Equity & Tax

Post-Termination Option Exercise-Window Decision

You've left your company. The clock is running on your vested options — typically 90 days. Model exercise cost, AMT exposure, and expected value across exit scenarios before the window closes.

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Your Options

Last 409A appraisal or FMV per your option agreement
Default: 90 days (IRC §422). Some companies grant extended windows — check your agreement.
Cash you're willing to put at risk

Exit Scenarios

Company goes to zero / below strike
Probability Weights (%)
25%
55%
20%
Probabilities sum100%
Recommendation
—
—
—
Total exercise cost
—
Spread at current FMV
—
EV of exercise & hold
—
Max shares w/in cash limit

Scenario Analysis

ScenarioExit $/shPGross ProceedsNet (after exercise cost)EV Contribution

Next Steps

🧮
ISO-AMT Calculator
Full AMT exposure calculation for ISO exercise (AL-116)
 📊
Equity Comp Analyzer
Model your full equity package value (AL-33)

Downstream: ISO-AMT Calculator (AL-116)