← Blogby Marcell Almeida

How to add or remove VAT and sales tax

Switch between adding tax to a net price or extracting tax from a gross price — any rate.

Invoicing across borders means converting between net and gross prices constantly. The VAT / Sales Tax Calculator handles both directions with a custom rate.

Try it — add or remove tax at any rate

Open full tool →

How it works

  1. Choose mode — add tax to a net amount, or remove tax from a gross total.
  2. Enter the tax rate — e.g. 20 for UK VAT, 8.25 for some US sales tax.
  3. Enter the amount — net or gross depending on mode.

Add vs remove

Add: Gross = Net × (1 + rate/100). A £100 net price at 20% VAT = £120 gross.
Remove: Net = Gross / (1 + rate/100). A £120 gross at 20% VAT = £100 net.

Not tax advice

Rates change by jurisdiction and product category. Always verify current rates with your tax authority.

The How to add or remove VAT and sales tax is free, runs locally, and never sends your data to a server. More business calculators at maratool.com.