A vesting schedule is a predetermined timeline that specifies when founders, employees, or other equity holders gain full legal ownership of their allocated shares or stock options. Most commonly, startups implement a four-year vesting period with a one-year cliff, meaning no equity vests during the first year, but 25% vests immediately after the first anniversary, followed by monthly or quarterly vesting for the remaining 36 months.
The mechanism protects both companies and investors from scenarios where a key team member departs early while retaining significant equity. Without vesting, a co-founder who leaves after six months could walk away with 30% of the company, creating misaligned incentives and diluting value for those who remain committed to building the business.
Why It Matters
Investors view vesting schedules as fundamental risk management tools. A startup with unvested founder equity demonstrates that key team members have skin in the game and cannot easily abandon the venture with disproportionate ownership. Most venture capital firms require four-year vesting schedules with one-year cliffs as a standard investment term, and companies without proper vesting face significant challenges raising institutional capital. The structure also helps startups attract talent by ensuring equity compensation rewards long-term commitment rather than short-term participation.
Example
Sarah and two co-founders launch a SaaS startup, each receiving 30% equity with standard four-year vesting and a one-year cliff. After ten months, one co-founder accepts a job offer elsewhere. Because he leaves before the cliff, he forfeits his entire 30% stake, which returns to the company pool. Sarah continues building the company, and after two years, she has vested 50% of her shares (the cliff year plus 12 additional months). When the company raises a Series A after three years, investors see that Sarah has vested 75% of her equity, demonstrating her commitment while still having 25% unvested as an incentive to stay through the full four-year period.
Related Terms
Equity Dilution, Employee Stock Option Pool, Founder Agreements