VAT Calculator
Add or remove Value Added Tax (VAT) with exact decimal precision for invoices and business accounting.
Add VAT
Remove VAT
VAT formulas
Standard formulas for forward and reverse VAT calculation:
Add VAT (Gross)
For example, 20% VAT: Gross = Net × 1.20
Remove VAT (Net)
For example, 20% VAT: Net = Gross ÷ 1.20
Frequently asked questions
How do you calculate VAT?
To add VAT: Gross Amount = Net Amount × (1 + VAT Rate ÷ 100). To remove VAT from a gross amount: Net Amount = Gross Amount ÷ (1 + VAT Rate ÷ 100). For example, at UK standard 20% VAT: a £100 net item becomes £120 gross, and a £120 gross item has a net price of £120 ÷ 1.20 = £100.
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