Reference guide for withholding on nonresidents. Withholding on payments to nonresidents and foreign nonresidents (withholding agent information).The NRA must complete online tax compliance information (Glacier) in order to determine tax withholding. Discover essential steps for safely paying international contractors. Our guide simplifies compliance, currency, payment methods, contracts, and more. To elaborate, you don't usually have to withhold or pay taxes on compensation to an independent contractor, but the opposite is true for an employee. Check if Gusto can help you pay your contractors who live outside the U.S. Learn how to add them, set up regular payments, and pay them. You may need to pay selfemployment tax if you're a freelancer, an independent contractor or a smallbusiness owner.