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GST Calculator India

Calculate GST for all slabs — add or remove tax instantly with CGST & SGST breakdown.

Custom:

GST Breakdown

5% GST

Original Amount

₹ 0.00

GST Amount

₹ 0.00

Total (with GST)

₹ 0.00

Tax Components

CGST (50%)

₹ 0.00

SGST (50%)

₹ 0.00

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About This Tool

GST Calculator

Calculate GST amounts for any rate (5%, 12%, 18%, 28%) and get a full breakdown of CGST, SGST, and IGST — for India.

Why Use This Tool?

  • Calculate the exact GST payable on any product or service
  • Find the GST-exclusive price from a GST-inclusive amount (reverse calculation)
  • Get CGST and SGST split for intra-state transactions
  • Used by business owners, accountants, and freelancers daily
  • Prepare accurate invoices and quotations with correct tax amounts

Overview

Goods and Services Tax (GST) is the unified indirect tax system that replaced multiple earlier taxes in India. Introduced in July 2017, GST is applied to the supply of goods and services across the country at rates of 0%, 5%, 12%, 18%, and 28%, depending on the category of goods or services. For every business transaction in India, understanding the correct GST amount is critical — whether you are invoicing a client, setting a product price, or filing your GST returns. Our GST Calculator makes this effortless. Enter the base amount and select the applicable GST rate to instantly see the GST amount, the gross total including GST, and a complete breakdown of CGST (Central GST) and SGST (State GST) for intra-state transactions, or IGST (Integrated GST) for inter-state transactions. The reverse GST calculator lets you extract the base price from a GST-inclusive amount. This is one of the most used tools by Indian business owners, accountants, freelancers, and e-commerce sellers every single day.

How to Use

  • 1

    Enter the Amount

    Type the base price or invoice amount in the input field (without GST for Add GST mode, or inclusive of GST for Remove GST mode).

  • 2

    Select the GST Rate

    Choose the applicable GST slab: 5%, 12%, 18%, or 28%. Use Custom for any other rate.

  • 3

    Choose Calculation Mode

    Toggle between "Add GST (Exclusive)" to find gross price, or "Remove GST (Inclusive)" to extract base price from a GST-inclusive amount.

  • 4

    Read the Breakdown

    See the original amount, GST amount, CGST + SGST breakdown, and final total clearly displayed.

  • 5

    Copy Values

    Click the copy icon next to any value to copy it for use in your invoice or accounting system.

Frequently Asked Questions

CGST (Central GST) goes to the Central Government and SGST (State GST) goes to the State Government — both at half the total GST rate for intra-state sales. IGST (Integrated GST) applies to inter-state sales and goes to the Centre.
The GST Council publishes HSN code-based rate schedules. Common rates: 5% on essentials, 12% on processed foods, 18% on most services and electronics, 28% on luxury goods and cars.
Reverse GST finds the pre-GST base price from a GST-inclusive total. Formula: Base Price = GST-inclusive price ÷ (1 + GST rate/100).
Services provided by consultants, freelancers, and professionals generally attract 18% GST. Register for GST if your annual revenue exceeds ₹20 lakhs (₹10 lakhs for special category states).
This tool only calculates GST amounts. Use our GST Invoice Generator tool to create a complete, printable GST-compliant invoice.