This study aims to examine the contribution of water tax revenue to local revenue. The population used in this study is the result of realization of city air tax revenue and local income of Depok City in 2014-2015. This research uses data obtained from the Dept. of Financial and Asset Management (DPPKA) of Depok City which has been determined for the benefit of the community . The analysis shows that air has a very small value to the original revenue of the region, which is 0.29% in 2014, 0.66% in 2015, and 0.57% in 2016 or an average of only 0, 51% of total Pendapatan Asli Daerah (PAD) Depok City.
Keywords: Ground Water Tax, Local Revenue, Depok City