Cap Table Explained: Examples, Templates, and How to Build One

A cap table is a spreadsheet that shows who owns what percentage of your company. That's it. It's not complicated in theory. But in practice, cap tables become messy fast — multiple share classes, option pools, convertible notes, SAFEs, anti-dilution provisions, and secondary sales all create layers of complexity that trip up founders.

Understanding your cap table isn't optional. It determines how much of your company you actually own, how much you're giving away in each round, and what everyone's shares are worth at exit. Every founder needs to understand cap table meaning at a deep level, not just a surface one.

This guide walks through a real cap table example from founding to Series A, explains every concept along the way, and gives you templates to build your own. We'll also cover the difference between venture capital vs private equity (since cap tables work differently in each context) and the dilution math every founder should know.

Cap Table Example: From Founding to Series A

Let's build a cap table from scratch using a realistic scenario. Two co-founders start a company. They raise an angel round. Then they raise a seed round from VCs. At each stage, we'll show the exact share counts and ownership percentages.

Stage 1: Founding (Two Co-Founders, 50/50 Split)

The company issues 10,000,000 shares of common stock. Each co-founder gets 5,000,000 shares. The cap table is dead simple at this point. A co founder equity calculator would tell you the same thing: 50% each, 10M total shares. Both founders are on 4-year vesting with a 1-year cliff.

Founder A: 5,000,000 shares — 50.0%

Founder B: 5,000,000 shares — 50.0%

Total: 10,000,000 shares — 100%

Stage 2: Angel Round (10% to Angels, 10% Option Pool)

The company raises $500K from angels at a $4.5M pre-money valuation ($5M post-money). The angels get 10% of the company. The board also creates a 10% option pool for future employees. Both the angel shares and the option pool are new shares that dilute the founders.

New shares issued to angels: 1,250,000. New shares reserved for option pool: 1,250,000. Total shares outstanding: 12,500,000. Here's how startup stock dilution works in practice — the founders' share count stays the same, but the percentage drops because there are more total shares.

Founder A: 5,000,000 shares — 40.0%. Founder B: 5,000,000 shares — 40.0%. Angels: 1,250,000 shares — 10.0%. Option Pool: 1,250,000 shares — 10.0%. Total: 12,500,000 shares — 100%.

Each founder went from 50% to 40%. That's startup share dilution in action. The share dilution formula is straightforward: new ownership % = (your shares / total shares after new issuance) x 100. The founders didn't lose shares. They lost percentage because the pie got bigger.

Stage 3: Seed Round (20% to VC)

The company raises $2M at an $8M pre-money valuation ($10M post-money). The VCs get 20% of the company. New shares issued: 3,125,000 (preferred stock). Total shares: 15,625,000. The option pool is topped up to 12% as part of the deal (VCs almost always require this, and the top-up dilutes everyone except the new investors).

Founder A: 5,000,000 shares — 30.8%. Founder B: 5,000,000 shares — 30.8%. Angels: 1,250,000 shares — 7.7%. Option Pool: 1,950,000 shares — 12.0%. Seed VC: 3,125,000 shares (preferred) — 19.2%. Unallocated top-up: ~475,000 shares. Total: ~16,250,000 shares — 100%.

This is where equity dilution in startups gets real. Each founder went from 50% at founding to ~31% after the seed. They still own 5 million shares each, but the fully diluted percentage has dropped significantly. This is normal. At Series A, expect another 15-25% dilution.

Common Stock vs Preferred Stock in Your Cap Table

Common stock is what founders and employees hold. It has voting rights but no special protections. In a liquidation event, common stockholders get paid last.

Preferred stock is what investors get. It comes with liquidation preferences, anti-dilution protections, pro-rata rights, and sometimes board seats. Preferred stock is worth more than common stock on a per-share basis — which is why your 409A valuation (the fair market value of common stock) is always lower than the price per share investors paid.

Your cap table needs to show both share classes distinctly. Mixing common and preferred into one line is a mistake that creates confusion when you're modeling exit scenarios.

Fully Diluted vs Issued Shares: Which Number Matters?

Issued shares are shares that have been actually given to someone — founders, investors, employees who've exercised options. Fully diluted shares include everything: issued shares plus all shares reserved in the option pool, all shares underlying convertible notes and SAFEs, and any warrants.

Investors always think in fully diluted terms. When a VC says they want "20% of the company," they mean 20% on a fully diluted basis. This is important because the option pool (even unallocated shares) counts against your ownership. Always negotiate ownership percentages on a fully diluted basis so there are no surprises.

Option Pools: How They Work and Who They Dilute

An option pool is a block of shares reserved for future employee stock option grants. Typically 10-20% of the company. Here's the catch that trips up founders: VCs usually require the option pool to be created (or topped up) before they invest, meaning the dilution comes out of the founders' and existing shareholders' stake — not the new investor's.

This is one of the sneakiest dynamics in venture financing. A VC says the pre-money valuation is $8M. But they require a 15% option pool top-up before closing. The effective pre-money for existing shareholders is lower than $8M because the pool dilutes them before the new money comes in. Always model the cap table with the option pool included to see your real post-money ownership.

Cap Table Template: What Columns You Need

A basic cap table template needs these columns: Shareholder name, share class (common/preferred/options), number of shares, percentage ownership (fully diluted), vesting status, exercise price (for options), and date of grant or purchase. For a cap table template Excel file, create separate tabs for each funding round so you can see the progression over time.

Advanced columns to add as you grow: liquidation preference amount, conversion ratio, vesting schedule details (cliff date, monthly vesting), exercise window, and notes on any special rights. Every round should have its own section showing pre-round and post-round ownership side by side.

Spreadsheets vs Cap Table Software: When to Switch

A spreadsheet is fine until your Series A. If you have two founders, one angel round, and a small option pool, Google Sheets works. Once you have multiple share classes, convertible instruments, and more than 15-20 shareholders, spreadsheet errors become dangerous. One wrong formula can misstate someone's ownership by millions of dollars.

Cap table management software (Carta, Pulley, AngelList Stack) handles the complexity automatically — modeling scenarios, issuing stock certificates, tracking vesting, generating 409A valuations, and producing reports for investors and auditors. Most VCs will expect you to be on Carta or equivalent by Series A. The cost is typically $1,000-$5,000/year depending on the number of stakeholders.

Venture Capital vs Private Equity: How Cap Tables Differ

Since we're talking about ownership structures, it's worth clarifying the difference between venture capital vs private equity — two terms people constantly confuse. The distinction matters because cap tables look fundamentally different in each context.

Venture capitalists invest in early-stage companies in exchange for minority equity stakes (typically 10-30% per round). The founder maintains control. The cap table has many small shareholders across multiple rounds. A venture capitalist vs private equity investor takes on higher risk for potentially higher returns. VC-backed cap tables are complex because of multiple preferred share classes with different rights.

Private equity firms buy controlling stakes (often 50-100%) in mature, profitable companies, usually using significant debt (leveraged buyouts). The PE firm controls the board and operations. The cap table is simpler — often just the PE fund, management rollover equity, and a management incentive pool. PE cap tables focus on debt covenants and waterfall structures rather than multiple preferred classes.

Key Takeaways for Founders

Your cap table is the financial DNA of your company. Keep it clean, keep it accurate, and make sure you understand it at every stage. Model dilution before every round so you know exactly what you're giving up. Understand the difference between common and preferred stock. Know your fully diluted ownership number — not just your issued share count. And switch from spreadsheets to proper cap table software before things get complicated enough to cause expensive errors.

For interactive modeling, try our cap table simulator and dilution calculator. To compare cap table management platforms, see our guide to the best cap table management software.