409A Valuation vs Preferred Valuation: Key Differences Explained

A 409A valuation — named after Section 409A of the IRS tax code — is an independent third-party appraisal of the fair market value (FMV) of a company's common stock. It's required by law before issuing stock options to employees and contractors. The 409A must be performed by a qualified independent appraiser and is valid for 12 months (or until a material event like a financing round). For early-stage companies, 409A valuations are often 10–30% of the preferred valuation because common stock has no liquidation preferences, anti-dilution rights, or other investor protections. Setting options below FMV creates serious tax penalties for employees under IRC Section 409A, hence the regulation. The 409A creates the legal basis for employees to receive options at a discount to the company's market value. The appraisal methodology is what produces the discount. A 409A provider typically starts from the preferred round price, then backs out the value of everything the preferred stockholders got that common did not — liquidation preferences, anti-dilution protection, redemption and consent rights — commonly using an option-pricing model that treats each share class as a claim on different slices of future exit values. A discount for lack of marketability is then applied on top, because private common stock cannot be sold. Following the safe-harbor process (a qualified independent appraisal, refreshed every 12 months or at any material event) shifts the burden of proof to the IRS: the valuation is presumed reasonable unless the IRS shows it was grossly unreasonable.

The preferred valuation (or VC round valuation) is the pre-money or post-money valuation established in a venture financing. It reflects the price institutional investors are willing to pay for preferred stock — which comes with liquidation preferences, anti-dilution rights, board representation, and other protective provisions. Preferred stock is worth more than common stock by design — its additional rights create economic value, especially in downside scenarios. When a company says 'we raised at a $50M valuation,' they mean $50M post-money for preferred shares. The 409A for the same company might value common shares at $5–15M FMV — a significant discount that lets employees receive options at a bargain price relative to the preferred round. It matters that the preferred valuation is a negotiated price, not an appraisal. It embeds the round's competitive dynamics, the investors' portfolio math, and the value of the preferred stock's downside protections — a $10M post-money number is the price of shares that get their money back first, not a neutral statement of what the whole business would fetch. This is precisely why the IRS does not require companies to price employee options at the preferred price, and why treating the headline valuation as "what the company is worth" overstates what a common share is worth today.

Both are critical — for different reasons. The preferred valuation is your company's headline and fundraising benchmark. The 409A is your legal compliance tool and the basis for employee equity. The gap between them is the discount employees effectively receive on their equity — and understanding that gap is key to explaining the actual value of option grants to your team. When recruiting, use both numbers honestly: the preferred valuation tells a candidate what investors paid and the 409A tells them what their strike price will be — the distance between the two is the discount they are getting for joining early. A company that explains that gap plainly builds more trust (and closes more offers) than one that waves a headline valuation around.

A startup raises a $10M Series A at a $30M post-money valuation (preferred stock). They need to grant options to a new VP of Engineering. Before granting options, they get a 409A appraisal from a firm like Carta or Preferred Return. The appraiser values common stock at $3/share — roughly 10% of the $30M preferred valuation — based on the liquidation preferences that benefit preferred investors first. The VP receives options at $3/share (the 409A FMV). If the company sells for $100M, preferred investors get paid first per their liquidation preferences, and the remaining upside flows to common — making $3 a fair price for common stock today. Here is the same gap worked at a $10M post-money. A startup raises $2.5M at a $10M post-money valuation with 10,000,000 fully diluted shares, so the preferred price is $10,000,000 ÷ 10,000,000 = $1.00 per share, and the investors hold a $2.5M liquidation preference that pays out first. The 409A appraiser backsolves from that $1.00 preferred price, strips out the value of the preference and the preferred's other rights, applies a marketability discount, and — as is common for a seed-stage company at this profile — lands common FMV somewhere in the range of a quarter to a third of the preferred price, say $0.30 per share. An engineer granted 50,000 options is struck at $0.30, not $1.00: their exercise cost is $15,000 for shares the last investor paid $50,000 for. If the company later sells at $3.00 per share, the engineer's spread is $2.70 × 50,000 = $135,000 — and the low, defensible strike price is exactly what the 409A regime exists to permit.