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Dictionary termTrack EProposedv2026.2

Single Audit (US)

A US federal annual organisation-wide audit required of non-federal entities expending more than a defined threshold of federal funds, conducted under 2 CFR 200 Subpart F (formerly OMB Circular A-133).

ByCASRAI Editorial Board
· Last updated 23 Aug 2026
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Examples

Worked examples

  • Is an instance

    A research university expending $400 million in federal awards undergoes its annual Single Audit, with NIH grants identified as a major programme.

  • Is an instance

    A non-profit expending $1.2 million in federal funds is subject to Single Audit for the first time.

Counter-examples

Looks similar, but isn't

  • Not an instance

    A purely private-foundation-funded organisation with no federal funds is not subject.

  • Not an instance

    A sponsor's specific programmatic audit is not the same as the comprehensive Single Audit.

Editorial commentary

The Single Audit examines an entity’s financial statements, schedule of expenditures of federal awards (SEFA), internal controls, and compliance with major-programme requirements. The threshold was raised from $750,000 to $1,000,000 of federal expenditure in 2024 under revisions to 2 CFR 200. Auditors test major programmes identified through a risk-based approach. The audit report is publicly available through the Federal Audit Clearinghouse. Findings of material weakness or non-compliance can trigger high-risk designation by federal agencies.

The threshold, dated and sourced

The current $1,000,000 expenditure threshold comes from OMB’s April 2024 revision to 2 CFR 200 Subpart F, effective for non-federal entity fiscal years beginning on or after 1 October 2024 — entities expending less than that in federal awards during the fiscal year are exempt from the Single Audit requirement (though records must still be available for review). This figure is secondary-sourced, corroborated across EAC.gov, EPA.gov, and university sponsored-programs office pages that converge on the same $750,000-to-$1,000,000 change; re-verify directly against ecfr.gov before treating it as current if citing more than roughly a year after this note. See Single Audit: 2 CFR 200 Subpart F requirements and thresholds for the full compliance breakdown, including major-programme selection and reporting deadlines.

How it connects to subrecipient monitoring

A prime recipient’s subrecipient monitoring obligations under 2 CFR 200.332 explicitly include reviewing a subrecipient’s own Single Audit findings where applicable — a subrecipient’s audit is one of the risk signals a pass-through entity is expected to factor into how closely it monitors that subrecipient going forward.

References

  • US Office of Management and Budget Uniform Guidance 2 CFR 200 Subpart F; Federal Audit Clearinghouse data.

Where a programme carries an MOE requirement, auditors test the baseline as part of this same engagement.

Also known as

A-133 audit · 2 CFR 200 Subpart F audit · Federal Single Audit

Machine-readable encodings

Use in your systems

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Schema.org DefinedTerm (JSON-LD)
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