#What Is a Cap Table
A cap table is a single view of every equity holder in the company — founders, employees, investors — and the form their holdings take (common stock, preferred stock, options, SAFEs, and so on). It's not just a record of who owns what percentage; it's closer to the company's constitution, determining how much each party gets diluted in future rounds and how voting rights and liquidation preferences actually play out.
| Component | Description |
|---|---|
| Common Stock | The base equity held by founders and regular employees |
| Preferred Stock | Equity held by investors, bundled with rights like liquidation preference and conversion |
| Option Pool (ESOP) | Shares reserved for future stock option grants to employees |
| SAFE / Convertible Note | An unresolved promise of equity that converts into preferred stock at the next round |
| Fully Diluted Ownership | Ownership percentages assuming all options, SAFEs, and notes have converted |
#Co-Founder Equity Splits — Why You Should Avoid 50/50
With two co-founders, a 50/50 split looks like the fairest option, but in practice it's the riskiest structure. There's no built-in mechanism for breaking a decision-making deadlock, and later-stage investors frequently hold off on investing because they're worried about ambiguous leadership.
| Structure | Advantage | Risk |
|---|---|---|
| 50 / 50 | Feels psychologically fair | Company stalls under deadlock; investors tend to avoid it |
| 55 / 45 | Effectively equal, with a clear tie-breaker | Requires an upfront agreement between founders |
| 60 / 40 | Clear leader | Needs a defensible rationale for the gap |
| 3+ founders | Role-based differentiation (e.g., 45/30/25) | Must be paired with vesting terms |
When deciding the split, anchoring on 'who sees this through to the end' rather than 'who worked harder' leads to fewer regrets. Whoever takes the larger stake should also carry a commensurate share of decision-making authority and responsibility.
#The Option Pool (ESOP) — Setting It Up Before or After Seed
The option pool reserves stock options in advance for future grants to employees. It's typically set at 10-15% of total company equity, and exactly when you carve it out completely changes who bears the dilution.
| Timing | Who Bears the Dilution | Investor Preference |
|---|---|---|
| Before the seed round (pre-money) | Existing founders bear it | Preferred by investors — effectively lowers the valuation |
| After the seed round (post-money) | New investors share the dilution too | Favorable to founders |
The option pool isn't granted all at once — shares are allocated gradually as new hires come in. Any unallocated portion can be topped up or reclaimed at the next round.
#Round-by-Round Dilution Simulation
Below is a simplified example with two co-founders, a seed round, and a Series A round. Real deals involve more variables — SAFE conversions, option pool top-ups, and so on — that make the math more complex.
| Stage | Co-Founder A | Co-Founder B | Option Pool | Investors |
|---|---|---|---|---|
| Right after founding | 60% | 40% | 0% | 0% |
| 10% option pool created | 54% | 36% | 10% | 0% |
| Seed (20% new shares issued) | 43.2% | 28.8% | 8% | 20% |
| Series A (25% new shares issued) | 32.4% | 21.6% | 6% | 40% (15% from seed + 25% from A) |
#Vesting and the Cliff — What Happens to a Departing Founder's Equity
What should happen to a co-founder's equity if they leave after just six months? Without a vesting clause, a founder keeps their full stake even after quitting. Vesting and the cliff exist specifically to prevent this scenario.
- Vesting — equity is earned gradually only as long as the founder stays with the company (typically over 4 years)
- Cliff — if the founder leaves before an initial period (typically 1 year), their vested equity is treated as zero
- Acceleration — an optional clause under which remaining unvested equity vests immediately upon a sale or acquisition of the company
The standard structure is 4-year vesting with a 1-year cliff: 0% if you leave within the first year, 25% vested at the one-year mark, then 1/48 vesting each month after that. Applying this among co-founders from day one — rather than adding it later — minimizes disputes.
#Five Common Mistakes in an Early Cap Table
- Splitting 50/50 between co-founders with no vesting clause — if one leaves, there's no way to reclaim their equity
- Handing out 5-10% stakes to outside advisors early on with nothing attached — nearly impossible to claw back at a later round
- Setting an oversized (20%+) pre-money option pool right before seed — this sharply cuts into founder ownership
- Issuing multiple SAFEs over time without ever simulating the conversion — leads to unexpectedly large dilution at Series A
- Not keeping the shareholder registry, articles of incorporation, and board resolutions in order — this stalls deals during due diligence
#Managing the Cap Table — Standard Tools and Operating Principles
A spreadsheet is enough in the earliest days. Once SAFEs, options, and multiple rounds start piling up post-Series A, moving to dedicated software becomes worth the effort.
- Pre-Seed to Seed — a Google Sheets or Excel template, with separate tabs for as-issued and fully diluted views
- Seed to Series A — adopt dedicated software such as Carta or Pulley, which automates option grants and vesting tracking
- Change history — every new share issuance, option grant, or SAFE should be reflected immediately in board resolutions and the shareholder registry
- Co-founders, the CFO, and legal counsel should all be working from the same up-to-date version
#Self-Check: A Founder's Checklist
- Is the equity split between co-founders — along with vesting terms — spelled out in your articles of incorporation or founders' agreement?
- Is your option pool sized appropriately for your hiring plan over the next 12-18 months — neither oversized nor undersized?
- Have you simulated how the cap and discount terms on your outstanding SAFEs or notes will play out under a Series A scenario?
- Can you map out a scenario where your ownership stays above 30% five years from now?
- Are your shareholder registry, board resolutions, and shareholders' agreement all kept up to date?
- Does any equity granted to outside advisors include vesting or clawback conditions?
- Is there a written clause covering equity reclamation and redistribution if a co-founder departs?
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