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Goods and Services Tax (GST) in India: 2025 Complete Guide

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Illustration showing GST in India 2025 with India map silhouette, tax charts, bar graphs, rupee symbols, and growth arrows representing goods and services tax trends

Introduction

The Goods and Services Tax (GST) is India’s unified indirect tax, implemented nationwide on 1st July 2017. It replaced a complex mix of earlier state and central taxes—like VAT, excise duty, and service tax—with a comprehensive, destination-based system. Levied on the supply of goods and services, GST simplifies compliance, removes the cascading effect of taxes, and supports economic growth.

What is GST?

GST is a multi-stage, destination-based tax imposed at each value addition stage in a product or service supply chain. At every transaction, it’s charged only on the incremental value added, ensuring transparent pricing and enabling seamless input tax credit (ITC) for businesses.

Origins and Key Milestones

YearMilestone
2000Committee set up to draft GST law
2006Proposed launch by 2010
2017GST Act passed; GST rolled out nationwide on 1st July

Objectives of GST

  • Unified Indirect Tax System – Merges multiple central and state taxes under one structure.
  • Removes Cascading Effect – Input tax credit prevents double taxation.
  • Minimises Tax Evasion – Technology-driven filings, e-invoicing, and transparent tracking.
  • Wider Tax Base – Brings more businesses into the formal system.
  • Boosts Ease of Doing Business – Fully electronic registration, filing, and refunds.

How GST Works: Example

A biscuit manufacturer buys raw materials like flour and sugar, bakes biscuits, and sells them to a warehouse. The warehouse adds packing value and sells them to retailers, who finally sell to consumers. GST is levied at each stage only on the value added, with ITC available, reducing the final cost for the customer.

Infographic showing the multi-stage GST tax process in India, from manufacturer to warehouse, retailer, and consumer, highlighting value addition, GST applied at each stage, and input tax credit benefits

Comparison: Pre-GST vs GST

StageCost (₹)Tax RatePre-GST TaxGST (Paid by Stage)
Manufacturer1,00010%100100
After Warehousing1,30010%14030
After Retail Packing1,80010%20450
Total444180

Result: GST reduces the effective total tax burden.

GST Structure

  • CGST – Collected by the Centre for intra-state transactions.
  • SGST/UTGST – Collected by State/UT for intra-state transactions.
  • IGST – Collected by the Centre for inter-state transactions and imports.
Transaction TypeApplicable GSTRevenue Sharing
Within a StateCGST + SGSTCentre & State
Between States/ExportsIGSTCentre & destination State

GST Rates in 2025

SlabExamples
0%Milk, eggs, health services
5%Tea, edible oils, domestic LPG, life-saving drugs
12%Butter, processed food, computers
18%Hair oil, capital goods, soap, toothpaste
28%Luxury cars, ACs, cigarettes
Special0.25% (unworked precious stones), 3% (gold, jewellery)

GST Cess – Additional tax on certain luxury and sin goods.

Taxes Subsumed Under GST

Subsumed TaxesStill Outside GST
Central Excise DutyBasic Customs Duty
Service TaxTaxes on alcohol & tobacco
State VATStamp Duty, Electricity Duty
Central Sales TaxProperty Tax, Vehicle Tax

Key GST Features

  • E-Way Bills – Mandatory for transport beyond threshold distances.
  • E-Invoicing – Now required for B2B businesses above ₹5 crore turnover.
  • Input Tax Credit – Automated matching through supplier filings.
  • Online Returns & Refunds – Via the GST portal.
  • Centralised Compliance – Single portal for registration, payment, and filings.

Compliance Checklist for Businesses

  • Register for GST if above threshold turnover.
  • File GST returns on time (GSTR-1, GSTR-3B, etc.).
  • Issue GST-compliant invoices with HSN/SAC codes.
  • Keep digital records ready for audits.
  • Pay dues online within prescribed timelines.

FAQs

Who needs to register for GST?
Any business crossing turnover thresholds, e-commerce operators, inter-state suppliers, and certain specified categories.

How are GST rates decided?
The GST Council reviews rates periodically to ensure fairness and economic alignment.

What are the key benefits of GST?
It removes the cascading tax effect, reduces costs, creates a unified market, and streamlines compliance.


Conclusion

Since its launch, GST has transformed India’s indirect tax system. It’s made taxation more transparent, compliance more predictable, and business operations smoother.

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