It is the tax number that Amazon requires the seller to fill in in the background, and the format is12/123/12345, which is also used by the seller when paying taxes. The reason why it is ignored is that Amazon backstage requires sellers to fill in the German VAT tax number starting with DE;

② Temporary tax number: used to pay taxes for old accounts, which will become invalid after tax payment;

③ German VAT tax number: the format is DE 123456789, and the German VAT tax number is mainly used to invoice buyers.

Other EU countries have similar tax numbers. For example, France's VAT number starts with FR, while Spain's VAT number starts with ES. This can be understood as the member States in the EU system make it easier for everyone to distinguish which country issues invoices.

However, among all EU countries, there is only one exception:

Britain has one and only one tax number.

German tax payment certificate: it is a tax payment certificate, which proves that the seller truthfully declares tax payment every month.