Are you an out of state business with no Washington location and have employees or representatives working in Washington? This page includes forms, fees, and instructions for all domestic business entities, foreign and domestic Registered Agents, and Washington Trademarks.This guide will inform you of various legal requirements and direct you to additional resources. To find out if you qualify, write a letter of request to the Illinois Department of Revenue, Sales. Complete Form W-4 so that your employer can withhold the correct federal income tax from your pay. Form 17 Seller Disclosures and the most commonly asked questions. We also go over the changes that took effect today. You may complete this form at home and mail or bring it to a Department of Human Services (DHS) office. Forms Search for a government form. The official athletics website for the University of Washington Huskies.