The Goods and Services Tax (GST) is one of the most significant tax reforms introduced in India to simplify the indirect taxation system. It was implemented on 1 July 2017 with the objective of replacing multiple indirect taxes such as Value Added Tax (VAT), Service Tax, Excise Duty, and others into a single unified tax structure. The main purpose of GST is to create a common national market, reduce tax cascading, and improve transparency in the taxation system. This study focuses on the implementation of GST and its impact on businesses, consumers, and the overall economy. The research examines the advantages, challenges, and effectiveness of GST after its implementation. It also analyzes how GST has simplified tax compliance, improved tax collection, and influenced the pricing of goods and services.The study is based on secondary data collected from journals, government reports, articles, and online sources. The findings indicate that GST has brought significant changes to the Indian tax structure by promoting transparency and reducing tax complexities, although certain challenges such as compliance issues and technical difficulties were faced during the initial stages of implementation. Overall, the implementation of GST has contributed to strengthening India\'s taxation framework and supporting economic growth by creating a more efficient and unified tax system.