GST Split Calculator (CGST/SGST/IGST)
Split GST into CGST + SGST (intra-state) or IGST (inter-state).
Enter your details
How it is calculated
Worked example
₹1,00,000 taxable value at 18%: total GST ₹18,000. Within the state: CGST 9% = ₹9,000 + SGST 9% = ₹9,000. Across states: IGST 18% = ₹18,000.
About the GST Split Calculator (CGST/SGST/IGST)
Split GST into CGST + SGST (intra-state) or IGST (inter-state). This free gst tool runs entirely in your browser: nothing you type is sent to a server, and you can save, print or download the result.
What you need to enter
You will be asked for amount, the amount is, gst rate, custom gst rate (%) — used only if "custom rate" is selected, place of supply. Fields marked * are required. Every field shows a hint and the allowed range.
How to use it
- Fill in the inputs (sample values are pre-filled so you can see how it works).
- Press Calculate to see the result, breakdown and chart.
- Use Print, Download PDF or Share to keep the result, or come back to it from your saved history.
Who it helps
Salaried individuals, business owners, investors and professionals who want a quick, transparent estimate before they file, invest or plan. If your case has special facts, our team can review it - ask for a consultation.
Results are estimates based on the rules and rates described under "How it is calculated". Laws change and individual facts differ, so confirm with official sources or a qualified professional before acting. This is not tax, legal or investment advice.
Frequently asked questions
How do I know whether to charge CGST+SGST or IGST?
Compare the supplier's location with the place of supply. If both are in the same state/UT it is intra-state; otherwise inter-state. For goods the place of supply is usually where delivery ends.
Is the total tax different for IGST and CGST+SGST?
No. The total rate is the same; only the tax heads and who receives the revenue differ. This affects how input tax credit is set off in GSTR-3B.
Need help beyond the calculator?
Talk to our tax and compliance team for advice based on your documents.