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School tax credit challenges

Arizona Christian School Tuition Organization v. Winn

Updated Oct 18, 2026

In brief

The Supreme Court overturned the Ninth Circuit and ruled that these taxpayers could not sue over Arizona’s tuition tax credit because it was not government spending.

Where it stands
Decided

Decided 5-4 · April 4, 2011 · Opinion by Justice Scalia

What it’s about
Arizona taxpayers argued that a state tax credit helping fund private-school tuition violated the First Amendment’s ban on government establishment of religion.
Who it affects
The taxpayers who brought the case lacked the legal right to sue over the credit; the Court did not decide whether it violates the First Amendment.

Summary: written with AI from the case record.

Illustration for Arizona Christian School Tuition Organization v. Kathleen M. Winn
Conceptual illustration · AI-generated

What it's about

The Supreme Court overturned the appeals court, deciding the taxpayers lacked the legal right to sue because they challenged a tax credit, not government spending.

The taxpayers alleged that some scholarship organizations considered a child’s religion when awarding aid. The Court did not decide that allegation.

Arizona’s program offered taxpayers tax credits for contributions to organizations that awarded private-school scholarships.

Question presented

Do the plaintiffs lack standing because they cannot allege that the Arizona tuition tax credit involves the appropriation or expenditure of state funds?

What the Court decided

Holding

Because respondents challenge a tax credit as opposed to a governmental expenditure, they lack Article III standing under Flast v. Cohen, supra. 562 F. 3d 1002, reversed.

Result
Reversed

The Court's reasoning

The Court said the exception that lets taxpayers challenge some government spending on religion did not apply because these taxpayers challenged a tax credit, not a government expenditure.

The vote

  • Joined the judgment
  • Dissented
  • Wrote an opinion
Majority · 5joined the Court's opinion
  1. Thomas
  2. Scaliawrote the opinion
  3. Kennedyalso wrote separately
  4. Roberts
  5. Alito
Dissenting · 4disagreed with the result
  1. Breyer
  2. Kaganwrote the dissent
  3. Ginsburg
  4. Sotomayor
5 justices joined the judgment, 4 dissented.

From the opinions

“But every taxpayer-plaintiff has had her day in court to contest the government’s financing of religious activity.”

— Justice Kagan(dissent)

What's next

The taxpayers’ federal challenge cannot proceed after the Supreme Court’s ruling. The decision leaves unanswered whether the credit violates the First Amendment.

Documents

2

Opinions

  • Winn

    Kennedy, Roberts, Scalia, Thomas, Ahito, Kagan, Ginsburg, Breyer, Sotomayor

Audio

View the full docket on supremecourt.gov

Docket activity

10
  • New analysis added

    Oct 18, 2026 · Court records

  • AI analysis generated: Impact Analysis

    Oct 18, 2026 · Generated

  • AI analysis generated: Opinion Summary

    Oct 18, 2026 · Generated

  • New analysis added

    Oct 18, 2026 · Court records

  • AI analysis generated: Case Briefing

    Oct 18, 2026 · Generated

Show 5 more
  • AI analysis generated: Decision Record

    Oct 18, 2026 · Generated

  • Case data updated: summary, question_presented, generation_metadata

    Oct 18, 2026 · Court records

  • Case data updated: question_presented, extraction_metadata

    Oct 18, 2026 · Court records

  • Audio Recording added: Oral Arguments - Winn

    Oct 30, 2014 · Court records

  • Opinion added: Winn

    Apr 4, 2011 · Court records

More questions

1
Why did Justice Scalia write separately?
He said the rule allowing some taxpayer suits over government spending conflicted with limits on federal courts, but agreed with the result because the majority applied that rule.

Sources

Primary materials plus reporting. Best-effort analysis: this explainer relies on a mix of primary materials and trusted secondary sources. Official filings and opinions remain authoritative.

Checked Oct 18, 2026Methodology

Court records and filings

Reporting and analysis