All US formed entities and US operations of foreign entities complete Form W-9. If you hold a permanent work Visa and reside in the US you may also complete a W-9. All others are considered to be non-US persons (also known as nonresident aliens) and will be required to complete a Form W-8.
For U.S. citizens living outside the U.S. you will enter your INTERNATIONAL ADDRESS on the W9. You'll need to leave the country blank so that it will save. Don't worry! These forms will not be mailed.
If the owner of the disregarded entity is a foreign person, the owner must complete an appropriate Form W-8 instead of a Form W-9.
8BENE. The purpose of the 8BENE formthe Certificate of Foreign Status of Beneficial Owner for United States Tax ithholding and Reportingis for foreign entities, not individual workers.
The purpose of a Substitute Form W-9 is to provide a Federal Taxpayer Identification Number (TIN), official entity name, a business designation (sole proprietorship, corporation, partnership, etc.), and other taxpayer information to the State.
The person who signs a W-9 must be a U.S. person, an individual who is a U.S. citizen or a U.S. resident alien.
Only US-based companies need to collect Forms W-8 or W-9. If a company is based outside of the US, there's no need to collect them. The tax compliance matter still needs to be handled, but it's going to be ing to the laws of the country where the company is located.