GST calculator
Work out GST in seconds. Add GST to a price, or find the price before GST from an inclusive amount, with the CGST/SGST or IGST split for your invoice.
Since 22 Sep 2025 most items are at 5% or 18%, with 40% for luxury and sin goods. 12% and 28% are kept for older invoices.
GST breakdown
- Net amount
- ₹1,000.00
- CGST 9%
- ₹90.00
- SGST 9%
- ₹90.00
- Total GST
- ₹180.00
- Total amount
- ₹1,180.00
How to calculate GST
- 1
Enter the amount
The price before GST, or the total that already includes GST.
- 2
Pick the rate
5%, 18%, 40% or any other rate.
- 3
Read the split
Net amount, CGST, SGST or IGST, and the total.
Questions people ask
How do I remove GST from a price?
Choose “Remove GST” and enter the total. Net amount = total ÷ (1 + rate/100). For 18% GST on ₹1,180, the net amount is ₹1,000.
CGST + SGST or IGST?
Within the same state the GST splits equally into CGST and SGST. Between states, the full amount is IGST.
Which GST rates apply now?
Since 22 September 2025 most goods and services are at 5% or 18%, with 40% for luxury and sin goods. 12% and 28% remain in the list for older invoices.
Is it free?
Yes, completely free with no limit.
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