Nonprofit Audit Data for Journalists and Researchers
AuditRadar publishes 10 free datasets on nonprofit single audits, 4 with CSV downloads: 58,881 pages in them, built from Federal Audit Clearinghouse filings, IRS Form 990 returns and state audit rules, reusable under CC BY 4.0. Data as of 2026-10-30.
Data as of Oct 30, 2026 · Sources: Federal Audit Clearinghouse and IRS Form 990 e-file data (public records) · License: CC BY 4.0
Which datasets does AuditRadar publish?
10 datasets, each a set of public pages with the same shape and method. Every page names its source, its data date and its method; the statistics pages also carry a CSV. The counts below are read from the published pages on every build.
| Dataset | URL pattern | Pages (count) | Source | Data as of | Example | CSV |
|---|---|---|---|---|---|---|
| Single audit statistics by state and yearNonprofit single audit counts, federal expenditures and finding rates for one state and audit year. | /statistics/nonprofit-single-audits/{state}/{year}/ | 449 | Federal Audit Clearinghouse | Oct 30, 2026 | Example page | Example CSV |
| Single audit finding rates by stateReports with a finding, a material weakness or a repeat finding, by state and audit year, with the denominator. | /statistics/nonprofit-audit-findings/{state}/ | 48 | Federal Audit Clearinghouse | Oct 30, 2026 | Example page | Example CSV |
| Auditor changes by stateHow often a nonprofit’s observed auditor differs from the one on its prior filing, by state. | /statistics/nonprofit-auditor-changes/{state}/ | 43 | Federal Audit Clearinghouse | Oct 30, 2026 | Example page | — |
| Quarterly auditor change reportNational count of nonprofits that appear with a different auditor than on their prior filing, each quarter. | /statistics/nonprofit-auditor-change-report-{yyyy}-q{n}/ | 8 | Federal Audit Clearinghouse | Oct 30, 2026 | Example page | Example CSV |
| First single audits by stateNonprofits filing a first single audit each year, and those that appear to have entered the threshold. | /statistics/single-audit-threshold/{state}/ | 50 | Federal Audit Clearinghouse | Oct 30, 2026 | Example page | — |
| Reported accounting fees by stateForm 990 accounting fees by state and revenue band, with the number of organizations behind each figure. | /nonprofit-audit-cost/{state}/ | 42 | IRS Form 990 e-file data | Oct 30, 2026 | Example page | Example CSV |
| Single audit histories by organizationEvery single audit an organization filed: the audit years, the auditor observed on each filing, the findings and the federal programs. | /single-audits/{state}/{organization}-{ein}/ | 56,848 | Federal Audit Clearinghouse | Oct 30, 2026 | Example page | — |
| Audit firms by stateThe CPA firms observed as auditor on nonprofit single audits in one state, with the count behind each. | /nonprofit-audit-firms/{state}/ | 49 | Federal Audit Clearinghouse | Oct 30, 2026 | Example page | — |
| Audit firm profilesOne firm’s observed nonprofit single audits: years, states, federal programs and auditor changes. | /audit-firms/{firm}/ | 1,321 | Federal Audit Clearinghouse | Oct 30, 2026 | Example page | — |
| State audit requirementsA state’s audit threshold for nonprofits, quoted from the statute or the regulator with the date it was read. | /nonprofit-audit-requirements/{state}/ | 23 | State statute or regulator | Sep 21, 2026 | Example page | — |
A CSV is linked only when the file is on the server now. Each statistics page links its own CSV beside its “Cite this page” block.
How can I reuse this data?
Freely, with credit. The datasets and the statistics pages are published under the Creative Commons Attribution 4.0 International license (CC BY 4.0): copy, chart and republish them, including commercially, and name AuditRadar with a link to the page you used. The underlying Federal Audit Clearinghouse and IRS records are public records.
How should I cite AuditRadar data?
Cite the page you took the figure from; every statistics page prints its own citation. For the collection as a whole:
AuditRadar. “Nonprofit Audit Data for Journalists and Researchers.” https://getauditradar.com/data/. Data as of 2026-10-30. Sources: Federal Audit Clearinghouse and IRS Form 990 e-file data. License: CC BY 4.0.
How is the data built?
From the public Federal Audit Clearinghouse single audit database and IRS Form 990 e-file data, by rules written out on the method page: what each figure counts, the minimum size before a rate is printed, and what is left out. Data status shows the last sync, the periods covered and the row count of every source, and facts.json lists every number the site prints with its definition.
Which feeds can I subscribe to?
- Guides (RSS): new single audit and nonprofit audit guides.
- Nonprofit audit RFPs (RSS): requests for proposals as they are published on /audit-rfps/, each checked against the issuer’s own page.
- Data reports: weekly single audit, first-time filer and auditor-change reports, the live RFP watch and three annual reports, each with a CSV and a citation.
- llms.txt and llms-full.txt: the map of every published page, for machines.
- sitemap.xml: every indexable page with its data date.
How can journalists reach AuditRadar?
AuditRadar turns public Federal Audit Clearinghouse and IRS filings into nonprofit single audit statistics, audit firm directories and ranked account lists for CPA firms, with a link to the filing behind every figure; it is not affiliated with GSA or the Federal Audit Clearinghouse.
- Press and data questions: support@getauditradar.com
- Logo: download the AuditRadar logo
- About the company: /about · corrections: report a data issue
What does this data not show?
It shows what was filed, not what is happening now. The auditor on a page is the one most recently observed on a filed report, not a statement about any engagement in place today; a count of auditees is a count of filings, not a client list. An organization below the single audit threshold files no single audit and is not in the Clearinghouse at all.