VAT Calculator

Calculate VAT (Value Added Tax) quickly and accurately. Add VAT to net prices or remove VAT from gross prices with customizable tax rates for different countries and regions.

Updated June 2026 · How this works

How It Works
The formula, explained simply

The VAT Calculator works by applying standard value added tax formulas to determine the correct amounts for business transactions. When adding VAT to a net price, the calculator multiplies the base amount by the VAT rate percentage to find the tax amount, then adds this to the original price for the gross total. When removing VAT from a gross price, it uses the reverse calculation by dividing the total amount by (1 + VAT rate/100) to find the net amount, with the difference representing the VAT portion. This VAT calculation tool handles both scenarios automatically, ensuring accuracy for invoicing, accounting, and price planning. The calculator supports any VAT rate from 0% to 100%, accommodating different tax jurisdictions worldwide. Whether you're a business owner preparing invoices, an accountant reconciling transactions, or a consumer wanting to understand tax components in pricing, this tool provides instant, precise calculations. The system validates inputs to prevent errors and displays both the result and VAT breakdown for complete transparency. Understanding these calculations is essential for proper financial management, tax compliance, and accurate business pricing strategies in VAT-applicable regions.

When To Use This
Right tool, right situation

Use this VAT calculator when preparing invoices for customers, calculating tax-inclusive or tax-exclusive pricing, reconciling accounting records, determining tax liabilities for business expenses, converting between net and gross amounts for budgeting, or analyzing the tax component of purchase prices for financial planning and compliance purposes.

Common Mistakes
Why results sometimes look wrong

Common VAT calculation mistakes include using incorrect formulas when removing VAT (subtracting percentage instead of dividing), applying wrong tax rates for specific goods or services, confusing net and gross amounts in calculations, and failing to round properly for currency precision. Always verify the applicable VAT rate and calculation direction.

The Math
Worked examples and deeper derivation

VAT calculations use two primary formulas. To add VAT: Gross Amount = Net Amount × (1 + VAT Rate/100), or alternatively, VAT Amount = Net Amount × VAT Rate/100, then Gross = Net + VAT. To remove VAT: Net Amount = Gross Amount ÷ (1 + VAT Rate/100), with VAT Amount = Gross - Net. These formulas ensure mathematical accuracy in tax calculations.

Adding 20% VAT to £100
Amount: £100, VAT Rate: 20%, Type: Add VAT
Net amount £100 + 20% VAT (£20) = £120 gross amount
Removing 15% VAT from €230
Amount: €230, VAT Rate: 15%, Type: Remove VAT
Gross amount €230 ÷ 1.15 = €200 net amount (VAT: €30)

Common questions

How do I calculate VAT on an invoice?
To calculate VAT on an invoice, multiply the net amount by the VAT rate percentage and divide by 100. For example, £100 × 20% = £20 VAT. Add this to the net amount for the gross total (£120).
What is the formula to remove VAT from a price?
To remove VAT from a gross price, divide the gross amount by (1 + VAT rate/100). For 20% VAT: Gross ÷ 1.20 = Net amount. The VAT amount is the difference between gross and net.
How do different VAT rates affect my calculations?
Different countries have varying VAT rates - UK uses 20%, Germany 19%, France 20%. Higher VAT rates result in larger tax amounts. Always use the correct rate for your jurisdiction to ensure accurate value added tax calculations.

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