Iowa Income Tax Table Iowa Income Tax Brackets (Tax Year 2004)

Tax Year 2004 / Filed April 2005

Iowa - 2005 Single Tax Brackets
Tax Bracket Tax Rate
$0.00+ 0.36%
$1,242.00+ 0.72%
$2,484.00+ 2.43%
$4,968.00+ 4.5%
$11,178.00+ 6.12%
$18,630.00+ 6.48%
$24,840.00+ 6.8%
$37,260.00+ 7.92%
$55,890.00+ 8.98%
Iowa - 2005 Married Filing Jointly Tax Brackets

Brackets Not Available

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This page shows's archived Iowa tax brackets for tax year 2004. This means that these brackets applied to all income earned in 2004, and the tax return that uses these tax rates was due in April 2005.

Iowa's income tax brackets were last changed two years prior to 2005 for tax year 2003, and the tax rates have not been changed since at least 2001.

The latest available tax rates are for 2023, and the Iowa income tax brackets have been changed since 2004.

2005 Iowa Tax Deduction Amounts also maintains an archive of important Iowa income tax exemption amounts, including the Iowa Standard Deduction, the Iowa Personal Exemption, and the Iowa Dependent Deduction. The values of these deductions for tax year 2004 are as follows:

Standard Deduction (Single) Standard Deduction (MFJ) Personal Exemption Dependant Exemption
$1,580.00 $3,880.00 $40.00 * $40.00 *

* Note: In Iowa, personal / dependent exemptions are treated as income tax credits rather than tax deductions.

Iowa Income Tax Table 2005 Sources & Citations

Disclaimer: While we do our best to keep our historical Iowa income tax rates up to date and complete, we cannot be held liable for errors or omissions. Is info on this page missing or out-of-date? Please let us know so we can fix it!

Tax Data Sources:

  1. The Iowa tax brackets on this page sourced from the Iowa Department of Revenue for 2005. Please contact us if any of our Iowa tax data is incorrect or out of date.

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