Add GST to a price or remove GST from a total, at any rate.
Calculate GST (Goods and Services Tax) in seconds. Choose Add GST to add tax to a base price, or Remove GST to find the base price from a GST-inclusive total. Supports all Indian GST slabs — 5%, 12%, 18% and 28%.
India's Goods and Services Tax (GST) is a single indirect tax on the supply of goods and services. To add GST, multiply the base amount by (1 + rate). To remove GST from an inclusive price, divide by (1 + rate).
GST amount = Base × rate% | Base = Inclusive ÷ (1 + rate%)
On a ₹1,000 item at 18% GST, the tax is ₹180 and the final price is ₹1,180. Working backwards from ₹1,180: ₹1,180 ÷ 1.18 = ₹1,000 base. For intra-state sales this 18% is split as 9% CGST + 9% SGST; for inter-state sales it's charged as 18% IGST.
| Rate | Typical goods & services |
|---|---|
| 0% | Fresh produce, milk, essential items |
| 5% | Household necessities, transport, small restaurants |
| 12% | Processed food, business-class travel |
| 18% | Most goods and services, electronics |
| 28% | Luxury and "sin" goods, premium cars |
Select 'Add GST', enter the base amount and rate — the tool shows the GST and the total including GST.
Select 'Remove GST' and enter the GST-inclusive amount to get the original base price and the GST portion.