The most common way for US companies to pay foreign contractors is through wire transfer. Discover essential steps for safely paying international contractors.Our guide simplifies compliance, currency, payment methods, contracts, and more. Do you need a 1099 for international contractors? Your guide for understanding how to hire and pay independent contractors around the world. QuickBooks only supports U.S. based accounts. Thus, your contractor must have a US bank account to meet the requirements. Yes, it is legal under US tax law. US tax law is concerned with collecting tax.