Noun
W-8BEN (plural W-8BENs)
(US, taxation) A form to declare that someone is not a U.S. tax payer or to request reduced tax withholding.
A W-8BEN form is used to confirm that you are not a US taxpayer, and are either being paid in USD, or have met a certain criteria outlined below. Source: Internet
S. Person status on IRS Form W-8BEN. Source: Internet