This position is located in the Income Tax Unit (ITU) of the Payroll and Accounts Payable Section (APS), Division of Administration (DA), Department of Operational Support (DOS). The Department of Operational Support was established to provide operational advisory services to operating entities across the Secretariat, including other departments, Offices-Away-from-Headquarters, field missions, and regional commissions. The Payroll and Accounts Payable Section processes global payroll and payments, income tax claims and provides policy advice and operational guidance, testing and implementation of enhancements to the payroll module and income tax portal of the enterprise resource planning/United Nations (ERP/UN) tax system. The Accounting Assistant will report to the Chief of the Unit.