Employee's Withholding Certificate. Complete Form W-4 so that your employer can withhold the correct federal income tax from your pay.DETR is the state's lead workforce development agency. It consists of divisions that offer workforce related services, job placement and training. The Employment Security Division (ESD) is a combination of Unemployment Insurance, Workforce Development, and the Commission on Postsecondary Education. Use Form I9 to verify the identity and employment authorization of individuals hired for employment in the United States. Information about Form W4, Employee's Withholding Certificate, including recent updates, related forms and instructions on how to file. Please take a few minutes to fill out a brief survey, available in English and Spanish. You may need to fill out a W-4 state form on top of a W-4 federal form. As a Tax Associate with Intuit you'll work directly with clients and apply defined practices, procedures, and company policies to prepare their returns.