The rules, filing procedures, time limits and documentation requirements vary from country to country. All claims must be submitted on official documents, in the language of the country claimed from. Some countries require that VAT claims for refund be submitted by registered agents. Only original invoices can be submitted. Every country sets minimum reclaims.
Different countries have different deadlines for accepting reclaim applications.
Some critical time restrictions also apply. Some countries honor retroactive claims, most will not. Due to these problems, all European and Canadian orders will have the average VAT tax added to their order.