This paper investigates National Statistical Institutes’ (NSIs) practices concerning response burden in their business surveys based on a survey of 41 NSIs from 39 (mostly European) countries. The results show that 1) most NSIs monitor some aspects of the response burden in their business surveys; 2) the methods used for this vary largely, both between and within NSIs; 3) many NSIs have implemented actions to reduce response burden but 4) there is hardly any research on the costs and effects of burden reduction actions. To get more insights in effectiveness and efficiency of response burden management practices, more research is needed into effects of burden reduction actions as well as a standard methodology for measuring response burden.