I’ve read so many resources but can’t seem to work out how we have to improve our woocommerce shop.

We run a woocommerce marketplace with front end submissions, where members from any country can sell their products and services to website visitors from any country. http://aelia.co/shop/currency-switcher-woocommerce/ and https://www.simbahosting.co.uk/s3/product/woocommerce-eu-vat-compliance/ could be very helpful if we were the seller. We are not, we merely provide a service to sellers.

Anyone an idea how we can make sure the correct shop-base VAT tariff of every seller will be calculated automatically?