Abstract:
Service quality is one of the critical success factors that influence the competitiveness of an
organization. Users of public service, unlike consumers in the private sector, usually have little
or no option to go elsewhere for services or to withdraw payment. Organizations that provide
public services therefore need to take additional steps to ensure that services are of a high
quality. The purpose of this paper was to investigate tax services quality and tax revenue
performance Oromia regional government Oromia tax revenue authority Jimma branch tax
revenue office. The sample size was 382 and the sampling technique used was convenient
sampling. Self-administered survey questionnaire based on the modified 20 items of the service
performance scale was used as instrument to collect primary data. The results of correlation
analysis showed that all the five service quality dimensions were significantly correlated with tax
revenue performance. The dimension that was highly correlated with tax revenue performance
was responsiveness and assurance respectively followed by empathy, reliability, and finally
tangibility was found to be the dimension that was least correlated with tax revenue
performance. Multiple regression analysis was also performed and from the results the 68% for
the model summary of the five service quality dimensions which indicated that service quality
dimensions on aggregate are capable of explaining the variance in tax revenue performance.
The ‘b’ coefficients for the all service quality dimensions were statistically significant. The
findings suggest that the Oromia regional government Oromia tax revenue authority Jimma
branch tax revenue office need to improve all the five dimensions of service quality. Finally,
concerned officials of the branch should assess service quality satisfaction continuously to keep
the services corresponded with customers’ point of view.