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Richard Cornelisse

Managing Director

KEY Group
Amsterdam, Netherlands

Corporation - Privately-Held

Professional Summary

Boutique firm: small, gifted and expert in a specialized area and independent.

Specialized in ‘Business Control’, ‘Information Technology’ and ‘Indirect Tax’. 

Richard Cornelisse is Director Strategy at Taxmarc™ and Managing Director of the KEY Group and worked previously as Ernst & Young Partner in the Tax Performance Advisory and Indirect Tax Practice and blogs on Tax Function Effectiveness and Tax Control Framework developments.

Learn More


  • English
  • Dutch

Industry Experience

    • Management Consulting Services
    • Management Consultancy



July 28

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KEY Group
Amsterdam, Netherlands
Managing Director
Corporation - Privately-Held
2012 - Present
Richard Cornelisse LL.M (1968) is Managing Director of the KEY Group.

Indirect Tax Performance projects:

*Statistical Sampling is the tax audit methodology of the Dutch Tax Authorities and it can be used by companies for proactive audit defense: pre-audit and detective control resulting in quantification of potential amount of exposures and/or savings.

*Data Analysis - An alternative for performing an efficient tax audit would be data analysis. Data-analysis options have increased and been refined rapidly over the past few years, allowing for large data volumes to be reviewed from indirect tax risks and cost reduction perspective in an effective and efficiently way.

*Audit Defense:- manage proactively relationship with tax authorities with aim to avoid future time consuming tax audits

*Business and Indirect Tax Processes and Controls: assessment, remediation and/or improvement

*Assessment, remediation and improvement of the VAT/GST functionality in IT systems (ERP/tax engine)

*Procedure manuals and user specific training

*Set up an Indirect Tax Strategic Plan for the short, mid and long term

*Knowhow of what is needed for succesfull indirect tax project: the necessary people skillset, time frame and key milestones, roles and responsibilities and pricing models of both tax software as tax content vendors. As business advisor provide support during Request for Proposal (including writing) or vendor selection.
Director Strategy
SAP Indirect Tax Solutions
2013 - Present

For virtually every company the efficiency of compliance with local VAT regulations depends entirely on the functionality of the underlying ERP system, such as SAP.

However, determining the VAT liability and reclaim in these systems is only partly automated. As a result, companies risk incorrect calculation of VAT, failure to comply with the local VAT obligations, or transactions that cannot be commercially executed.

In actual practice, these flaws are often patched up in order to keep the system running. taxmarc™ creates a bypass in SAP, thereby building on the standard functionality and infrastructure of SAP, but adding extra ‘brain capacity’.

By drawing upon 30 parameters instead of the 4-8 in standard SAP, taxmarc™ enables – without extra interface – a fully automated VAT determination of all (chain) transactions.

Moreover, taxmarc™ provides a Tax Control Framework, which ensures that transactions that do not comply with tax laws are automatically blocked.

Hereby taxmarc™ offers an effective tool that facilitates efficient deployment of employees and optimal risk management regarding indirect tax.
Ernst & Young
New York, New York, USA 10036
National Tax Partner Indirect Tax
2010 - 2011
Global Indirect Tax management - co leader of US VAT practice
Ernst & Young
Amsterdam, Netherlands 1083HK
National Tax Partner Indirect Tax
2002 - 2010
Global Indirect Tax Consultancy - In charge of Belgium/Netherlands Indirect Tax Performance Advisory Practice
Amsterdam, Netherlands
1998 - 2002
Senior Manager in charge of Indirect Tax Automation and function effectiveness


LLM, Tax law 1993
University of Leiden
Leiden, Zuid-Holland, Netherlands

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