GST Calculator

Add or remove GST at any slab and split it into CGST, SGST or IGST.

Tax rules change with each finance act. Confirm the current slabs, cess and surcharge before filing.

GST Calculator inputs
Total (with GST) โ‚น11,800.00
Base Amount
โ‚น10,000.00
GST Amount
โ‚น1,800.00
CGST
โ‚น900.00
SGST
โ‚น900.00
IGST
โ‚น0.00

Base / GST

GST = (Base ร— Rate) divided by (100), โ€ƒ Base = (Total ร— 100) divided by (100 + Rate)
GST
GST Amount
Base
Base Amount
Total
Total (with GST)

10,000 + 18% GST = 11,800 with 900 CGST and 900 SGST.

How is GST calculated?

GST Calculator uses the formula GST = (Base x Rate) / (100), Base = (Total x 100) / (100 + Rate). Enter your own figures above and the result updates instantly in your browser.

What information do I need to use this calculator?

You need amount, gst rate, amount type and type of supply. Every field starts with a realistic default so you can see how the calculation behaves before entering your own numbers.

What do the results show?

The headline figure is total (with gst). Alongside it you also get base amount, gst amount, cgst, so you can see the full picture rather than a single number.