Iowa Tax Filing

For State of Iowa tax purposes, international students and scholars who live and study in Iowa are generally considered residents of Iowa. If you had income from both Iowa and another U.S. State during 2025, you must complete Form IA1040 as well as Form IA126.  State of Iowa tax returns are based on information in the federal tax form.  You'll need to completed your U.S. federal tax return before completing your Iowa tax return.

The filing deadline for 2025 Iowa tax returns is April 30, 2026.

For more detailed information on State of Iowa tax filing, go to Iowa Tax Information.

Other State Tax Filing

All but nine (Alaska, Florida, Nevada, New Hampshire, South Dakota, Tennessee, Texas, Washington, and Wyoming) of the 50 U.S. States have state income tax return requirements.

If you worked in a U.S. State other than Iowa during 2025 you must file the appropriate tax form for the particular state in which you worked. Select the "Resources" menu on the Federation of Tax Administrators website to access tax forms for every U.S. state.

If you worked in more than one U.S. State during 2025, special part-year resident rules apply for each State that has an income tax. Carefully read and follow the instructions for part-year residents on the tax forms for both states.

Disclaimer: The resources on this page were prepared by the International Students and Scholars Office (ISSO) as general guidelines to assist you in preparing your Iowa and federal government income tax returns. The information here is not to be construed as professional tax advice and does not apply to every situation. If your tax circumstances are more complicated (for example, if you had income from both Iowa and another U.S. State) you will want to obtain professional tax advice from resources in the community.