GST Calculator

This step-by-step guide will help you calculate GST (Goods and Services Tax) for your transactions:

Step 1: Enter the Amount

1. Locate the "Original Amount (₹)" field
2. Enter the base amount before GST is applied (for exclusive calculation)
   • OR enter the total amount including GST (for inclusive calculation)
3. Example: Enter "1000" for ₹1,000

Step 2: Select GST Rate

1. Choose from the predefined GST rates in the dropdown:
   • 5% (Essential goods)
   • 12% (Standard rate for some goods/services)
   • 18% (Default selected - Standard rate)
   • 28% (Luxury/sin goods)
   • Custom (For any other rate)
2. If selecting "Custom":
   • A new field will appear
   • Enter your specific GST percentage (e.g., "15" for 15%)

Step 3: Choose Calculation Type

1. Select one of these radio buttons:
   • Exclusive of GST: Calculate GST to be added to your entered amount
   • Inclusive of GST: Calculate how much GST is included in your entered amount

Step 4: Calculate GST

1. Click the "Calculate GST" button
2. Results will appear showing:
   • Original Amount (before GST for exclusive, after removing GST for inclusive)
   • GST Rate applied
   • GST Amount calculated
   • Total Amount (including GST)

Understanding the Calculations

Exclusive Calculation Example:

• Amount entered: ₹1,000
• GST Rate: 18%
• Calculation:
  • GST Amount = ₹1,000 × 18% = ₹180
  • Total = ₹1,000 + ₹180 = ₹1,180

Inclusive Calculation Example:

• Amount entered: ₹1,180
• GST Rate: 18%
• Calculation:
  • Original Amount = ₹1,180 ÷ (1 + 18%) = ₹1,000
  • GST Amount = ₹1,180 - ₹1,000 = ₹180

Additional Features

• Mobile Friendly: Adapts to smaller screens
• Instant Results: Calculations appear immediately
• Clear Formatting: Results show with proper currency formatting (₹ and 2 decimal places)

Tips for Best Results

1. Always double-check whether your amount is exclusive or inclusive of GST
2. For custom rates, ensure you enter the percentage value correctly
3. The calculator automatically rounds to 2 decimal places for currency accuracy
4. You can recalculate with different rates/types without refreshing

This tool is particularly useful for:

• Business owners calculating taxes on invoices
• Consumers checking GST breakdown on purchases
• Accountants verifying tax amounts
• Students learning about GST calculations