GST / VAT Calculator
Calculate tax amounts
How the GST / VAT Calculator Works
The GST / VAT Calculator helps you add tax to a base price or remove tax from an inclusive price. Select the calculation type, enter the amount, choose a common tax rate or enter a custom one, and the calculator instantly shows the tax amount, the tax-inclusive price, and the tax-exclusive price. It also generates a comparison table showing how different tax rates affect the final price.
This tool is invaluable for business owners preparing invoices, shoppers verifying prices, accountants reconciling tax amounts, and anyone who needs to quickly convert between tax-inclusive and tax-exclusive pricing.
Formula
GST Amount = Price × (GST Rate / 100)Tax-Inclusive Price = Price + GST AmountTax-Exclusive Price = Inclusive Price / (1 + GST Rate / 100)
For example, adding 10% GST to a $100 item: GST = $100 × 0.10 = $10, so the inclusive price is $110. Conversely, if a price tag shows $110 including 10% GST, the base price is $110 / 1.10 = $100.
GST vs VAT: Understanding the Difference
GST (Goods and Services Tax) is a comprehensive consumption tax used in countries like Australia (10%), India (5–28%), Canada (5%), New Zealand (15%), and Singapore (9%). In some countries, GST uses multiple rate slabs for different categories of goods and services.
VAT (Value Added Tax) is the equivalent tax system used primarily in Europe and much of the rest of the world. Standard VAT rates range from 17% in Luxembourg to 27% in Hungary. VAT is collected at each stage of the supply chain, with businesses claiming input tax credits for VAT paid on their purchases.
While the mechanics are similar — both are consumption taxes borne by the end consumer — the key differences lie in rate structures, exemptions, and administrative implementation. Understanding whether your jurisdiction uses GST or VAT ensures you apply the correct rate and comply with local tax regulations.
Frequently Asked Questions
Related tools: Tax Calculator for income tax estimates, Discount Calculator for price reductions, or Tip Calculator for gratuity calculations.
This calculator is for informational purposes only and does not constitute financial advice.
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