GST Calculator

Add GST to a price or remove it from a GST-inclusive amount. See the CGST, SGST and IGST split at any rate.

The right rate depends on the HSN or SAC code

Your result

Amount before GST
–
Amount with GST
–
ItemAmount

This is an estimate for ordinary supplies. Cess, reverse charge, composition scheme and exemptions are not included. Always confirm the rate for your product or service against the HSN or SAC code before you invoice.

GST rates at a glance

RateTypically applies to
0.25%Rough diamonds and precious stones
3%Gold, silver and diamonds
5%Food and essential goods, and certain services
18%General goods and most services
28%Pan masala, tobacco and similar goods
40%Luxury and sin goods such as big motor vehicles and cold drinks, and certain services

These are the slabs from 22 September 2025. Before that date the common slabs were 5%, 12%, 18% and 28%, so choose the older rate for earlier invoices. Rates differ item by item, so check the HSN or SAC code.

How the calculation works

Adding GST

GST amount = price x rate / 100

Total = price + GST amount

Removing GST

Price before GST = total x 100 / (100 + rate)

GST amount = total minus price before GST

Within the same state, the GST is split equally between CGST and SGST. For sales to another state it is charged as IGST. Need help with registration or monthly returns?