GST Calculator (India)
Calculate GST-inclusive and exclusive prices instantly for Indian GST rates.
What is GST?
GST (Goods and Services Tax) is a value-added tax levied on most goods and services sold for domestic consumption in India. This calculator helps you compute GST amounts for your business transactions.
✅ Best for: Small business owners, accountants, freelancers, shoppers.
GST rates in India
5% GST
Essential items: edible oils, sugar, tea, coffee, spices, life-saving drugs, railway travel.
12% GST
Processed food, butter, ghee, almonds, mobile phones, frozen meat, Ayurvedic medicines.
18% GST
Most goods and services: soaps, hair oil, toothpaste, capital goods, industrial intermediaries, restaurants (non-AC).
28% GST
Luxury and sin goods: luxury cars, tobacco products, aerated drinks, high-end motorcycles, pan masala.
Examples
Example 1: Add GST (Exclusive to Inclusive)
Input: Amount = ₹1,000, GST = 18%
GST Amount: ₹180
Total (Inclusive): ₹1,180
Example 2: Remove GST (Inclusive to Exclusive)
Input: Amount = ₹1,180, GST = 18%
Base Price (Exclusive): ₹1,000
GST Amount: ₹180
Example 3: 5% GST on essential items
Input: Amount = ₹500, GST = 5%
GST Amount: ₹25
Total (Inclusive): ₹525
Common mistakes to avoid
- ❌ Using the wrong GST rate for your product/service
- ❌ Confusing exclusive vs inclusive calculation
- ❌ Forgetting to add GST to your pricing
- ❌ Not updating GST amounts on invoices
Best practices
- ✅ Always verify the correct GST rate for your HSN/SAC code
- ✅ Display GST-inclusive prices for retail customers
- ✅ Show GST breakup on invoices for B2B transactions
- ✅ Keep records of all GST calculations for tax filing
Frequently asked questions
For intra-state sales: CGST (Central) + SGST (State) = Total GST. For inter-state sales: IGST (Integrated GST) = Total GST.
If your annual turnover exceeds ₹40 lakhs (₹20 lakhs for special category states) for goods, or ₹20 lakhs for services, you need GST registration.
5% GST for non-AC restaurants, 18% for AC restaurants. No GST on takeaways below ₹100 (some states).
Use the "Remove GST" option above. Enter the inclusive amount, and the calculator shows the exclusive price.