Cap Table and Dilution Explained

01What a Cap Table Is

A capitalisation table, or cap table, is simply the ownership ledger of your company. It lists every shareholder, how many shares they hold, and what percentage that is. At the start it has two or three names; by Series A it has founders, an ESOP pool, angels and one or more funds.

The version that matters in fundraising is the fully diluted cap table. This counts all shares as if every option in the ESOP pool and every convertible had already converted into Equity Shares. Investors price the round off the fully diluted number, because that is what ownership will actually look like once the dust settles. A founder who only tracks issued shares, and forgets the option pool and outstanding convertibles, will be surprised by their real percentage.

02How Dilution Works Across Rounds

Every time you add shares, whether by creating an ESOP pool or raising a round, existing shareholders own a smaller slice of a bigger company. Founders typically give up 20 to 30 percent per round. Here is how a simple journey can look (illustrative, before fine print like pre-money pools).

Notice the founders are below 60 percent after just two rounds and an option pool, with more rounds likely to come. That is normal and not a problem if the company is worth far more each time. The danger is giving up too much, too early, so understand the band before you negotiate; the sizing logic is in how much to raise and at what valuation.

03Founder Vesting and Founder Liquidity

Founder vesting is a must. Almost every investor will require founders to earn their own shares over time rather than holding them outright from day one. A common schedule is four years with a one-year cliff, meaning you vest nothing until you complete one year, then the rest vests monthly or quarterly. It feels strange to accept restrictions on your own equity, but it is standard and it exists to protect everyone.

The reason is the co-founder who leaves in year one. Without vesting, a departing co-founder can walk away with a large chunk of the company while the others build it for the next decade. That dead equity poisons the cap table and scares future investors. Vesting means unearned shares return to the company if someone leaves early.

Here is the part founders often miss: vesting does not mean you can never take money out. When you raise, you can negotiate a small amount of founder liquidity, often around 10 percent of your shares, sold as secondary to incoming or existing investors. This lets founders take some cash off the table and ease personal financial pressure, which can actually make you a calmer, longer-term decision-maker. It is more common from Series A onwards and depends on investor appetite, but it is reasonable to ask.

04Keeping the Cap Table Clean

A messy cap table is a slow tax on your company. Too many names on the cap table is a real pain: every future round, every consent and every signature has to be chased across all of them, and a crowded table makes new investors nervous.

The most common cause is taking many small cheques from many individual angels. The fix is to pool them under a single vehicle. If you must raise from a lot of small investors, use a syndicate or trust structure, for example an AngelList-style platform, where many people invest together under one entity. On your cap table that shows up as one name, and you deal with one point of contact instead of fifty. The investors still get their economics; you keep a clean table.

Beyond that, basic hygiene goes a long way: track every option grant and every convertible so the fully diluted view is always right, clean up dead equity from departed founders or advisers, and keep the documents that back each line ready. When you reach due diligence, this is exactly what investors test; see our due diligence series and the data room guide.

05Pro-Rata and Follow-On Rights

Pro-rata rights let an existing investor put more money into future rounds to maintain their percentage as the company raises. Investors almost always ask for them, and they are a normal part of the deal.

For founders, pro-rata cuts two ways, and the second way is the useful one. When your existing investors actually follow on and invest again in the next round, it signals confidence in the business to new investors. Nothing reassures an incoming lead like seeing the people who know you best double down. The reverse is also true: if an existing investor has pro-rata rights and chooses not to use them, new investors notice, and it can raise questions. So treat your early investors as people you will ask to follow on, and keep them close and well-informed between rounds.

06Reading and Maintaining Your Cap Table

You do not need expensive software to run a cap table well in the early years. A well-built Excel sheet is perfectly fine, and it gives you the most flexibility to model rounds, option pools, convertible conversions and different valuations. Do not rush to add heavy automation or a costly platform too early; that can come later when the cap table genuinely gets complex, with many security classes and conversions.

Whatever you use, the discipline is the same: keep it accurate, current and fully diluted, update it the day anything changes, and keep one source of truth rather than three conflicting versions floating in email. Model your own scenarios with our cap table and dilution calculator, then keep your live sheet in step with it.

07Frequently Asked Questions