“As a multinational group, we need fast, accurate answers for complex cross-border scenarios, which include routine intercompany payments as well as major restructuring projects. COMTAX consistently delivers reliable tax calculations and the flexibility to model structures that don’t fit standard templates. The system allows us to tailor calculations to our specific facts rather than forcing us back into spreadsheets. No other tool does that for us.”

Head of International Tax, Multinational Enterprise

“COMTAX software has become an indispensable tool in our tax department. Information and tax possibilities or restrictions, which deliver valuable details for the further tax and operational structuring of projects and tasks, are quickly and reliably displayed. A solid overview of important basic tax data completes the goal of providing structured basic information on general tax conditions in the individual countries and states. The monthly newsletter and updates guarantee a high level of currency. Additionally, support based on trust and partnership is provided by the small, but excellent COMTAX support team. In short: I can only recommend COMTAX."

Director of Tax Affairs, Carl Zeiss AG

“When moving from research to billable client work, accuracy and modelling depth matter far more than interface polish. COMTAX stands out for its dependable tax rates, strong calculation engine, and ability to model complex cross-border structures quickly and defensibly. The flexibility of the platform lets us personalise scenarios and go beyond standard cases without sacrificing accuracy. Compared side by side with other tools, COMTAX delivers the substance international tax advisers actually rely on at a more practical cost.”

Partner, Global Tax Advisory