Isiolo county OSR performance has been a slight overall growth amidst declining collection in the past six years. In 2013-14 OSR collection was Kshs 125 million and it grew to kshs 134 million in 2014-15. In 2015-16 the collection declined to Kshs 110 million and to kshs 95 million in 2016-17. In 2017-18 the OSR collection begun to grow again, raising kshs 115 million and kshs 162 million in 2018-19. Isiolo county’s OSR performance has slightly improved in nominal terms over the past six years.
Although the growth is minimal, the OSR collection is more than half the estimated potential. In 2018-19 Isiolo county collected 66 per cent of its estimated revenue potential of kshs 245.5 million. OSR capacity to collect in Isiolo is minimal.