e-Invoicing is new to Indian Tax Payers, but it is implemented in 100+ countries acrossthe globe and has still not matured. e-Invoicing is implemented in all the countries in a phased manner, and India is also following the same. In India, e-Invoicing will be rolled out from 1st Oct 2020, as one of the anti-tax evasion measures for taxpayers who are having a turnover above Rs 500 crores in a financial year. Similar to the rollout of GST, where the taxpayers have to change the business process for effective implementation, the rollout of e-Invoice also involves changes in the business process, and the book covers the same. It also talks about the implementation in some of the countries, along with the benefits of e-Invoice to the taxpayers and the nation as a whole. The book provides a unique combination, as it talks about the provisions of the e-Invoice and the impact on the business and interpretation of provisions related to the same and also the API architecture and schema of Invoice Reference Number. The books also explains the reader on what is an e-Invoice? What is IRN? How it is generated? What is QR code in e-Invoicing etc., The book also discusses the implementation process the corporates have to adopt for the rollout and also various methods of implementing the e-Invoice in organizations. It also talks about the best methods of implementing the same, along with validations to be incorporated in the system. e-Invoice the Encyclopedia for Indian GST covers all the aspects of the e-Invoicing from the functional, technical and legal aspects.