We are a PA business with one employee who lives and work in NY. What payroll taxes do I need to withhold from his pay?
All NY taxes.
NY welcomes you as a NY business as well...
NY state withholding, NY SUI, if the employee is a resident of NYC or Yonkers, they have taxes. NY has a disability tax, a family leave tax. These just the ones which come to mind. You need to research the NY employer websites. Hope this helps.