// Free Online Tool

GST Calculator

Add GST to a base price or remove GST from a final price. Supports all Indian GST slabs — 5%, 12%, 18%, and 28%. Instant calculation.

AMOUNT (₹) GST RATE (%) MODE

Your GST result will appear here.

// Overview

WHAT IS THE GST CALCULATOR?

The GST Calculator is an essential tool for anyone in India doing business, shopping, or managing accounts. GST (Goods and Services Tax) is India's unified indirect tax system introduced on July 1, 2017, replacing multiple taxes like VAT, service tax, and excise duty. It is levied at every stage of the supply chain.

GST in India has four main slabs: 5% (essential items like unbranded food products, mass transit), 12% (processed food, medicines, mobile phones), 18% (most services, electronics, restaurants), and 28% (luxury goods, automobiles, tobacco). There's also 0% for exempt goods like fresh vegetables and educational services.

Our calculator handles two modes: adding GST to a base price to get the invoice total, and removing GST from an MRP or final price to find the base price. Both operations are commonly needed by businesses, accountants, and consumers.

// Guide

HOW TO USE THIS TOOL

Enter the amount — either the base price (excluding GST) or the final price (including GST).
Select the GST rate — choose from 5%, 12%, 18%, 28%, or enter a custom rate.
Select the mode — "Add GST" if you have the base price, "Remove GST" if you have the final MRP/invoice price.
Click Calculate — see the breakdown of base price, GST amount, and total.

// Formula

THE FORMULA EXPLAINED

Adding GST: GST Amount = Base Price × (Rate/100) | Final Price = Base Price + GST Amount

Removing GST: Base Price = Final Price ÷ (1 + Rate/100) | GST Amount = Final Price – Base Price

// Benefits

KEY BENEFITS

Works for all GST slabs — 5%, 12%, 18%, 28%, and custom rates
Two modes — add or remove GST with one click
Shows full breakdown — base price, GST amount, and total
Useful for invoicing, shopping, and tax filing
Completely free, no signup

// Use Cases

WHO USES THIS TOOL?

Freelancers adding 18% GST to service invoices
Retailers calculating GST-inclusive prices for products
Consumers checking if a quoted price includes GST
CA students and accounting professionals doing GST exercises
E-commerce sellers calculating their GST liability

// Pro Tips

TIPS & BEST PRACTICES

CGST + SGST = IGST — for intra-state transactions, GST is split equally between CGST and SGST. For inter-state, it's IGST.
Input Tax Credit — businesses can claim GST paid on purchases against GST collected on sales.
Composition scheme businesses charge lower rates (1%, 2%, or 6%) — check your registration type.
Verify GST rates on the official GST portal (gst.gov.in) for any product before raising invoices.

// FAQ

FREQUENTLY ASKED QUESTIONS

What are the GST slabs in India?

India has four main GST slabs: 5% (essential goods), 12% (processed food, medicines), 18% (most services and electronics), and 28% (luxury goods, automobiles). There's also a 0% exempt category for basic food and educational services.

What is the GST on restaurants?

Restaurants not in hotels charge 5% GST (no input tax credit). Restaurants in hotels with room tariff above ₹7,500 charge 18% GST.

How is GST different from VAT?

GST replaced VAT and other indirect taxes on July 1, 2017. GST is a unified national tax, while VAT was a state-level tax with different rates in each state. GST is more transparent and eliminates the cascading tax effect.

What is the GST on software and IT services?

IT and software services attract 18% GST in India.

Is there GST on exported services?

No. Exports of goods and services are zero-rated under GST, meaning 0% GST is charged and exporters can claim refunds on input tax credits.

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