Iowa School Tuition Organization Tax Credit: A Donor's Guide

Iowa's STO credit, in brief

Iowa created its school tuition organization (STO) program in 2006 with the Educational Opportunities Act. You give to an STO, a nonprofit that awards tuition grants so lower- and middle-income children can attend accredited private schools. You receive an Iowa income tax credit worth 75% of your gift. Iowa ACE calls it the largest state income tax credit available to individual Iowa taxpayers.

Iowa also joined the new federal scholarship tax credit. Governor Kim Reynolds announced Iowa's opt-in on January 5, 2026. Her office said it would work with the Iowa Department of Education to certify eligible SGOs. In May 2026, Iowa's STOs announced they had incorporated a statewide Iowa Scholarship Granting Organization (ISGO) to serve the federal program.

Who can claim it

• Individuals, including married couples
• Businesses. Individuals can claim their share of credits earned by a partnership, LLC, S corporation, estate or trust. Iowa ACE says C corporations are eligible too.

Nonresidents and part-year residents prorate the credit by Iowa-source income. Married couples filing separately split it by each spouse's share of income.

Amounts and caps

Each accredited private school is represented by one STO, and each STO gets a share of the $20 million pool. A busy STO can run out of certificates even when others still have some. Iowa ACE lists twelve STOs, from Heart of Iowa STO to Mississippi Valley STO.

STOs must give at least 90% of annual revenue as tuition grants. Grants go to Iowa children from households at or below 400% of the federal poverty guidelines, at more than one school. You can't designate your gift for your own child or any other student.

Certificates and deadlines

Iowa doesn't preapprove donors. Instead it preapproves STOs:

• Each school reports its October 1 enrollment by November 1.
• By December 1, the Iowa Department of Revenue authorizes each STO's certificate allotment for the next calendar year.
• When you give, the STO issues a tax credit certificate with your name, address, tax ID, gift amount and credit amount. You include it with your Iowa return.

Credits count for contributions made during the tax year. Ask your STO early in the year whether certificates remain.

How it stacks with the federal $1,700 credit

From January 1, 2027, any individual can claim up to $1,700 in federal credit for cash gifts to an SGO on the IRS list. Under Treasury's proposed rules, a state credit for the same qualified contribution is subtracted first, then the $1,700 cap applies.

Whether one Iowa gift can earn both depends on whether the organization is on Iowa's federal SGO list. The federal and state rules aren't identical. Iowa's STO income limit is 400% of federal poverty guidelines. The federal limit is 300% of area median gross income, and federal SGOs can fund expenses beyond private school tuition.

Worked example 1: separate gifts. Tom is single and owes $5,000 in Iowa tax and $9,000 in federal tax.

• He gives $4,000 to his parish school's STO and gets a $3,000 Iowa certificate.
• In 2027 he gives $1,700 in cash to an SGO on the IRS list, designates it as a qualified contribution and claims no Iowa credit on it.

Result: $3,000 Iowa credit and $1,700 federal credit on $5,700 given. His net cost is $1,000.

Worked example 2: one gift that earns both. If an organization is on Iowa's federal SGO list and can also issue Iowa STO certificates, Tom could give $6,800 in cash, designated as a qualified contribution.

• Iowa credit: 75% of $6,800 is $5,100.
• Federal credit: $6,800 minus $5,100 is $1,700, the full federal credit.

That's $6,800 in credits for a $6,800 gift. Confirm both with the organization and your tax preparer before you rely on it. Stock and grain gifts work for Iowa only; the federal credit is cash only.

How to give, step by step

1. Pick an STO from the Iowa ACE directory, usually the one representing a school you care about.
2. Confirm certificates are available for the year.
3. Give cash, stock or grain, without naming a student.
4. Get your certificate and file it with your Iowa return.
5. In 2027, add a federal gift of up to $1,700 per spouse to an SGO on the IRS SGO list, designated as a qualified contribution. Our guide to claiming the federal scholarship tax credit covers the acknowledgement and Form 8525.

Business owners should read business tax credit scholarships. Iowa allows pass-through credits, but the federal credit requires a personal gift.

Choosing an STO or SGO

Ask how many grants the organization awards, at which schools, what share of revenue reaches families and whether it will be on Iowa's federal list for 2027. Our checklist for choosing a scholarship fund has more questions. See every state's status on the states opted in tracker. Families can read about Iowa's Students First education savings accounts and other options on Iowa scholarships.

Edulist never handles donations. You give directly to the STO or SGO. Pledge on Edulist and we'll remind you when federal giving opens on January 1, 2027. This page reflects Iowa law and Treasury's proposed rules as of October 13, 2026. It is not tax advice; ask your tax professional.