State of Iowa Personal Income Tax Extensions

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General Instructions

Iowa personal income tax returns are due by April 18. If you cannot file by that date, you can get a state tax extension.

An Iowa personal extension is automatic, which means there are is no application to submit. However, at least 90% of your Iowa tax liability must be paid by the original deadline (April 30) to avoid penalties. As long as you meet that requirement, you will automatically receive a 6-month Iowa tax extension, which moves your filing deadline to the last day of October.

If you owe tax, you can make a state tax payment using Iowa Form IA 1040V (Individual Income Tax Payment Voucher). Tax payments can also be made online through Iowa’s “eFile & Pay” system:

For more information, please visit the Iowa Department of Revenue website:

Iowa State Income Tax Payment Forms

Form IA 1040V (Individual Income Tax Payment Voucher)

Mail Form IA 1040V with payment to the following address:

Iowa Department of Revenue
P.O. Box 9187
Des Moines, IA 50306-9187