The cliff is misunderstood
A founder leaves before the cliff and assumes they still own the same stake. The company discovers the agreement language, expectations, and personal story do not match.
Glossary
Founder Vesting
Founder vesting ties founder equity to continued contribution so ownership matches the work still being done.
Plain definition
What it means.
Founder vesting is the structure that decides when founders fully earn their equity. It usually uses a vesting schedule, a cliff, and rules for what happens if a founder leaves early.
The point is simple: the cap table should reflect commitment, contribution, and time. Without vesting, a founder can leave early and still hold equity that the remaining team must work around for years.
Founder vesting protects the company from a cap table that freezes the first conversation forever.
What goes wrong
The failure pattern this term exists to prevent.
Equal split becomes unequal effort
Two founders split 50/50 on day one. One carries the company for years while the other contribution fades. The cap table keeps pretending nothing changed.
The next financing exposes the issue
Investors ask why a non-operating founder owns a material stake. The answer becomes a pricing problem.
The company negotiates from weakness
The remaining founder needs the shares cleaned up. The absent founder knows it. What should have been a schedule becomes a bargaining point.
Founder questions
The questions people actually ask.
What is founder vesting?
Founder vesting is an equity schedule that determines when founders earn their shares over time or through continued contribution.
What is a founder vesting cliff?
A cliff is the first period before equity starts vesting. If a founder leaves before the cliff, the unvested equity is usually subject to return or repurchase under the agreement.
Should co-founders have vesting?
Usually yes. Vesting protects the company, the remaining founders, future hires, and investors if someone leaves early.
What happens if there is no founder vesting?
The cap table can lock in ownership that no longer matches contribution. Fixing that later usually means negotiation, dilution, buyout, or conflict.
Bigger picture
Where this fits in the structure.
Related structure
Reverse Vesting
Reverse vesting is one common structure used to make founder vesting work after shares are issued upfront.
Related structure Deadlock ClauseDeadlock clauses matter when equal founder ownership turns into equal blocking power.
Related structure How Should Equity Between Founders Be StructuredHow Should Equity Between Founders Be Structured covers the split before vesting tries to protect it.
Related reading
Read the operating version next.
Related reading
How Should Equity Between Founders Be Structured?
The equity split guide founders should read before the vesting schedule is drafted.
Related readingPartnership Agreements That Hold
The agreement clauses that make founder departure survivable.
Related readingShould I Buy Out My Co-Founder?
The later-stage version of the same cap-table problem.
If this term is live in a decision you are carrying, that is a different conversation.
Bring the document, the decision it is blocking, and the people whose authority is unclear.