The latest tax bill to emerge from the Iowa House would take $90 million from the state budget, robbing the ability of the state to adequately fund education, mental health, and public safety. And yet Iowans will see so little in return that most will not even be able to tell they got a tax cut.
By the time the House bill’s provisions are fully phased in (fiscal year 2021), the income tax cuts and sales tax modernization measures will result in about $90 million a year less revenue flowing to the state’s general fund than was projected before the federal tax bill was passed. After years of revenue shortfalls and budget cuts, the House bill would guarantee that those problems will continue.
Iowa is one of only three states where you can deduct your federal income tax before computing your income subject to Iowa tax. As a result, the federal tax cut bill will reduce that deduction and increase your Iowa taxable income and your Iowa income tax. But that effect is tiny. If the state were to do nothing at all, taxpayers would still keep 94 to 98 percent of the federal tax cut (see table below).
House plan offers little break for individuals, at great cost to services
Combined effects of Iowa House tax plan and federal tax changes
Source: Institute on Taxation and Economic Policy, Washington, D.C.
The House bill goes beyond what would have been needed to restore the small tax increases due to federal deductibility. It makes a number of changes in the income tax, including an increase in the state standard deduction. Overall, it reduces income taxes for those in the middle three-fifths of Iowa taxpayers by about $100 to $155 a year. The bill also modernizes the state sales tax, and those measures would bring in about $73 million a year from Iowa residents, and cost the middle income taxpayer $37 to $60 a year.
The net effect of all of this is an average tax cut of just $29 to $53 a year for those in the middle three-fifths of Iowa taxpayers, and smaller amounts for others. In other words, despite all the hoopla, the average taxpayer is going to hardly notice the effects of this bill — another three or four dollars a month.
Let’s just walk that through for a household with income of $53,000, which would put them right in the middle of all Iowa households. They can expect to pay $860 less in federal taxes, with federal deductibility taking back just $26 of that in state income taxes — they get to keep 97 percent. Then they get a $122 income tax cut and a $47 sales tax increase from the House tax bill. Net effect: $860 less in federal taxes, $49 less in state taxes.
While the tax savings are insignificant — three or four dollars a month — the House bill will take all that back and much more for many Iowa families. Tuition at public universities and community colleges will continue to rise because public funding will not be able to keep up with costs. School districts will be forced to enact more cuts as state funding fails to keep pace with inflation. Mental health initiatives will remain underfunded.
 Iowa Department of Revenue memo to Jeff Robinson, April 17, 2018. This is the net revenue loss compared to projected revenues before the federal tax bill was passed. The revenue loss compared to Iowa tax revenue including the windfall gain from federal deductibility ($178 million) would be $269 million in FY2021.
Peter Fisher is research director of the nonpartisan Iowa Policy Project. firstname.lastname@example.org