Purpose: The purpose of the study was to assess the theoretical model, representing original approach of bonus system created by the author, after several years of its functioning in the real environment. The model aims at supporting identification of salaries levels of sellers employed in a marketing company. Design/methodology/approach: In 2015, a proprietary modification of the new bonus system in a small company was developed, which was aimed at directing the efforts of sellers at building added value in the company. The developed modification was implemented as a practical solution. This study is an attempt to confront the adopted theoretical assumptions presented in the article "Modernisation of the bonus system in a small company," w...