The GST System is being developed by Infosys, the Managed Service Provider (MSP). The work consists of development of GST Core System, provisioning of required IT infrastructure to host the GST System and running and operating the system for five years.
The proposed GST envisages all filings by taxpayers electronically. To achieve this, the taxpayer will need tools for uploading invoice information, matching of input tax credit (ITC) claims, creation of party-wise ledgers, uploading of returns, payment of taxes, signing of such document with digital signature etc.
The GST System will have a G2B portal for taxpayers to access the GST Systems, however, that would not be the only way for interacting with the GST system as the taxpayer via his choice of third party applications, which will provide all user interfaces and convenience via desktop, mobile, other interfaces, will be able to interact with the GST system. The third party applications will connect with GST system via secure GST system APIs. All such applications are expected to be developed by third party service providers who have been given a generic name, GST Suvidha Provider or GSP.
Taxpayers will interface with GST System via GST system portal or via GSP ecosystem provided by way of applications for activities such as Registration, Tax payments, Returns filing and other information exchange with GST core system. The GSPs will become the user agencies of the GST system APIs and build applications and web portals as alternate interface for the taxpayers.