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Free Tools GST Calculator
Free GST Calculator India

GST Calculator — India 2024-25

Calculate GST on any amount. Get CGST, SGST, and IGST breakdown instantly. Supports all GST rates — 5%, 12%, 18%, 28%.

Enter Amount & GST Rate

GST Type

GST will be added on top of the amount you enter.

₹
Transaction Type

GST Breakdown

Original Amount ₹0.00
CGST (50%) ₹0.00
SGST (50%) ₹0.00
Total GST ₹0.00
Grand Total ₹0.00

GST Rate Quick Reference

5% Food, Medicine, Transport services
12% Mobile phones, Business class travel
18% Software, Most services, Chemicals
28% Luxury goods, Cars, Tobacco

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How to Calculate GST in India

01

Enter the amount

Enter the base amount (exclusive) or the total amount including GST (inclusive). Toggle the GST type above the amount field.

02

Select the GST rate

Choose from 0%, 5%, 12%, 18%, or 28% — or enter a custom rate. Most services in India attract 18% GST.

03

Choose transaction type

Intra-state transactions split GST equally into CGST and SGST. Inter-state transactions use IGST (full GST amount).

04

Get the breakdown

The calculator instantly shows CGST, SGST (or IGST), total GST, and grand total — ready to use in your invoice.

GST Calculator FAQ

What is GST in India?

GST (Goods and Services Tax) is a unified indirect tax that replaced multiple central and state taxes in India from July 1, 2017. It applies to the supply of goods and services across India.

What is the difference between CGST, SGST, and IGST?

For intra-state transactions (buyer and seller in the same state), GST is split into CGST (Central GST) and SGST (State GST), each at 50% of the applicable GST rate. For inter-state transactions, the entire GST is collected as IGST (Integrated GST).

What does inclusive vs exclusive GST mean?

Exclusive GST means the amount you enter does NOT include tax — GST is added on top. Inclusive GST means the amount already includes GST — our calculator extracts the tax component from it.

Which GST rate applies to professional services?

Most professional services — CA services, legal services, IT services, consulting — attract 18% GST. Some services like healthcare and education are exempt (0%).

Can I use this calculator for GST invoice preparation?

Yes, this calculator gives you the exact CGST, SGST, IGST, and total GST values needed for a GST invoice. For creating and printing a complete invoice, try our free GST Invoice Generator.

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