How This Calculator Works
VAT calculations follow two simple formulas depending on direction:
To add VAT to a net amount:
Gross = Net × (1 + VAT rate)
VAT amount = Net × VAT rate
To extract VAT from a gross amount:
Net = Gross ÷ (1 + VAT rate)
VAT amount = Gross − Net
For example, with 20% VAT: a €100 net price becomes €120 gross. To extract from €120 gross: €120 ÷ 1.20 = €100 net, with €20 VAT. The key insight is that VAT is always calculated on the net amount, never on the gross.
When to Use This Calculator
Use the VAT calculator when you need to:
- Price products for sale in VAT-registered regions (EU, UK, Australia, etc.)
- Prepare invoices for international B2B clients
- Verify that a VAT amount on a receipt or invoice is correct
- Convert between net (ex-VAT) and gross (inc-VAT) pricing
- Compare effective tax burden across different VAT jurisdictions when expanding internationally
Example Calculation
A UK business sells consulting services for £2,000 net. UK VAT is 20%.
- VAT amount: £2,000 × 0.20 = £400
- Gross (invoice total): £2,000 × 1.20 = £2,400
Reverse direction: an invoice shows £600 gross including 20% VAT.
- Net: £600 ÷ 1.20 = £500
- VAT: £600 − £500 = £100
Always confirm which direction your invoice is quoted — net pricing is common in B2B, gross pricing in B2C.