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40% GST Calculator
40% GST applies to luxury and “sin” goods such as tobacco, pan masala, aerated drinks and high-end cars. Example: ₹1,000 + 40% GST = ₹1,400.00 (GST ₹400.00).
40% GST Calculator
₹
Total amount
₹10,000.00 + ₹4,000.00 GST
Net amount (before GST)
₹10,000.00
GST amount
₹4,000.00
CGST + SGST (intra-state)
₹2,000.00 + ₹2,000.00
Inter-state supplies charge the full amount as IGST instead of CGST + SGST.
Estimates for information only — not financial, tax or investment advice. Rates and rules change; confirm with an official source or a qualified professional. Disclaimer
How to calculate GST
Adding GST: GST = amount × rate ÷ 100; total = amount + GST.
Removing GST: base = total × 100 ÷ (100 + rate); GST = total − base.
Intra-state sales split GST equally into CGST and SGST; inter-state sales charge the full amount as IGST.
Current GST slabs (GST 2.0, from 22 Sept 2025)
- 5% — essentials and many daily-use goods
- 18% — the standard rate for most goods and services
- 40% — luxury and sin goods
- 3% gold & jewellery · 0.25% rough diamonds · nil-rated essentials
Rates for a specific item are set by CBIC notifications — check the official schedule for your HSN/SAC code.
40% GST on common amounts
| Amount (excl. GST) | GST @ 40% | Total (incl. GST) |
|---|---|---|
| ₹100 | ₹40.00 | ₹140.00 |
| ₹500 | ₹200.00 | ₹700.00 |
| ₹1,000 | ₹400.00 | ₹1,400.00 |
| ₹5,000 | ₹2,000.00 | ₹7,000.00 |
| ₹10,000 | ₹4,000.00 | ₹14,000.00 |
| ₹50,000 | ₹20,000.00 | ₹70,000.00 |
| ₹1,00,000 | ₹40,000.00 | ₹1,40,000.00 |
Frequently asked questions
How do I add 40% GST to an amount?
Multiply by 1.4000. For ₹1,000 that is ₹1,400.00.
How do I remove GST from an inclusive price?
Divide by (1 + rate ÷ 100). For example ₹1,180 ÷ 1.18 = ₹1,000 base + ₹180 GST at 18%.
Are 12% and 28% GST still applicable?
Under GST 2.0 most items moved from 12% to 5% and from 28% to 18% (sin goods to 40%) from 22 September 2025. The calculator still supports them for older invoices.