GST calculator
Add GST to a price, or take it out of one that already includes it.
Price with GST
₹11,800
- GST
- ₹1,800
- CGST at 9.0%
- ₹900
- SGST at 9.0%
- ₹900
- Price before GST₹10,00085%
- GST₹1,80015%
How it's worked out
A sale within a state splits GST equally into CGST and SGST. A sale to another state carries IGST at the full rate.
To take GST out of an inclusive price, divide by (1 + rate). A common slip is to subtract 18% of the final price, which takes out too much.
The formulaAdding: GST = price × rate. Taking out: price before GST = amount ÷ (1 + rate), and GST = amount − that price.
Common questions
What are the current GST rates?
Since 22 September 2025, the main slabs are 5% and 18%, with 40% on luxury and sin goods. Gold and silver carry 3%, and some goods have special rates or none at all.
Which rate applies to my product?
It depends on its HSN or SAC code. The official GST rate finder on the government's GST portal lists them.
More tax & salary calculators
All calculatorsIllustrative figures only, from the numbers you enter and the assumptions stated above. Rates and rules change, so check them with the provider or a qualified adviser before acting. Arthscan is not a SEBI-registered research analyst or investment adviser, and nothing here is investment advice.