Outofstate contractors and subcontractors register to file and pay use tax via MassTaxConnect. Visit Business Use Tax for more information.If you are hiring a foreign contractor, you will need to have them complete IRS Form W8BEN. In general, you aren't obliged to withhold taxes from independent contractors. However, you may still need to report taxes. They need the contractor's tax ID number in their home country. You can learn more about both forms at the links below: About Form W-8 BEN. This guide contains everything you need to know about paying independent contractors in other countries, compliantly and at scale. Paying foreign contractors can be a hassle. In this article, you'll understand how to set up a compliant, easy process to pay international contractors.