We are trying to define the reporting requirements for foreign vendors. The IRS does not provide definite answers in that area.
Do you require foreign vendors to sign W9 or W8? How do you decide which forms are needed?
If the vendors are foreign but are also incorporated in the US, they would be required to provide W9. However, there are vendors/consultants who operate only in foreign countries and do not have EIN/SSN numbers. If that is the case, should we require W8 instead?