Protect Iowa Taxpayers

Iowans across the spectrum agree these constitutional amendments are practical, common-sense protections.

1. Two-Thirds Legislative Majority to Increase Taxes

A two-thirds majority requirement would force legislators to justify why they want to raise taxes and make it more difficult to implement new taxes, such as a wealth tax. Currently, 16 states have some form of supermajority requirement for tax increases. Seven states have enshrined it in their constitutions. 

A whopping 69.6% of Iowans support the supermajority amendment. This is consistent across party lines and demonstrates strong bipartisan support for fiscal restraint.


Would you vote “yes” or “no” on an amendment to the Iowa state constitution that would require two-thirds of the state legislature to vote “yes” on any tax increase, effectively making it more difficult for the legislature to raise taxes?

2. Flat Tax Amendment

Starting in 2025, Iowa will have a 3.8% flat tax. If this amendment passes, it would prevent any future legislature from reinstating a progressive, multi-rate income tax system, or even introducing a wealth tax. A flat tax is more equitable and beneficial for all taxpayers. 

While 44% of voters currently support a constitutional amendment to “implement a single, uniform income tax rate for individuals, commonly referred to as a ‘flat tax,’ ” many remain undecided. 


Would you vote “yes” or “no” on an amendment to the Iowa state constitution that would guarantee a single, uniform income tax rate for individuals, commonly referred to as a flat tax?

Voter uncertainty could stem from unfamiliarity with the potential impacts of the policy, as Iowa’s flat tax is still relatively new and not yet fully in effect.

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