How odd that a new proposal to make Iowa’s tax system more regressive and unfair comes out just when new evidence shows it already is unfair. HF3 would make the Iowa income tax rate flat where it needs to reflect ability to pay. Since higher income people pay more in income tax, and because they are expected to pay a greater percentage as their income rises, moving to a flat or flatter income tax is a reward to them. It does not help low- and moderate-income people.
As shown in the recent “Who Pays?” report by the Institute on Taxation and Economic Policy (ITEP), the poorest pay the highest portion of their income in taxes. (See graph.) The sales tax is much steeper as a share of income from low-income Iowans than it is from high-income Iowans, and the property tax is marginally more expensive to low-income people as a share of income than it is to those with high incomes. The income tax is the only progressive element of Iowa’s state and local tax system.
The problem with Iowa’s tax system is not that it’s too progressive. In fact, it is regressive — taking a larger share of the income of people at low incomes and middle incomes than of people at the top. HF3 would compound this.
Posted by David Osterberg, Executive Director