Iowa: state tax on early 401(k) and IRA withdrawals
From the tax year in which you are 55 on December 31, Iowa excludes 401(k), 403(b), 457(b) and IRA payouts in full; before that year they are taxed at 3.8 %.
Iowa: state tax on this withdrawal
$1,520
Iowa excludes retirement income from the year you are 55 on December 31; before that, payouts are taxed at the 2026 flat rate.
| Excluded by the state | $0 |
| Taxed by the state | $40,000 |
| Rate used | 3.80 % |
| State early-distribution tax | $0 |
Worked out by Radif Partners · How we calculate · rules read on the Iowa revenue department site, tax year 2026
Since tax year 2023 Iowa excludes retirement income for anyone who is 55 or older on December 31 of the tax year, and for disabled taxpayers and qualifying survivors. The list is broad: 401(k), 403(b) and 457(b) plans, traditional and Roth IRAs, SEP and SIMPLE IRAs, pensions, annuities, Keogh and ESOP payouts. Nonqualified deferred compensation and nonqualified annuities are left out. The guidance we read gives no dollar limit. Under 55, the same payouts are taxed at Iowa's flat 2026 rate of 3.8 %: $1,216 on $32,000 at 54. The year test matches the federal rule of 55, which also looks at the calendar year you turn 55, so leaving a job in that year can free the employer plan from the federal 10 % and from Iowa tax at the same time. An IRA at 55 escapes Iowa tax but still owes the federal 10 % until 59½, unless another exception applies.
December 31 decides the whole year
Iowa does not look at the date of each payment. Its test, in the words of the Department of Revenue, is being "55 years of age or older on December 31 of the tax year." Someone born on December 20, 1971 is 54 for almost all of 2026, yet every qualifying payout received in 2026, from January onward, falls under the exclusion. The year before, nothing does: payouts at 53 or 54 are taxed at 3.8 %, the single rate Iowa applies to all levels of income in 2026.
Iowa tax on a 401(k) payout at 54
Iowa: state tax on this withdrawal
$1,216
| Excluded by the state | $0 |
| Taxed by the state | $32,000 |
| Rate used | 3.80 % |
| State early-distribution tax | $0 |
Two calendar tests that line up
The federal rule of 55 works on the same calendar logic: no 10 % additional tax on the plan of an employer you leave during or after the year you reach 55. An Iowan who quits in that year can therefore draw that 401(k) or 403(b) with neither the federal penalty nor Iowa income tax. Only federal income tax remains.
| Situation in 2026 | Federal 10 % | Iowa tax |
|---|---|---|
| Age 54 on December 31, any 401(k) or IRA | yes, unless an exception applies | 3.8 % |
| 55 on December 31, 401(k) of the employer left that year | no (rule of 55) | excluded |
| 55 on December 31, traditional IRA | yes, until 59½ | excluded |
| Any age, disabled | exception may apply | excluded |
The third line is the trap. Iowa forgives the state tax on an IRA at 55, but the IRS does not forgive its penalty: on $32,000 the federal additional tax is still $3,200. Keeping old 401(k) money in an employer plan, or rolling it into the plan you will leave at 55, protects it from both.
Which accounts the exclusion reaches
The guidance names distributions from ERISA plans "including a 401(k), 403(b), and 457(b) plan", traditional and Roth IRAs, SEP and SIMPLE IRAs, defined benefit pensions, Keogh plans and ESOPs. It leaves out nonqualified deferred compensation under section 409A and nonqualified annuities bought outside a plan. The pages we read state no dollar ceiling on the exclusion since 2023; we have not found a cap, but we have not read a sentence that rules one out either.
Planning the years before 55
For someone who stops at 50, the four years before the Iowa threshold carry the state tax. Two habits help. Draw taxable brokerage money first in those years, since long-term gains in the low federal brackets can be cheap, and push pre-tax withdrawals into the year you turn 55. If a 72(t) series has to start earlier, its payments before that year are taxed at 3.8 %, then fall out of Iowa income once the age test is met. The retire at 55 page lays out the federal side of that timing.