GST/VAT Calculator - Free Online Tool

How to Use GST/VAT Calculator

Enter the base amount in the input field (e.g., 1000).
Select or enter the GST/VAT rate (default is 18%). You can use the quick buttons for 5%, 12%, 18%, or 28%.
Choose the mode:
- Exclusive: Add tax to the base amount (tax is calculated on top of the base).
- Inclusive: Remove tax from the total amount (tax is included in the total).
The Net Amount, Tax Amount, and Gross Total will be displayed instantly.
The Effective Tax Rate shows the actual percentage of tax applied.

💡 Pro Tip: Use the quick rate buttons for common GST rates in India (5%, 12%, 18%, 28%). Perfect for billing, invoicing, and tax calculations.

Why Use GST/VAT Calculator

✅ 100% client-side processing - your financial data stays private

✅ Supports both Exclusive (Add Tax) and Inclusive (Remove Tax) modes

✅ Quick preset buttons for 5%, 12%, 18%, and 28% GST rates

✅ Instant results with no server delays

✅ Completely free to use with no registration required

✅ Displays Net Amount, Tax Amount, Gross Total, and Effective Tax Rate

✅ Ideal for business owners, accountants, and freelancers

💰 GST/VAT Calculator