Online GST Calculator (GST Inclusive & Exclusive Tax Slabs)
The Goods and Services Tax (GST) is a unified indirect tax levied across India. Whether you are a retailer, freelancer, e-commerce seller, or consumer, computing tax components accurately is necessary for invoicing and tax filings. SizeFix GST Calculator enables you to calculate both GST Exclusive (adding tax to base price) and GST Inclusive (extracting reverse tax from MRP) across all official slabs (3%, 5%, 12%, 18%, and 28%) with CGST/SGST bifurcation.
Step-by-Step Instructions
1
Choose Calculation Mode
Select 'GST Exclusive' to add tax, or 'GST Inclusive' to extract tax from an MRP price.
2
Enter Amount & Select Rate
Input product price and click a slab button (e.g. 18% for services and IT).
3
View Detailed Breakdown
Instantly inspect Net Base Amount, Total GST Tax, CGST/SGST split, and Final Invoice Total.
Official Indian GST Tax Slab Classification
| GST Tax Slab | Applicable Goods & Services | CGST Rate | SGST Rate |
|---|---|---|---|
| 0% (Exempt) | Fresh fruits, vegetables, milk, curd, unbranded grains | 0% | 0% |
| 3% Slab | Gold, silver, diamonds, precious jewelry and platinum | 1.5% | 1.5% |
| 5% Slab | Packaged food, edible oil, tea, coffee, life-saving medicines | 2.5% | 2.5% |
| 12% Slab | Processed food, computers, business class air tickets | 6.0% | 6.0% |
| 18% Slab (Standard) | IT services, telecommunications, restaurants, financial services | 9.0% | 9.0% |
| 28% Slab (Luxury) | Automobiles, tobacco, aerated drinks, high-end consumer goods | 14.0% | 14.0% |
Frequently Asked Questions (FAQ)
What is the difference between CGST, SGST, and IGST?
For intra-state transactions (seller and buyer in the same state), GST is split equally into CGST (Central) and SGST (State). For inter-state transactions (different states), Integrated GST (IGST) is charged at the full slab rate.
What is the formula to remove GST from an inclusive MRP price?
GST Amount = MRP - [MRP x (100 / (100 + GST%))]. Net Base Price = MRP - GST Amount. For example, Rs 1,180 with 18% GST has a base price of Rs 1,000 and GST of Rs 180.
What is the formula to add GST to an exclusive base price?
GST Amount = (Base Price x GST%) / 100. Total Invoice Price = Base Price + GST Amount.