I opened Amex personal savings when I lived in U.S. with U.S visa. But now I moved to Germany due to my job and no longer live in U.S.
For TAX reason, Do I need to send W-8 BEN form to Amex national bank? If so, Do I need to inform that I live in Germany before I send W-8 BEN?
I checked their website but there was no instruction about this.