How to use the GST Calculator

This GST calculator helps you quickly calculate the Goods and Services Tax (GST) amount for any price in India. To use the calculator:

• Enter the amount you want to calculate GST on.
• Select the applicable GST rate (0%, 5%, 12%, 18% or 28%).
• Choose whether the amount is Exclusive GST or Inclusive GST.
• The calculator will instantly show the base amount, GST amount, and the total payable amount.

What do GST rates (5%, 12%, 18%, 28%) mean?

In India, GST is charged at fixed slab rates decided by the government. Every product or service falls under one of these GST slabs:

• 0% GST – Essential goods like fresh food items.
• 5% GST – Basic necessities and common services.
• 12% GST – Standard goods with moderate taxation.
• 18% GST – Most services and commonly used products.
• 28% GST – Luxury items and high-end goods.

These rates are fixed by law, which is why the calculator only shows these options.

Difference between Exclusive GST and Inclusive GST

Understanding whether GST is inclusive or exclusive is important to get accurate results:

• Exclusive GST means GST is added on top of the entered amount. This is commonly used in business invoices and service quotations.
• Inclusive GST means GST is already included in the entered amount. This is commonly seen in MRP prices and retail billing.

GST calculation example

If the amount is ₹1,000 and the GST rate is 18%:

• Exclusive GST: GST = ₹180, Total Amount = ₹1,180
• Inclusive GST: Base Amount = ₹1,000, GST = ₹180 (already included in ₹1,180)

Who can use this GST Calculator?

This calculator is useful for individuals, freelancers, shop owners, students, and small business owners who want to quickly understand how much GST applies to a given amount without dealing with complex tax calculations.

Learn more about GST

If you want to understand GST in more detail, these official and trusted resources are recommended:

• ClearTax – GST explained in simple terms
• Razorpay Learn – Complete GST guide
• Wikipedia – GST (India)