As an applicant who needs funding, one of the most important things that you can do is to complete the Application for Graduate Awards and Appointments . By filling out this form, you alert the application committee to the fact that you would like to be paid while studying. Funding opportunities include teaching and research assistantships through various departments, as well as the elusive fellowship. It must be noted that teaching assistantships are the most common form of funding, and doctoral students usually teach beginning or intermediate language courses. More information about funding can be found on the Financial Assistance page  of the University of Iowa Graduate College Admissions site.
Teaching assistantships are available through FLARE. These assistantships usually involve teaching elementary or intermediate language courses. FLARE also has a limited number of research assistantships. In general, assistantship holders are classified as residents for fee purposes for the terms during which their appointments are held and any adjacent summer sessions in which they are enrolled. See the Financial Assistance section of the University of Iowa Graduate Admissions web page for additional information about assistantships and fellowships.