Finance · Tax
GST Split Calculator
Split GST into CGST/SGST (intra-state) or IGST (inter-state) — live as you move the sliders.
GST split details
1,000 – 1 Crore
Common rates: 5 · 12 · 18 · 28
Invoice total
—
How this calculator works
Intra-state supplies split into CGST and SGST; inter-state uses IGST. This calculator shows that breakup so your invoice looks the way the portal expects.
Pick the right place-of-supply story first.
- Choose Exclusive or Inclusive mode.
- Enter taxable value (₹1,000 – ₹1 Crore).
- Enter GST rate and choose CGST + SGST or IGST.
- Read the split and invoice total — results update live.
Formula
total GST = taxable × rate/100
Exclusive: . Inclusive: GST = amount × rate/(100+rate). Intra: CGST = SGST = total/2. Inter: IGST = total.
Examples
More about this calculator
Practical use cases
Small businesses drafting proforma invoices. Explaining a bill to a client. Teaching place-of-supply basics.
Common mistakes
Charging both IGST and CGST/SGST on the same line. Using billing address instead of place of supply.
Tips
Keep CGST and SGST rate fields equal in your accounting software templates.
Important notes
Not tax advice. Place-of-supply rules can be nuanced — confirm with a GST practitioner.
FAQs
Typically when place of supply is in a different state (inter-state).
For a standard rate split, yes — each is half of the GST amount.
In some Union Territories you may see UTGST with CGST — same half-and-half idea for many rates.