You have an inclusive price. Base = inclusive ÷ (1 + rate/100). GST is the difference.

GST 2.0 (from 22 Sep 2025): 0, 5, 18, 40, plus 3% jewellery and 0.25% rough stones. 12% and 28% are gone for most goods.

Intra-state splits GST in half. Inter-state is all IGST.

No. Reverse charge is a different legal concept. This is just inclusive-to-exclusive math.

Runs in your browser · Last updated 4 September 2026

Free Reverse GST Calculator (India GST 2.0)

Free reverse GST calculator. Back out base price and GST 2.0 (5%, 18%, 40%, 3% gold) from an inclusive amount. Browser tool — nothing is uploaded.

GST-inclusive amount (₹)Rate %Supply

Base

₹8,474.58

GST

₹1,525.42

CGST

₹762.71

SGST

₹762.71

IGST

₹0.00

Total

₹10,000.00

How to use this tool

₹1,180 inclusive at 18% → base ₹1,000, GST ₹180. Intra-state: CGST ₹90 + SGST ₹90.

What is reverse GST?: You have an inclusive price. Base = inclusive ÷ (1 + rate/100). GST is the difference.
Which rates?: GST 2.0 (from 22 Sep 2025): 0, 5, 18, 40, plus 3% jewellery and 0.25% rough stones. 12% and 28% are gone for most goods.
CGST vs IGST?: Intra-state splits GST in half. Inter-state is all IGST.
Is this RCM?: No. Reverse charge is a different legal concept. This is just inclusive-to-exclusive math.
Uploaded?: No.