FREE GST TOOL
GST Calculator India
Calculate GST instantly. Choose whether to add GST on base amount or remove GST from an inclusive amount.
Calculate GST instantly. Choose whether to add GST on base amount or remove GST from an inclusive amount.
Pick an amount, choose slab, and switch between Add/Remove modes instantly.
Use Add mode when you have pre-tax amount. Use Remove mode when amount already includes GST.
This calculator supports common GST slabs used in India: 5%, 12%, 18%, and 28%. For most service-related scenarios, 18% is frequently used, so the default is set to 18% for faster calculations.
For invoice planning, add GST to get final payable value. For reconciliation of received amount, remove GST to derive taxable value and tax component. CGST and SGST are shown as half-halves for intra-state billing reference.