Iowa

General Instructions

The Iowa Department of Revenue and Finance does not require you to file a request for additional time. Iowa grants an automatic extension until October 31, 2008 to file your 2007 tax return. However, to avoid penalties and interest, you must pay 90% of your current year tax liability by May 1, 2008.

Penalty and Interest Charges on Tax Owed:

Those who do not pay at least 90% of the amount due on or before May 1, 2008 will be charged interest on the unpaid balance and a late payment penalty. Those who do not file for an extension, or file late are also charged a substantial late filing penalty.

• Late Filing Penalty: A penalty of 10% will be added to the tax due for failure to timely file a return if the return is not mailed by the due date and at least 90% of the correct tax is not paid by the due date.
• Late Payment Penalty: A penalty of 5% will be added to the tax due if at least 90% of the correct tax is not paid by the due date. Where the failure to file penalty and the failure to pay penalty are both applicable, only the failure to file penalty will apply.
• Interest: Taxes payable during calendar year 2008 are subject to interest at a rate of 0.8% per month, which accrues on unpaid tax from the due date of the deposit or return. Any fraction of a month is considered a whole month for purposes of computing interest.

If You Owe...

If you owe additional Iowa Income Taxes you may pay your estimated balance due in the following ways:

1. Prepare an Iowa Payment Voucher IA1040V (click here to download PDF)
2. Enclose a check or money order in the amount of the estimated tax due.
3. Mail to:
   Iowa Department of Revenue and Fiance
   Iowa Income Tax - Document Processing
   PO Box 9187
   Des Moines, Iowa 50306-9187

Iowa accepts payment by credit card through Official Payments Corporation. Making your payment in this way automatically qualifies you for an extension of time to file your tax return until October 15, 2008. You will not need to file any other forms at this time. You can do this either on the web or by telephone.

Official Payments Corporation will accept Discover/NOVUS, MasterCard, Visa or American Express card to pay your personal income taxes. There is a convenience fee for this service equal to 2.5% of the tax amount being charged. The minimum fee is $1.00.

To make your payment and receive an automatic extension of time to file, have the following information ready:

• The amount you are paying in dollars and cents
• Your social security number
• Your spouse's social security number (if applicable)
• The first four letters of your last name
• The first four letters of your spouse's last name, if different from yours
• Tax year 2007
• Your home telephone number (including area code)
• Credit card number
• Credit card expiration date (MM/YYYY)
• ZIP Code for the address where your credit card bills are sent

Make your payment at the Official Payments Corp. web site.

Use your touch-tone phone to call toll-free (800) 272-9829. At the end of your call you will be given a confirmation number. Write down and save this confirmation number for your records

If You Do Not Owe...

If you are expecting a refund from Iowa there is nothing to be filed, an extension is automatically granted until October 31, 2008 for the filing of your 2007 tax return.

Download Extension Form(s)

Iowa	Iowa Payment Voucher IA1040V