Add or remove VAT and sales tax at any rate, with the net, tax, and gross shown together.
Free, runs entirely in your browser, and nothing you enter is ever uploaded to a server.
Adding takes a net price and puts tax on top. Removing takes a gross price that already includes tax and works backwards to the net figure.
Whichever applies where you trade — 20% in the UK, 19% in Germany, 21% in the Netherlands and so on. Type any rate you need.