Tax
GST Calculator
Add or remove GST from any amount instantly
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₹
Results
Pre-GST Amount—
GST Amount—
CGST (50%)—
SGST/UTGST (50%)—
Total Amount—
Pre-GST
GST
Example Calculations
Quick reference scenarios to validate your planning
| Scenario | Result |
|---|---|
| ₹10,000 item at 18% GST (add) | GST: ₹1,800 → Total: ₹11,800 |
| ₹11,800 bill at 18% GST (remove) | Pre-GST: ₹10,000, GST: ₹1,800 |
| ₹1,000 product at 5% GST (add) | GST: ₹50 → Total: ₹1,050 |
How It Works
Formula, methodology and key concepts explained
GST (Goods and Services Tax) in India has 4 main slabs: 5%, 12%, 18%, and 28%. This calculator handles both scenarios — adding GST to get the final price, or stripping GST out of a GST-inclusive price to get the base amount.
Pro Tips for Tax
Expert guidance to get the most out of your calculation
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Frequently Asked Questions
Common questions about GST Calculator
- GST is split equally between Centre and State. CGST (Central GST) and SGST (State GST) are each 50% of the applicable rate. For a 18% rate: CGST = 9%, SGST = 9%. For interstate transactions, IGST (full rate) applies instead.
- To add GST: GST Amount = Price × GST Rate / 100; Total = Price + GST Amount. To remove GST from an inclusive price: Pre-GST = Inclusive Price / (1 + Rate/100); GST Amount = Inclusive Price – Pre-GST.
- Luxury and sin goods: cars, aerated drinks, tobacco, cement, paint, luxury hotels (₹7,500+/night). Many of these also attract additional cess on top of 28%.
Key Numbers to Know
Benchmark figures for Tax planning in India
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Disclaimer: All calculations are estimates for planning purposes only. Results are based on the inputs you provide and assume constant rates. Actual returns may vary due to market conditions, inflation, tax law changes, and other factors. This is not financial advice. Consult a SEBI-registered investment advisor for personalised guidance. GST rates and income tax slabs are as per latest available information (FY 2025-26) and may change.
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