Mobius
Intermediate

What is Cap table

Also known as: capitalization table, equity table

Cap table build-up

62%23%10%

Shareholders

Founders62%
Seed investors23%
Option pool10%
Advisors5%

The cap table is exactly this: who owns which slice, including the option pool.

Definition

A spreadsheet or ledger that shows the ownership breakdown of a company, including founders, investors, and employee options. It details all securities: common, preferred, warrants, and options.

A capitalization table that details a startup's securities, including common stock, preferred stock, warrants, options, and who owns them.

Why it matters

A cap table is essential for understanding who controls the company and how future exit proceeds will be distributed. Founders must model how future rounds, option pools, and convertible notes affect their share on a fully diluted basis before accepting new investments.

Directly related: Equity, Dilution, Option pool.

Improvement tips

  • Keep the cap table updated in a centralized, professional platform to prevent administrative errors.
  • Model potential exit scenarios to see exactly how much cash each shareholder receives at different valuations.
  • Include all unissued options and convertible agreements in a fully diluted view to see the true ownership structure.

Common mistakes

  • Tracking equity commitments in informal emails or text messages instead of formalizing them in a legal ledger.
  • Forgetting to update the cap table after employees leave or when options expire, leading to inaccurate ownership data.
  • Neglecting to show potential investors the fully diluted cap table, which can delay or ruin fundraising negotiations.

Related terms

StartupsBeginner

Equity

Ownership interest in a company, represented by shares or stock, which defines a person's share of control, risks, and financial returns. It is calculated as total assets minus total liabilities.

StartupsIntermediate

Dilution

The decrease in the ownership percentage of existing shareholders when a company issues new shares of stock. It reduces ownership share and voting power for all existing stockholders.

StartupsIntermediate

Option pool

A block of company shares set aside for future employees, advisors, and consultants to align their incentives with company growth. Allocated as common stock, it helps attract and retain top talent.

From the blog

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Early-Stage Fundraising: What Investors Need to See

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Quick check

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Frequently asked questions

Do I need to create a cap table before I start my business?
You do not need a complex table on day one, but you must record the initial ownership split between founders. Starting with a simple ledger prevents confusion and legal disputes when you officially incorporate.
When does a cap table become a critical tool for a startup?
A cap table becomes critical when you start raising money, granting options to employees, or preparing for an acquisition. Investors will always ask to see it before they agree to fund your company.
Can I manage my early cap table in a simple spreadsheet?
Yes, a spreadsheet is fine for the very early stages when you only have a few founders and investors. However, you should move it to a professional platform once you start issuing options or multiple investment notes.
How does a cap table help me plan my startup's future?
It allows you to run simulations to see how future fundraising rounds or employee option pools will affect founder ownership. This helps you make strategic decisions about valuation and hiring.
Why does my cap table matter if I am not currently raising money?
An outdated cap table can lead to administrative errors, tax compliance issues, or disputes with employees who left the company. You must keep it clean to ensure you know who holds voting rights and economic claims.
How do I clean up a messy cap table with informal equity promises?
You must formalize all verbal or email promises into legal agreements, and buy back shares from inactive partners if possible. Moving your records to a dedicated cap table platform helps automate this cleanup.
What goes wrong when a business ignores its cap table history?
You might miscalculate tax obligations or fail to recognize when options expire. This can lead to expensive legal audits and delay closing your next investment round.
How do I show potential investors my company's cap table?
You should share a fully diluted view that lists all common stock, preferred stock, warrants, outstanding options, and convertible notes. This shows investors the exact ownership breakdown they will be joining.
What is a cap table in plain language?
A cap table is a ledger or spreadsheet that lists who owns what percentage of a company. It shows the names of founders, investors, and employees, along with the number of shares they own.
Is maintaining a cap table difficult or risky?
It is not difficult if you update it every time you issue new shares or options. The risk only comes from neglecting it and relying on memory or informal emails to track ownership.
Do I need an attorney to manage my cap table?
While an attorney should draft your equity agreements, you can manage the cap table itself using affordable online software. These tools help you keep records accurate without high legal fees.
Will setting up a cap table cost my business money?
Setting it up in a basic spreadsheet is completely free. If you choose to use professional equity management software, the cost is usually very low for early-stage startups and grows only as your team expands.

Sources: Carta cap table guidelines, Glossary Pilot Personalization Interview, Alex, 2026-07-16

Last reviewed: 2026-07-16