Free GST Calculator
Calculate GST instantly with CGST, SGST, and IGST breakup. Perfect for businesses, invoices, and billing in India.
Advanced: Add Profit Margin
If filled, 'Initial Amount' is treated as Cost Price.
Common Categories
Calculation Summary
India's Smartest Online GST Calculator
Calculating GST shouldn't be a hassle. Whether you are generating an invoice, checking a bill, or calculating profit margins, our free online GST calculator gives you instant, accurate results with full CGST, SGST, and IGST breakdowns.
How to calculate GST?
The formula for calculating GST is simple, but depends on whether the amount is exclusive or inclusive of GST.
1. Add GST (Exclusive)
Use this when you have the base price and need to add GST to get the final selling price.
GST Amount = (Base Price × Rate) / 100
Total = Base Price + GST Amount2. Remove GST (Inclusive)
Use this when you have the final MRP and want to find the original base price and the tax component.
Base Price = Total / (1 + (Rate/100))
GST Amount = Total - Base PriceUnderstanding CGST, SGST, and IGST
India's GST system is a dual-tax model. Depending on where the buyer and seller are located, different taxes apply:
- Intra-State (Same State): When the buyer and seller are in the same state. The GST is split equally into CGST (Central GST) and SGST (State GST). Example: 18% GST becomes 9% CGST + 9% SGST.
- Inter-State (Different States): When the buyer and seller are in different states. The entire tax is collected as IGST (Integrated GST).
Current GST Slab Rates in India (2026)
| GST Rate | Common Items / Services |
|---|---|
| 0% (Nil) | Fresh fruits/vegetables, milk, eggs, bread, salt, printed books. |
| 5% | Packaged food items, footwear (below ₹1000), apparel (below ₹1000), transport services. |
| 12% | Computers, processed food, apparel (above ₹1000), business class air tickets. |
| 18% | IT services, SaaS, telecom, financial services, branded garments, most electronics. (Standard Rate) |
| 28% | Automobiles, luxury items, aerated drinks, tobacco, cement. |
Why choose VyaparGateway GST Calculator?
- 100% Free & No Ads: Use all features without any cost or annoying ads.
- Secure & Private: No data selling. We do not store your financial data on our servers.
- Precise Split: Automatic calculation of CGST, SGST, and IGST based on supply type.
- Fastest Results: Get instant results as you type. No page reloads or "Calculate" buttons needed.
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