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For the success of our clients, we connect 'Taxation, Technology', and Controls. We are recognized as a leading boutique for 'Taxation and SAP' by our clients, employees, and business partners. We develop and install turn-key SAP add-ons that enhance standard SAP to timely submit tax reporting, and that optimizes the SAP VAT determination logic.

Besides that, we offer bridging software and MacroExcel solutions for multinationals within Europe to submit tax reporting and prepare tax reporting with digital audit trails of any manual changes and VAT control functionality. That MacroExcel functionality - tested and operational at multinationals - is used for the design of our SAP add-ons to ensure these add-ons meet clients needs.

We partner up with our clients, so via outsourcing to us, clients realize that these tax obligations including maintenance are met moving forward. All our SAP add-on products follow the same method and footprint to establish a standardized approach.

Key Group and SAP

The Key Group (KG) is a tax consultancy firm specialized in SAP and Tax. The founder is a former EY Tax partner. KG operates from the Netherlands, and Slovakia. KG provides an end-to-end solution from development to implementation to maintenance support. 

KG is an official SAP partner and tax consultancy firm and SAP granted the namespace 'KGT'. 'KGT' stands for 'Key Group Tax'.

KG is an expert in building in SAP extra functionality that standard is not available. We enhance SAP via our SAP add-ons. SAP is aware of these weaknesses and granted access for additional functionality in user exists.

KG develops SAP add-ons for tax reporting and automated VAT determination for both incoming and outgoing invoice. Specific European governments in Europe have digitalized tax to perform efficient and effective tax audits. That means companies that run SAP have to be able to submit tax reporting almost real-time or on a periodical basis.

User and implementation documentation

At moment a SoW is signed the KG team will provide to client user and implementation documentation where users are explained step by step how to execute a certain action supported by screen shots.

When a new transport is provided, KG will explain the changes in an e-mail, but as well update documentation. Our documentation contains dates of review and additional sign off in case of any important changes.

The documentation is written in professional business English and signed off from a quality control perspective by both Tax as SAP technical experts.

Our R&D and test environment

The methods used implemented by European countries substantially differentiate, so every country rollout has to be developed from scratch, taking into consideration first the local tax requirements. Portugal, Poland, Lithuania, Hungary, Italy, Spain, and the UK have implemented these new tax reporting requirements.

R&D is done by tax experts with involvement of native speaking tax consultants to meet the local tax requirements. Our test environment in SAP contains sufficient data, and reflects transactions of a standard multinational.

Proper testing before roll out and the quality controls executed limits the number of transports needed to the solution operational. Tax SAP experts and ABAP developers working together satisfying your needs.

Mapping and configuration will be done by Tax SAP experts supported by developers.

From an R&D and Quality Control perspective we work together with Global VAT Compliance (GVC) and INSynQ.

Global VAT Compliance

Global VAT Compliance specializes in VAT/GTS services providing a streamlined solution to businesses all across the globe. Its specialists have extensive experience in all domestic and cross-border VAT and GST reporting services offering a unique and comprehensive approach to managing VAT compliance.

With its main office operating from the Netherlands and a back office in the Philippines, GVC employs more than 60 professionals with 15 different nationalities.


INSynQ is headquartered in Eindhoven, but operates also from Arnhem, Zoetermeer, Utrecht, and Den Bosch, The Netherlands. The 45 consultants have on average more than 15-years experience in SAP software. INSynQ has implemented about 100 End-to-End global SAP implementations; active in more than 50 countries. INSynQ and KG have developed KG SAP add-ons and SAP solutions for VAT automation.

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Key Group website

Written by Richard Cornelisse
 Richard LinkedIn

Richard advises multinational businesses in improving the efficiency and effectiveness of their Indirect Tax Function and Tax Control Framework.

He started his career as a manager at Arthur Andersen and then became a partner in EY where I led the indirect tax performance team for Netherlands and Belgium. Currently, he is a senior managing director of KEY Group.

Richard has over 20 years’ experience advising clients on international VAT issues. He is specialized in the tax aspects of financial transformations, shared service center migration, and post-merger integration work. Richard is also somewhat of a mentor, giving back to the profession. If you are interested in conversation and discussion, please feel free to contact him.