You can register online for any applicable tax. The Department's site uses an interactive wizard to help you determine your tax registration requirements.If you have any doubt about the requirement to withhold, go ahead and do it and use a Form 1042. You must make all deposits of taxes paid with respect to Form 1042-S (including taxes withheld under either chapter 3 or chapter 4) electronically. Permanent resident of the U.S.. • Substantial Presence Test –. Answer a series of questions designed to determine your specific business type. The company is usually the party responsible for withholding any required tax when it pays a foreign contractor for services performed in the United States.