Step-by-Step Guide for Foreigners Applying for a Turkish Tax Number. Expanding your business, opening a bank account, or purchasing property in Turkey all require one fundamental piece of identification: the Turkish Tax Number. For foreign nationals, obtaining this number can seem daunting without local insight. This Step-by-Step Guide for Foreigners Applying for a Turkish Tax Number walks you through every requirement and best practice to secure your unique tax identifier swiftly and compliantly. What Is a Turkish Tax Number and...