New line 3b has been added to this form. Foreign vendors do not complete the Substitute Form W-9; foreign persons or entities must submit one of five available forms.Form W9 is a commonly used IRS form for providing necessary information to a person or company that will be making payments to another person or company. As a non-resident alien, you would not complete form W-9. You would likely provide form W-8ECI; possibly W-8BEN. If you no longer have a permanent foreign residence, enter a complete foreign (nonU. Only USbased companies need to collect Forms W8 or W9. If a company is based outside of the US, there's no need to collect them. PAYEE INFORMATION FORM-SUBSTITUTE W-9. Enter foreign city, province or state, foreign postal code, and country.