What Is a Cap Table?
A cap table (capitalization table) is a document that shows who owns your company. It lists every shareholder, the number and type of shares they own, and their ownership percentage. For startups, the cap table is the source of truth for equity ownership—it tracks founders, investors, employees with stock options, and anyone else with an ownership stake.
At its simplest, a cap table is a spreadsheet. At its most complex, it's a multi-tab model tracking common stock, multiple series of preferred stock, convertible instruments, option pools, and pro forma ownership across various scenarios. Every financing round, every option grant, and every equity event changes your cap table.
Getting your cap table right is essential. Errors compound over time and can derail fundraising, acquisitions, or IPOs. Investors will scrutinize your cap table during due diligence. Employees deserve to know their equity is tracked correctly. Your cap table is the foundation of your company's ownership structure.
Basic Cap Table Components
Shareholders
Every person or entity that owns equity: founders, investors, employees, advisors, and any other stockholders. Each shareholder row shows their name, share count, share type, and ownership percentage.
Common Stock
The basic form of equity, typically held by founders and employees. Common stockholders are last in line during liquidation and have fewer rights than preferred stockholders.
Preferred Stock
Stock with special rights, typically held by investors. Each funding round creates a new "series" of preferred stock (Series Seed, Series A, Series B, etc.) with its own terms. Preferred stockholders receive liquidation preferences, anti-dilution protection, and other negotiated rights.
Option Pool
Shares reserved for future employee equity grants. The option pool appears on the cap table as reserved but unissued shares. As options are granted, they move from the unallocated pool to specific employees (though unvested options may not appear until exercised, depending on how you track).
Convertible Instruments
SAFEs, convertible notes, and warrants that will convert to equity in the future. These may not appear on the "current" cap table but should be tracked and modeled for pro forma ownership calculations.
Understanding Ownership Percentages
Fully Diluted Ownership
The most common way to express ownership. Fully diluted includes all outstanding shares PLUS all shares that could be issued: unexercised options, the unallocated option pool, and convertible instruments. When someone says "you own 10% of the company," they usually mean fully diluted.
Outstanding Shares
Only shares that have actually been issued. This excludes the option pool and convertible instruments. Outstanding ownership percentages are higher than fully diluted, but less meaningful for understanding true ownership.
As-Converted Ownership
What ownership would look like if all preferred stock converted to common. This is relevant for voting and for modeling exit scenarios where preferred converts.
Building Your Cap Table
Starting Point: Formation
At incorporation, founders receive common stock. A typical early cap table might show:
- Founder A: 4,000,000 shares (40%)
- Founder B: 4,000,000 shares (40%)
- Option Pool: 2,000,000 shares (20%)
- Total: 10,000,000 shares (100%)
After a SAFE Round
When you raise on SAFEs, your cap table gets more complex. SAFEs don't immediately appear as shares—they appear as a separate section showing the conversion terms. A "pro forma" cap table models what ownership will look like after conversion.
After a Priced Round
Series Seed, Series A, and later rounds issue actual preferred shares. The cap table expands to show multiple stock classes:
- Common Stock (founders, employees)
- Series Seed Preferred (seed investors)
- Series A Preferred (Series A investors)
- Option Pool (reserved shares)
Tracking Options
Employee options require careful tracking. For each grant, record: grant date, number of shares, exercise price, vesting schedule, and expiration date. Track exercises, forfeitures, and cancellations. The option pool decreases as options are granted and increases when forfeited options return to the pool.
Cap Table Management Tools
Spreadsheets
Many early-stage companies use Excel or Google Sheets. This works when you have a simple cap table with few shareholders, but becomes error-prone as complexity grows. If you use spreadsheets, maintain rigorous version control and double-check calculations.
Cap Table Software
Purpose-built tools like Carta, Pulley, AngelList Stack, and Shareworks handle cap table complexity, issue electronic stock certificates, manage option grants, and produce reports. The cost is worth it once you have investors, an option pool, or plan to raise institutional money.
Your Lawyers
Your corporate counsel maintains the legal record of your cap table. They track stock issuances, prepare board consents, and ensure compliance. Your internal cap table should always reconcile with your lawyers' records.
Common Cap Table Mistakes
Not Keeping It Updated
Every stock issuance, option grant, exercise, and forfeiture should be recorded immediately. Letting updates pile up leads to errors. When you need to produce your cap table for investors or acquirers, you don't want to be scrambling to reconstruct history.
Forgetting Convertible Instruments
SAFEs and convertible notes are easy to forget because they're not "real" shares yet. But they represent significant future dilution. Always model your cap table on a pro forma basis including all convertibles.
Misunderstanding the Option Pool
The option pool is included in fully diluted calculations even if most options haven't been granted. A 20% option pool means 20% dilution to all existing shareholders, regardless of whether those options are allocated.
Errors in Early Grants
Mistakes made at incorporation compound over time. Incorrect share numbers, wrong vesting terms, or improper documentation create problems that are expensive to fix later. Get it right from the start.
Not Understanding Dilution
Each funding round dilutes existing shareholders. If you own 50% and raise a Series A that sells 20% of the company, you don't own 30%—you own 40% (50% × 80%). Understanding dilution math is essential for founders.
Granting Too Much Equity Too Early
Giving away large equity stakes to early employees or advisors leaves less for later hires when you'll need to attract top talent. Be thoughtful about equity grants and benchmark against industry standards.
Cap Table Scenarios to Model
Next Financing Round
What does ownership look like after your next round? Model different valuations and investment amounts to understand dilution. How does a $10M round at $30M pre-money differ from $15M at $40M pre-money?
Exit Scenarios
Liquidation preferences mean shareholders don't split proceeds proportionally. Model different exit values to understand who gets what. At a $20M exit, preferred shareholders might get everything. At $200M, everyone participates.
Future Option Pool Increases
Investors often require option pool increases as part of financing. These come from pre-money, diluting existing shareholders. Model how proposed pool increases affect your ownership.
Down Rounds
If you raise at a lower valuation, anti-dilution provisions kick in. Model the impact of weighted average vs. full ratchet anti-dilution on your cap table.
Cap Table Hygiene for Due Diligence
When investors conduct due diligence, they'll examine your cap table carefully. Be prepared with:
Clean Documentation
Every stock issuance should have corresponding board approvals, stock purchase agreements, and 83(b) elections (where applicable). Missing documentation raises red flags.
Reconciliation
Your cap table should match your lawyers' records, your stock ledger, your company's certificate of incorporation, and any cap table software you use. Discrepancies require explanation.
Vesting Schedules
Track vesting status for all shareholders with vesting. Know who is fully vested, who has unvested shares, and what happens to unvested shares in an acquisition.
Convertible Instruments Summary
List all SAFEs, convertible notes, and warrants with their key terms. Model pro forma conversion at various valuations.
Option Grant Detail
Every option grant with dates, amounts, exercise prices, and vesting. Show exercises, cancellations, and forfeitures. Calculate the remaining option pool.
Actionable Advice
For Founders
Start with a clean cap table at incorporation. Use round numbers of shares (10 million is common). Establish your option pool before you need it. Update your cap table within 24 hours of any equity event. Reconcile with your lawyers quarterly.
For Hiring and Compensation
Understand what percentage of the company an option grant represents. Be transparent with employees about how their equity fits into the cap table. Know how dilution from future rounds will affect employee ownership.
For Fundraising
Have your cap table ready before investor meetings. Be able to explain every line item. Model pro forma ownership at proposed valuations. Know your fully diluted share count and how you calculated it.
For Long-Term Planning
Project your cap table forward through multiple financing rounds. How much founder ownership remains after Series A, B, and C? What option pool expansion will investors require? Model scenarios to set expectations.
Cap Table and Company Control
Ownership and control aren't identical but they're related. Key control thresholds:
50%+: Board control (in many structures), ability to pass ordinary resolutions.
66.7%+: Ability to pass most supermajority resolutions.
90%+: Ability to squeeze out minority shareholders in some jurisdictions.
Watch how financing rounds affect these thresholds. Founders often lose majority ownership after Series A or B. Plan board composition and protective provisions accordingly.
The Bottom Line
Your cap table is more than a spreadsheet—it's the legal record of who owns your company and how much. It affects fundraising, hiring, exits, and every major corporate decision. Getting it right requires attention to detail, good systems, and regular maintenance.
Start clean, stay organized, and don't let complexity creep up on you. Use professional tools when you outgrow spreadsheets. Reconcile with your lawyers regularly. Model scenarios before they happen.
A well-maintained cap table is a sign of a well-run company. Investors notice. Employees appreciate it. And when it's time for an exit, you'll be grateful you got it right from the beginning.