Topics:

Business Income Tax Guidance
Corporation Income Tax

Certain taxpayers are required to file their annual Iowa tax returns in an electronic format. This electronic filing requirement is phased in over several years for the affected tax types. The chart below shows the tax years for which the requirement goes into effect and the required method for filing an electronic return by tax type.

Tax/Form TypeRequired ForRequired Filing Method
Corporate Income (IA 1120)Tax years ending on or after
December 31, 2022
Modernized eFile (MeF)
S Corp (IA 1120S)Tax years ending on or after
December 31, 2022
Modernized eFile (MeF)
Partnership (IA 1065)Tax years ending on or after
December 31, 2022
Modernized eFile (MeF)
Franchise (IA 1120F)Tax years ending on or after
December 31, 2022
Modernized eFile (MeF)
Fiduciary (IA 1041)Tax years ending on or after
December 31, 2023
Modernized eFile (MeF)
Moneys and CreditsTax years ending on or after
December 31, 2024
GovConnectIowa 
(available in 2025)
Composite (IA PTE-C)

Tax years ending on or after 
December 31, 2022 
(for IA 1120S and IA 1065 filers)

Tax years ending on or after 
December 31, 2023 
(for IA 1041 filers)

Modernized eFile (MeF)

Sales and Use Tax

The information on this page does not impact sales and use tax filing or payment requirements. View Sales and Use Tax Permit, Return Filing, and Payment Changes for information about other recent changes to filing requirements.