Reference guide for withholding on nonresidents. Withholding on payments to nonresidents and foreign nonresidents (withholding agent information).If you have any doubt about the requirement to withhold, go ahead and do it and use a Form 1042. They need the contractor's tax ID number in their home country. You can learn more about both forms at the links below: About Form W-8 BEN. Do you need a 1099 for international contractors? Your guide for understanding how to hire and pay independent contractors around the world. At a minimum, information must be in the highlighted fields, but other boxes must be completed if the nature of the payment requires it. Call 408-866-1810 to speak with San Jose tax attorney John D. Teter. All persons or companies conducting business in San José must pay the business tax, whether or not they have offices located in San José.