Goods and Services Tax (GST)

Goods and Services Tax (GST) is a comprehensive, multi‑stage, destination‑based tax levied on the consumption of goods and services. It replaces a mosaic of central excise, service tax, and state VAT, creating a single market by taxing only the value added at each point in the supply chain. The reform is unique for its constitutional anchoring, nationwide applicability, and the simultaneous imposition of central and state components on every transaction. ## Historical Background The legal foundation for GST was laid by the 101st Constitutional Amendment Act of 2016, which inserted Article 246A to grant both the Union and the states concurrent power to tax goods and services. The amendment was enacted on 20 September 2016 after a two‑year deliberation by the Empowered Committee of State Finance Ministers chaired by the Union Finance Minister. Prior to the amendment, the 2000‑2005 “Value‑Added Tax” proposals and the 2014‑15 draft GST Bill had failed to secure the required two‑thirds majority in the Rajya Sabha, prompting the constitutional route. The GST Council, constituted under Section 2(1) of the Central Goods and Services Tax (CGST) Act, first met on 3 December 2016, bringing together the Union Finance Minister and the finance ministers of all 28 states and 8 union territories. The Council’s mandate—to recommend tax rates, thresholds, and exemptions—was codified in the GST (Council) Rules 2020, which require a three‑fourths majority for decisions affecting the tax structure. This institutional design was intended to balance fiscal autonomy with national uniformity. ## Mechanism and Structure GST operates on a credit‑invoicing system: a seller charges tax on the invoice value, remits the net amount after deducting input tax credit (ITC) on purchases, and the buyer claims the same credit on subsequent sales. The tax is levied at each stage of production, but the final consumer bears the cumulative burden, reflecting the destination principle that taxes goods where they are consumed rather than where they are produced. The mechanism is enforced through a unified return filing portal (GSTN) that processes over 1.5 billion invoices annually as of FY 2023‑24. The regime comprises three components: Central GST (CGST) collected by the Union, State GST (SGST) or Union Territory GST (UTGST) collected by the respective state or UT, and Integrated GST (IGST) collected by the Union on inter‑state supplies. The tax slab structure includes rates of 0 %, 5 %, 12 %, 18 %, and 28 % applied uniformly across the country, with a compensation cess of 1 % to 22 % on luxury items such as tobacco and aerated drinks. Registration becomes mandatory when annual turnover exceeds ₹40 lakh for most taxpayers and ₹20 lakh for businesses in the North‑Eastern states, as stipulated in Section 25 of the CGST Act. ## Key Provisions of the GST Acts The Central Goods and Services Tax Act 2017 (Act No. 12 of 2017) defines the liability of the supplier in Section 7, stating that tax is payable at the time of removal of goods or provision of services. Section 16 codifies the conditions for claiming ITC, requiring possession of a tax invoice, receipt of goods, and filing of returns. Penalties for delayed filing are detailed in Sections 73 and 74, which impose interest at the rate of 18 % per annum on the unpaid tax amount. The Integrated GST Act 2017 (Act No. 13 of 2017) governs inter‑state transactions, with Section 9 prescribing IGST liability on the value of supply plus any applicable cess. The Compensation Cess, introduced by Section 50 of the CGST Act, earmarks revenue for states to offset the loss of sales tax, and its rates are periodically revised by the GST Council. Anti‑profiteering provisions under Section 171 empower the National Anti‑Profiteering Authority to ensure that benefits of tax rate reductions are passed on to consumers within 90 days. ## India’s GST Journey Since 2017 GST was launched on 1 July 2017, synchronising the commencement of CGST, SGST, and IGST across all jurisdictions. At the end of the first quarter, 12.2 million taxpayers had registered, representing a 35 % increase over the pre‑GST registration base. Initial compliance challenges included the rollout of the Goods and Services Tax Network (GSTN) and the need for businesses to upgrade accounting software to handle the