How to use an India GST calculator
Add or remove GST at 5%, 12%, 18%, or 28% for quotes and invoices—understand inclusive vs exclusive amounts.
Inclusive vs exclusive GST
Exclusive means tax is added on top of the base. Inclusive means the amount already contains GST and you need to reverse-calculate the base and tax components. Pick the mode that matches your quote.
Common rates
India GST slabs commonly used in tools include 5%, 12%, 18%, and 28%. Confirm the rate that applies to your goods or services; this calculator does not replace professional tax advice.
Use the free calculator
Open the GST Calculator on Odin, enter the amount and rate, and review base, tax, and total for quick invoice estimates.