The equivalent form for overseas contractors is W8BEN. An independent contractor agreement is a contract between a freelancer and a client outlining work specifics.Enlisting the help of independent contractors to complete specific projects is becoming more and more common for business owners in Phoenix. If your business works with contractors, you need to know how to create an independent contractor agreement. An administrative services agreement is a type of professional services contract in which a company hires a third party to provide administrative services. Step 2: Filling out the Independent Contractor Agreement. Discover the essential steps and legal intricacies involved in hiring independent contractors from overseas for US companies.