T The Final Project Report discusses the implementation of the reduction facility for Article 25 Income Tax at Large Taxpayers I Tax Office. The aim is to understand and comprehend the procedural of fulfilment requirement of reduction facility for Article 25 Income Tax, the reasons taxpayers apply for reduction of Article 25 Income Tax, and the relationship between reduction of Article 25 Income Tax and tax revenue collection and taxpayer compliance at the Large Taxpayers I Tax Office in 2023. The data collection methods used in preparing this final project report include literature review, observation, and interview methods. The research indicates that the process of reviewing requests for reduction of Article 25 Income Tax submitted by taxpayers is carried out by the account representative, and the final decision regarding approval/rejection of the application lies within the authority of the Head of the Large Taxpayers I Tax Office. The primary reason taxpayers apply for reduction of Article 25 Income Tax is due to a significant decrease in coal prices in 2023, thereby affecting the taxpayers\\\' business conditions. The research also shows that there is a relationship and impact of the reduction of Article 25 Income Tax on tax revenue, which is one of the factors contributing to the failure to achieve the target tax revenue for Article 25/29 at the Large Taxpayers I Tax Office in 2023. Furthermore, the reduction of Article 25 Income Tax also affects taxpayer compliance at Large Taxpayers I Tax Office during the year 2023.