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Hidden factory or hidden operation: the rework and cover ups, the hours and days of wasted time in a company of people who constantly correct mistakes . The objective is to make the hidden factory visible (measure/calculate ROI) and as result returns precious time and money to the business. It is about extra man-hours, additional costs due to rework (credit/debit notes) and retrospective corrections and/or disclosures. Example: how much rework is required before numbers received from finance systems can be used? 

  • Does the process of preparing and compiling the client’s VAT return take more than 5 man days? (starting from the moment of VAT-data collection until the VAT return is approved and filed).
  • Are manual adjustments made to ERP figures before inclusion in VAT Returns?

Reduced the man hours spent on gathering data


During assessment of any solution determine the amount of increase of workforce efficiency, how much rework is avoided, risk exposures are decreased but as well how visibility and awareness are improved by which the tax function is able to set better priorities.

The objective is to make the hidden factory visible (measure/calculate ROI) and as a result, return precious time and money to the business.


See chapters: Spreadsheets and VAT Compliance and ERP systems and tax engines


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 centre 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.