Common cap table mistakes with early hires and advisors

Cap table problems rarely begin as dramatic, obviously risky decisions. They almost always begin as small, entirely reasonable-sounding choices made quickly in the moment, that compound quietly and become genuinely serious by the time a diligent investor examines the cap table closely for the first time.

Verbal equity promises to early hires or advisors. "You'll get some equity once we're a bit further along" feels generous, low-risk, and perfectly reasonable to say in an early, informal conversation. Without a signed agreement and a defined vesting schedule attached to it, that same promise becomes a genuine liability the moment the relevant person leaves the company, gets replaced by someone else in a similar role, or simply disagrees in hindsight about what "some" was ever actually meant to mean. Verbal equity commitments feel harmless precisely because nothing bad happens immediately, the cost only becomes visible later, often during exactly the kind of diligence process where discovering it is most damaging.

No vesting schedule on founder or early equity. Equity granted without any vesting attached means a co-founder or an early hire who leaves the company after two months keeps their entire granted stake, permanently, regardless of how little they actually contributed. Standard four-year vesting with a one-year cliff exists specifically to prevent exactly this outcome, ensuring equity is earned progressively through continued contribution rather than fully granted upfront. Its absence on any meaningful equity grant is reliably one of the very first things a diligent investor checks, and finding it missing raises immediate, legitimate questions about what else in the cap table hasn't been handled carefully.

Advisor equity that's too generous, granted too early, for too little clearly defined contribution. Advisor grants in the roughly 0.1% to 1% range, vesting over one to two years, and tied to specific, mutually agreed involvement (a defined number of hours, specific introductions, ongoing advisory sessions) represent reasonable, standard practice. Meaningfully larger grants extended for vague, undefined "advisory support," with no specific scope ever agreed in writing, tend to raise real questions later during diligence about whether that equity was genuinely earned through real, verifiable contribution, or simply handed out generously in an early moment of enthusiasm without appropriate structure.

Informal agreements that were discussed once and never actually documented. Anything agreed verbally and never formalized in writing, an equity split between co-founders discussed once early on and never revisited in a signed document, a handshake commitment to a future advisor that was never followed up with paperwork, needs to become a real, properly signed document as early as possible. The alternative is that it surfaces as an active, unresolved dispute precisely during a fundraising process or diligence review, which is the single worst possible moment for it to become a problem requiring resolution.

Why these individually small issues become a real, compounding problem together. No single one of these mistakes typically sinks a round entirely on its own. But a cap table carrying several of these patterns simultaneously, some undocumented verbal promises, some unvested early equity, some loosely-scoped advisor grants, reads to an experienced investor as a company that hasn't consistently kept its own foundational paperwork in order. That impression is a real, legitimate credibility concern, and it's also one of the most straightforwardly avoidable problems on this entire list, solvable with proper documentation done early and consistently, rather than reconstructed hastily and defensively once a diligent investor starts asking specific, pointed questions about it.

A practical fix that costs almost nothing. Before any equity conversation, even an informal one, write a single paragraph capturing what was actually agreed, amount, vesting, and any conditions, and send it in writing to the other person the same day, even before a formal agreement is drafted. This doesn't replace real legal documentation, but it creates a contemporaneous record of what was actually discussed, which meaningfully reduces the odds of a later disagreement about what was originally intended.

A cap table review worth doing before any fundraising conversation starts. Sit down with whatever cap table management tool you use and trace every single grant back to its signed source document. Any grant where you can't immediately locate the underlying agreement is a flag to resolve now, quietly and on your own timeline, rather than discovering the gap when an investor's lawyer asks for the same documentation during live diligence.