Nonprofit Tax Deadlines in Iowa
Federal and state filing dates, extensions, and estimate schedules for 2026.
Iowa filing deadline
Nonprofit annual return generally due the 15th day of the 5th month.
Due: May 15, 2026
Extension: Nov 15, 2026
Form: State nonprofit return
Estimated payments
No state estimated payment schedule listed.
Due: N/A
FAQ
Does Iowa require Nonprofit estimated payments?
Estimated payments are not typically required at the entity level, but confirm with Iowa Department of Revenue.
Where can I file Iowa Nonprofit taxes?
Use Iowa Department of Revenue resources at https://tax.iowa.gov for forms and filing instructions.