Can You Use an Arizona ESA at a Montessori School? The Preschool Catch Most Families Miss
Arizona's ESA program is universal from kindergarten up — but the 3- and 4-year-old years, where most Montessori enrollment sits, are covered only for children with disabilities. And you cannot combine an ESA with an STO scholarship.
·7 min read
Arizona has the most expansive school-choice funding in the country, and more than 104,000 students were enrolled in the Empowerment Scholarship Account program for 2026-27. So it is reasonable for a parent touring a Montessori preschool to assume the state will help pay for it.
Often it will not — and the reason is a detail buried in the eligibility rules that trips up a lot of Montessori families specifically.
The short version
- ESA is universal from kindergarten — the child must be five by January 1 of the contract year.
- For ages three and four, ESA is available only to children with disabilities.
- You cannot combine an ESA with an STO tax-credit scholarship for the same student at the same time.
- Taking an ESA means withdrawing from public school, including tuition-free Montessori charters.
Why this bites Montessori families hardest
Montessori's first plane of development runs from birth to six, and in Arizona that is where most of the sector sits. Of the 99 open Montessori schools in our directory, 52 — 53% — do not go beyond the primary years. Only 47 serve elementary grades or higher.
So the single most common Arizona Montessori experience is a three- or four-year-old in a primary classroom. That is precisely the age band the universal ESA does not reach. A family can enroll at three, pay privately for two years, and only become ESA-eligible in the kindergarten year — by which point many primary programs are the last year the school offers anyway.
What the eligibility rules actually say
The Arizona Department of Education lists several eligibility routes. The two that matter here:
- Universal, kindergarten through grade 12. The student must be at least five years of age as of January 1 of the contract year to be eligible as an entering kindergartner.
- Preschool program for children with disabilities. The student must be at least three years old but not yet kindergarten age — and students within ninety days of their third birthday also qualify, under A.R.S. § 15-771(G).
There is no universal preschool ESA. If your three-year-old does not have an identified disability, an IEP, MET, 504 plan, or IEE, the preschool route is not open to you. Check the current eligibility rules before you plan around it.
ESA or STO — you have to pick
The second thing families get wrong is assuming these stack. They do not. Arizona's School Tuition Organizations are explicit about it: a parent cannot simultaneously use tax-credit scholarship funds and ESA funds for the same student. Families may switch from one to the other in a different quarter or school year, but not run both at once.
For a Montessori family, that turns into a fairly clean rule of thumb:
| Situation | Usual route | Why |
|---|---|---|
| Age 3–4, no disability | STO scholarship | ESA is not available at this age |
| Age 3–4, with a disability | ESA may be available | Preschool ESA category applies |
| Kindergarten and up, private school | Compare ESA vs STO | Both are open; you must choose one |
| Happy at a Montessori charter | Neither | Already tuition-free; an ESA would mean withdrawing |
That last row is worth dwelling on. Arizona has 26 tuition-free Montessori programs — charters and district schools that charge nothing. An ESA is not a top-up for those families; accepting one means leaving.
How much is an ESA worth?
Per the Department of Education, an ESA consists of 90% of the state funding that would otherwise have been allocated to the district or charter school for that student. In practice that has generally landed around $7,000 a year for a student without a disability, and materially more for students with disabilities — the award scales with need.
We are deliberately not printing a precise figure here. The amount is formula-driven and changes; a number that is right today is wrong next year, and budgeting off a stale blog post is how families end up short. Get the current figure from the Department of Education.
What to do next
- If your child is under five and has no disability: look at STO scholarships, not ESA. Our guide to how STO scholarships work covers the application cycle.
- If your child is entering kindergarten: run both numbers. An STO award varies by organization and need; an ESA is formula-driven. Ask the school which their families more commonly use.
- If cost is the deciding factor: start with the 26 tuition-free Montessori programs. No scholarship paperwork required.
Frequently asked questions
Can I use an Arizona ESA to pay for Montessori preschool?
Generally no. The universal ESA covers kindergarten through 12th grade, and a child must be at least five years old by January 1 of the contract year to enter as a kindergartner. There is a separate ESA category for preschoolers, but it is limited to children with disabilities — at least three years old (or within 90 days of their third birthday) and not yet kindergarten age. A typical three- or four-year-old without a disability does not qualify.
Can I use an ESA and an STO scholarship at the same time?
No. Arizona law prohibits using Empowerment Scholarship Account funds and a School Tuition Organization tax-credit scholarship for the same student at the same time. Families can switch between them — STO organizations note that a family may move from one to the other in a different quarter or school year — but not stack them.
How much is an Arizona ESA worth?
An ESA is funded at 90% of the state funding that would otherwise have gone to the district or charter school for that student, according to the Arizona Department of Education. For a student without a disability that has generally worked out to roughly $7,000 a year, and substantially more for students with disabilities. Check the Department of Education for the current year's figure before budgeting.
Does taking an ESA mean leaving public school?
Yes. An ESA is an alternative to public school enrollment, not a supplement to it. Signing an ESA contract means withdrawing the student from their district or charter school, which matters if you are considering one of Arizona's tuition-free Montessori charters.
Eligibility rules and the 90% funding basis are from the Arizona Department of Education's ESA pages; the prohibition on combining ESA and STO funds is stated by multiple Arizona School Tuition Organizations. We are a directory, not a financial or legal adviser — confirm your own eligibility with the Department of Education before making a decision. Spot an error? Tell us and we will fix it.