Economy

Goods and Services Tax

Also: GST, goods and services tax

Definition
A comprehensive, destination-based indirect tax on the supply of goods and services, introduced in India on 1 July 2017, that replaced most central and state levies with a single system in which tax paid on inputs is credited against tax on outputs.
Deep-dive lesson: Taxation in India: Direct Taxes, GST and Tax Reforms. This page is a quick reference that connects the term across subjects; read the lesson for the full treatment.
Summary card: Goods and Services Tax. Launched 1 July 2017 via the 101st Constitutional Amendment. Dual structure: CGST and SGST, plus IGST on inter-state supply. Rates simplified in 2025 to mainly 5% and 18%. Petroleum and alcohol for drinking kept outside. GSTN runs the IT backbone
Summary card © UPSCPrep.in

Background and evolution

Before GST, India had a patchwork of indirect taxes. The Centre levied excise duty on manufacturing and service tax on services; states levied value added tax on sales, entry tax, octroi, luxury tax and more. Goods moving between states paid central sales tax, which could not be credited. Taxes were levied on taxes, which raised prices in hidden ways, and lorries queued for hours at state border checkposts. Economists called this "cascading" and a fragmented internal market.

The idea of a nationwide value added tax was discussed for years, from the Kelkar task force in 2004 to a 2006 budget announcement. Agreement between the Centre and states took more than a decade because states feared losing revenue and fiscal autonomy. The 101st Amendment in 2016 created the legal basis, and GST took effect at midnight on 1 July 2017. The institutional design and the Council are covered in the main lesson and the GST Council page; this page explains how the tax works and its economic effects.

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Last reviewed: 23 October 2026 · Original UPSCPrep.in content.