Angel Investors Network
    Glossary

    Cliff Period

    A cliff period is the initial phase of a vesting schedule during which an employee or investor receives no equity or compensation, despite employment or investment activity. After this period ends, vesting typically accelerates or begins in earnest, rewarding continued commitment.

    Cliff Period Definition

    A cliff period is the initial phase of a vesting schedule during which an employee, founder, or investor cannot access any portion of their equity grant, even if they meet employment milestones. Once this period concludes, vesting typically accelerates, allowing shares to vest on a regular schedule (monthly or quarterly).

    Why the Cliff Period Matters for Angel Investors

    For angel investors and startups, cliff periods serve several critical functions:

    • Retention incentive: Employees remain committed because they stand to lose all unvested equity if they leave before the cliff ends
    • Risk mitigation: Startups protect against early departures that could disrupt company operations or culture
    • Alignment: Team members and investors share long-term interests in company success
    • Valuation control: Founders maintain clearer cap table management during early scaling phases

    Common Cliff Period Examples

    A typical scenario: An employee receives a 4-year vesting schedule with a 1-year cliff. During year one, zero shares vest regardless of performance. At the one-year mark, 25% of shares suddenly vest (one year's worth). The remaining 75% then vests monthly over the next three years.

    For angel investors, cliff periods in employee equity packages affect overall dilution and team retention, directly impacting investment returns.

    Understanding cliff periods requires familiarity with related terms:

    Best Practices

    Angel investors should review cliff periods when evaluating startup cap tables. Standard cliff periods range from 6 months to 2 years, with 1 year being most common in venture-backed companies. Longer cliffs can signal either conservative founder protection or potential difficulty attracting talent. Transparency about vesting terms demonstrates professional startup practices and reduces future disputes.