Legal & Equity
Vesting Cliff
Vesting Cliff is the minimum time a founder or employee must stay before they earn any of their granted equity. Leave before the cliff and you walk away with zero shares; cross it and a chunk vests at once, with the rest vesting gradually after.
Also known as: one-year cliff, equity cliff, cliff vesting
Why it matters
A cliff is the cheapest insurance a startup has against a co-founder or early hire who quits in month three but keeps a big slice of the company forever. For a solo or early-stage founder, the validation lens is blunt: equity is the only currency you have, and a dead-weight co-founder holding 30% un-vested makes you uninvestable and unsellable. The standard one-year cliff forces a real commitment test before anyone owns anything, which is exactly the kind of cheap, reversible bet you want while you are still proving the idea works. If a prospective co-founder balks at a cliff, treat that as signal, not noise: they are pricing in their own exit before you have shipped. Investors will check your cap table for cliffs on founder grants, and their absence reads as amateur hour. Build the cliff in at incorporation, when it costs nothing, instead of renegotiating it after someone has already underdelivered.
Worked example
Two co-founders sign a 4-year vesting schedule with a 1-year cliff on 4,000,000 shares each. Co-founder B leaves after 10 months, before the cliff, so they vest 0 shares and all 4,000,000 return to the company. Co-founder A stays: at month 12 they cliff-vest 1,000,000 shares (25%) in one step, then earn the remaining 3,000,000 monthly over the next 36 months.
Common mistakes
- Skipping the cliff entirely on founder grants because it feels awkward between friends. A co-founder who quits in month two then keeps a fully un-cliffed stake can sink your next raise.
- Confusing the cliff with the full vesting schedule. The cliff is just the first gate (usually 1 year); total vesting almost always runs 4 years, and a cliff with no schedule behind it is not real vesting.
- Forgetting that founder equity needs vesting too. Many first-timers vest employees but grant themselves shares outright, which removes the protection right where it matters most if the partnership breaks.
Frequently asked questions
What is a standard vesting cliff?
The market standard is a 1-year cliff inside a 4-year vesting schedule. At the 12-month mark, 25% of the grant vests in a single step, and the remaining 75% vests monthly (sometimes quarterly) over the following three years. This applies to both founders and early employees in most U.S. startups.
What happens if I leave before the vesting cliff?
You vest nothing. Every share in that grant returns to the company, even if you left one day before the cliff date. That all-or-nothing edge is the entire point: it filters out people who are not committed enough to last a year.
Vesting cliff vs vesting schedule, what is the difference?
The vesting schedule is the whole multi-year timeline over which you earn equity. The cliff is just the first gate inside that timeline, the period before which you earn zero. Think of the cliff as the qualifying lap and the schedule as the full race.
Should founders put a cliff on their own equity?
Yes, almost always. Founder equity with a 4-year schedule and 1-year cliff protects the remaining founders if a partner leaves early, and investors expect to see it. Granting yourself shares with no vesting is one of the most common and most expensive cap-table mistakes early founders make.
Can a vesting cliff be longer or shorter than one year?
It can, but deviating sends a signal. Cliffs shorter than a year are sometimes used for advisors or contractors; cliffs longer than a year are rare and can scare off good hires. For co-founders and the core team, 1 year is the default everyone understands, so a non-standard cliff invites questions you may not want to answer.
What is acceleration and how does it relate to the cliff?
Acceleration vests some or all of your un-vested equity early when a trigger fires, usually an acquisition. Single-trigger accelerates on the sale alone; double-trigger needs both a sale and you being let go afterward. It interacts with the cliff because an acquisition before your cliff can still vest shares if your terms include acceleration.
Related terms
More in Legal & Equity
Stop reading definitions. Pressure-test your idea.
Knowing the terms is the easy part. Olune runs your actual idea against live Reddit signals, competitor data, and real search demand, then gives you an honest GO / NO-GO verdict in about eight minutes. Free, no card.
Last updated 2026-06-09 · Back to the glossary