What is a cap table?

A cap table, short for capitalization table, is a document that outlines the ownership of a company. It shows how much each shareholder owns in the form of stock or equity and how much each shareholder has invested in the company. Cap tables are essential for startups because they help founders understand their company's ownership and financial structure, and they play a crucial role in fundraising and financial planning.

Startup entrepreneurs need to understand how cap tables work and how they can impact your company's future. This blog post will cover the basics of cap tables, how they're used in venture-backed startups, and some key terms and concepts you'll need to understand as you build and manage your own cap table.

A cap table is essentially a spreadsheet that lists a company's shareholders, ownership stakes, and the terms of their investments. It includes information on each shareholder:

• Name and contact information
• Total number of shares owned
• Percentage of ownership
• Valuation of the company at the time of their investment
• Type of stock or equity ownership (e.g., common, preferred)
• Voting rights

Cap tables can also include information on stock option plans and warrants (more on these later) and any dilution or conversion provisions that may apply to the shares.

Check out our ultimate guide to cap tables to learn everything founders should know about managing their capitalization table!

Cap tables are important for startups because they help founders understand their company's ownership and financial structure. They can help founders answer questions like:

• Who owns what percentage of the company?
• How much equity have each shareholder invested in the company?
• What is the valuation of the company at any given point in time?

In addition to providing this information, cap tables are also used in fundraising and financial planning. For example, suppose an early-stage startup is seeking funding from venture capitalists and angel investors. In that case, the venture capital firm and other potential investors will likely want to see the company’s cap table to understand the ownership structure and how much equity is available for them to invest in.

Cap tables are also used to track dilution, which is the decrease in ownership percentage that occurs when a company issues new shares. Dilution can be caused by a variety of factors, including:

• New investments
• Exercise of stock options by employees
• Conversion of debt to equity

Dilution is a normal part of the life cycle of a startup. Still, founders need to understand and manage it to ensure they retain enough ownership in the company to stay motivated and aligned with its mission.

Several different types of equity can appear on a cap table. Here are a few of the most common:

• Common stock: Common stock is a company's most basic form of equity. It typically entitles the holder to vote on company matters and to receive dividends (if the company declares them). Common shareholders are usually the last to be paid if the company is sold or goes bankrupt.
• Preferred stock: Preferred stock is a type of equity that typically has a higher priority than common stock. Preferred shareholders are generally entitled to receive dividends before common shareholders, and they may also have the right to convert their preferred shares into common shares later on. Preferred shareholders may also have certain voting rights, but these are often limited compared to common shareholders.
• Options: Options are the right to buy a certain number of shares of stock at a predetermined price (the "strike price") at some point in the future. Options are often granted to employees as part of their compensation packages. The totality of these shares are grouped and called employee stock option pool. There are two types of options: incentive stock options (ISOs) and non-qualified Options (NQSOs). ISOs are generally granted to employees and have certain tax benefits, but they also have certain restrictions on when they can be exercised and sold. NQSOs, on the other hand, are not subject to these restrictions and can be granted to anyone, but they do not have the same tax benefits as ISOs.
• Warrants: Warrants are similar to options but are typically issued to investors as part of a financing round. They give the holder the right to purchase a certain number of shares at a predetermined price (the "exercise price"). Warrants are typically issued to sweeten the deal for investors, as they can offer a higher return if the company's stock price increases significantly.

A cap table at incorporation might look like this:

• Founder A: 4,000,000 shares of common stock — 50% ownership
• Founder B: 4,000,000 shares of common stock — 50% ownership
• Total: 8,000,000 shares outstanding

After a $500,000 seed round at a $5M pre-money valuation:

• Founder A: 4,000,000 shares — 40%
• Founder B: 4,000,000 shares — 40%
• Seed investor: 1,000,000 shares of preferred stock — 10%
• Employee option pool: 1,000,000 shares reserved — 10%
• Total fully diluted: 10,000,000 shares

Notice that both founders went from 50% to 40% — they were diluted by the new shares issued to the investor and the option pool. Dilution reduces your percentage ownership, but it does not necessarily reduce the value of your stake if the company's valuation increased.

A 409A valuation is an independent appraisal of your company's fair market value, specifically used to set the strike price for employee stock options. Under IRS Section 409A, options must be granted at or above the fair market value of the common stock at the time of grant. Grant them below fair market value and employees face significant tax penalties.

You need a 409A valuation at or near incorporation, after every funding round, and at least annually if no financing event has occurred — here's a full breakdown of when you need a 409A valuation. Your cap table tracks these valuations over time, which is why 409A information often lives alongside your equity records.

For a deeper explanation of how 409A valuations work and what they mean for your startup, read our guide: What is a 409A valuation?

SAFEs (Simple Agreements for Future Equity) and convertible notes are common ways to raise early money without immediately setting a valuation. They sit on your cap table as outstanding convertibles — equity that doesn't yet have a fixed ownership percentage. If you're new to these instruments, read our guides on how SAFEs work and how convertible notes work before issuing either.

When these instruments convert (typically at your next priced round), they become equity — usually preferred stock — and your cap table is updated to reflect the new ownership percentages. This conversion often includes a discount rate and/or a valuation cap, which determines how favorable the conversion terms are for the investor. For a detailed walkthrough of how that conversion mechanics works, see how SAFEs and convertible notes convert in a priced round.

Managing SAFEs and convertibles carefully matters: multiple SAFEs with different caps and discounts can create complex dilution calculations that surprise founders at their Series A. Before choosing between the two, it's worth understanding the key differences between SAFEs and convertible notes. A good cap table tool will model these conversions automatically.

The most common cap table mistakes we see:

• Giving away too much equity too early. Early advisors and contractors who receive 5–10% stakes for minimal work create a messy cap table that concerns later investors.
• Not using a vesting schedule for co-founders. If a co-founder leaves in year one and owns 40% of the company outright, your startup has a serious problem. Standard four-year vesting with a one-year cliff protects everyone. (Add internal link: "vesting schedules" → capbase.com/founder-vesting-schedules-best-practices/)
• Managing the cap table in a spreadsheet after the first funding round. Spreadsheets don't enforce consistency, don't track dilution automatically, and create reconciliation nightmares before due diligence.
• Missing the 83(b) election window. When you receive restricted stock, you have 30 days to file an 83(b) election with the IRS. Missing this deadline can result in significant tax liability as shares vest.

For a deeper dive, read our guide: 5 Cap Table Mistakes to Avoid.

As a startup founder, it's important to keep your cap table up to date and accurate. This can be challenging, especially as you raise new funding rounds and bring on new investors or employees. Here are a few tips for managing your cap table:

• Use a cap table software tool: Capbase lets you execute a contract for equity, be it a stock option agreement, or a convertible note, while your cap table is updated in real time.
• Communicate with your shareholders: It's important to keep your shareholders informed about the status of your company and any changes to the cap table. This can help to prevent misunderstandings or disputes down the road.
• Be transparent: Be open and transparent with your investors and employees about the terms of their equity and any dilution that may occur. This can help to build trust and keep everyone aligned with the company's goals.
• Seek legal advice: If you have any questions or concerns about your cap table or equity structure, it's a good idea to seek legal advice from a qualified attorney. They can help you understand the legal implications of different equity structures and advise you on your company's best course of action.

Most founders build their first cap table in a spreadsheet. That works until it doesn't — a new investor, a SAFE conversion, an option grant — and suddenly reconciling your ownership structure takes hours you don't have.

Capbase connects your legal agreements directly to your cap table. When you issue shares, sign a SAFE, or issue a convertible note through Capbase, your cap table updates automatically. No manual entry. No version control. No catching up before a fundraise.

Start your Delaware C corp with Capbase, and your cap table is accurate from day one.