Fire a cofounder only after you have named the problem to their face, tried a reset with a review date, and found that they have stopped committing, not that they lack a skill. Even then, settle vesting, board approval and the paperwork with a lawyer before the conversation. Move too fast and you lose a builder you could have kept. Move too slowly and the company drains.
You are not unusual. Harvard Business School's Noam Wasserman attributes 65% of high-potential startup failures to conflict among cofounders.
What are the signs it might be time?
No single sign is enough. A pattern that continues after you have raised it is.
- The work has stopped, and you route around your co-founder instead of through them.
- You double-check what they tell you, or hear about their decisions afterwards.
- You disagree on what the company is for, not on tactics.
- The team brings problems to you and avoids them.
- You feel relief when they are away.
If several are familiar, read the signs a cofounder relationship is failing first.
What should you check before you decide?
Work through these five questions in order. If you cannot answer yes to the first two, you are not at a firing decision. You are at a conversation you have been avoiding.
- Have you said it plainly? What is not working, what it costs, what has to change. Said to them, not to a friend.
- Have you tried a real reset? A set period with clear expectations and a review date. Elad Gil's advice is direct: do not move to remove someone until you have had a few frank, non-emotional conversations.
- Is it capability or commitment? This decides almost everything.
- Have you looked at your own part? Strained partnerships are rarely one-sided. A neutral third party can help you see yours.
- Would the company be clearly better in six months without them? Better for the business, not just calmer for you.
Our cofounder conflict resolution guide covers how to run that reset.
Is it a capability or a commitment problem?
Most "cofounder not working out" cases are one of the two, and they need different answers.
| Capability problem | Commitment problem | |
|---|---|---|
| What it looks like | Working hard, falling short of what the company now needs | Able to do the work, but checked out |
| Common cause | The company outgrew the role | Lost belief, other priorities, resentment |
| Usually fixed by | A role change, narrower scope, support | Rarely fixed; a reset confirms it |
| First move | Reshape the job | Ask directly whether they want to stay |
The person who was right for the first ten hires is not always right to lead fifty people, and that is not a character flaw. Belief that has gone is much harder to bring back.
What are the alternatives to firing?
Removal is one option among several:
- Change the role. Move them into the seat where they are strong and hire for the rest. They keep their equity and their knowledge stays.
- Reduce scope and future equity. If someone steps back, future equity can reflect it. This needs legal and tax advice.
- Agree a break. Exhaustion can look like checking out. A real break with a return plan can save the partnership.
How do vesting and the law affect removing a cofounder?
A co-founder is usually a shareholder and often a director, so removing them is a company action with real limits. Vesting makes it survivable. As WilmerHale explains, founder shares usually vest over time to protect the company when someone leaves early. On a standard schedule, vesting stops when they leave: they keep what has vested and the company can buy back the rest. Without vesting, a co-founder who leaves in month three may keep their whole grant. If you have none, read how a cofounder vesting schedule works and fix it now.
Before you act, review with a lawyer:
- The shareholders' agreement, bylaws and any voting agreements
- Vesting and stock purchase agreements, including acceleration terms
- Their employment or consulting agreement
- What the board must approve to remove a director or buy back shares
- Whether you are removing them "for cause" or "without cause", which changes what they keep
For buyouts and what a departing founder keeps, see what happens to equity when a cofounder leaves.
How do you do it humanely?
Agree the decision with your other co-founders and, where it fits, your lead investor before you talk. Then:
- Tell them in person. Say what is happening and why, once. Do not reargue every grievance.
- Open with a fair offer: severance, clean handling of vested equity and an honest reference.
- Agree together how you will tell the team, customers and investors.
- Close everything at once: board resignation, share buyback, system access and final documents, so nothing lingers to reopen later.
Frequently asked questions
- Can you fire a cofounder?
- Yes, but it is a company action, not a personal one. A co-founder is usually a shareholder and a director, and sometimes an employee, so removing them touches the board, the cap table and any employment agreement. You need board authority and a lawyer before you act, because getting it wrong exposes the company to claims.
- What happens to a fired cofounder's equity?
- It depends on their vesting terms. On a standard schedule, vesting stops on their last day: they keep what has vested and the company can buy back the rest. Without a vesting agreement, they may keep their full grant however little they contributed, which is why founders should put vesting in place from day one.
- How do you remove a cofounder legally?
- Follow your documents. With a lawyer, review the shareholders' agreement, bylaws, vesting and stock purchase agreements, and what the board must approve. End any employment agreement on its own terms, then handle the board seat and the share buyback separately. Have the paperwork drafted before the conversation, not after it.
- Should I try to fix things before firing my cofounder?
- Almost always. Have a few frank, calm conversations first, then agree a reset period with clear expectations and a review date. Many partnerships end because founders avoided the hard conversation, not because the problem could not be fixed. Removal should come after a genuine attempt at repair, never instead of one.
- What is the difference between a capability and a commitment problem?
- A capability problem means your co-founder is trying but cannot do the job the company now needs. A commitment problem means they could do the job but have checked out. Capability problems often get solved with a role change. Commitment problems rarely do, and they are the more common reason a separation becomes necessary.