Where do US sellers put the IOSS # on the customs forms for packages going to EU countries?

Modified on Tue, 30 Apr at 3:10 PM

This only applies to US sellers that are shipping to an EU country.

United States booksellers will want to put that IOSS # in the"Importers Reference" fields.

Please note: 
This does not apply for consolidated shipping (Asendia) or via DHL.