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Instant GST
Calculator

Calculate GST in seconds — inclusive & exclusive.

Accurate GST calculations for invoices, pricing decisions, and tax estimation. Supports all four GST slabs — 5%, 12%, 18%, and 28%.

How GST is calculated

GST can be calculated either on a base amount (exclusive) or extracted from a GST-inclusive price. The calculator instantly shows the base value, GST amount, and total invoice value.

When should you use this?

This GST calculator helps businesses quickly determine tax on invoices, product pricing, and billing. It supports all GST slabs — 5%, 12%, 18%, and 28%.

5% GST Slab 12% GST Slab 18% GST Slab 28% GST Slab

Disclaimer: This calculator is for informational purposes only and provides approximate GST values. It does not constitute legal or tax advice. Actual GST liability may vary based on classification, applicable laws, and regulatory changes. Please consult a qualified professional before making decisions.

Targo Tool

GST Calculator

Result Summary

Base Amount
GST Amount
Total Amount

Results update automatically as you type

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GST Insights & Guides

📋

What is GST?

GST is a comprehensive tax levied on the supply of goods and services across India. Understand the concept, components, and applicability for your business.

Read more →
📊

GST Rates Explained

GST is charged at 5%, 12%, 18%, and 28% depending on the category of goods and services. Learn how to identify the correct slab for your business.

Read more →
💰

Input Tax Credit (ITC)

Eligible taxpayers can reduce their GST liability by claiming input tax credit on purchases. Here's how ITC works and the conditions for claiming it.

Learn more →
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