Iowa Department of Revenue
11/03/2025 | Press release | Distributed by Public on 11/03/2025 08:22
IDR Issues New Income Withholding Tax Tables for 2026
Des Moines, Iowa - The Iowa Department of Revenue is issuing updated income tax withholding formulas and tables for 2026. The Department updates withholding formulas and tables when necessary to account for inflation and for changes in individual income tax liability resulting from changes in tax law.
New for 2026
The Iowa withholding formula and the IA W-4 have been revised for tax year 2026 to accommodate changes to individual income tax required under the federal law known as the One Big Beautiful Bill Act, which was enacted on July 4, 2025.
The Iowa Code is automatically conformed to the Internal Revenue Code of the United States for tax purposes. This means that, with certain important exceptions, Iowa law emulates the tax law changes made at the federal level. The federal tax law changes enacted in 2025 generally decreased individual income tax liability beginning in 2026. The 2026 Iowa withholding tables accommodate this reduction. Employers can view the Iowa 2026 withholding formulas and tables online.
Employers can view the Iowa 2026 withholding formulas and tables online.
Questions
Employers can contact the Department at 515-281-3114 or 800-367-3388.
Media Contact
John Fuller, Public Information Officer
Email Address
Phone(s)
Primary
(515) 318-8864
Iowa Department of Revenue published this content on November 03, 2025, and is solely responsible for the information contained herein. Distributed via Public Technologies (PUBT), unedited and unaltered, on November 03, 2025 at 14:23 UTC. If you believe the information included in the content is inaccurate or outdated and requires editing or removal, please contact us at [email protected]