GST = taxable value × rate / 100. Total = base + GST.

Default buttons are 0, 0.25, 3, 5, 18, 40. Type 12 or 28 only for old invoices.

Use reverse / remove GST on the inclusive amount.

We show paise. Invoice rules still want nearest rupee in some returns.

Runs in your browser · Last updated 4 September 2026

Free Add GST Calculator (India GST 2.0)

Free add GST calculator. Add GST 2.0 to a taxable value — intra-state CGST/SGST or inter-state IGST. Browser tool — nothing is uploaded.

Taxable value (₹)Rate %Supply

Base

₹10,000.00

GST

₹1,800.00

CGST

₹900.00

SGST

₹900.00

IGST

₹0.00

Total

₹11,800.00

How to use this tool

Generic “GST calculator” is owned by big brands. Add / remove / reverse are the weak SERPs.

Formula?: GST = taxable value × rate / 100. Total = base + GST.
GST 2.0?: Default buttons are 0, 0.25, 3, 5, 18, 40. Type 12 or 28 only for old invoices.
Remove GST?: Use reverse / remove GST on the inclusive amount.
Uploaded?: No.
Rounding?: We show paise. Invoice rules still want nearest rupee in some returns.