GST Calculator

Add or Remove GST instantly. (India Tax Slabs)

Base Price (Before Tax)Rs. 1,00,000
GST Rate Bracket
Base Amount (Net Price)Rs. 1,00,000
Total GST (18%)Rs. 18,000
↳ CGST (9%)Rs. 9,000
↳ SGST (9%)Rs. 9,000
Final Bill PriceRs. 1,18,000

Bill Breakdown

Base Price
CGST
SGST

What is GST?

Goods and Services Tax (GST) is an indirect tax used in India on the supply of goods and services. It is a comprehensive, multistage, destination-based tax levied on every value addition.

The GST Calculation Formula

Adding GST: GST Amount = (Original Cost × GST %) / 100. Net Price = Original Cost + GST Amount.
Removing GST: GST Amount = Original Cost - [Original Cost × {100 / (100 + GST %)}]. Net Price = Original Cost - GST Amount.

Disclaimer:This calculator uses standard Indian GST percentage brackets and splits 50/50 for CGST and SGST assuming intra-state transactions.

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Frequently Asked Questions — GST Calculator

What are the GST tax slabs in India?

India currently has four main GST rate slabs: 5%, 12%, 18%, and 28%. Additionally, there are special rates of 0.25% for rough diamonds and 3% for gold and silver. Essential items like food grains are exempt from GST (0%).

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

CGST (Central GST) and SGST (State GST) are charged equally on intra-state transactions (within the same state). IGST (Integrated GST) is charged on inter-state transactions (between different states) and is equal to CGST + SGST.

How do I calculate GST from the total price?

To find the GST amount from a GST-inclusive price, use: GST Amount = Total Price - [Total Price × 100 / (100 + GST Rate)]. For example, if a product costs Rs. 1,180 including 18% GST, the GST amount is Rs. 180.

Who needs to register for GST?

Businesses with an annual turnover exceeding Rs. 40 lakhs (Rs. 20 lakhs for special category states) must register for GST. E-commerce operators and interstate suppliers must register regardless of turnover.