GST VAT Calculator

The GST/VAT Calculator computes Goods and Services Tax or Value Added Tax on purchases and sales. It calculates the tax-inclusive and tax-exclusive prices, helping businesses with invoicing, pricing strategy, and tax compliance across different countries and tax rates.

How the Formula Works

Tax Amount = Net Price × (Tax Rate ÷ 100). Gross Price = Net Price + Tax. Net Price = Gross Price ÷ (1 + Tax Rate ÷ 100).

How to Use This Calculator

  1. Enter the price (before or after tax)
  2. Enter the GST/VAT rate for your country
  3. Select whether the entered price includes or excludes tax
  4. View the net price, tax amount, and gross price

Tips & Best Practices

  • When quoting prices to consumers, many countries require showing the tax-inclusive (gross) price
  • B2B transactions often quote tax-exclusive (net) prices
  • Keep records of all VAT/GST paid on business purchases — you can usually claim it back as input tax credit

Important Limitations

  • Tax rates change — always verify current rates with your local tax authority
  • Does not handle complex multi-rate scenarios or exemptions
  • VAT/GST rules for digital services and cross-border transactions are complex and country-specific
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