Advanced Tax Automation




Advanced Tax Automation, Inc. brings over 15 years of ONESOURCE experience to your project. We are your experts for SAP, Oracle, NetSuite, or Microsoft tax integrations having managed and built them all for Thomson Reuters. As ONESOURCE Certified Professionals we can assist you with all aspects of the ONESOURCE Suite of products. We have setup and configured Determination, Reporting, Certificate Manager, Data File Integrator, and all of the Integrations in the Thomson Reuters Cloud as well as on-premise. We bring a clear vision to your project, being a partner in working with your internal and other third party teams, and outperforming your expectations. Click on below image to learn more about our services.

Client Process Circle


Advanced Tax Automation – Tax Integration and Configuration

Do you have a new project in the planning phase? Are you stuck on a mind boggling issue with your tax implementation? Do you have a custom transaction system that needs to be connected to ONESOURCE?  We have the expertise, experience, and knowledge to help you!



I have worked closely with Stefan for 10+ years, first at Sabrix and then at Thomson Reuters. His standards, whether ethical, technical, quality, customer satisfaction, or in any number of other fields are always uncompromisingly high. He sets a high bar for excellence in general, which I have taken inspiration from many times. I wish Stefan all the best in his new endeavors, I am certain he will successful, and I hope we cross paths soon in the tax automation space – there is still a lot yet to be accomplished!

Head of Professional Services at Thomson Reuters

I have had the pleasure of working with Stefan for more than a decade, first at Sabrix and then at Thomson Reuters. Stefan was an invaluable resource to myself and my sales team in all things Indirect Tax, where his product contributions and his direct engagement in strategic sales opportunities were instrumental to our success. As the brains behind our overall ERP integration strategy and more specifically the groundbreaking Global Next SAP integration, I wholeheartedly endorse Stefan as a leading expert in the Indirect Tax automation market.

Area Sales Manager, ONESOURCE Indirect Tax and Property Tax at Thomson Reuters