Iowa 529 tax deduction in 2026
Iowa ties the deduction to who owns the account. Change the owner and the amount a family can subtract changes with it.
Iowa tax saved on this contribution
$228
3.8 % of what you put in comes back on your 2026 return.
| Subtracted from state income | $6,000 |
| Your state marginal rate | 3.80 % |
| Cap that applies this year | $12,200 |
| Back per $1,000 contributed | $38 |
Iowa: Account owners only may deduct up to $6,100 (2026, CPI-indexed from the statutory $5,500) per beneficiary account they own; married owners each with their own account for the same child can deduct $12,200 for that child. Contributions by the April 30 filing deadline may be elected for the prior year; non-owner contributors get no deduction. Read on 2026-10-19. No federal deduction exists for 529 contributions.
| Taxable income | Marginal rate | Tax saved |
|---|---|---|
| $50,000 | 3.80 % | $228 |
| $100,000 | 3.80 % | $228 |
| $200,000 | 3.80 % | $228 |
| $400,000 | 3.80 % | $228 |
Worked out by Radif Partners · How we calculate · Iowa rule read on October 19, 2026, brackets of tax year 2026 · not tax advice
Iowa lets an account owner subtract up to $6,100 in 2026 for each beneficiary account they own in ISave 529 or IAdvisor 529, a figure the Iowa Treasurer indexes to inflation from a statutory base. Only owners deduct: a grandparent who sends money to an account owned by a parent gets nothing on an Iowa return. On a joint return the room reaches $12,200 for one child only when each spouse owns a separate account for that child; with a single owner it stays at $6,100. At Iowa's flat 3.8 % rate for 2026, the larger figure saves $464 and the smaller $232. Deposits made by the April 30 filing deadline can be elected for the prior year. K-12 money stays free of Iowa add-back only for tuition at an Iowa accredited school, and rollovers to a plan outside Iowa bring the deductions back as income.
| Benefit for contributions | Deduction |
|---|---|
| Cap | $6,100 single, $12,200 joint per child, per taxpayer (joint figure only if both spouses contribute or own accounts) |
| Another state’s plan counts | No, in-state plan only |
| State plans (official names, no recommendation) | ISave 529, IAdvisor 529 Plan |
| Account balance limit | $505,000 |
| K-12 withdrawals qualified for state tax | Partly |
| 529 to Roth IRA rollover qualified | Yes |
| Student loan payments qualified | Yes |
| Add-back on a rollover to another state’s plan | Yes |
Ownership decides the cap
The Iowa Treasurer and the ISave program description reserve the deduction to the person who owns the account. The cap of $6,100 applies per beneficiary account the owner holds. Three consequences follow, and they surprise people moving from states with a per-return limit.
First, a married couple with one child and one account deducts $6,100, even on a joint return, saving $232. If each spouse opens an account for the same child, the room doubles to $12,200 and the saving to $464. That reading of the joint figure assumes two separate owners; the state text read does not describe any other way to reach it. Second, the cap repeats for each child: the same couple with two children and four accounts can subtract $24,400 and save $927. Third, a contributor who is not an owner has no deduction at all, so a grandparent who wants an Iowa tax break would have to own an account.
Iowa deduction with two owners per child
Iowa tax saved on this contribution
$927
| Subtracted from state income | $24,400 |
| Your state marginal rate | 3.80 % |
| Cap that applies this year | $24,400 |
| Back per $1,000 contributed | $38 |
An indexed number and a spring deadline
Section 12D.3 of the Iowa Code sets a base amount and indexes it to consumer prices each year; $6,100 is the 2026 figure published by the Treasurer and the ISave site. Contributions made by April 30, the Iowa filing deadline, can be counted for the year before. The deduction is flat in value: at 3.8 % on all taxable income, each subtracted dollar returns the same amount at any income. Many school districts add an income surtax computed on the state tax; it is not included in the figures here.
Iowa schools only, for K-12
Iowa Code 422.7(22)(c) spares from add-back K-12 withdrawals for tuition at an Iowa accredited elementary or secondary school, or at an accredited out-of-state school educating a child who needs special education. Tuition elsewhere is added back to the extent it was deducted. The ISave supplement on the 2025 federal law goes further and says qualified K-12 expenses at Iowa accredited schools have no Iowa tax consequences, which would include the newer non-tuition items. The Code still refers to tuition only, and no Department of Revenue guidance was found, so the treatment of books or tutoring paid from the account is not settled. The K-12 page covers the federal $20,000 limit.
What Iowa adds back, and what it leaves alone
Deducted amounts come back into Iowa income on withdrawals for anything other than college costs, qualifying K-12 tuition, apprenticeships, loan repayments, transfers within the Iowa trust, transfers to IAble, or Roth IRA rollovers. A rollover to a plan outside Iowa counts as a nonqualified withdrawal up to what was deducted. A family that subtracted $18,300 over three years and then moves the account to another state's plan adds that much to Iowa income.
Iowa add-back if the account leaves the state
Iowa tax if the deductions come back
$695
| Amount added back | $18,300 |
| Your state marginal rate | 3.80 % |
Earnings from the Iowa trust are exempt from Iowa tax. ISave accepts contributions until a beneficiary's accounts reach $505,000, the figure in the August 2024 program description.