Cap Table Basics

Your cap table is the single source of truth for who owns what in your company.

It sounds simple. In practice, most first-time founders do not understand how it works until they are already in trouble. They give away too much equity too early, miscalculate dilution, or get surprised by how an options pool affects their ownership.

This guide covers the fundamentals every pre-seed and seed founder needs to know: what a cap table is, how dilution works, what an options pool does to your ownership, and how to avoid the mistakes that cost founders real equity.

TL;DR

• A cap table tracks who owns what percentage of your company
• Ownership changes every time you issue new shares (to investors, employees, or advisors)
• Dilution is not the enemy. Bad dilution math is
• The options pool comes out of founder equity in most pre-money valuations
• Understanding fully diluted ownership is essential before signing any term sheet
• Keep your cap table clean, updated, and modeled for future rounds

What Is a Cap Table?

A capitalization table (cap table) is a record of all the equity ownership in your company.

At its simplest, it shows:

• Who owns shares
• What type of shares they own (common, preferred, options, SAFEs, etc.)
• How many shares they own
• What percentage of the company that represents

In the early days, your cap table might just be two founders splitting common stock. By the time you raise a seed round, it includes investors with preferred shares, an options pool for future hires, and possibly SAFEs or convertible notes that have not yet converted.

The cap table is not just a spreadsheet. It is the legal and financial record of ownership. Every future investor, acquirer, and employee will look at it.

A Simple Cap Table Example

Two founders start a company and authorize 10,000,000 shares.

At incorporation:

• Founder A: 5,000,000 shares (50%)
• Founder B: 5,000,000 shares (50%)
• Total: 10,000,000 shares (100%)

Clean and simple. But it does not stay this way.

What Is Dilution?

Dilution happens when new shares are issued and existing shareholders own a smaller percentage of the company.

This is normal. It happens every time you:

• Raise a funding round
• Create or expand an options pool
• Convert SAFEs or convertible notes
• Grant equity to advisors or employees

Dilution is not inherently bad. If you own 50% of a company worth $1M, you have $500K. If you get diluted to 30% but the company is now worth $10M, you have $3M. That is a good trade.

The problem is not dilution itself. The problem is not understanding how much dilution you are taking and from where.

How Dilution Works: A Funding Example

Using the same two-founder company above, an investor puts in $1M at a $4M pre-money valuation.

Post-money valuation = $4M + $1M = $5M

The investor gets $1M / $5M = 20% of the company.

To give the investor 20%, you issue new shares. If there were 10,000,000 shares before, you issue 2,500,000 new shares to the investor.

After the investment:

• Founder A: 5,000,000 shares (40%)
• Founder B: 5,000,000 shares (40%)
• Investor: 2,500,000 shares (20%)
• Total: 12,500,000 shares (100%)

Both founders went from 50% to 40%. That is dilution. But if the investor's money helps grow the company, that 40% could be worth far more than the original 50%.

What Is an Options Pool?

An options pool is a block of shares set aside for future employees, advisors, and contractors.

Instead of issuing equity one person at a time, you reserve a pool upfront. When you hire someone and grant them options, those options come from the pool.

Typical options pool sizes:

Pre-seed: 10% to 15%

Seed: 10% to 20%

Series A: 10% to 15% (refreshed)

The pool size depends on your hiring plan. If you need to hire a strong technical cofounder or a senior executive, you need more equity to offer. If you are staying lean, you need less.

The Options Pool Shuffle: Where Dilution Really Hurts

Here is the part most founders miss.

When investors set a pre-money valuation, they usually require that an options pool be created (or expanded) before their investment. This is called the options pool shuffle.

Why does this matter? Because the options pool dilutes the founders, not the investors.

Example:

An investor offers $1M at a $4M pre-money valuation, but requires a 15% options pool to be created first.

Before the pool (starting point):

• Founder A: 50%
• Founder B: 50%

After creating 15% pool (pre-investment):

• Founder A: 42.5%
• Founder B: 42.5%
• Options Pool: 15%

After investor puts in $1M for 20%:

• Founder A: 34%
• Founder B: 34%
• Options Pool: 12%
• Investor: 20%

The founders went from 50% each to 34% each. That is 32% dilution in one round, not 20%.

Because the investor percentage is calculated on a post-money basis, the pool shrinks as a percentage of the larger total share count.

If the options pool had been created after the investment (post-money), the investor would share in that dilution. But in a pre-money pool, founders bear the full cost.

This is standard practice. Just know it before you sign.

Make sure all founders are on a vesting schedule before negotiating. Read founder vesting explained.

Fully Diluted Ownership: The Number That Matters

There are two ways to calculate ownership:

Issued and outstanding: Only counts shares that have actually been issued.

Fully diluted: Counts all issued shares plus all shares that could be issued (options pool, unexercised options, unconverted SAFEs, warrants, etc.)

Investors always think in fully diluted terms. You should too.

When someone says "you will own 30% after this round," ask: "Is that fully diluted?"

If your 30% is based on issued shares but there is a 15% options pool and unconverted SAFEs, your real ownership is much lower.

Always model your cap table on a fully diluted basis before signing anything.

SAFEs and Convertible Notes on the Cap Table

SAFEs and convertible notes are not equity yet. They are promises of future equity.

They do not show up as ownership on your cap table until they convert, which usually happens at your next priced round.

But they absolutely affect your dilution. If you have $500K in SAFEs outstanding and then raise a $2M seed round, those SAFEs convert into shares alongside (or before) the new investor's shares.

When modeling your cap table, always include outstanding SAFEs and notes. Ignoring them gives you a false sense of how much you actually own.

Common Cap Table Mistakes

1. Not modeling dilution before signing

Founders get excited about a valuation number without running the actual math. A $5M valuation with a 20% options pool and two outstanding SAFEs might leave you with far less than you expected.

Build a model. Know your fully diluted ownership before you sign.

2. Giving away too much equity early

Advisors who want 1% to 2% for a few introductions. A contractor who wants equity instead of payment. A friend who helped with the pitch deck. These add up fast.

Early equity is expensive. Guard it carefully.

3. Not reserving enough for the options pool

If you plan to hire a senior CTO or VP, you need real equity to offer. Running out of pool means creating more shares, which dilutes everyone again.

Plan your pool based on your actual hiring roadmap, not arbitrary percentages.

4. Messy or outdated records

Handshake deals, unsigned stock purchase agreements, verbal promises. These create chaos when you try to raise or sell.

Use proper legal documents for every equity transaction. Keep your cap table updated after every change.

5. Forgetting about SAFEs and convertibles

Founders sometimes treat SAFEs like free money because they do not show up as ownership yet. But they will convert. Often at a discount. Model them.

How to Keep Your Cap Table Clean

Use cap table software. Tools like Carta or Pulley make it easy to track ownership, model scenarios, and generate reports for investors. Spreadsheets work early on but get messy fast.

Update after every transaction. New hire gets options? Update. Advisor agreement signed? Update. SAFE closed? Update. Do not let it drift.

Model future rounds. Before you raise, model what your cap table looks like after the round closes. Include the options pool, SAFE conversions, and new investor shares.

Get legal sign-off. Your cap table should match your legal documents exactly. If there is a mismatch, fix it before it becomes a problem during due diligence.

FAQ

How many shares should I authorize at incorporation?

A common number is 10,000,000 shares. This gives you flexibility without awkward decimal ownership percentages. The exact number does not matter much. What matters is the percentage each shareholder owns. This is common in US C-corps; other jurisdictions vary.

When should I start using cap table software?

Once you have more than founders on the cap table (investors, options, SAFEs), software makes life easier. Many founders switch at or before their seed round.

What is the difference between authorized, issued, and outstanding shares?

Authorized shares are the maximum you can issue (set in your charter). Issued shares have been given to someone. Outstanding shares are issued shares that have not been repurchased or cancelled. For most early stage companies, issued and outstanding are the same.

Do SAFEs show up on the cap table?

Not as ownership, because they have not converted yet. But you should track them separately and include them in your fully diluted model.

How much dilution is normal per round?

Expect 15% to 25% dilution per round at pre-seed and seed. This includes both investor ownership and options pool expansion. Ranges vary by market and round size; this is a common benchmark. If a single round dilutes you by 40%+, look carefully at the terms.

Can I reduce dilution by raising less money?

Yes, but only if you can still hit milestones. Raising too little and then needing a bridge round can be more dilutive than raising the right amount upfront.

What happens to the options pool if I do not use it all?

Unused options stay in the pool for future grants. If you raise another round, the pool might get topped up again. Unallocated options do not disappear, but they do dilute your fully diluted ownership.

Closing Thought

Your cap table is not just a spreadsheet. It is the financial architecture of your company.

Every founder should be able to explain their cap table clearly: who owns what, how dilution has worked across rounds, and what the fully diluted picture looks like.

The founders who understand this negotiate better terms, avoid costly mistakes, and keep more of what they build.

Learn it now. It pays off for the entire life of your company.