A foreign entity is transacting business in Texas if it has an office or an employee in Texas or is otherwise pursuing one of its purposes in Texas. When a US company hires independent contractors who are US residents, it should have contractors complete Form W9.Understand tax requirements when hiring a foreign contractor. Our guide provides essential insights for seamless compliance with international tax laws. In transactions with foreign persons, the buyer must withhold a certain percent of the "amount realized" from the "transfer" (the "sale") of the property. Create an international contractor agreement that defines the fees, payment terms, and scope of work. Onboard the contractor and begin work. 1. Act Containing Statutory Carve-Out for Real Estate Professionals State. Workers Compensation. Alabama. Alaska. Arizona. Arkansas. Colorado. The lease must be equivalent to what an independent business person could have obtained in the open market.