Vesting Cliff
A vesting cliff is a threshold period — typically one year — before which no equity vests, protecting companies from early team departures.
What Is a Vesting Cliff?
A vesting cliff is a defined waiting period at the beginning of an equity vesting schedule during which none of the granted equity vests. Only after the cliff period is completed does any equity become owned — and at that moment, the entire cliff portion vests at once.
The most common cliff in the startup world is one year (12 months). During this period, a founder or employee accumulates no vested shares. On day 365, 25% of the total grant vests simultaneously. From that point forward, the remaining equity typically vests in monthly increments over the following three years.
The cliff is not a punishment — it is a mutual protection mechanism. It ensures that equity does not go to people who leave the company in its most vulnerable early period, while still rewarding those who commit and stay.
A Concrete Example
An early engineer joins a startup and receives a grant of 10,000 shares under a standard 4-year vesting schedule with a 1-year cliff.
| Date | Event | Shares Vested | Total Vested |
|---|---|---|---|
| Day 1 (joining) | Grant begins | 0 | 0 |
| Day 90 | Still in cliff | 0 | 0 |
| Day 180 | Still in cliff | 0 | 0 |
| Day 364 | One day before cliff | 0 | 0 |
| Day 365 | Cliff reached | 2,500 (25%) | 2,500 |
| Day 396 (month 13) | First monthly vest | ~208 | ~2,708 |
| Day 730 (24 months) | Two years total | ~208/month | ~5,000 |
| Day 1,460 (48 months) | Fully vested | ~208 | 10,000 |
The key number: on day 365, exactly 2,500 shares vest. This is calculated as 10,000 ÷ 4 years = 2,500 shares for the first year. After that, approximately 208 shares vest each month for 36 months (2,500 × 3 years = 7,500 remaining shares ÷ 36 months).
Why Cliffs Protect Companies
Protection Against Early Departures
The first year of a startup is the period of highest uncertainty and highest team turnover. Without a cliff, every person who receives equity and leaves within their first year would walk away with fractional shares proportional to their tenure — even if they contributed little and their departure caused significant disruption.
With a 1-year cliff, if an employee or co-founder leaves before month 12 for any reason, they take nothing. The forfeited shares return to the option pool for future grants to people who will actually build the company.
Signaling Commitment
From an investor’s perspective, knowing that all equity-bearing team members are subject to a cliff signals that the equity structure is professionally managed. Investors are understandably concerned about cap table complexity and team stability — a well-designed vesting schedule with a cliff addresses both.
Cliff for Co-Founders
The cliff is especially important — and sometimes emotionally charged — among co-founders. A co-founder departure in the first year, without a cliff, could leave the remaining founders building a company where an ex-co-founder owns a substantial stake and contributes nothing.
Scenario without a cliff: Two co-founders each hold 40% of the company with no vesting. One leaves at month 8 after a falling-out. The departing founder retains their full 40%. The remaining founder now builds the company solo while a passive ex-co-founder holds a large equity stake — a situation that is deeply unattractive to investors and difficult to fix.
Scenario with a cliff: Under the same circumstances but with a 1-year cliff, the departing co-founder at month 8 vests zero shares. The company can reassign that equity, the cap table is clean, and the remaining founder retains full ownership.
Most seasoned startup advisors and investors strongly recommend that co-founders implement mutual vesting with a cliff from day one, before any outside money comes in. Establishing this at formation is far easier than trying to retrofit it later.
The Cliff from an Investor’s Perspective
When a VC reviews a startup before investing, one of the first things they examine is whether the founders are on vesting. If founders are not subject to a cliff and vesting schedule, investors will typically require it as a precondition of the investment.
From the investor’s standpoint, the cliff protects their capital. An investor who puts $2M into a company needs to know that the people building that company are economically incentivized to stay. If a founder can leave the day after the round closes with their full equity stake, the investor’s capital is at serious risk.
What Happens Before and After the Cliff
Before the Cliff (Months 0–11)
- No equity vests, regardless of how much work has been done
- If the person is terminated or resigns, they leave with zero equity
- The full grant remains unvested and subject to potential forfeiture
After the Cliff (Month 12+)
- The cliff tranche vests (typically 25% of the total grant)
- Monthly vesting begins automatically
- If the person leaves after the cliff, they keep all shares vested to date and forfeit only the unvested remainder
No-Cliff Scenarios
Cliffs are standard but not universal. Some situations where a cliff may be reduced or waived:
- Senior executive hires with negotiating leverage: A seasoned CFO or CTO joining a Series B company may negotiate a shorter cliff (6 months) or no cliff at all, particularly if they bring critical assets (a customer network, a specific patent, an existing team)
- Re-grants to long-tenured employees: A 4-year employee receiving a refresh grant may not need a cliff on the new grant since they have already demonstrated commitment
- Part-time or advisory roles: Advisors often receive equity on a 2-year monthly vesting schedule with no cliff, given the part-time nature of the engagement
Common Misconceptions
- “The cliff means I have to wait a year for anything”: Correct — but the entire first-year tranche vests at once on day 365, not in installments starting on month 13.
- “The cliff resets if I get promoted”: Promotion typically does not reset your existing grant. If you receive an additional grant upon promotion, that new grant may have its own cliff.
- “Cliffs only apply to employees”: Founders should absolutely be on vesting with a cliff, particularly if outside investors are involved. It protects all stakeholders equally.
Key Takeaway
The vesting cliff — most commonly set at one year — is the single most important protection mechanism in an equity grant. It ensures that equity goes only to people who make a lasting commitment to the company, and it protects the cap table from being permanently burdened by short-term contributors. Founders should establish mutual vesting with a cliff at company formation, and investors will typically require it if they do not find it in place. On day 365, the cliff vests in full — a meaningful milestone that every equity holder should understand and anticipate from the moment they sign their grant agreement.