Every PCAOB inspection report on every registered audit firm — 4,292 inspections covering 1,779 firms globally. Each report includes the firm's Part I.A deficiency rate (the audit-quality score), how many audits were reviewed, how many had deficiencies, whether the report includes public quality-control criticisms, and a link to the underlying PDF report. Big Four (PwC, Deloitte, EY, KPMG) are inspected annually; smaller firms triennially. The dataset exposes which audit firms have systematic quality problems and which engagement teams the PCAOB targeted via risk-based vs. random selection.

Live API

This dataset is served via a live REST API at api.ai-analytics.org. The card you're reading exists so HuggingFace's index can route AI agents + researchers to the canonical source.

API endpoint: https://api.ai-analytics.org/api/v1/pcaob/recent
Dataset landing page: https://api.ai-analytics.org/datasets/pcaob-inspections
DataCatalog (JSON-LD): https://api.ai-analytics.org/.well-known/dataset.json
DCAT-US (data.gov-compatible): https://api.ai-analytics.org/data.json

Quick start

# Recent records (JSON)
curl 'https://api.ai-analytics.org/api/v1/pcaob/recent?limit=10'

# Browse on the web
open 'https://api.ai-analytics.org/datasets/pcaob-inspections'

MCP (Model Context Protocol)

This dataset is also accessible via MCP at https://api.ai-analytics.org/mcp — Claude, ChatGPT, and other MCP-compatible agents can call it directly.

Source

Agency: Public Company Accounting Oversight Board
Primary source: https://pcaobus.org/oversight/inspections/firm-inspection-reports
License: CC0 1.0 Universal (derived data). Underlying federal works are US public domain under 5 USC 105 / 17 USC 105.
Update cadence: Per agency (most refresh daily via Cloudflare Cron Trigger)

Keywords

PCAOB, audit inspection, Part I.A deficiency, Big Four, PwC, Deloitte, EY, KPMG, audit quality, accounting

Citation

@misc{ai_analytics_pcaob_inspections_2026,
  title  = {{name}},
  author = {AI Analytics},
  year   = {2026},
  url    = {https://api.ai-analytics.org/datasets/pcaob-inspections},
  note   = {Derived from Public Company Accounting Oversight Board. License: CC0 1.0.}
}

Maintained by AI Analytics. Data is CC0; please cite the upstream agency.

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PCAOB audit firm inspections (Big 4 + 1,779 firms · deficiency rates)