Are you an Amazon seller?Do you use the Amazon logistic center in Madrid or Barcelona? It is mandatory to register for VAT in two cases: if you have stock in a warehouse in Spain or if you sell over 35,000€ per year. That is why Amazon requires a VAT number in Spain. You will need the VAT number to sell to your customers because it is mandatory to identify yourself on your invoices and to file Spanish VAT tax forms. Be aware that if you don't have a VAT number, Amazon can legally block your seller account. This applies to Seller Pro and Amazon logistics services. There are different options to register your business in Spain:
There are other options, such as creating a branch office in Spain, but these options are more expensive and are not the best fit for Amazon's request.
FAQs from Amazon about VAT