Stock Option Cashless Exercise Calculator
Cashless exercise lets employees exercise stock options without paying cash — the broker sells enough shares to cover the strike price, taxes, and fees. This calculator estimates the net shares and cash you receive in a same-day-sale or sell-to-cover scenario.
How Cashless Exercise Works
The employee instructs the broker to: 1) exercise the options, 2) immediately sell shares at market, 3) use proceeds to cover the strike price, taxes, and fees, and 4) deliver remainder (cash or remaining shares) to the employee. Eliminates the cash requirement of exercise.
Same-Day Sale vs Sell-to-Cover
Same-day sale: ALL shares are sold immediately — you receive only cash. Sell-to-cover: just enough shares are sold to cover strike, tax, and fees — you keep the remaining shares for potential long-term gain.
Tax Treatment By Option Type
NSO: bargain element (FMV − Strike) is W-2 ordinary income immediately. ISO same-day sale: becomes disqualifying disposition — same NSO treatment. ISO held 1+ year from exercise: qualifying disposition — entire gain LTCG.
Source: IRC §83 Transfer of Property for Services; IRC §422 ISO Tax Rules. Last updated: May 2026.