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Vesting & Acceleration Calculator – Inputs
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Total Grant (shares)10,000
📖 How to Use – Vesting & Acceleration Calculator
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Commencement Date (MM-DD-YYYY)9/1/2025
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Cliff (months)12
1. Set Your Vesting Inputs (on the Inputs tab, column B)
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Total Vesting (months)48
Total Grant (shares): The total number of shares/options granted.
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Cliff Percent (e.g., 0.25 for 25%)0.1
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Commencement Date: The official start date of vesting.
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Acceleration Type (None/Single/Double)Single
Cliff (months): The number of months before the first shares vest (common: 12 months).
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Acceleration % (0-1)0.5
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Change of Control Date (MM-DD-YYYY)11/1/2026
Total Vesting (months): The full vesting period (common: 48 months = 4 years).
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Termination Date (MM-DD-YYYY)11/1/2027
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Cliff Percent: Portion of total shares released at the cliff (e.g., 0.25 = 25%).
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How it works
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This schedule assumes standard monthly vesting with a cliff. On the cliff month, the cliff percentage of total shares vest at once; after that, the remaining shares vest in equal monthly installments for the remaining months.
2. Set Acceleration Inputs (optional)
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Acceleration Type:
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You can edit any value in column B, then check the Schedule tab.
None → No acceleration.
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Single → Acceleration triggered at a Change of Control (CoC).
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CreditsYousef Emad
Double → Acceleration triggered if termination occurs after a CoC.
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LinkedIn
https://www.linkedin.com/in/yousefemad/
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Substack
https://thestartupedge.substack.com/
Acceleration % (0–1): The fraction of unvested shares that accelerate (1.0 = 100%).
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Acceleration Event Date: Enter the date when the acceleration is triggered (e.g., acquisition date). Leave blank if no event.
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3. Read the Schedule (see Schedule tab)
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Each row corresponds to a vesting month (Period #). Columns show:
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Vest Date: When vesting occurs.
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Is Cliff Month?: Indicates whether this period is the cliff month.
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Shares Vesting (this period): Number of shares vesting in that month.
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Cumulative Vested: Total shares vested up to that date.
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Remaining: Shares not yet vested.
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% Vested: Progress toward full vesting.
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Accelerated (if triggered): Extra shares vested instantly due to acceleration.
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Total Vested incl. Acceleration: Combined vesting (normal + accelerated).
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4. Check the Summary (top-right of Schedule tab)
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Quick snapshot of:
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Total grant
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Cliff date & shares
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Monthly post-cliff vesting
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Acceleration type, %, and event date
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Accelerated shares (if applicable)
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5. Customize
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All values in Inputs → Column B are editable.
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The schedule recalculates automatically.
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You can extend the schedule rows if vesting lasts longer than 240 months.
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