GST Calculator & E-Commerce Profit Margin Calculator
Calculate Inclusive & Exclusive GST (5%, 12%, 18%, 28%) and determine exact net profit margins for Amazon, Flipkart, Meesho, or retail stores instantly.
SGST (50%): ₹450.00
IGST (Inter-state): ₹900.00
Selling on Amazon, Flipkart or Meesho?
Get our E-Commerce Seller Master Toolkit: 500+ verified direct factory wholesale suppliers directory & listing formulas for just ₹99!
How to Calculate GST in India (Formulas & Slabs)
Goods and Services Tax (GST) is an indirect consumption tax levied on the supply of goods and services in India. Calculating GST accurately is vital for business invoices, tax filings, and profit forecasting.
1. Formula for Adding GST (Exclusive GST)
When the initial price does not include GST, calculate the tax amount as:
Net Total = Base Amount + GST Amount
2. Formula for Removing GST (Inclusive GST / Reverse GST)
When the price already includes GST and you want to extract the base value:
Base Amount = Total Amount – GST Amount
Current GST Tax Slabs in India
| Slab | Typical Categories |
|---|---|
| 5% | Essential groceries, transport, basic apparel below ₹1000. |
| 12% | Processed foods, business computers, mobile accessories. |
| 18% | IT software, telecom, financial services, consumer electronics. |
| 28% | Luxury goods, automobiles, high-end entertainment. |
Frequently Asked Questions
What is the difference between CGST, SGST, and IGST?
For sales within the same state (Intra-state), GST is split equally between CGST (Central Government) and SGST (State Government). For sales to another state (Inter-state), the total tax is levied as IGST (Integrated GST).
How can e-commerce sellers calculate net profit accurately?
To calculate exact profit on Amazon, Flipkart, or Meesho: Deduct product manufacturing cost (COGS), marketplace commission fee, shipping/closing fees, and 18% GST on platform fees from your selling price.