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Vesting Date Calculator

Find your cliff date, full vesting date, and current vested percentage.

Cliff date

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Fully vested

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Vested today

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What this calculator does

This calculator models a standard cliff-plus-linear vesting schedule — common for employee equity grants — showing your cliff date, the date you're fully vested, and roughly what percentage has vested as of today.

Worked example

A grant starting September 2, 2024 with a 4-year total vesting period and a1-year cliff has a cliff date of September 2, 2025 (25% vests), full vesting on September 2, 2028, and roughly 50% vested by September 2, 2026.

Common mistakes

  • Assuming vesting starts on your offer date. The vesting start date is usually your official start date or grant date, which can differ from your offer or signing date.
  • Forgetting the cliff is all-or-nothing. Leaving even one day before the cliff date typically forfeits 100% of unvested equity — there's no partial credit before the cliff.
  • Not checking for acceleration clauses. Some agreements vest shares faster upon acquisition, IPO, or termination without cause — this calculator only models the standard time-based schedule.

Frequently asked questions

What is a vesting cliff?+

A cliff is a period at the start of a vesting schedule during which you earn 0% — typically 1 year for a standard 4-year plan. If you leave before the cliff date, you forfeit all unvested equity. Immediately after the cliff, a large chunk (often 25%) vests at once.

How is vesting calculated after the cliff?+

Most plans vest the remainder in equal monthly (or sometimes quarterly) installments over the rest of the total vesting period. This calculator assumes standard monthly linear vesting after the cliff.

What's a typical vesting schedule?+

A common structure is a 4-year total vesting period with a 1-year cliff: 25% vests at the 1-year mark, then the remaining 75% vests monthly over the next 3 years.

Does this calculator account for acceleration clauses?+

No — some agreements include acceleration triggers (e.g., on acquisition) that vest shares early. This calculator only projects the standard time-based schedule.

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