2018-12-17
If you are an individual who is not a U.S. person (i.e., not a U.S. tax resident or a U.S. citizen) and you perform services from outside the U.S. for a U.S. customer, the U.S. customer that is paying you may ask you to fill out Form W-8BEN. If the U.S. customer does not receive the W-8BEN from you, they may be required to withhold a 30% U.S. tax on the gross payments to you.
At the bottom of Form W-8BEN, just above your signature, there are certain things that you are certifying. By signing the Form W-8BEN you are certifying, under penalties of perjury, that:
As mentioned above, if the U.S. customer does not receive the W-8BEN from you, they may be required to withhold U.S. tax on the payments to you. This is because if you were a U.S. person or if you performed the services in the U.S., you would be subject to U.S. tax on the income. If you are not willing to certify these items on Form W-8BEN, U.S. tax rules may require the U.S. customer to withhold U.S. tax on the payments.
Note that under 4.a. above, if the services are performed outside the U.S., you don’t need to rely on a treaty to avoid U.S. tax. However, these rules can get complicated and the U.S. customer may be unsure if they need to withhold on the payments to you. Therefore, even if you don’t need to rely on the treaty to avoid U.S. tax, if you qualify for treaty benefits it makes sense to fill out the treaty portion of Form W-8BEN (Part II) (a sort of belt and suspenders approach).
The discussion above relates to income from services. Different rules apply to different categories of income (such as interest income, dividend income, royalty income, etc.).