Iowa
Iowa business compliance calendar
What Iowa asks of a company or a nonprofit registered or doing business there, beyond the federal filings every organization owes. Pick your entity type for the full calendar with dates.
LLC 2026LLC 2027C corporation 2026C corporation 2027S corporation 2026S corporation 2027partnership 2026partnership 2027sole proprietorship 2026sole proprietorship 2027nonprofit 2026nonprofit 2027
Registration and franchise filings
| Entity | Filing | Fee | If missed |
|---|---|---|---|
| Corporations | Biennial report, by April 1 of even numbered years, with the Iowa Secretary of State | $60 ($45 online) | Administrative dissolution after continued failure |
| LLCs | Biennial report, by April 1 of odd numbered years, with the Iowa Secretary of State | $60 ($45 online) | Administrative dissolution after continued failure |
| Partnerships | Biennial report, by April 1 of odd numbered years, with the Iowa Secretary of State | $60 ($45 online) | Administrative dissolution after continued failure |
| Nonprofits | Biennial report, by April 1 of odd numbered years, with the Iowa Secretary of State | No fee | Administrative dissolution after continued failure |
Taxes and employers
- Corporate income tax
- Yes. C corporations file a Iowa return by the 15th day of the fourth month after the year ends, with the Iowa Department of Revenue.
- Personal income tax
- Yes. S corporations and partnerships file a Iowa information return, and employers withhold state income tax.
- Employers
- Register for unemployment insurance and file wage reports every quarter. Reconcile income tax withholding after year end.
- Sources
- Iowa Secretary of State, Iowa Department of Revenue
All Iowa rules in the pack
- Iowa biennial reportby April 1 of even numbered years
- Iowa biennial reportby April 1 of odd numbered years
- Iowa biennial reportby April 1 of odd numbered years
- Iowa nonprofit biennial reportby April 1 of odd numbered years
- Iowa charitable solicitation registration: not requiredwith no fixed date
- Iowa corporate income tax returnby the last day of the 4th month after the fiscal year ends (the last day of April for a calendar year)
- Iowa corporate estimated tax paymenton the 15th day of the 4th, 6th, 9th, 12th months of the fiscal year (April 15, June 15, September 15, December 15 for a calendar year)
- Iowa pass through entity returnby the last day of the 4th month after the fiscal year ends (the last day of April for a calendar year)
- Iowa personal income tax return with business incomeby April 30 each year
- Iowa unemployment insurance wage reportby the last day of the 1st month after each quarter
- Iowa annual withholding reconciliationby January 31 each year
- Iowa sales tax returnby the 20th day of the 1st month after each quarter