Cap Table Builder

Build a simple cap table

A cap table records who owns what share of a company, and keeping it clear is essential from the start. This tool builds a simple cap table from holders and share counts and calculates ownership percentages, so ownership is transparent.

Why a clear cap table matters

A cap table is the record of ownership, listing each holder and their shares, from which each one’s percentage is calculated. It sounds simple, but it becomes the single source of truth for who owns the company, and errors or vagueness here cause real disputes and complicate every future fundraise. Building it clearly from the outset, with each holder’s shares and resulting percentage, keeps ownership transparent and makes the effect of new shares easy to see. Founders who neglect the cap table often regret it when a round or an exit forces the details to be reconstructed.

A planning estimate

This is an estimate for planning from the figures you enter, not financial or business advice. Real outcomes depend on factors beyond any single calculation, so treat the result as a guide. It runs entirely in your browser, so your figures are never uploaded and stay on your own machine, which matters for business numbers you would not want to share.

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