Understand tax requirements when hiring a foreign contractor. Our guide provides essential insights for seamless compliance with international tax laws.You'll need to solicit applicants, review their applications, and make an offer with an independent contractor agreement. APPLICATION: Please complete and submit two copies of form BCA 13.15 to apply for an Authority to Transact Business in Illinois. This article will outline four steps for hiring international contractors overseas and how Wise can help cut costs on global payments. Discover essential steps for safely paying international contractors. Our guide simplifies compliance, currency, payment methods, contracts, and more. Please fill out the following form completely. When a US company hires independent contractors who are US residents, it should have contractors complete Form W9.