We are located in France so we follow the European Union VAT rules.
If you are located in France, you will pay 20% taxes (regardless the fact you are a company or not... but you can get it back if you're a company)
If you are located in an European Union country and didn't specify your VAT number on the checkout process, your own country tax rate will be added
If you are located in an European Union country and specified your VAT number on the checkout process, you will pay our products tax free
If you are located out of the European Union, the price will always be tax free