# GST calculator

> Add GST to a price or take it out of a price that includes it, with the CGST and SGST (or IGST) split.

GST inclusive means the price already has the tax in it: the tax is the price times rate over (100 plus rate). Exclusive means the tax is added on top.

Within a state the tax is split equally into CGST and SGST; between states it is charged whole as IGST.

## Which GST rate applies to my product?

It depends on the HSN or SAC code. Look the code up with the HSN code finder, which shows the rate for most goods and services.

Developers: this page runs on GET /v1/calc/gst. Documentation: https://api.dharun.dev/docs/calculators.md