GST Calculator
The GST Calculator adds or removes Goods and Services Tax at any slab - 5%, 12%, 18%, or 28% - so businesses and shoppers can see the tax amount and the net or gross price instantly.
Adding vs removing GST
To add GST, the tax is a simple percentage of the base price: ₹1,000 at 18% adds ₹180, for a total of ₹1,180. To remove GST from a tax-inclusive price, you divide rather than multiply: base = gross ÷ (1 + rate). So ₹1,180 inclusive of 18% GST has a base price of ₹1,000. The calculator does both directions.
CGST and SGST
For sales within a state, the total GST is split equally into CGST (central) and SGST (state) - 18% becomes 9% + 9%. For inter-state sales it is charged as a single IGST. The tool shows the split so you can fill invoices correctly.
Frequently Asked Questions
How do I remove GST from an inclusive price?
Divide the gross price by (1 + GST rate). For 18% GST, divide by 1.18 to get the base price, and the difference is the tax.
What are the standard GST slabs in India?
The common rates are 5%, 12%, 18%, and 28%, applied depending on the category of goods or services.
What is the difference between CGST, SGST, and IGST?
Intra-state sales split GST into equal CGST and SGST portions; inter-state sales use a single combined IGST at the same total rate.
Can businesses and consumers both use it?
Yes. Businesses use it to price and invoice correctly, while consumers use it to check the tax component of a bill.
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