GST on ₹1,00,000
GST on ₹1,00,000 at 18% is ₹18,000. Total payable: ₹1,18,000.
Try it with your own numbers — open the GST Calculator →By the Free Tools Galaxy Team · Reviewed June 2026 · Calculated privately in your browser
Formula
GST = amount × rate ÷ 100 = ₹1,00,000 × 18 ÷ 100 = ₹18,000 Total = amount + GST = ₹1,00,000 + ₹18,000 = ₹1,18,000
Step-by-step explanation
For a 18% GST slab, multiply the base amount ₹1,00,000 by 18% to get the tax (₹18,000). Add it to the base amount to get the final price including GST: ₹1,18,000. Split equally, that is CGST ₹9,000 + SGST ₹9,000 for intra-state supply.
Frequently asked questions
How much is 18% GST on ₹1,00,000?+
It is ₹18,000, so the total becomes ₹1,18,000.
What is the CGST and SGST split?+
For intra-state supply it splits into CGST ₹9,000 and SGST ₹9,000.
How is GST calculated?+
GST = base amount × GST rate ÷ 100. Here ₹1,00,000 × 18% = ₹18,000.
How this is calculated
This result is computed live in your browser using the formula shown above — nothing is sent to a server. Figures are estimates for general information, not professional advice; verify important decisions with a qualified expert. Last reviewed June 2026.