What is GST Calculator & Slabs?
GST Calculator (माल और सेवा कर कैलकुलेटर) serves as a direct utility for businesses, consumers, and tax professionals in India. It computes the CGST, SGST, and IGST breakdowns for transactions under various tax rates.
Under the Indian taxation structure, Goods and Services Tax (GST) is categorized into four primary slabs:
- 5% Slab: Essential goods such as sugar, tea, domestic LPG, and basic edible oils.
- 12% Slab: Standard products like butter, computers, mobile phones, and processed foods.
- 18% Slab: The most common rate, covering general software, services, AC restaurants, and capital goods.
- 28% Slab: Luxury and demerit items such as cars, tobacco, cement, and aerated drinks.
GST Calculation Formula
Depending on whether tax is added or extracted, calculations follow two main formulas:
GST Exclusive (ब्याज रहित - Add GST on top):
GST Inclusive (ब्याज सहित - Extract GST from total):
GST Slab Reference Table
| GST Slab | Applicability / Common Categories | Intra-state split (CGST + SGST) | Inter-state (IGST) |
|---|---|---|---|
| 5% | Edible oil, tea, basic foods | 2.5% CGST + 2.5% SGST | 5% IGST |
| 12% | Computers, cellular devices, processed foods | 6% CGST + 6% SGST | 12% IGST |
| 18% | IT services, AC dining, standard services | 9% CGST + 9% SGST | 18% IGST |
| 28% | Automobiles, cement, luxury products | 14% CGST + 14% SGST | 28% IGST |
"18% GST pe ₹1000" - Real-world Example
Let's calculate the tax breakdown for ₹1,000 at 18% GST rate:
- GST Exclusive: Base Price = ₹1,000. GST = 1000 × (18/100) = ₹180. Total Bill = ₹1,180. Splits: CGST = ₹90, SGST = ₹90 (or IGST = ₹180).
- GST Inclusive: Total Bill = ₹1,000. Base Price = 1000 / 1.18 = ₹847.46. GST Component = 1000 - 847.46 = ₹152.54. Splits: CGST = ₹76.27, SGST = ₹76.27 (or IGST = ₹152.54).
B2B Invoicing & Input Tax Credit (ITC)
For B2B (Business-to-Business) transactions, GST paid on purchases can be claimed back as Input Tax Credit (ITC) to offset tax liability on sales. Our CGST, SGST, and IGST breakdowns provide direct inputs required for generating GST-compliant invoices and claiming ITC smoothly.
Frequently Asked Questions
1. GST kaise calculate karein — formula kya hai?
For GST Exclusive, GST Amount = Original Price × GST Rate / 100. For GST Inclusive, GST Amount = Total Price - [Total Price / (1 + GST Rate / 100)].
2. CGST, SGST, and IGST mein kya difference hai?
CGST (Central GST) and SGST (State GST) apply to intra-state sales, dividing the tax revenue equally between the Centre and the State. IGST (Integrated GST) applies to inter-state sales and imports, collected in a single line item.
3. ₹1,000 pe 18% GST lagane ke baad total bill kitna hoga?
If ₹1,000 is GST Exclusive, adding 18% GST (₹180) brings the total bill to ₹1,180. If the ₹1,000 is GST Inclusive, the base price is ₹847.46 and the tax component is ₹152.54.
Calculate GST Instantly!
Enter your amount, select the rate, and get complete GST breakdown — it's free, fast, and completely private!
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