School tax credit challenges
Arizona Christian School Tuition Organization v. Winn
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.

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
From the opinions
“But every taxpayer-plaintiff has had her day in court to contest the government’s financing of religious activity.”
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
Opinions
Audio
Docket activity
New analysis added
AI analysis generated: Impact Analysis
AI analysis generated: Opinion Summary
New analysis added
AI analysis generated: Case Briefing
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AI analysis generated: Decision Record
Case data updated: summary, question_presented, generation_metadata
Case data updated: question_presented, extraction_metadata
Audio Recording added: Oral Arguments - Winn
Opinion added: Winn
More questions
- 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.