Cap Table

What Is a Cap Table?

A capitalization table (cap table) is the single source of truth for equity ownership in a startup. It is a structured record that details every shareholder, the type and number of shares they hold, and the percentage of the company each represents. A well-maintained cap table includes founders, investors from every round, employees with stock options, advisors, and any outstanding convertible instruments like SAFEs or convertible notes.

At its simplest, a cap table answers one question: who owns what percentage of the company? But as a startup grows and raises multiple rounds, the cap table becomes increasingly complex, tracking multiple share classes, vesting schedules, liquidation preferences, and the dilutive impact of option pools.

Why a Clean Cap Table Is Critical

Investors will scrutinise your cap table before writing a check. They need to see current ownership breakdown, understand liquidation preferences and investor rights, model their post-investment ownership percentage, and verify there are no red flags such as messy historical grants, surprise equity holders, or unresolved disputes.

A messy cap table is one of the most common causes of deal delays and one of the most avoidable. Acquirers during due diligence also demand a clean cap table — an unclear equity structure can kill an acquisition that would otherwise close.

Key Components of a Cap Table

Share Classes Most venture-backed startups issue two primary classes of shares: common stock (held by founders and employees) and preferred stock (held by investors). Preferred shares carry special rights including liquidation preferences, anti-dilution protections, and voting rights not available to common shareholders. Each round of investment typically creates a new series of preferred stock (Seed Preferred, Series A Preferred, etc.).

Fully Diluted Share Count A critical concept is the fully diluted share count — the total number of shares outstanding when all options, warrants, convertible notes, and SAFEs are assumed to have converted. Always calculate ownership on a fully diluted basis, as this is what investors use and what governs payouts at exit. Calculating ownership based only on outstanding shares will give you a misleadingly high percentage.

Option Pool The option pool (ESOP) is a block of shares reserved for future equity grants to employees, advisors, and consultants. A typical option pool for early-stage startups ranges from 10–20% of fully diluted shares. This pool is usually refreshed at each funding round, and investors frequently require the pool to be established or expanded before their investment (pre-money), which dilutes existing shareholders rather than the new investor.

Vesting Schedules All equity grants should include a vesting schedule — the timeline over which a shareholder earns their shares. The industry standard is a 4-year vesting schedule with a 1-year cliff, meaning no shares vest in the first year, and then 25% vest at the 12-month mark, followed by monthly vesting for the remaining 3 years. Unvested shares are forfeited when a person leaves the company.

Convertible Instruments SAFEs and convertible notes are common at pre-seed and seed stages. These instruments do not immediately appear as equity on the cap table — they are pending conversions. However, they must be tracked and modelled because they will convert into equity (usually with a discount or at a valuation cap) at the next priced round, diluting all existing shareholders.

Cap Table Math: A Simple Example

A startup is founded with two co-founders splitting equity 60/40. Before raising:

• Founder A: 6,000,000 shares (60%)
• Founder B: 4,000,000 shares (40%)

Before a Seed round, a 10% option pool is created pre-money:

• Founder A: 6,000,000 shares (54%)
• Founder B: 4,000,000 shares (36%)
• Option Pool: 1,111,111 shares (10%)
• Total: 11,111,111 shares

A Seed investor invests $500K at a $4.5M pre-money valuation (10% post-money):

• Founder A: 6,000,000 shares (48.6%)
• Founder B: 4,000,000 shares (32.4%)
• Option Pool: 1,111,111 shares (9.0%)
• Seed Investor: 1,234,568 shares (10.0%)
• Total: 12,345,679 shares

This is why option pool timing matters — the pool was created pre-money, diluting only the founders.

Common Cap Table Mistakes

Three mistakes cause the most damage: (1) not tracking on a fully diluted basis, which gives a false picture of ownership; (2) failing to update the cap table after every equity event including informal grants, conversions, and exercises; (3) creating a messy historical record by over-granting equity to early advisors with no vesting, which creates equity overhang and deters future investors.

Cap Table Software

For early-stage startups with just founders, a spreadsheet is sufficient. Once you raise external capital, switch to dedicated software. Carta is the industry standard and free for up to 25 stakeholders. Pulley and AngelList Stack are strong alternatives. The investment in proper software pays for itself in avoided legal fees and investor confidence.