A Advertising tax is one of the sources of local own-source revenue (pad) that plays an important role in supporting the financing of government administration and regional development. however, the continued presence of unlicensed advertising activities in bekasi city has resulted in suboptimal advertising tax administration, potentially causing leakage of regional revenue. the problems addressed in this research are whether the administration of advertising tax by the regional revenue agency can increase the local own-source revenue of bekasi city during the 2022–2024 period, as well as the obstacles encountered and their solutions.this research aims to analyze the administration of advertising tax in increasing the local own-source revenue of bekasi city. to achieve this objective, the research employs a descriptive normative legal research method using secondary data supported by primary data obtained through an interview with the head of the regional revenue agency of bekasi city. the data were analyzed qualitatively using a deductive method.the results of the research indicate that advertising tax administration is carried out through data collection, tax assessment, collection, supervision, and the utilization of digital systems, and contributes to the increase in local own-source revenue of bekasi city during the 2022–2024 period. the obstacles encountered include the continued existence of unlicensed advertisements, discrepancies between administrative data and actual conditions in the field, limited supervision, and the extensive area requiring monitoring. therefore, advertising tax administration plays a role in increasing the local own-source revenue of bekasi city, as reflected in an increase of idr 80 trillion. nevertheless, stronger inter-agency coordination and optimization of digital systems are still required to improve the effectiveness of advertising tax administration.