Abstract: The economic significance of infectious bursal disease is well known to worldwide poultry farmers. Reported cases of concern in chickens by researchers have primarily been targeted at direct mortality, secondary bacterial infections, immuno-suppression with major impacts on production efficiency and decrease responses to vaccination. This study evaluates economic losses of 3 successive recurrent outbreaks of IBD in a commercial poultry farm in Kano, Nigeria and also projected 3 year (2009-2011) economic losses. Contrary to many research findings, increased age dependence and high mortality rates were observed during the study. Spreadsheet method of disease analysis (2003) was used to project economic loss of over three billion naira during these years under study. Due to high prevalence of IBD in Nigeria, it has become necessary to attempt to quantify the economic impact of IBD so that its economic losses could be appreciated, quick decisions are made on how best to prevent, control and design research priorities. The negative impacts of IBDV can be strategically minimised by good planning, effective vaccination and sound biosecurity principles.