Iowa’s Amendment 1 would require two-thirds votes to raise income taxes
Iowa voters on November 3, 2026, will decide whether to amend the state constitution to require a two-thirds majority in both the Iowa House and Senate to increase individual or corporate income tax rates, a move supported by the Republican Party of Iowa and opposed by the Iowa Democratic Party.
Iowa voters on November 3, 2026, will decide whether to amend the state constitution to require a two-thirds majority in both the Iowa House and Senate to increase individual or corporate income tax rates, a move supported by the Republican Party of Iowa and opposed by the Iowa Democratic Party. The amendment would not change current tax rates but would raise the legislative threshold from a simple majority to 67 votes in the House and 34 votes in the Senate for such increases.
Key numbers
| Stat | Figure | Date | Source |
|---|---|---|---|
| Legislative votes needed for income tax increases | 67 in the 100-member House; 34 in the 50-member Senate | 2026-11-03 | KTIV |
| Current legislative votes needed for income tax increases | 51 in the 100-member House; 26 in the 50-member Senate | 2026-11-03 | KTIV |
| State fine for nursing home failure to perform CPR | $10,000 | 2026-11-03 | Storm Lake Radio |
What happened
Iowa voters on November 3, 2026, cast ballots on Amendment 1, a proposed constitutional amendment that would require a two-thirds majority in both the Iowa House and Senate to increase individual or corporate income tax rates. The amendment was approved by lawmakers in 2024 and 2026 and sent to voters for a final decision. The proposal does not raise or lower taxes but changes the legislative threshold for tax increases, requiring broader consensus before such measures can pass.Who is affected
The amendment primarily affects Iowa lawmakers and taxpayers. If approved, it would require 67 votes in the 100-member House and 34 votes in the 50-member Senate to increase income tax rates, making it harder to raise taxes without broad legislative support. Supporters argue this would protect taxpayers and encourage lawmakers to review spending, while opponents claim it would restrict lawmakers' ability to respond to budget needs. The amendment would raise the legislative threshold for income tax increases from a simple majority (51 in the House, 26 in the Senate) to a two-thirds majority (67 in the House, 34 in the Senate). Additionally, a $10,000 state fine was proposed for a nursing home in Laurens after failing to perform CPR on a resident, and voters in Sgt. Bluff-Luton passed a $38 million bond measure for a new primary school.What to do next
Voters who have not yet cast their ballots can still participate in Iowa’s election on November 3, 2026. The results of Amendment 1 will determine whether the two-thirds requirement is added to the Iowa Constitution, impacting future tax legislation. Voters should review the ballot question and consider the implications of the amendment on tax policy and legislative decision-making.What we know and don’t know
We know that Amendment 1 would require a two-thirds majority in both chambers of the Iowa Legislature to increase income tax rates, and it would not apply to lowering tax rates or local taxes. However, we do not know the final outcome of the vote until results are certified. Additionally, the amendment does not specify how lawmakers would address budget needs if tax increases are restricted, leaving some uncertainty about future fiscal policy.Timeline
- 2024: Iowa Legislature approves Amendment 1, sending it to voters for a decision.
- 2026-11-03: Iowa voters decide on Amendment 1 during the general election.
- 2026-11-03: Results of Amendment 1 are announced, determining whether the two-thirds requirement is added to the Iowa Constitution.
Why it matters
Amendment 1 matters because it would significantly alter how Iowa lawmakers can raise income taxes. Supporters believe it would protect taxpayers and encourage fiscal responsibility, while opponents argue it could limit lawmakers' ability to address budget needs. The outcome of this vote could impact Iowa's economic policies and fiscal stability for years to come.Frequently asked questions
What does Amendment 1 propose?
Amendment 1 proposes to amend the Iowa Constitution to require a two-thirds majority in both the Iowa House and Senate to increase individual or corporate income tax rates. This means that 67 votes in the 100-member House and 34 votes in the 50-member Senate would be needed to raise such taxes, compared to the current simple majority requirement.
Who supports and opposes Amendment 1?
The Republican Party of Iowa supports Amendment 1, arguing that it would protect taxpayers and encourage broader legislative consensus before raising income tax rates. The Iowa Democratic Party opposes the amendment, claiming it would restrict lawmakers' ability to respond to changing budget needs. Organizations like the Iowans for Tax Relief Foundation support the amendment, while groups such as Common Good Iowa and the League of Women Voters of Iowa oppose it.
What would happen if Amendment 1 passes?
If Amendment 1 passes, it would be added to the Iowa Constitution, requiring a two-thirds majority in both chambers of the Legislature to increase individual or corporate income tax rates. This would make it significantly harder to raise income taxes without broad legislative support, potentially impacting future tax policy and fiscal decisions.
What would happen if Amendment 1 fails?
If Amendment 1 fails, the current legislative process would remain in place, meaning that a simple majority (51 in the House, 26 in the Senate) would still be required to increase income tax rates. Lawmakers would retain their current ability to respond to budget needs through tax legislation.
Does Amendment 1 apply to all taxes?
No, Amendment 1 would not apply to all taxes. It specifically targets increases in individual or corporate income tax rates, as well as other tax rates based on income or legal and special reserves. It would not apply to lowering income tax rates, sales tax rate increases, property tax rate increases, or taxes imposed at the local government level.
What is the deadline for lawsuits challenging Amendment 1?
If Amendment 1 passes, there is a one-year deadline for lawsuits challenging whether a bill was properly enacted under the new two-thirds requirement.
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Sources
- desmoinesregister.com — desmoinesregister.com, 2026-11-04
- What would Iowa’s Amendment 1 change? A guide to the Income Tax Ballot Question — ktiv.com, 2026-11-02
- What Would Iowa’s Amendment 1 Change? A Guide to the Ballot Question — stormlakeradio.com, 2026-11-03
- bleedingheartland.com — bleedingheartland.com, 2026-11-01