What ACSTO does

ACSTO (Arizona Christian School Tuition Organization) is a 501(c)(3) nonprofit founded in 1998 and certified by the Arizona Department of Revenue under A.R.S. 43-1602 and 43-1603 as a School Tuition Organization (STO). It is the first STO in the United States. ACSTO administers Arizona's Private School Tax Credit Program by collecting tax credit donations from individual Arizona taxpayers and converting them into tuition scholarships for K-12 students attending partner Christian schools, awarding 92% of donations as scholarships (above the 90% statutory minimum).

Its core products are two scholarship programs — the Original Tax Credit Scholarship (under A.R.S. 43-1089, enacted 1997) and the Overflow Tax Credit Scholarship (under A.R.S. 43-1089.03, effective August 2012) — supported by three web-based portals: the Donor Portal for one-time and recurring donations, the Parent Portal for scholarship applications and family information, and the School Portal for partner school administration. Additional services include Parent Workshops (Zoom and on-campus), ACSTO Family Pages for viral donor outreach, and application processing.

The business model is donation-driven and nonprofit: ACSTO retains approximately 8% of donations for administrative operations and awards the remaining 92% as scholarships. Donor pricing is capped by Arizona statute ($787 original / $784 overflow for single filers; $1,570 / $1,561 for married filers in tax year 2026, totaling up to $1,571 and $3,131 respectively). ACSTO serves three primary segments: Arizona families seeking affordable K-12 Christian education for their children, Arizona taxpayers seeking dollar-for-dollar state tax credits, and 130+ partner Christian schools across Arizona. Distribution runs through online portals, phone/mail, school-coordinator-led outreach at school events, parent workshops, and social media.

Name

ACSTO

Legal name

Arizona Christian School Tuition Organization

Website

https://acsto.org

Company type

Private

Founded year

1998

Operating status

Operating

Headcount range

1–10 employees

Short description

ACSTO is an Arizona-based 501(c)(3) nonprofit founded in 1998 that administers the state's Private School Tax Credit Program, converting individual taxpayer donations into K-12 tuition scholarships for students attending 130+ partner Christian schools.

Ownership category

akta.pro rank

Product category

Private School Tax Credit Scholarship Administration

NAICS

Educational Support Services (611710), Educational Support Services (6117)

SIC

Services-Educational Services (8200)

akta.pro primary industry

Tuition Assistance & Voucher/ESA Program Administration (EDADAHAF)

akta.pro secondary industry

Scholarships, Grants & Education Benefits Administration (Financing-adjacent) (FSAKAEAM)

Keywords

• School tuition organization
• Tax credit scholarships
• Private school tuition aid
• Christian education funding
• Nonprofit scholarship administration

Headquarters

HQ city

Chandler

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2C

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Technology or R&D, Infrastructure

Revenue model

1. Tax Credit Donations: ACSTO receives tax credit donations from Arizona taxpayers who receive dollar-for-dollar state tax credits. The donations are used to award tuition scholarships to students at partner Christian schools. Arizona law requires 90% of donations be awarded as scholarships; ACSTO awards 92%.

Pricing tiers

Go-to-market motion3 records

Distribution channels5 records

Marketing channels7 records

Core offering

ACSTO administers Arizona's Private School Tax Credit Program by collecting tax-credit donations from Arizona taxpayers and converting them into tuition scholarships for K-12 students attending partner Christian schools. It runs two scholarship programs — the Original Tax Credit (A.R.S. 43-1089, enacted 1997) and the Overflow Tax Credit (A.R.S. 43-1089.03, effective 2012) — supported by three web portals (Donor, Parent, School), parent workshops, and ACSTO Family Pages.

Product overview

ACSTO operates as a School Tuition Organization (STO) administering Arizona's Private School Tax Credit Program. The core offering consists of two scholarship programs: the Original Tax Credit Scholarship (established 1997) and the Overflow Tax Credit Scholarship (established 2012). These programs enable Arizona taxpayers to receive dollar-for-dollar tax credits against their state tax liability by donating to ACSTO, which then awards tuition scholarships to students attending Partner Schools. ACSTO's service platform includes three web portals: the Parent Portal for families to apply for scholarships and manage awards, the Donor Portal for making donations and recommending students, and the School Portal for partner school administration. Additional services include Parent Workshops (Zoom-based and on-campus), ACSTO Family Pages for donor outreach, and application processing. The organization partners with over 130 Christian schools across Arizona and has awarded over $370 million in scholarships to more than 50,500 students since 1998.

Differentiator

Problem solved

Functional benefit

Products and services

• Original Tax Credit Scholarship Program Scholarship program funded through the Original Individual Tax Credit Law (A.R.S. 43-1089), enacted in 1997. Any student enrolled in a private Christian school in grades K-12, or a preschooler with disabilities, qualifies for this scholarship.
• Overflow Tax Credit Scholarship Program Scholarship program funded through the Switcher Individual Tax Credit Law (A.R.S. 43-1089.03), effective August 2012. Students must meet specific eligibility criteria including prior public/charter school attendance, preschooler with disabilities, kindergarten enrollment, military dependent status, or other qualifying conditions.
• Parent Portal Web-based portal enabling parents to apply for scholarships, view award history, update family information, create ACSTO Family Pages for fundraising, and manage scholarship applications for their students.
• Donor Portal Web-based portal allowing donors to make one-time or recurring donations, print tax receipts, view donation history, recommend students for scholarships, and schedule monthly giving.
• School Portal Web-based portal for partner schools to manage scholarship-related information, view award disbursements, and access administrative tools for the tax credit scholarship program.
• ACSTO Family Pages Custom web pages that families can share with friends and family to solicit tax credit donations and recommend specific students for scholarships, featuring personalized messaging and donation links.
• Parent Workshops Educational sessions offered via Zoom and on campus at partner schools that teach families how the Private School Tax Credit Program works, how to apply for scholarships, and how to make Christian Education affordable through the program.

Quantifiable outcome

• 92% of donations awarded as scholarships (exceeds 90% legal requirement)
• +3 more outcomes

Named customers2 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Four partnerships are on record, tiered core and minor.

• School Choice ArizonacoreStrategic or Co-development Partner · 1 January 2006Sister organization that awards scholarships through the Corporate Tax Credit Program. Steve Yarbrough serves as Executive Director of both ACSTO and School Choice Arizona.
• Alliance Defending Freedom (ADF)minorOthersLegal organization that represented ACSTO in the ACSTO v. Winn litigation at the U.S. Supreme Court.
• Institute for Justice (IJ)minorOthersCivil liberties law firm that supported ACSTO and Arizona's tax credit program in early years of litigation.
• 130+ Partner Christian SchoolscoreStrategic or Co-development PartnerChristian schools across Arizona that partner with ACSTO to receive scholarship awards for their students. ACSTO provides coordinators, resources, training, and support to these schools.

Scale indicators8 records

Recent moves7 records

Expansion highlights5 records

Others

• American Federation for Children: National school choice advocacy organization. ACSTO's bilingual representative previously worked with AFC's Hispanic parent outreach, indicating a connection; relevant as ecosystem/advocacy partner rather than direct competitor.
• Institute for Justice: Civil liberties law firm that supported ACSTO in defending the Arizona tax credit program in its early litigation. Not a direct competitor but a key ecosystem partner that shaped ACSTO's legal moat.

Direct peers

• School Choice Arizona: ACSTO's sister organization, also led by Steve Yarbrough; operates the parallel Corporate Tax Credit scholarship program in Arizona. Highly comparable operating model, shared donor/school network, complementary individual-vs-corporate donation channel.
• Step Up For Students: Florida-based school tuition organization administering tax-credit scholarships (Florida Tax Credit Scholarship and Gardiner/PEP scholarships). Largest STO in the U.S. by scholarship dollars; directly comparable as a state-level tax credit STO serving private K-12 schools.
• Tuition Organization for Private Schools (TOPS): Arizona-certified STO that competes directly with ACSTO for Arizona taxpayer donations directed to private K-12 schools. Same regulatory framework, same donor pool, same donation-to-scholarship mechanics.
• Scholarship Organization of Arizona (SOA) / IOP / BEOF: Other Arizona-certified STOs competing for the same tax-credit donations and serving private school families. Represent the fragmented peer set ACSTO competes against within Arizona's STO market.
• AAA Scholarship Foundation: Multi-state school tuition organization administering tax-credit scholarships in Florida, Georgia, and other states. Closely comparable model — process state tax-credit donations and award private school scholarships — making it a relevant peer for ACSTO's STO operations.

Broad incumbents

• EdChoice: National school choice advocacy and research organization; broader in scope (policy, research, advocacy) than ACSTO but operating in the same education choice ecosystem and shaping the regulatory environment in which ACSTO's tax-credit program exists.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/acstoconnect
• Instagraminstagram.com/acstoconnect

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about ACSTO