A 409A valuation is an independent appraisal of a company's common stock fair market value, required before issuing stock options under IRC Section 409A. The IRS cares because options granted below fair market value are treated as deferred compensation subject to immediate income tax and a 20% excise penalty on the optionholder. An independent 409A valuation creates a rebuttable presumption of fair market value, protecting the company and employees from IRS challenge.
Section 409A of the Internal Revenue Code requires that stock options issued to employees and service providers be granted with an exercise price equal to the fair market value of the underlying stock on the grant date. Failure to comply with Section 409A creates severe consequences for employees — not just the company — including immediate income recognition, a 20% excise tax, and interest charges on the deferred amount. The "independent appraisal" safe harbor under Section 409A allows companies to rely on a third-party valuation to establish fair market value, provided the appraiser meets minimum qualifications and the valuation is reasonably current. In 2026, with IRS scrutiny of high-value technology company option grants increasing, having a defensible appraisal process matters more than it did in previous years.
Carta's free 409A valuation service is adequate for early-stage companies with simple structures and no recent priced financing activity. The risk increases when the company has closed a recent SAFE or priced round, when it is approaching Series A or a secondary transaction, or when the company's revenue and growth metrics suggest a material enterprise value increase since the last valuation. In these situations, an independent third-party 409A from a specialized firm reduces audit risk significantly.
Gurpreet S. Bal identifies several specific scenarios where the automated valuation process creates exposure. First: when a company has recently closed a priced round and the implied post-money valuation raises questions about how the common stock was valued relative to the preferred. The ratio of preferred value to common value — the "DLOM" discount applied to common stock — is one of the most contested areas in 409A disputes, and a software model may apply a generic discount that doesn't reflect the company's actual rights structure. Second: when key employees are receiving large grants where a lower strike price produces a meaningful tax benefit. Third: when the company is actively exploring an M&A process and the 409A may later be scrutinized as evidence of the fair market value at a specific date. "A $5,000 independent 409A can save your employees a lot of money compared to a software-generated one that gets challenged," Gurpreet S. Bal notes.
Independent 409A firms bring dedicated valuation analysts who can apply multiple methodologies, provide detailed documentation supporting their assumptions, and defend their work under IRS audit more robustly than automated or semi-automated platforms. For companies where cheap stock risk is material — particularly those approaching an IPO or acquisition — the defensibility of the valuation methodology matters as much as the number itself.
The mechanics of a 409A valuation — the option pricing model, the comparable company analysis, the discount for lack of marketability — are similar whether done by Carta's platform or by an independent firm. The difference is in the judgment applied to the inputs. A qualified independent appraiser will conduct interviews with management, review the company's financial model and competitive landscape, and apply professional judgment to the allocation methodology. They will also produce a valuation report that can be defended in an audit or a transaction context. Gurpreet S. Bal has seen both types of reports reviewed by acquirer counsel and tax advisers during M&A transactions, and the quality difference is often apparent. The company that paid $5,000 to $10,000 for an independent valuation typically has a report that holds up. The company that used a free automated report sometimes has to explain why certain methodological choices were made — and "the algorithm decided" is not a satisfying answer to a tax auditor.
Founders should use a more rigorous independent 409A when they have closed a recent priced round, are planning a secondary transaction for employees or early investors, are approaching a Series A or IPO, or when the company's growth has significantly outpaced the most recent valuation. For a pre-seed company with no revenue and no priced financing, Carta's automated service is generally adequate and the risk of IRS scrutiny on option grants is low.
Gurpreet S. Bal's heuristic is simple. For a pre-revenue company granting small option pools to a handful of early employees, the free Carta offering is likely adequate. As the company grows, raises priced rounds, and begins granting options to employees whose financial outcomes will depend meaningfully on the strike price, the case for an independent firm strengthens. Any company that has received a term sheet for a financing or acquisition within the past six months, or that is actively grant-making in the weeks before a major financing, should use an independent appraiser. The cost of an independent 409A is modest relative to the potential tax exposure it prevents — and Gurpreet S. Bal can usually make introductions to qualified firms who work efficiently with venture-backed companies. The decision should be driven by the stakes, not by the desire to minimize line items on the legal budget.
Gurpreet S. Bal is a corporate partner with 16 years advising on private equity, merger transactions, and public offerings for companies and investors at three of the world's top law firms. He has represented clients in hundreds of transactions with aggregate deal value exceeding $60 billion across AI, semiconductors, fintech, and emerging technology. For more information and to get in touch, visit gurpreetbal.com.