Cofounder Equity Disputes: How to Handle Them Fairly
Equity disputes are the most dangerous conversation in a founding team, and the least often about equity. By the time someone says the split is unfair, there is normally a year of accumulated something underneath it — load, recognition, authority, or a decision about the future that nobody has made. Going straight to percentages when that is the situation produces a negotiation neither of you can win. This page is about finding out what the dispute is actually about, then running a process that produces an outcome both of you can live with afterwards. Nothing here is legal or tax advice; the instruments involved vary by jurisdiction and you need counsel for them.
What’s inside
Equity disputes are usually proxy disputes
Four things people mean when they raise equity
Why “who contributed more” is the wrong frame
A fair process, in five steps
Instruments that avoid a renegotiation
What makes it turn ugly
Where Blomma fits
Equity disputes are usually proxy disputes
Equity is the only fully quantified expression of value in a founding team, which makes it the natural place for every unquantified grievance to land. If you feel your work is not seen, there is no metric for that. There is a metric for ownership.
So when equity gets raised, the percentage is often the symptom. The signal is that something has been building for months and this is the first vocabulary available for it. Founders who respond by defending their percentage are answering a question that was not really asked, and the conversation escalates because the underlying thing remains untouched.
This is not an argument for refusing to discuss the split. Sometimes the split genuinely is wrong and needs changing. It is an argument for one question before any numbers: what changed? A split that felt right two years ago and feels wrong now changed because something in the company or the roles changed. Name that first, and the equity conversation becomes tractable. Skip it, and you are negotiating percentages with no shared account of why.
Four things people mean when they raise equity
Four distinct situations, frequently mistaken for each other.
Load has diverged and terms have not.One founder is carrying materially more — hours, scope, risk, or the unpleasant work — and nothing has moved. Genuinely the most common. Note that it is often the person carrying less who eventually raises it, out of discomfort, and often the one carrying more who says nothing for two years and then leaves.
Recognition, not ownership.The person wants their contribution acknowledged, and equity is the only currency that feels like real acknowledgement. Frequently resolvable without touching the cap table — title, scope, authority, or simply being said out loud in front of the team. Worth testing before you open a renegotiation.
A view about the future, not the past.“The split is unfair” sometimes means “I do not think you will be as important to this company over the next three years as you were in the last two.” That is a real conversation about roles, and it is almost never had directly, because saying it plainly feels brutal.
Genuine information asymmetry at founding.One founder did not understand what they agreed to — common with first-time founders, non-technical founders, or someone who joined a few months in and was called a cofounder without ever seeing a cap table. This one has a real claim attached and deserves to be taken seriously rather than defended on the technicality of what was signed.
Identify which of the four is in play. Each has a different fair resolution, and only one of them is primarily about percentages.
Why “who contributed more” is the wrong frame
The instinct in an equity dispute is to compare contributions. It is the natural frame and it reliably produces stalemate, for structural reasons.
Contribution is unmeasurable across different kinds of work. Comparing the person who built the product to the person who found the first fifty customers has no common unit, so each of you scores your own work accurately and the other’s approximately.
Both of you have complete information about your own effort and partial information about the other’s. You know every hard week you had. You did not see most of theirs. That asymmetry guarantees each of you privately believes you contributed more, and both of you are being honest.
And contribution rewards the past, whereas equity pays for the future. Founder equity vests over years because it is compensation for the work still to come. A dispute settled purely on history will feel wrong again within a year, because history keeps accumulating.
The more useful frame is forward-looking: given what this company needs over the next three years, and what each of us will actually be doing, what allocation makes both of us want to stay and do it? That question has answers. “Who has contributed more” does not.
A fair process, in five steps
The process matters more than the outcome. Founders survive an unfavourable split that was decided fairly; they rarely survive a favourable one that was decided by pressure.
One. Separate the conversations.First conversation: what changed and what is this actually about. Second conversation, days later: what to do about it. Collapsing them turns a diagnosis into a negotiation before either of you understands the situation.
Two. Get the facts on the table without interpretation.Current cap table, vesting status, what each of you actually does now versus at founding, what the company needs next. Written down, agreed as accurate, before anyone proposes anything.
Three. Each of you proposes independently, in writing.Both write what you think a fair arrangement looks like and why, then exchange. This prevents anchoring, and the gap between the two proposals is usually smaller than either of you feared — which itself lowers the temperature considerably.
Four. Consider the whole compensation surface, not just percentages.Salary, title, decision rights, board seats, vesting acceleration, a refresh grant rather than a reallocation. Many disputes that look unresolvable on percentage alone resolve easily across a wider set of variables, and a refresh grant avoids anyone handing back something they already hold.
Five. Take advice separately, then paper it properly.Each of you should be able to talk to someone who is not the other person, and the outcome needs real documentation — which is a lawyer’s job, not a handshake’s.
And give it weeks rather than an afternoon. Anything settled in one sitting under emotional pressure comes back.
Instruments that avoid a renegotiation
Worth knowing what exists, because the best resolution is often structural rather than a change of percentages. Specifics are for your counsel.
Vesting and cliffsare the standard mechanism for making equity track continued contribution rather than the founding moment. Their absence is why so many disputes exist at all.
Refresh grantsissue new equity for the next phase of work instead of moving existing ownership. Psychologically far easier, and it addresses the forward-looking question directly.
Milestone or dynamic allocationties a portion of equity to defined outcomes. Useful where the disagreement is genuinely about uncertain future contribution, and it needs careful drafting to avoid creating new disputes.
Role and authority changes with no equity movementresolve a surprising share of these, because for many founders the real grievance is scope rather than ownership.
If you are early enough that no dispute exists yet, this is the section to act on. Almost every serious equity dispute traces to an instrument that was never put in place at founding.
What makes it turn ugly
A short list, because these are avoidable.
Treating it as a negotiation to win. The counterparty is someone you need for the next five years, and a win extracted under pressure is a resentment you will pay for continuously.
Bringing in leverage — investors, board members, or the team — as pressure rather than as counsel. This converts a private disagreement into a company event, and it is very hard to reverse.
Hiding behind the documents. “You signed it” may be legally sufficient and is not an answer to a claim of unfairness. Founders who rely on it usually get the outcome and lose the relationship.
Delaying. Equity resentment is the most reliably compounding form. A conversation that would have been awkward at eighteen months becomes a lawyer at four years.
And deciding it while one of you is in a materially weaker position — mid-fundraise, post-health-event, immediately after a bad quarter. Outcomes reached under that asymmetry get relitigated later, fairly.
Where Blomma fits
This is a conversation where everyone you might normally ask is compromised. Your investors have a position on the cap table. Your team should not know. Mutual friends will take a side the moment you explain it. And your own read is distorted by having complete information about your own effort and partial information about your cofounder’s.
Blomma is an always-on AI career coach with no stake in the outcome. Use it to work out which of the four things you are actually raising — or which one your cofounder is raising, if it came to you. Use it to write your independent proposal and pressure-test whether it is forward-looking or a scorecard of the past. Use it to widen the variables beyond percentage before you open the conversation. And use it to rehearse the opening, because in this conversation more than any other the first two minutes determine whether you are solving a problem together or negotiating against each other. Where it warrants someone who has done it, bring in a human coach..
Equity disputes are survivable and common. What determines the outcome is almost never the final percentage. It is whether both of you believe the process that produced it was honest.