GST Suvidha Provider

The GST System is being developed by Infosys, the GST Network (GSTN). 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 GSTN has further outsourced this to 28 other companies who are the GST Suvidha Providers (GSPs). SISL Infotech is one of the 28 GSPs.
The GSPs may or may not 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. All such applications are expected to be developed by third party service providers who have been given a generic name, Application Suvidha Provider or ASP.
These ASPs will be able to connect to the GST Server only through the GSPs via API calls A big chunk of taxpayers do not use automated systems for billing, accounting, inventory management, invoicing etc. We need innovative solutions for them which is easy to use and has lower cost overheads.

Roles and Responsibilities of GST Suvidha Provider :

  • GSP shall connect to GST system through MPLS API consumption to be measured at GSP and GST end to assess usage for billing purpose
  • All third party partners of GSP shall connect to and aggregate to GSP
  • Third Party partners of GSP or GSP’s applications (Portal, App, Accounting Application) shall not integrate with GST System directly
  • GSP could offer GSP Services (value added services) through additional APIs in form of additional enrichment features to end Taxpayers. (Refer Use Case 5)
  • GSP or their third party may bill the tax payers for the value added services.
  • GSP is responsible to inform end user, either itself or through its third party partners, about data privacy, encryption, authorization features provided by GSTN and its compliance to those features.
  • GSP will ensure security, privacy and integrity of data travelling from end user application to its system.
  • GSP or its Third Party can provide short as well long duration session to their customers (GST provides both facilities) based on user preference.

Following are the ASP Use Cases your Application Software could fall under:


  • GSP providing portal like GST with some innovative and different user interface.
  • GSP providing Mobile Apps having functionality similar to portal.


GSP providing Accounting software/ERP having complete accounting features as well functionalities to upload invoices and filing returns, matching of invoices and provide buyer options to view mismatched/matched/missing invoices in auto populated GSTR2 to upload only mismatched & missing invoices


GSP providing only access to APIs provided by GSTN.


GSP providing enriched API like Bulk uploading of invoices, conversion of invoice data formats (CSV to JSON, XML to JSON), latest HSN code tax rate , prepare GSTR1/GSTR2/GSTR3, validation of returns for latest tax rate and amount etc.