RETURNS/PAYMENTS MUST BE MAILED TO...

Are you receiving a refund or filing a return with no refund and no tax due?
Mail your return to:

Iowa Income Tax - Refund Processing
Hoover State Office Building
Des Moines IA 50319-0120

Are you paying additional tax? You can pay by credit card or online, or...

Mail your return and payment to:

Iowa Income Tax - Document Processing
PO Box 9187
Des Moines IA 50306-9187

Paper-filed returns take up to 12 weeks to process.
If the return contains errors, it may take an additional six months.