certified across the entire ONESOURCE suite of tax applications, lead the highest volume of ONESOURCE implementations, and have a global presence with certified implementers in a minimum of five countries.

Thomson Reuters established the tier status this year in order to further grow and formalize its implementer ecosystem. Gold-Tier firms have to offer at least one product suite and process a high volume of implementations, while Silver-Tier firms must be certified on at least one product suite.

Firms that have achieved Silver-Tier status include some of the largest in the profession, such as BDO, Crowe, EY, Grant Thornton, KPMG and PwC. Until Deloitte achieved Diamond-Tier status, it was the only firm at the Gold level.

The offices of Thomson Reuters in Stamford, Connecticut
The offices of Thomson Reuters in Stamford, Connecticut Chris Ware/Bloomberg

“We’re delighted to welcome Deloitte to the Diamond Tier of CIP,” said Piotr Marczewski, president of the corporate customer segment for Thomson Reuters, in a statement. “Deloitte’s new designation within CIP demonstrates its team’s commitment to our ONESOURCE customer base and to empowering companies with best-in-class tax technology needed for today’s shifting global regulatory landscape.”

“The Deloitte team is thrilled to be recognized as a Diamond-Tier implementer by Thomson Reuters,” added Nathan Andrews, a partner at Deloitte Tax LLP and leader of Deloitte’s tax management consulting national practice. “This distinction highlights our ongoing mission, through our work as a certified implementer of Thomson Reuters’ solutions, to strengthen the bond in companies between tax and the broader organization by enriching the functionality, seamlessness and value-add of ONESOURCE.”

To learn more about Thomson Reuters’ CIP program, click here.

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