GST calculator
Add GST to a price or take it out of one, and see the CGST, SGST or IGST split. Free, no sign-up.
Total
₹11,800.00
- Taxable value
- ₹10,000.00
- CGST
- ₹900.00
- SGST
- ₹900.00
- IGST
- ₹0.00
- Total GST
- ₹1,800.00
How the calculator works
How is GST worked out on an amount before tax?
GST = amount × rate ÷ 100. On ₹1,000 at 18%, GST is ₹180 and the total is ₹1,180.
How do I take GST out of an amount that already includes it?
Taxable value = amount × 100 ÷ (100 + rate). From ₹1,180 at 18%, the taxable value is ₹1,000 and GST is ₹180.
When is it CGST and SGST, and when IGST?
A sale within your own state carries CGST and SGST, half each. A sale to another state carries IGST at the full rate.
How are paise rounded here?
Tax is rounded to the nearest paisa, half up, and the parts always add back to the total. When the tax has an odd paisa, it goes to SGST.
Bills that do this for you.
TALLISFY works out GST on every line, picks CGST and SGST or IGST from the place of supply, and keeps your GSTR-1 ready. Start on the Free plan.