A classic equity split calculator asks a handful of questions — idea origination, time commitment, capital invested — and spits out a percentage locked in forever. The problem is that startups aren't static: contributions shift, roles evolve, and the person who was full-time in month one may go part-time by month six. A one-time calculation cannot capture any of that reality.
Everything corporate in one place — no spreadsheets.
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Score each cofounder on weighted factors — the split updates live and always totals 100%.
Suggested split
A fixed split today can be unfair tomorrow.
Contributions shift over the first months. With Equafy you can run this split dynamically as work happens, then freeze it to a static cap table the moment an investor arrives.
Everything corporate in one place — no spreadsheets.
Set up your company's cap table in minutes.
Most free equity calculators on the internet are scoring tools. They weight factors like "who had the idea," "who has the most relevant experience," or "who is contributing cash" and translate those weights into percentages. The output is inherently subjective — change one slider and the result changes. Worse, there is no mechanism to update the split as reality diverges from the initial assumptions.
When founders lock in equity at incorporation, they are making a bet on the future based on current intentions. If one cofounder leaves after six months, or a third joins a year later with a different level of commitment, a static split has no built-in answer. Founders end up in manual renegotiations — which often turn adversarial — or stick with an arrangement everyone quietly knows is unfair.
Dynamic equity models — the most well-known is the Slicing Pie model — replace the one-time calculation with a continuous one. Equity accumulates from logged contributions: hours worked, money invested, resources provided. The split at any moment reflects actual work done, not work promised. Equafy implements this natively, alongside fixed equity for cases where you want guaranteed allocations.
Not every founder wants a fully dynamic model. Equafy lets teams combine fixed equity (locked percentages for cofounders who prefer certainty), dynamic equity (contribution-tracked shares for everyone else), and a reserved pool (shares held back for future hires or investors). You configure which model applies to which member, and the platform handles the math from there.
A quick calculator is useful as a conversation starter before incorporation. Once you are building a real company, you need a system that tracks contributions over time, handles vesting, manages convertible instruments like SAFEs, and can simulate future investment rounds. That is what Equafy is built for.
They are useful for rough estimates but are inherently subjective. The weights assigned to different factors are arbitrary, and the result does not update when circumstances change.
Dynamic equity models like Slicing Pie track contributions over time and calculate equity continuously. Equafy implements these models with contribution logging and automatic share calculation.
Yes. Equafy supports hybrid models where some founders have fixed equity allocations and others participate in a dynamic pool based on ongoing contributions.
Many teams lock splits at a fundraise or a predetermined milestone. Until then, a dynamic model lets equity adjust as the team's contribution landscape becomes clearer.
Equafy goes further: it tracks contributions, applies configurable multipliers, handles vesting and SAFEs, and simulates investment rounds — all in one platform.
Equafy turns your founding team's actual work into fair, auditable equity splits — no spreadsheet required.
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