Mavenseed supports tax handling for U.S. Sales tax and European VAT. During the customer's purchase we determine their location and charge the necessary taxes, so long as you have configured one or more tax options in your site settings.
The tax collection choices are U.S. Sales tax and EU VAT. Each of these may be configured in Settings > Taxes.
Do you need another tax option? Get in touch and let us know by emailing us!