UPB Foreign National Service Center released a new tool to assist those making payments to foreign nationals: https://hrnet.uihr.uillinois.edu/uhr/HRSystems/OnlineCourses/index.cfm?courseID=28.
Use this tool to help identify the type of payment you are trying to make, as well as the method of submission.
Watch this video for an introduction:
University Payroll and Benefits - Office of Business and Financial Services
