Skip to content

GST calculator

Calculate GST for an amount and rate you choose. Switch between adding GST to a taxable amount and removing GST from an inclusive total. This is a calculation aid; choose the applicable rate for your transaction.

No login. Inputs stay in your browser.

Non-negative rupees, up to two decimal places. Indian commas are accepted.

Calculation result

Taxable amount
—
Total GST
—
CGST
—
SGST
—
IGST
—
Total including GST
—

Nearest-paisa rounding. For intra-state supplies, CGST is the rounded half of GST and SGST is the remainder. See the rounding rules below.

How to use this tool

  1. Enter the amount in rupees, with up to two decimal places.
  2. Choose Add GST for a taxable amount, or Remove GST for a total that already includes GST.
  3. Choose a rate, or enter a custom percentage. Select intra-state or inter-state to view the split.
  4. Review the rounded amounts and copy the result.

Common questions

How are amounts rounded?

GST is rounded to the nearest paisa. For an intra-state supply, CGST is half the GST rounded to the nearest paisa; SGST is the remainder, so the split always equals total GST. Removing GST rounds the taxable amount first and uses the remainder as GST.

Does this tool decide which GST rate applies?

No. The selected rate is an input to the calculation. Check the applicable notification or your tax adviser for the rate and treatment of your transaction.

Is my calculation saved?

No. The calculation runs in this browser without an account or a request containing the entered amount.

Medical Store Billing Software

Bill medicines by batch in seconds, keep a watch on expiry dates, manage purchases from distributors and print GST invoices on thermal, A5 or A4 printers.

Explore Medical Store Billing

General Store GST Billing Software

Create B2B and B2C GST invoices, bill quickly with barcodes, track stock and customer credit, and share tax summaries with your accountant.

Explore General Store GST Billing