Current draft of Senate Tax Reform Bill would tax stock options and RSUs upon vesting, which would have a devastating effect on equity compensation in startups
The current draft of the Senate Tax Reform Bill would tax stock options and RSUs upon vesting.
Context & Ripple Effects
The Senate's tax reform draft targets the moment startup employees actually receive their equity: taxing stock options and RSUs at vesting means a tax bill arrives on paper wealth years before any sale or IPO makes it real. As Ben Thompson noted, the plan wouldn't impede incumbent companies — public firms pay cash-heavy compensation anyway — which may explain why pushback came from the startup ecosystem rather than big tech.
The provision was dropped within days, but the underlying idea has staying power: Bernie Sanders later proposed taxing options at vesting rather than exercise for high earners, and Europe's experience shows how restrictive option tax regimes push companies toward profit-sharing substitutes instead of equity.
First-order effects
- Startup employees holding vested-but-illiquid options or RSUs would owe taxes on unrealized gains immediately, forcing many to sell early or decline equity offers entirely.
- Private companies would face immediate pressure to restructure compensation away from equity, since the standard 'work for less cash, more stock' deal becomes a personal liability for hires.
Second-order effects
- Incumbent public companies gain a recruiting edge without changing anything they do — their RSU holders can sell at vest to cover the tax, while startup candidates cannot — tilting the talent market toward large firms.
- Venture-backed startups would need larger cash compensation budgets or earlier liquidity events, tightening runway and pushing some toward acquisition over independent growth.
Third-order effects
- If vesting-based taxation recurs in future proposals, equity compensation could migrate from broad-based employee ownership toward executive-only packages, eroding the mechanism that spread startup upside across workforces.
- A US regime resembling Europe's restrictive option taxation would likely produce the same substitution Bloomberg documented there: profit-sharing plans replacing stock, weakening employee alignment with long-term company value.
The trend: Taxing equity at vesting keeps resurfacing as a revenue idea — dropped here, revived by Sanders in 2020 — with startup ecosystems repeatedly forced to defend exercise-based taxation against proposals incumbents can absorb.