Free GST Calculator for India

To Add GST: GST Amount = Original Price × (GST Rate / 100). Total = Original Price + GST Amount.

Example: ₹10,000 + 18% GST = ₹10,000 × 1.18 = ₹11,800. GST = ₹1,800.

To Remove GST: Original Price = Total Price / (1 + GST Rate / 100).
Example: ₹11,800 inclusive of 18% GST = ₹11,800 / 1.18 = ₹10,000.

CGST (Central GST): Collected by the Central Government on intra-state sales.
SGST (State GST): Collected by the State Government on intra-state sales.
IGST (Integrated GST): Collected by the Central Government on inter-state sales.

For intra-state supplies, GST is split equally between CGST and SGST. For example, 18% GST = 9% CGST + 9% SGST. For inter-state supplies, the full 18% is IGST.

Formula: Base Amount = GST-Inclusive Price / (1 + GST Rate / 100)

Example: If the price is ₹1,180 (inclusive of 18% GST):
Base = ₹1,180 / 1.18 = ₹1,000
GST = ₹1,180 − ₹1,000 = ₹180

India has 4 main GST slabs: 0%, 5%, 12%, 18%, and 28%. Most services fall under 18%. Essential items like fresh food and milk are at 0%. Luxury and demerit goods attract 28% plus cess.

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