Why is there a line item on my Earnings Report or tax document for withholding?

In certain circumstances, we are required to withhold a portion of your gross income on behalf of the IRS. The most common reasons we might withhold are 1) you have not furnished a W-9, or the W-9 you provided is incomplete. 2) your primary residence is outside of the United States, and you have not provided us with form W-8ECI.