GST Calculator
Add GST to a price or work backwards from a GST-inclusive amount. Pick a rate and see the split instantly, free, no sign-up.
- Base amount
- ₹1,000
- GST (18%)
- ₹180
- Total
- ₹1,180
How GST is calculated
To add GST, multiply the base amount by the rate and add it back: a ₹1,000 item at 18% GST carries ₹180 of tax, for a total of ₹1,180. To remove GST from an inclusive price, divide by one plus the rate, ₹1,180 at 18% works back to a ₹1,000 base and ₹180 of tax.
Common GST rates in India
Most goods and services fall into 5%, 12%, 18% or 28% slabs. Restaurants commonly bill at 5% GST (without input tax credit) under current rules, though your applicable rate depends on your registration and category, check with your accountant.
Piatto Pro applies the right GST to every invoice automatically, with HSN codes and the splits your return expects. See tax compliance →