Use this to work out the tax components behind the value of goods you enter in Part A.

How this tool works

Choose whether GST is added to the amount or already included, pick the rate, and the tool splits it into the correct components.

Important
This calculator is for guidance only. The official portal performs the binding calculation when you generate a real bill.

Frequently asked questions

Intra vs inter-state tax?
Within a state: CGST + SGST (half each). Across states: a single IGST at the full rate.