What Is Founder Vesting?
It's the rule that stops a co-founder who leaves early from walking away with a big slice of a company they barely helped build.
Founder vesting ties equity to time spent at the company instead of handing it all over immediately. A typical structure spreads vesting over three to four years with a one-year cliff, so a founder who leaves early forfeits the unvested portion back to the company or remaining founders.
Vesting is also one of the parts of a founders' agreement that people are most tempted to skip when everyone is still on good terms and the paperwork feels like an afterthought. It tends to be the part they regret skipping most, once the founding team actually changes.
The Problem Vesting Is Built to Solve
Picture three co-founders each taking an equal 33 percent stake on day one, fully theirs, no conditions attached. Eight months in, one of them leaves, maybe for a job offer, maybe for personal reasons. That person still owns a third of the company. The other two keep grinding for years while a former co-founder holds a meaningful stake and does nothing more to earn it. This plays out more often than people expect, and it is exactly what vesting exists to prevent.
How Vesting Actually Works
Vesting ties a founder's equity to time spent at the company instead of handing it all over immediately. A typical structure spreads vesting over three to four years. Many agreements also build in a one-year "cliff": no equity vests at all until the founder has stuck around for a full year. After that cliff, the rest of the equity usually starts vesting monthly or quarterly. If a founder leaves before their shares have vested, the unvested portion comes back to the company or the remaining founders, usually at a nominal price set out in the agreement itself.
Why Set This Up Even Before You Have Investors
You do not need outside investors in the picture to justify doing this properly. A vesting schedule with a cliff is standard practice among serious startups, and investors increasingly expect to see it in place before they write a check. Getting it in writing early, while everyone is still getting along, is far easier than trying to negotiate it after someone has already decided to walk away. Once it is written down, everyone knows exactly what happens to unvested shares if a founder leaves, instead of that becoming an argument at the worst possible moment.
Quick glossary
- Vesting
- The process of earning your equity gradually over time instead of receiving all of it at once.
- Cliff
- An initial period, often one year, during which none of a founder's equity vests at all.
- Equity
- A founder's ownership stake in the company, usually expressed as a percentage of total shares.
- Founders' agreement
- The document where co-founders record how equity, vesting, and other key terms actually work.
- Unvested shares
- The portion of equity a founder has not yet earned, which is returned to the company if they leave early.
Setting this up correctly means getting it documented, not just discussed. Vaksy can connect you with a verified advocate on the platform who can draft or review a vesting schedule built around your actual founding team.
For the full legal detail: Starting a Company With a Co-Founder? Do Not Skip the Founders' Agreement.
Questions people ask
What is founder vesting and how does it work?
Vesting ties a founder's equity to time spent at the company instead of handing it all over immediately. A typical structure spreads vesting over three to four years with a one-year cliff, after which the remaining equity usually vests monthly or quarterly.
What is a founder vesting agreement and how does it work?
It's the founders' agreement, the document where co-founders record how equity, vesting, and other key terms actually work, including what happens to unvested shares if someone leaves. Getting it in writing early is easier than negotiating it after someone has already decided to walk away.