If you are approaching retirement in Iowa and still planning around the assumption that the state will tax your pension and IRA withdrawals, your plan may be out of date.
Iowa does not tax most retirement income for residents who qualify for the state’s retirement income exclusion. For many Iowa residents age 55 and older, that includes pensions, 401(k) and IRA distributions, IPERS, Roth conversions, and certain annuity income. Social Security is also exempt from Iowa income tax under a separate provision. For tax year 2025, Iowa’s flat income tax rate is 3.8% on taxable income that remains subject to tax.
This post explains what is and is not covered, who qualifies, and what it means for your retirement plan.
Who Qualifies
To exclude retirement income from Iowa taxable income, you must meet one of the following:
- You are 55 or older on December 31 of the tax year
- You are disabled as defined under Iowa law
- You are a surviving spouse of someone who qualified for the exclusion based on age or disability
- You are a surviving spouse who receives pension income from a deceased spouse who was employed in a protection occupation — sheriff, deputy sheriff, firefighter, or police officer — regardless of whether the deceased spouse met the age or disability threshold
- You are a qualifying survivor with an insurable interest — specifically a son, daughter, mother, or father of the original annuitant or pensioner
One nuance for married couples: the exclusion applies separately to each spouse. If one spouse is 55 or older and the other is not, only the qualifying spouse’s retirement income is exempt. The younger spouse’s retirement income remains taxable until they also reach the age threshold.
What Is Exempt from Iowa Tax
For qualifying Iowa residents, retirement income is excluded from Iowa taxable income to the extent it is included in federal taxable income.
Social Security benefits are exempt for all Iowa residents regardless of age. This exemption predates the broader retirement income reform and has been in place for many years.
For those who otherwise qualify for the retirement income exclusion, covered income generally includes IPERS pension income, traditional IRA withdrawals including required minimum distributions, 401(k) and 403(b) distributions, SIMPLE IRAs, SEP-IRAs, Roth conversion income, and pension payments from public and private employers. Military retirement pay is separately exempt under Iowa law and is not tied to the age 55 threshold.
What Is Not Exempt
The exemption does not cover everything, and this is where some retirees get caught off guard.
Wages and earned income are still taxable. If you work part time in retirement, consult, or run a small business, that income remains subject to Iowa income tax. For tax year 2025, that means a flat 3.8% rate. Interest, dividends, and capital gains from taxable brokerage accounts are generally still taxable, as is standard rental income.
Two separate categories do not qualify for the retirement income exclusion. The first is nonqualified annuities — commercial annuities not held inside a qualified retirement plan. These typically show a distribution code of D in box 7 of your Form 1099-R. The second is nonqualified deferred compensation plans governed by Internal Revenue Code section 409A — executive deferred comp arrangements that are a distinct category and should not be confused with nonqualified annuities.
The practical takeaway: many Iowa retirees whose income comes primarily from Social Security, IPERS, and IRA or 401(k) withdrawals will have little to no Iowa state income tax liability. Retirees who also have taxable investment account income, part-time wages, or certain annuity payments will still owe tax on those portions.
The Roth Conversion Angle
Iowa’s retirement income exclusion has an important planning implication for Roth conversions.
When you convert traditional IRA or 401(k) funds to a Roth IRA, the conversion is generally taxable at the federal level. For qualifying Iowa taxpayers, that conversion amount is generally not subject to Iowa income tax. The federal tax still applies, but Iowa does not add a second layer of tax to the conversion.
The years between retiring and starting Social Security, or between retiring and reaching required minimum distribution age, can be a valuable window for Roth conversions at lower federal tax rates without an added Iowa state tax cost. Whether that window makes sense for you depends on your federal bracket, future income, and how you plan to use the converted funds.
Iowa’s Flat Tax
For tax year 2025, Iowa taxes taxable individual income at a flat 3.8% rate.
That rate applies to wages, self-employment income, investment income, and retirement income that does not qualify for one of Iowa’s exemptions or exclusions.
For qualifying retirees whose income comes primarily from Social Security, IPERS, pensions, and qualifying retirement account distributions, Iowa state tax liability often drops to near zero or zero entirely. The flat rate only applies to whatever taxable income remains.
A Note on Withholding
Plan administrators are not required to withhold Iowa income tax on qualifying retirement distributions paid to qualifying recipients.
If you are eligible for the exclusion and Iowa tax is still being withheld from your pension or IRA distributions, you may be able to ask your plan administrator to stop withholding by submitting an updated IA W-4P claiming exemption.
If Iowa tax was withheld and you qualified for the exclusion, that amount may be claimed on your Iowa income tax return and may be refundable, depending on your full tax picture.
Quick Summary
Exempt from Iowa income tax for qualifying taxpayers: Social Security benefits, IPERS and other qualifying pensions, traditional IRA withdrawals, many 401(k) and 403(b) distributions, SIMPLE IRAs, SEP-IRAs, Roth conversion income, and military retirement pay.
Still generally taxable: wages and earned income, interest and dividends from taxable accounts, capital gains, rental income, nonqualified annuities, and nonqualified deferred compensation.
Iowa also repealed its inheritance tax for deaths occurring on or after January 1, 2025, which is a separate but related planning consideration for Iowa families.
How This Fits Into Your Retirement Plan
The rule is straightforward in broad terms, but the planning value is in the details.
The real opportunity is in how Iowa’s rules interact with Roth conversion timing, Medicare premium thresholds, Social Security claiming strategy, and the mix between retirement accounts and taxable investments.
If you are within five to ten years of retirement in Iowa and have not reviewed how these rules affect your specific plan, it is worth a focused look. The years between retirement and Social Security or required minimum distributions are often one of the most tax-flexible periods of retirement, but only if they are used intentionally.
At Custom Fit Financial, we specialize in advice only fee only retirement planning for individuals and couples age 55 and over. We offer hourly and project based financial planning with no sales pressure or product commissions. Whether you’re in Cedar Rapids, Iowa City, or working with us virtually across the United States, we help you make confident informed decisions about your retirement.
Ready to plan your retirement with confidence? Schedule your free intro call today.
This post is for informational purposes only and does not constitute tax advice. Iowa tax law is subject to change. Individual circumstances vary. Consult a qualified tax professional before making decisions based on this information. Information current as of the 2026 tax year.
