GST Calculator India

The Goods and Services Tax (GST) is an indirect, multi-stage, destination-based consumption tax levied on the manufacture, sale, and consumption of goods and services throughout the Indian economic territory. Enacted under the Constitution (One Hundred and First Amendment) Act, GST unified dozens of legacy state and central levies—including Central Excise Duty, Service Tax, State VAT, Entry Tax, and Luxury Tax—into a unified digital compliance architecture.

Under India's dual GST framework, both the Union Government and State Governments concurrently levy tax on taxable supplies. For intra-state transactions (where the supplier and recipient reside in the same state or union territory), the tax is apportioned equally between Central GST (CGST) and State GST (SGST) or UTGST. For inter-state supplies (across state borders or involving import/export), an Integrated GST (IGST) is charged in full to the Central Government and subsequently routed to the consuming state.

Whether you are an MSME merchant issuing tax-compliant invoices, a freelance developer billing international clients, or a consumer checking retail pricing, precision in calculating forward GST (adding tax to a net price) versus reverse GST (extracting the tax component from an MRP or gross amount) is vital to ensure zero accounting discrepancies and avoid penalties during GSTR-1 and GSTR-3B filings.