GST Calculator India - Free Online GST Calculator

Calculate GST amount, CGST, SGST and IGST instantly

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Common GST Rates Reference

Item / ServiceGST RateCategory
Bread, cereals0%Essentials
Milk, dairy products0%Essentials
Fruits, vegetables0%Essentials
Sugar, salt5%Essentials
Cooking oil5%Essentials
Tea, coffee5%Essentials
Medicines0% / 5%Healthcare
Restaurants (non-AC)5%Food
Restaurants (AC)5%Food
Clothing (value > Rs 1000)12%Apparel
Footwear (value > Rs 500)12%Apparel
Jewellery5%Luxury
Mobile phones18%Electronics
Laptops18%Electronics
Cosmetics18%Personal Care
Hotels (non-AC)12%Hospitality
Electricity5%Utilities
Cars28%Vehicles
Luxury goods28%Luxury
Tobacco28%Excise

Using the GST calculator for the first time

This GST calculator is made to help a first-time user understand Indian tax quickly. Enter the amount, choose whether you want to add GST or remove GST, and the GST calculator shows the total with CGST, SGST, or IGST as appropriate. The tool makes it easy to see how the final price changes when a tax rate is applied.

If you have never used a GST calculator before, this page guides you through every step without confusing forms. It is useful for invoices, estimates, or just checking how much tax will apply. The GST calculator is a fast and safe way to verify numbers without doing the math by hand.

You can rely on this GST calculator whenever you need accurate results for Indian GST. It keeps the experience simple so a first-time user can learn and use the calculator comfortably.

About this tool

A practical GST calculator for India that helps you add or remove GST from any amount. It includes intrastate and interstate modes, standard GST rates, and a simple reference table for common categories. GST (Goods and Services Tax) is India's unified taxation system that replaced multiple indirect taxes. Whether you are a freelancer generating invoices, a small business owner calculating prices, or an accountant managing tax compliance, calculating the correct GST amount is critical.

Our GST calculator handles both scenarios: adding GST to a base amount (finding final price) and removing GST from a total amount (finding pre-tax price). This is especially useful for invoice preparation and reverse calculations. The tool supports CGST + SGST (intrastate transactions) and IGST (interstate transactions).

You can quickly switch between common GST rates (5%, 12%, 18%, 28%) or enter a custom rate if needed. The calculator shows a detailed breakdown of the amount, GST, and total, making it easy to verify calculations before finalizing invoices or tax documents.

How to use this tool

1

Choose calculation mode

Select whether you want to add GST to a base amount or remove GST from a total. Choose CGST+SGST (intrastate) or IGST (interstate).

2

Enter amount and rate

Input the amount and select or enter the GST rate (5%, 12%, 18%, 28%, or custom). The calculator updates instantly.

3

Review the breakdown

Check the detailed breakdown showing base amount, GST components, and total. Verify this matches your invoicing needs.

Frequently Asked Questions

What is GST and who needs to register?

GST (Goods and Services Tax) is India's unified tax system. Registration is mandatory for most businesses with annual turnover above ₹40 lakhs (₹20 lakhs for some states). Our calculator is useful whether you are registered or calculating GST for educational purposes.

What's the difference between CGST, SGST, and IGST?

CGST (Central GST) and SGST (State GST) apply to intrastate transactions (within same state). IGST (Integrated GST) applies to interstate transactions. The total rate is the same (CGST + SGST = IGST), but the component matters for tax filing.

How do I calculate reverse GST (remove GST from total)?

Select the "Reverse Calculate" option, enter the total amount including GST, select the GST rate, and the calculator automatically shows the base amount and GST component. This is useful for invoice verification.

What are the standard GST rates in India?

The main GST rates are 5%, 12%, 18%, and 28%. Essential items are often at 5%, most goods/services at 18%, and luxury items at 28%. Some items are GST-exempt. Our tool includes a reference table for common categories.

Is this calculator accurate for compliance?

This calculator is a useful tool for quick calculations, but for tax compliance and invoicing, always refer to official GST rates and consult a tax professional. Laws and rates can change, so verify current rates on the GST portal.

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