Grant Thornton's certification initially covers OneSource Tax Provision and One Source WorkFlow Manager.

The Thomson line was also expanded in June with the introduction of the OneSource R&D Tax Credit Manager and with additions to the Sabrix line. The latest product release for Sabrix, acquired last year, was a new version of the Sabrix Application Suite, a global transaction tax platform. While many of the features involved taxation outside the U.S., the system also offers a single sign-on function so that users with third-party applications need to enter credentials only once in their network to gain access to Sabrix.