Are 409A Valuations Public? A Startup Lawyer's Answer

Are 409A Valuations Public? A Startup Lawyer's Answer

The Startup Law Blog
The Startup Law BlogMay 14, 2026

Key Takeaways

  • 409A valuations are confidential, not filed with any government agency.
  • Investors, auditors, and boards routinely review the valuation during diligence.
  • Stale or aggressive 409As can trigger audit issues or purchase price adjustments.
  • IPO filings disclose historical 409A values in the S‑1 prospectus.
  • Refresh the valuation within 12 months or after any material corporate event.

Pulse Analysis

Section 409A of the Internal Revenue Code requires private companies to establish a fair‑market value for their common stock before granting stock options. The resulting 409A valuation is prepared by an independent appraiser under a private engagement and remains the company’s property; it is never filed with the IRS, the SEC, or any state registry. Because the report is not a public record, it can be kept confidential, yet the valuation must be defensible enough to survive scrutiny from sophisticated third parties who may request it during financing, acquisition, or regulatory reviews.

In practice the 409A report circulates far beyond the founder’s desk. Boards adopt the valuation in meeting minutes, auditors demand it to satisfy ASC 718 fair‑value requirements, and lead investors examine it as a litmus test for valuation discipline. During an M&A transaction buyers request historical 409As to confirm that option grants were priced appropriately, while an IPO prospectus must disclose past 409A figures, allowing underwriters and the SEC to assess whether the public offering price is reasonable. An IRS audit will also summon the report if a Section 409A violation is alleged.

The takeaway for startups is to treat the 409A as a public‑facing document from day one. Hire a reputable valuation firm, ensure the board formally adopts the report, and update the appraisal at least annually or after any material event such as a new financing round, major customer win, or significant personnel change. A well‑documented, defensible valuation protects against costly tax penalties, audit findings, and purchase‑price adjustments, and it streamlines due diligence for investors and acquirers. In short, a robust 409A process is a cornerstone of sound equity‑compensation strategy.

Are 409A Valuations Public? A Startup Lawyer's Answer

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