Glossary · Audit and reporting

SOX 404 and internal control reporting

What a newly public biotech must say about its controls, and which parts an emerging growth company can skip.

Section 404(a) of the Sarbanes-Oxley Act requires management of a public company to assess and report on the effectiveness of internal control over financial reporting, starting with the second annual report after the IPO. Section 404(b) requires the auditor to attest to that assessment, but emerging growth companies are exempt for up to five years, and smaller reporting companies with under $100 million in revenue remain exempt after that.

The management assessment is not trivial even without the auditor attestation. It requires documented processes, identified key controls, testing evidence, and a conclusion, across the close, revenue, equity, R&D accruals, and IT systems. Most companies bring in help for the first year and build the function afterward.

The practical advice is to design the control environment during audit readiness, so that the first 404(a) assessment describes controls that already operate rather than controls that had to be invented.

General explanation, not accounting, tax, or legal advice for any specific company. Standards and tax law change; the entry reflects my understanding as of September 2026.