GST Calculator (India)
Calculate Indian Goods and Services Tax (GST) with standard slabs (5%, 12%, 18%, 28%), reverse GST, and CGST/SGST/IGST breakdown.
1How to Use GST Calculator (India)
The Indian Goods and Services Tax (GST) is a unified destination-based indirect tax levied on the supply of goods and services.
- Step 1.Enter your base transaction amount in Indian Rupees (INR).
- Step 2.Choose whether your amount is GST Exclusive (add tax) or GST Inclusive (reverse embedded tax).
- Step 3.Click your applicable GST rate slab (5%, 12%, 18%, 28%) or type a custom rate.
- Step 4.Toggle between Intra-State (CGST + SGST) or Inter-State (IGST) to see the exact tax split.
2Formulas, Methodology & Key Features
Official GST Mathematical Formulas
GST calculations follow two standard equations depending on whether tax is added or reversed:
3Official Indian GST Slabs & Common Goods Classification
| GST Slab | CGST + SGST Split | IGST Rate | Common Items & Services Included |
|---|---|---|---|
| 0% (Exempt) | 0% + 0% | 0% | Fresh milk, fruits, unbranded flour, eggs, bread |
| 5% (Basic) | 2.5% + 2.5% | 5% | Packaged food items, footwear under ₹1000, domestic air travel |
| 12% (Standard I) | 6% + 6% | 12% | Computers, processed foods, business class air tickets |
| 18% (Standard II) | 9% + 9% | 18% | Software SaaS, telecom services, restaurants, IT services |
| 28% (Luxury) | 14% + 14% | 28% | Automobiles, luxury goods, aerated beverages, gaming |
?Frequently Asked Questions (FAQ)
Common questions answered about GST Calculator (India).
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