K-1 Partnership and S Corporations Information on CD

An Iowa partnership or S Corporation is not required to submit K-1 information on a CD or electronically using our Secure File Exchange (SFE) program. If you choose to submit K-1 information using either of these methods, the information must be in the ASCII format in a specific layout. You can access the approved layout for partnerships or S Corporations and formatting instructions. Any layout other than the posted approved format, must have Department approval before submission.

Either option still requires an IA1065 or IA1120S to be filed. Although a copy of the federal return should be attached, copies of the federal K1 will not be necessary. 

On the Iowa return:

  1. Sign the return at the bottom of the page.
  2. Mail to:

Compliance Services
Tax Management Division
Iowa Department of Revenue
PO Box 10456
Des Moines, IA  50306-0456

  • If you would like to use this option, email IDRTMDBusinessTax@iowa.gov for information and the application. If you use this method, print off a copy of the confirmation that your file was uploaded and attach the copy to the return. In Part 1 of the return, write “See attached file confirmation”.

  • Include the CD with the return and in Part I of the return write “See attached CD”. If the CD is not in the Department's approved format, the return will be considered incomplete until a correct CD or complete paper return is filed.

    The Department allows electronic filing of Iowa partnerships returns through the modernized e-File project with the Internal Revenue Service. For more information about this, see our e-File page for income taxes.   

    If you have questions, email IDRTMDBusinessTax@iowa.gov.