Client Testimonials

The strength of the ONESOURCE™ Tax Provision solution lies in its ability to solve real world corporate tax challenges across a wide span of industries, sizes, and structures. Because ONESOURCE™ Tax Provision is flexible and easy to use, our clients not only buy the software, they use it. We believe that the best recommendation our software can receive is from the companies that use us.

Take a look below to see some of the things our clients are saying about their ONESOURCE™ Tax Provision experience. You can also use the quick links to the right to jump directly to testimonials of a specific company.


Schneider Electric US - Industrial Manufacturing

"We chose ONESOURCE™ Tax Provision over other vendors because we felt that they had the most comprehensive tax provision software on the market. We were impressed with the software's capabilities, its ease of use and its ability to interact with our tax compliance software."

- Schneider Electric US
Back to Top


Paradigm Geotechnology Holdings BV - Computer Software (Energy & Utilities)

"We chose ONESOURCE™ Tax Provision because we wanted to streamline our provision process by having standardized reports and being able to analyze and manage taxes on the corporate level. We believe that ONESOURCE™ Tax Provision is superior to its competitors due to its ease of use. The reports were easy to use and did not require customization. By using ONESOURCE™ Tax Provision we were able to cut down the time we spend running reports and analyzing data."

- Paradigm Geotechnology Holdings BV
Back to Top


Erie Indemnity Company - Insurance

     "We had originally chosen a different vendor, however, we were very disappointed by their implementation efforts. So, during a seminar I attended I asked some of the other attendees what software they used and a number of them said ONESOURCE™ Tax Provision. They were all satisfied with the product.
     "We wanted to eliminate a reliance on using Excel spreadsheets to prepare our provisions. We wanted a better way to make sure that temporary differences were recorded in both the current and deferred taxes. With spreadsheets there is too much room for error".
     "ONESOURCE™ Tax Provision has given us a reliable easy to use vehicle to calculate our provisions and has reduced the tax information manually input into spreadsheets each month.

- Erie Indemnity Company
Back to Top


Arch Chemicals - Chemicals

"We chose ONESOURCE™ Tax Provision over other vendors because it was easy to use and intuitive. We wanted to improve controls as well as gain accuracy and efficiency. ONESOURCE™ Tax Provision gave us a higher sense of control over our tax provision process. We were able to significantly save time and improve our sense of accuracy."

- Arch Chemicals, Inc.
Back to Top


Esterline Technologies - Aerospace & Defense

"We chose ONESOURCE™ Tax Provision because it had greater functionality than other vendors and was an internet based application. ONESOURCE™ Tax Provision met our needs for uniformity, consistency, monitoring, speed and enhanced reporting with its standardized formatting, audit trail and numerous reports."

- Esterline Technologies Corporation
Back to Top


Asbury Automotive Group, Inc. - Retail - Fortune 500

     "We wanted to streamline our manual tax work and eliminate potential formula errors associated with Excel. ONESOURCE™ Tax Provision came with the highest recommendation from our public accountants, and I liked the fact that the software came with a lot of networking at the annual User Conference.
     "I like the reports that ONESOURCE™ Tax Provision generates, the functionality, and the fact that TaxStream's software engineers are continuously working to improve the software.
     "In addition, our implementation manager has been extremely helpful. She has been available at all times that we've needed her, and is extremely knowledgeable about the software and about the provision process. She has really made the experience a pleasant one."

- Asbury Automotive Group, Inc.
Back to Top


Westlake Chemical Corporation - Chemicals - Fortune 1000

     "The ONESOURCE™ Tax Provision model has proven to be easy to use and to standardize the input and output process. The biggest advantage has been the ability to make changes quickly and run what-if scenarios. The best part of the implementation was the department took the time to upgrade and standardize the provision process. It also set up by account tax basis balance sheets which are now updated twice a year.
     "I would definitely recommend ONESOURCE™ Tax Provision and have encouraged others that are still using excel to consider the product."

- Westlake Chemical Corporation
Back to Top