⚡ Instant Calculation

Free GST Calculator India 2026

Calculate CGST, SGST & IGST on any amount instantly. Supports all GST slabs — 5%, 12%, 18%, 28%. Add GST or remove it with reverse calculation.

All GST Slabs Add & Remove GST CGST + SGST / IGST No Login Required

GST Calculator

Enter amount, select GST rate & hit Calculate

₹
Calculation Breakdown
Base Amount
Total Tax
Total (with GST)

📋 GST Rate Reference

RateCategory Examples
0%Milk, bread, fresh vegetables, books
5%Packaged food, footwear <₹1000, economy hotels
12%Mobile phones, processed food, business hotels
18%IT services, restaurants, electronics, most goods
28%Cars, luxury goods, tobacco, cement, AC

💡 How GST Works

₹ Exclusive GST — Tax is added on top of the base price (most B2B transactions).
− Inclusive GST — Tax is already included in the price shown (MRP on consumer products).
🌐 CGST + SGST for intra-state supply (goods sold within the same state), split equally.
🚨 IGST for inter-state supply (goods sold across state borders).

📋 Need a GST Invoice?

Once you have your GST amount, generate a fully compliant GST invoice with auto-filled CGST, SGST & IGST — free, no login, instant PDF download.

Create Free Invoice →
About This Tool

How to Use the Free GST Calculator

1️⃣

Enter the Amount

Type the price of your product or service in the amount field. For exclusive calculation, enter the base price before tax. For inclusive (reverse), enter the final MRP or price with GST already included.

2️⃣

Choose the GST Rate

Select from the standard GST slabs — 0%, 5%, 12%, 18%, or 28%. If your product has a custom rate (like 0.25% for diamonds or 3% for gold), enter it in the custom rate field.

3️⃣

Select Tax Type & Calculate

Choose Intra-State (CGST + SGST, for same-state transactions) or Inter-State (IGST, for cross-state transactions). Hit Calculate to see the full breakdown instantly.