In Arizona, local businesses must report any new employee they hire within 20 days. This involves filing your Articles of Organization with the Arizona Corporation Commission.All US employers must properly complete Form I9 for every individual they hire for employment in the United States. This includes citizens and noncitizens. A: To begin, report any new employees you have hired within the last 180 days. Discover five essential best practices for onboarding new hires that will make your life easier and help you retain your employees. All US employers must properly complete Form I9 for every individual they hire for employment in the United States. This includes citizens and noncitizens. Try PI Inspire Free. Complete your Federal W-4 and Arizona State A-4 forms in UAccess to set up the amount of tax to withhold from your paycheck.