IOWA Tax Forms and Instructions
Below are the relevant links for IA State Tax information.
Iowa State Mandate Tax preparers who have been approved by the IRS are automatically approved to submit Iowa returns electronically. There is no separate approval process for Iowa.



IOWA Tax Forms and Instructions Information
Online Credit Card Payments
  • Offical Payments
    Or call 1-800-2PAY-TAX (Offical payments charges a nominal fee for this service)(Use Jurisdiction Code 2000 for Individual and Jurisdiction Code 2006 for Business Taxes)
Mailing Addresses
  • Return Mailing Address:
    Iowa Income Tax Refund Processing
    Hoover State Office Building
    Des Moines IA 50319-0120

  • Return Mailing Address without Refund:
    Iowa Income Tax Document Processing
    PO Box 9187
    Des Moines IA 50306-9187

  • Estimates Mailing Address:
    Estimate Processing Iowa Department of Revenue
    PO Box 10466
    Des Moines, IA 50306-0466

  • Amended Return Mailing Address:
    Iowa Income Tax Refund Processing
    Hoover State Office Bldg
    Des Moines, IA 50319-0120

  • Extension Mailing Address:
    Iowa does not have an extension form to obtain additional time to file. To avoid the late-filing penalty, at least 90% of your total tax liability must Be paid by April 30; you will automatically have until October 31, to file your return. You may, however owe a 2210 penalty for failure to make estimate payments.





  • Electronic Filing:
    Iowa accepts Resident, Nonresident, and Part-year returns electronically. They can be transmitted with the Federal return or transmitted as a State only return.
Federal Tax Information