Cap Table Basics: Understanding Startup Equity & Ownership (2025 Guide)

What is a Cap Table?

A capitalization table (cap table) is a spreadsheet or database that tracks who owns what percentage of your company.

What a Cap Table Shows

Your cap table tracks:

Shareholders: All equity holders (founders, investors, employees, advisors)
Share counts: Number of shares each person owns
Security types: Common stock, preferred stock, options, warrants, SAFEs, convertible notes
Ownership percentages: Each person's percentage of the company
Dilution over time: How ownership changes with each funding round

Why Cap Tables Matter

For founders:

Track your ownership percentage as the company grows
Model dilution from future funding rounds
Calculate how much equity to offer employees and advisors
Prepare for 409A valuations and fundraising

For investors:

Verify ownership percentages and liquidation preferences
Model returns based on ownership stake
Track portfolio company equity structure

For employees:

Understand the value of your stock options
Calculate potential payout at exit

Cap Table vs Shareholder Register

Feature	Cap Table	Shareholder Register
Legal status	Internal management tool	Official legal record
Purpose	Track ownership and model dilution	Comply with state corporate law
Format	Spreadsheet or software	Physical or digital ledger
Detail level	Shows options, convertibles, warrants	Shows only issued shares
Updates	Updated continuously	Updated at board approval
Audience	Founders, CFO, board, investors	Company secretary, state filings

Both are required. The cap table is your working document; the shareholder register is your legal record.

Cap Table Components

1. Shareholders (Equity Holders)

Every person or entity that owns equity in your company:

Founders: Common stock (typically issued at incorporation)
Investors: Preferred stock (Series Seed, Series A, Series B, etc.)
Employees: Stock options (ISOs) or restricted stock
Advisors: Stock options (NSOs) or restricted stock
Convertible security holders: SAFE or convertible note holders (pre-conversion)

2. Share Counts

Issued shares:

Common stock issued to founders
Preferred stock issued to investors
Restricted stock issued to employees or advisors

Reserved shares:

Stock options reserved in option pool (not yet granted)
Stock options granted but not yet exercised
Warrants (options to purchase shares, typically issued to lenders or advisors)

Outstanding shares:

Issued shares only (excludes reserved but ungranted options)

Fully diluted shares:

All issued shares + all reserved options + all convertible securities (as-if converted)

3. Security Types

Security Type	Who Gets It	Voting Rights	Liquidation Priority	Cap Table Treatment
Common Stock	Founders, employees (post-exercise)	Yes (1 vote per share)	Last (after all preferred)	Issued shares
Preferred Stock	Investors (Series Seed, A, B, C, etc.)	Yes (1 vote per share, typically)	First (1x liquidation preference minimum)	Issued shares
Stock Options	Employees, advisors	No (until exercised)	N/A (not yet shares)	Reserved shares
Restricted Stock	Early employees, advisors	Yes (subject to vesting)	Last (common equivalent)	Issued shares
SAFEs	Pre-seed/seed investors	No	Converts to preferred at next round	Convertible securities
Convertible Notes	Early investors	No	Converts to preferred at next round	Convertible securities
Warrants	Lenders, vendors, advisors	No (until exercised)	Varies	Reserved shares

4. Ownership Percentages

Two ways to calculate ownership:

A. Issued and Outstanding Basis

Ownership % = Shareholder's Shares / Total Issued Shares

Excludes:

Ungranted options in the option pool
Granted but unexercised options
Unexercised warrants
Unconverted SAFEs or convertible notes

Used for:

Board voting (only issued shares vote)
Dividend calculations (if applicable)

B. Fully Diluted Basis

Ownership % = Shareholder's Shares / Fully Diluted Share Count

Includes:

All issued shares (common + preferred)
All reserved options (granted + ungranted)
All convertible securities (as-if converted to common or preferred)
All warrants

Used for:

Investor term sheets ("We want 20% on a fully diluted basis")
409A valuations
Employee equity offers ("You'll get 0.5% of the company")
Dilution modeling

Most startup conversations about ownership use fully diluted basis.

Understanding Share Types

Common Stock

Who gets it:

Founders (at incorporation)
Employees (after exercising stock options)
Advisors (sometimes, as restricted stock)

Characteristics:

Voting rights: 1 vote per share (typically)
Liquidation priority: Last (paid after all preferred stockholders)
Dividends: Only if declared by board (rare in startups)
Conversion: Does not convert (already common stock)

Typical founder allocation:

2 founders: 5,000,000 shares each (10,000,000 total)
3 founders: 3,333,334 shares each (10,000,000 total)
4 founders: 2,500,000 shares each (10,000,000 total)

Par value: $0.00001 per share (Delaware standard)

Preferred Stock

Who gets it:

Investors (in priced equity rounds)

Characteristics:

Voting rights: 1 vote per share (converts to common for voting)
Liquidation preference: 1x invested capital (paid before common stock)
Dividends: Typically non-cumulative (no actual dividend payments)
Conversion: Converts to common stock at 1:1 ratio (adjusted for splits)
Anti-dilution protection: Weighted average (protects against down rounds)

Example: Series A Preferred Stock

Investment: $5,000,000 Price per share: $2.00 Shares issued: 2,500,000 shares

Liquidation preference:

If company sells for $10M, Series A gets $5M first, then common gets remaining $5M
If company sells for $3M, Series A gets all $3M, common gets $0

Why investors want preferred stock:

Downside protection (get money back first)
Upside participation (converts to common if better outcome)

Stock Options

Who gets them:

Employees (ISOs or NSOs)
Advisors (NSOs only)
Contractors (NSOs only)

Characteristics:

Voting rights: None (until exercised)
Liquidation priority: N/A (not yet shares)
Exercise price: Determined by 409A valuation (FMV of common stock)
Vesting: Typically 4-year vest, 1-year cliff
Expiration: Typically 10 years from grant date

Two types of stock options:

Incentive Stock Options (ISOs)

Only for employees (not contractors or advisors)
Tax advantage: No tax at exercise (if held 2 years from grant, 1 year from exercise)
Annual limit: $100K FMV per year (excess treated as NSOs)
AMT risk: May trigger Alternative Minimum Tax

Non-Qualified Stock Options (NSOs)

For anyone (employees, advisors, contractors)
Tax treatment: Taxed as ordinary income at exercise (spread between FMV and exercise price)
No annual limit
No AMT: No Alternative Minimum Tax risk

Restricted Stock

Who gets it:

Early employees (issued instead of options)
Advisors (sometimes)

Characteristics:

Voting rights: Yes (subject to repurchase until vested)
Liquidation priority: Common stock equivalent
Vesting: Same as options (4-year, 1-year cliff typical)
83(b) election: Must file within 30 days to avoid tax at vesting

Restricted stock vs stock options:

Feature	Restricted Stock	Stock Options
Ownership	Own shares immediately	No shares until exercise
Voting	Yes (subject to vesting)	No
Tax at grant	Yes (unless 83(b) filed)	No
Tax at vest	Yes (if no 83(b))	No
Tax at exercise	N/A	Yes (ordinary income)
Tax at sale	Capital gains (if held >1 year post-vest)	Capital gains (if held >1 year post-exercise)
Cost to recipient	Par value only ($0.00001/share typical)	Exercise price (FMV at grant)

When to use restricted stock:

Pre-409A valuation: Issue restricted stock before first valuation (FMV = $0.00001)
Founder equity: Founders often get restricted stock with reverse vesting
Early employees: Hire employee #1-5 with restricted stock (cheap to purchase)

When to use stock options:

Post-409A valuation: FMV rises, so restricted stock creates immediate tax liability
Most employees: Standard equity compensation after seed funding

Fully Diluted Shares Calculation

Fully diluted share count includes all shares that exist or could exist if all options were exercised and all convertible securities converted.

Fully Diluted Formula

Fully Diluted Shares =
    Issued Common Stock
  + Issued Preferred Stock (as-if converted to common)
  + Stock Option Pool (all reserved shares, granted + ungranted)
  + Warrants (all issued warrants)
  + SAFEs (as-if converted at valuation cap)
  + Convertible Notes (as-if converted at next round)

Example Calculation

Company: Acme Inc.

Issued Shares

Founder A: 4,500,000 common shares
Founder B: 4,500,000 common shares
Seed investors: 2,000,000 Series Seed preferred shares
Total issued: 11,000,000 shares

Reserved Shares (Option Pool)

Granted options: 500,000 shares
Ungranted options: 1,000,000 shares
Total option pool: 1,500,000 shares

Convertible Securities

Outstanding SAFEs: $500,000 at $10M cap, 20% discount
- Converts to: 500,000 / ($10M / 13.5M fully diluted) × 13.5M = 675,000 shares (simplified)
Total SAFE shares (as-if converted): 675,000 shares

Fully Diluted Calculation

Fully Diluted Shares = 11,000,000 (issued)
                     + 1,500,000 (option pool)
                     + 675,000 (SAFEs)
                     = 13,175,000 shares

Ownership Percentages (Fully Diluted)

Founder A: 4,500,000 / 13,175,000 = 34.2%
Founder B: 4,500,000 / 13,175,000 = 34.2%
Seed investors: 2,000,000 / 13,175,000 = 15.2%
SAFE investors: 675,000 / 13,175,000 = 5.1%
Option pool: 1,500,000 / 13,175,000 = 11.4%

Total: 100%

Ownership Percentage Calculation

Formula: Ownership on Fully Diluted Basis

Ownership % = Your Shares / Fully Diluted Share Count

Example 1: Founder Ownership at Incorporation

Incorporation:

Founder A: 5,000,000 shares
Founder B: 5,000,000 shares
Total: 10,000,000 shares

Founder A ownership:

5,000,000 / 10,000,000 = 50%

Example 2: After Creating Option Pool

Add 15% option pool (pre-money to founders):

To create a 15% option pool, we need to reserve shares such that:

Option Pool Shares / (Issued Shares + Option Pool Shares) = 15%

Solving for option pool shares:

Option Pool Shares = 15% × (Issued Shares + Option Pool Shares)
Option Pool Shares = 0.15 × (10,000,000 + Option Pool Shares)
Option Pool Shares = 1,500,000 + 0.15 × Option Pool Shares
0.85 × Option Pool Shares = 1,500,000
Option Pool Shares = 1,764,706 shares

New fully diluted share count:

Fully Diluted = 10,000,000 + 1,764,706 = 11,764,706 shares

Founder A ownership (post-option pool):

5,000,000 / 11,764,706 = 42.5%

Founder A dilution: 50% → 42.5% (7.5% dilution from option pool)

Example 3: After Series A Investment

Series A terms:

Investment: $5,000,000
Post-money valuation: $25,000,000
Investor ownership: 20% (on post-money basis)

Pre-money valuation:

Pre-money = Post-money - Investment
Pre-money = $25,000,000 - $5,000,000 = $20,000,000

Series A shares to issue:

Investor wants 20% post-money, so:

Investor Shares / (Existing Fully Diluted + Investor Shares) = 20%

Solving:

Investor Shares = 20% × (11,764,706 + Investor Shares)
Investor Shares = 0.20 × (11,764,706 + Investor Shares)
Investor Shares = 2,352,941 + 0.20 × Investor Shares
0.80 × Investor Shares = 2,352,941
Investor Shares = 2,941,176 shares

New fully diluted share count:

Fully Diluted = 11,764,706 + 2,941,176 = 14,705,882 shares

Founder A ownership (post-Series A):

5,000,000 / 14,705,882 = 34.0%

Founder A dilution: 50% → 42.5% → 34.0%

Understanding Dilution

Dilution occurs when a company issues new shares, reducing the ownership percentage of existing shareholders.

Types of Dilution

1. Option Pool Dilution

When it happens: Creating or expanding the stock option pool.

Who gets diluted: Founders and existing common stockholders (not investors, if pool created pre-money).

Example:

Before option pool:

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

After 15% option pool:

Founder A: 5,000,000 shares (42.5%)
Founder B: 5,000,000 shares (42.5%)
Option pool: 1,764,706 shares (15%)
Total: 11,764,706 shares

Dilution: 7.5% per founder

2. Investment Dilution

When it happens: Issuing preferred stock to investors in a priced equity round.

Who gets diluted: All existing shareholders (founders, employees, prior investors) proportionally.

Example:

Before Series A:

Founder A: 5,000,000 shares (42.5%)
Founder B: 5,000,000 shares (42.5%)
Option pool: 1,764,706 shares (15%)
Total: 11,764,706 shares

Series A: $5M at $25M post-money (20% to investor)

After Series A:

Founder A: 5,000,000 shares (34.0%)
Founder B: 5,000,000 shares (34.0%)
Option pool: 1,764,706 shares (12.0%)
Series A investor: 2,941,176 shares (20%)
Total: 14,705,882 shares

Dilution per founder: 42.5% → 34.0% (8.5% dilution)

3. Down Round Dilution

When it happens: Raising at a lower valuation than the previous round.

Who gets diluted: Founders and common stockholders (employees) more than investors (due to anti-dilution protection).

Example:

Company raised Series A at $25M post-money ($5M invested).

Series B down round: $5M at $15M post-money (33.3% to new investor).

Anti-dilution protection (weighted average):

Series A price per share was $2.00
Series B price per share is $1.20 (40% discount)
Series A conversion ratio adjusts to 1:1.25 (receives 25% more shares on conversion)

Result:

Series A investor is partially protected (gets more shares)
Founders and employees absorb most of the dilution

4. Conversion Dilution

When it happens: SAFEs or convertible notes convert to equity at the next priced round.

Who gets diluted: All existing shareholders proportionally.

Example:

Outstanding SAFE: $500K at $10M valuation cap

Series A round: $5M at $25M post-money

SAFE conversion:

SAFE investors get shares as if they invested at the $10M cap (lower valuation = more ownership).

SAFE ownership = $500K / $10M = 5% of pre-SAFE cap table

If pre-SAFE cap table was 11,764,706 shares:

SAFE shares = 5% / (1 - 5%) × 11,764,706 = 618,668 shares

New fully diluted: 11,764,706 + 618,668 = 12,383,374 shares (before Series A)

Then Series A adds 20% on top of that.

Cumulative Dilution: Seed to Series C

Round	Founder Ownership	Dilution from Previous	Cumulative Dilution
Incorporation	50.0%	—	0%
Option Pool (15%)	42.5%	7.5%	7.5%
SAFE ($500K @ $10M cap)	40.4%	2.1%	9.6%
Series A ($5M @ $25M post)	32.3%	8.1%	17.7%
Option Pool Refresh (+5%)	30.7%	1.6%	19.3%
Series B ($15M @ $75M post)	24.6%	6.1%	25.4%
Series C ($30M @ $180M post)	20.5%	4.1%	29.5%

Key insight: Each founder goes from 50% at incorporation to ~20% by Series C (60% diluted). This is normal and expected for venture-backed startups.

Option Pool Impact on Cap Table

The option pool (ESOP, Employee Stock Option Pool) is a reserve of shares set aside for employee stock options.

Standard Option Pool Sizes

Stage	Typical Pool Size	Notes
Pre-seed	10-15%	Enough for first 5-10 hires
Seed	15-20%	Hiring 10-20 employees
Series A	15-20%	Institutional investors require refresh
Series B+	10-15%	Smaller refresh (pool already exists)

Pre-Money vs Post-Money Option Pool

This is the most important dilution negotiation in any funding round.

Pre-Money Option Pool (Standard)

The option pool is created or expanded before the new investment.

Who gets diluted: Founders and existing shareholders (not the new investor).

Example:

Before Series A:

Founders: 10,000,000 shares (100%)

Investor requests: 20% post-money + 15% option pool (post-money)

Step 1: Create option pool (pre-money to founders)

To have a 15% pool post-money:

Option Pool = 15% × (10,000,000 + Pool + Investor Shares)

Since investor will own 20%, existing shareholders will own 80%:

Existing + Pool = 80%
Existing = 10,000,000 (founders)
Pool = X

10,000,000 / (10,000,000 + X) = 80% - 15% = 65%
10,000,000 = 0.65 × (10,000,000 + X)
10,000,000 = 6,500,000 + 0.65X
3,500,000 = 0.65X
X = 5,384,615 shares

Wait, that's not right. Let me recalculate.

Correct calculation:

We want:

Investor: 20% post-money
Option pool: 15% post-money
Founders: 65% post-money

Step 1: Create option pool first

Founders start with 10,000,000 shares (100%).

Create option pool such that founders + pool = 80% (the 80% that doesn't go to investor):

Founders / (Founders + Pool) = 65% / 80% = 81.25%
10,000,000 / (10,000,000 + Pool) = 0.8125
10,000,000 = 0.8125 × (10,000,000 + Pool)
10,000,000 = 8,125,000 + 0.8125 × Pool
1,875,000 = 0.8125 × Pool
Pool = 2,307,692 shares

After creating pool (before investment):

Founders: 10,000,000 shares (81.25% of 12,307,692)
Option pool: 2,307,692 shares (18.75% of 12,307,692)
Pre-money fully diluted: 12,307,692 shares

Step 2: Issue Series A shares

Investor wants 20% post-money:

Investor Shares / (12,307,692 + Investor Shares) = 20%
Investor Shares = 0.20 × (12,307,692 + Investor Shares)
Investor Shares = 2,461,538 + 0.20 × Investor Shares
0.80 × Investor Shares = 2,461,538
Investor Shares = 3,076,923 shares

Post-money fully diluted: 12,307,692 + 3,076,923 = 15,384,615 shares

Final ownership:

Founders: 10,000,000 / 15,384,615 = 65.0% ✓
Option pool: 2,307,692 / 15,384,615 = 15.0% ✓
Investor: 3,076,923 / 15,384,615 = 20.0% ✓

Result: Founders diluted from 100% to 65% (35% dilution).

Post-Money Option Pool (Rare)

The option pool is created or expanded after the new investment.

Who gets diluted: New investor and existing shareholders proportionally.

Using same example:

Step 1: Issue Series A shares first

Investor wants 20% of 10,000,000 existing shares:

Investor Shares / (10,000,000 + Investor Shares) = 20%
Investor Shares = 0.20 × (10,000,000 + Investor Shares)
0.80 × Investor Shares = 2,000,000
Investor Shares = 2,500,000 shares

After investment (before pool):

Founders: 10,000,000 shares (80%)
Investor: 2,500,000 shares (20%)
Total: 12,500,000 shares

Step 2: Create 15% option pool (post-money)

Pool / (12,500,000 + Pool) = 15%
Pool = 0.15 × (12,500,000 + Pool)
0.85 × Pool = 1,875,000
Pool = 2,205,882 shares

Final ownership:

Founders: 10,000,000 / 14,705,882 = 68.0%
Investor: 2,500,000 / 14,705,882 = 17.0%
Option pool: 2,205,882 / 14,705,882 = 15.0%

Result: Founders diluted from 100% to 68% (32% dilution) — 3% less dilution than pre-money pool.

Why Pre-Money Option Pool is Standard

Investors always request pre-money option pool because:

They get their full 20% (not diluted by the option pool)
Founders bear the cost of hiring employees (diluted by pool before investment)
Aligns incentives (founders want to minimize pool size to reduce dilution)

Negotiation tip: If investor insists on large option pool (20%+), negotiate post-money pool or push back on pool size.

Pre-Money vs Post-Money Option Pools

Pre-Money Option Pool (Standard)

Definition: Option pool created or expanded before investor puts money in.

Who gets diluted:

✅ Founders and existing shareholders
❌ New investor (not diluted)

Math:

Pre-Money Valuation = Post-Money Valuation - Investment
Pre-Money Shares = Existing Shares + Option Pool Shares
Post-Money Shares = Pre-Money Shares + New Investor Shares

When used:

Standard in 95% of term sheets
Investor protection (ensures full ownership percentage)

Example:

Founders: 10M shares (100%)
Create 2M option pool (16.7% pre-money, 14.3% post-money)
Investor buys 3M shares for $5M
Result:
- Founders: 10M / 15M = 66.7%
- Option pool: 2M / 15M = 13.3%
- Investor: 3M / 15M = 20%

Post-Money Option Pool (Rare)

Definition: Option pool created or expanded after investor puts money in.

Who gets diluted:

✅ Founders, existing shareholders, AND new investor
❌ No one is protected

Math:

Pre-Money Shares = Existing Shares (no pool yet)
Post-Money Shares = Pre-Money Shares + New Investor Shares
Post-Money Shares (final) = Post-Money Shares + Option Pool Shares

When used:

Rare (negotiated by strong founders)
Founder-friendly terms

Same example (post-money pool):

Founders: 10M shares (100%)
Investor buys 2.5M shares for $5M (20% of 12.5M)
After investment: Founders 80%, Investor 20%
Create 2.2M option pool (15% post-money)
Result:
- Founders: 10M / 14.7M = 68%
- Investor: 2.5M / 14.7M = 17%
- Option pool: 2.2M / 14.7M = 15%

Founder dilution comparison:

Pre-money pool: 100% → 66.7% (33.3% dilution)
Post-money pool: 100% → 68% (32% dilution)

Difference: 1.3% less dilution with post-money pool.

Negotiating Option Pool Size

Investor may request 20%+ option pool to:

Force founders to plan hiring roadmap
Avoid future dilution from option pool refreshes

Founder pushback strategies:

Provide detailed hiring plan:
- "We need 15% for 12 hires over 18 months" (show spreadsheet)
- Justify each hire (title, equity grant, vesting schedule)
Negotiate post-money pool:
- "We'll accept 20% pool if it's post-money" (investor shares dilution)
Request milestone-based refresh:
- "Start with 15% pool now, refresh +5% at Series B term sheet"
Model future dilution:
- Show investor that 20% pool will leave 8% ungranted, forcing premature refresh

Reading Your Cap Table

Sample Cap Table (Post-Series A)

Shareholder	Security Type	Shares	% (Fully Diluted)	Investment	Current Value @ $25M Post
Founder A	Common Stock	4,250,000	28.3%	$425 (par value)	$7,075,000
Founder B	Common Stock	4,250,000	28.3%	$425 (par value)	$7,075,000
Employee 1	Common Stock (vested)	100,000	0.7%	$10,000 (exercise)	$175,000
Granted Options	Stock Options	400,000	2.7%	Not yet exercised	$700,000
Ungranted Pool	Reserved	1,500,000	10.0%	—	—
SAFE Investors	Converted to Series Seed	500,000	3.3%	$500,000	$825,000
Seed Investors	Series Seed Preferred	1,000,000	6.7%	$1,000,000	$1,670,000
Series A Investor	Series A Preferred	3,000,000	20.0%	$5,000,000	$5,000,000
Total		15,000,000	100%	$6,510,850	$25,000,000

How to Read This Cap Table

1. Founder Ownership

Founders A and B each own 28.3% on a fully diluted basis.

Dilution from incorporation:

Started with 50% each (9,000,000 / 18,000,000 shares)
Diluted to 28.3% through:
- Option pool creation (15%)
- SAFE conversion (3.3%)
- Seed round (6.7%)
- Series A round (20%)

Current value:

Each founder's equity is worth $7,075,000 (at $25M valuation)

2. Employee Equity

Employee 1 has 0.7% (100,000 vested shares).

Current value: $175,000 (if company sold for $25M today)

Granted but unexercised options: 400,000 shares (2.7%, worth $700,000 if exercised)

Ungranted option pool: 1,500,000 shares (10%, available for future hires)

3. Investor Returns

SAFE investors:

Invested: $500,000
Current value: $825,000
Return: 1.65x (still early, not yet liquidity event)

Seed investors:

Invested: $1,000,000
Current value: $1,670,000
Return: 1.67x

Series A investor:

Invested: $5,000,000
Current value: $5,000,000 (just invested, same valuation)
Return: 1.0x

4. Liquidation Preferences

If company sold for $25M today:

Series A gets paid first: $5,000,000 (1x liquidation preference)
Series Seed gets paid second: $1,000,000 (1x liquidation preference)
Remaining for common: $25M - $5M - $1M = $19M

Common stock distribution (pro rata):

Founders (56.6% of common): $10,754,000 ($5,377,000 each)
Employees (3.3% of common): $627,000
SAFE investors (converted to Seed, already paid above)

Wait, that doesn't match the table above. Let me recalculate.

Actually, at $25M valuation, investors choose to convert:

If Series A converts to common:

Series A owns 20% of $25M = $5,000,000 (same as liquidation preference)
Indifferent to convert or take preference

At higher exits (e.g., $100M), investors convert to common:

Series A would own 20% of $100M = $20,000,000 (vs $5M preference)

At lower exits (e.g., $10M), investors take preference:

Series A takes $5M, Seed takes $1M, common gets $4M

5. What's Missing from This Cap Table

Vesting schedules: How many shares vest each month
Exercise prices: What employees pay to exercise options
Liquidation preference details: 1x participating vs non-participating
Anti-dilution provisions: Weighted average protection for down rounds
Conversion ratios: How preferred converts to common (typically 1:1)

Full cap tables (in Carta, Pulley, etc.) include all of these details.

Common Cap Table Mistakes

1. Not Creating Cap Table at Incorporation

Mistake:

Founders issue shares at incorporation but don't track in a cap table
Months later, no one remembers exact share counts

Fix:

Create cap table on Day 1 (even a simple Excel sheet)
Record every share issuance (founders, advisors, employees)

2. Issuing Shares Without Board Approval

Mistake:

Founder verbally promises equity to advisor
Advisor assumes they have 1% of company
Later, founder realizes board never approved (invalid grant)

Fix:

Every share issuance requires written board consent
Document in board minutes or unanimous written consent
Update cap table only after board approval

3. Not Tracking Vesting Schedules

Mistake:

Founder grants 100,000 options to employee with 4-year vesting
Cap table shows 100,000 shares (doesn't track vesting)
Employee leaves after 6 months (25% vested)
Cap table never updated (still shows 100,000 shares)

Fix:

Track vesting in cap table or separate schedule
Update cap table monthly for vested shares
Use cap table software (Carta, Pulley) to automate

4. Not Converting SAFEs/Notes on Cap Table

Mistake:

Company raises $500K in SAFEs
Cap table doesn't show SAFEs (only shows issued stock)
Founder tells new hire "You'll get 1% of the company" (forgets about SAFEs)
SAFEs convert at Series A, diluting employee more than expected

Fix:

Show SAFEs and convertible notes on cap table as "Convertible Securities"
Model conversion at different valuation caps
Calculate fully diluted including as-if converted SAFEs

5. Forgetting to Reserve Option Pool Shares

Mistake:

Cap table shows 10,000,000 issued shares (founders)
Founder grants 100,000 options to employee
Later realizes: never reserved shares for option pool (no authorized shares)
Must amend certificate of incorporation to increase authorized shares ($1K+ legal fees)

Fix:

Reserve option pool at incorporation (increase authorized shares)
Track "Authorized Shares" separately from "Issued Shares"
Ensure option pool is reserved before granting options

6. Showing Unvested Shares as Issued

Mistake:

Founder A receives 5,000,000 shares with 4-year vesting
Cap table shows 5,000,000 issued shares (all vested)
Founder A leaves after 1 year (25% vested)
Company can't repurchase unvested shares (cap table shows fully vested)

Fix:

Cap table should show:
- Issued shares (subject to vesting): 5,000,000
- Vested shares: 1,250,000 (25% after 1 year)
- Unvested shares (subject to repurchase): 3,750,000

7. Not Updating Cap Table After Amendments

Mistake:

Board approves accelerated vesting for departing founder (50% → 100%)
Cap table never updated (still shows 50% vested)
New investor gets inaccurate cap table at Series A

Fix:

Update cap table immediately after any equity event:
- New grants
- Exercises
- Vesting acceleration
- Transfers
- Cancellations

8. Mixing Up Pre-Money and Post-Money Calculations

Mistake:

Investor offers "$5M at $20M post-money"
Founder calculates: $5M / $20M = 25% (investor owns 25%)
Wrong! Post-money includes the investment.

Fix:

Post-money ownership: $5M / $25M = 20% (correct)
Pre-money ownership: $5M / $20M = 25% (if stated pre-money)
Clarify "pre-money" vs "post-money" in every term sheet

9. Not Planning for Option Pool Refresh

Mistake:

Create 10% option pool at seed round
Grant 9% to first 10 employees
Series A investor requires 15% pool (only 1% remaining)
Must refresh pool +5% (dilutes founders more than expected)

Fix:

Model 18-24 months of hiring before creating pool
Assume 25-40% annual attrition (some grants cancelled, recaptured)
Request option pool refresh at next funding round (dilutes everyone, not just founders)

10. Using Wrong Share Count for Ownership %

Mistake:

Startup has:
- 10,000,000 issued shares
- 2,000,000 option pool (reserved)
- Founder calculates ownership: 5,000,000 / 10,000,000 = 50%
Wrong! Must use fully diluted (includes option pool)

Fix:

Always calculate ownership on fully diluted basis
Fully diluted = issued + option pool + convertible securities (as-if converted)
Founder ownership: 5,000,000 / 12,000,000 = 41.7% (correct)

Cap Table Math Examples

Example 1: Incorporation (2 Founders, Equal Split)

Formation:

Founder A: 5,000,000 shares
Founder B: 5,000,000 shares
Total: 10,000,000 shares
Authorized shares: 20,000,000 (always authorize 2x issued shares for future option pool)

Ownership:

Founder A: 50%
Founder B: 50%

Par value: $0.00001 per share

Cost to founders: $50 each (5,000,000 × $0.00001)

Example 2: Adding Option Pool

Current cap table:

Founders: 10,000,000 shares (100%)

Board approves: 15% option pool

Option pool calculation:

To create 15% pool:

Pool / (Founders + Pool) = 15%
Pool = 0.15 × (10,000,000 + Pool)
0.85 × Pool = 1,500,000
Pool = 1,764,706 shares

New cap table:

Founders: 10,000,000 shares (85%)
Option pool: 1,764,706 shares (15%)
Total: 11,764,706 shares

Founder ownership:

Each founder: 5,000,000 / 11,764,706 = 42.5%

Example 3: Granting Stock Options to Employee

Current cap table:

Founders: 10,000,000 shares (85%)
Option pool: 1,764,706 shares (15%, all ungranted)
Total: 11,764,706 shares

Grant to Employee 1:

Grant: 100,000 stock options (0.85% of company)
Exercise price: $0.50 per share (409A FMV)
Vesting: 4 years, 1-year cliff

Updated cap table:

Founders: 10,000,000 shares (85%)
Granted options: 100,000 (0.85%)
Ungranted pool: 1,664,706 (14.15%)
Total: 11,764,706 shares

No dilution yet (employee hasn't exercised, just granted).

Example 4: Employee Exercises Options

Employee 1 vests 25,000 options (after 1 year) and exercises.

Employee pays:

Exercise cost = 25,000 shares × $0.50 = $12,500

Updated cap table:

Founders: 10,000,000 shares (84.9%)
Employee 1 (common stock): 25,000 shares (0.21%)
Granted but unexercised options: 75,000 (0.64%)
Ungranted pool: 1,664,706 (14.15%)
Total: 11,764,706 shares

Issued and outstanding shares: 10,025,000 (founders + employee exercised shares)

Fully diluted shares: 11,764,706 (includes unexercised options)

Example 5: SAFE Conversion

Current cap table:

Founders: 10,000,000 shares (82.1%)
Employees (exercised): 100,000 shares (0.8%)
Granted options: 400,000 shares (3.3%)
Ungranted pool: 1,664,706 shares (13.7%)
Pre-SAFE total: 12,164,706 shares

Outstanding SAFE:

Investment: $500,000
Valuation cap: $10,000,000
Discount: 20%

Series A terms:

Investment: $5,000,000
Pre-money valuation: $20,000,000 (before SAFE conversion)
Price per share: $2.00

SAFE conversion:

SAFE uses the better of:

Valuation cap: $10M
Discount price: $2.00 × 80% = $1.60 per share

Valuation cap is better (lower price = more shares).

SAFE price per share = $10M / 12,164,706 = $0.822
SAFE shares = $500,000 / $0.822 = 608,273 shares

(Simplified calculation; actual conversion uses more complex formula.)

Post-SAFE cap table (before Series A):

Founders: 10,000,000 shares (78.2%)
Employees: 100,000 shares (0.8%)
Options: 2,064,706 shares (16.2%)
SAFE investors: 608,273 shares (4.8%)
Pre-Series A total: 12,772,979 shares

Example 6: Series A Investment

Current cap table (post-SAFE):

Pre-money fully diluted: 12,772,979 shares

Series A terms:

Investment: $5,000,000
Pre-money valuation: $20,000,000
Price per share: $20M / 12,772,979 = $1.565 per share
Series A shares: $5M / $1.565 = 3,194,888 shares

Post-Series A cap table:

Founders: 10,000,000 shares (62.6%)
Employees: 100,000 shares (0.6%)
Options: 2,064,706 shares (12.9%)
SAFE investors (converted): 608,273 shares (3.8%)
Series A investors: 3,194,888 shares (20.0%)
Total: 15,967,867 shares

Founder dilution:

Incorporation: 50% each
Post-option pool: 42.5% each
Post-SAFE: 39.1% each
Post-Series A: 31.3% each

Total dilution: 37.4% (from 50% to 31.3%)

When to Update Your Cap Table

Update your cap table immediately after each of the following events:

1. Incorporation

Issue founder shares
Record initial ownership split

2. Stock Option Pool Creation

Reserve shares for option pool
Increase authorized shares (if needed)

3. Stock Option Grants

Move shares from "Ungranted Pool" to "Granted Options"
Record grant date, vesting schedule, exercise price

4. Stock Option Exercises

Move shares from "Granted Options" to "Issued Common Stock"
Record exercise date, exercise price paid, # shares exercised

5. Stock Option Cancellations

Employee leaves with unvested options (cancel and return to pool)
Employee leaves with vested but unexercised options (typically 90-day exercise window, then cancelled)

6. Restricted Stock Grants

Issue shares immediately (subject to vesting)
Track vesting schedule

7. Vesting Events

Update "Vested" vs "Unvested" columns
Typically monthly (for employees) or quarterly (for advisors)

8. SAFEs or Convertible Notes Issued

Add to cap table as "Convertible Securities"
Track valuation cap, discount, interest rate (if note)

9. SAFE or Note Conversion

Remove from "Convertible Securities"
Add converted shares (typically Series Seed or Series A preferred)

10. Priced Equity Rounds

Issue new preferred stock (Series Seed, A, B, C, etc.)
Update ownership percentages (all shareholders diluted)

11. Stock Transfers

Founder secondary sale (sells shares to investor)
Gift to family member
Transfer to trust

12. Stock Repurchases

Company buys back shares from departing founder or employee
Remove shares from cap table (shares retired)

13. Stock Splits or Reverse Splits

Multiply (or divide) all share counts by split ratio
Update par value accordingly

14. Acquisition or Exit

Final cap table (shows payout to each shareholder)
Used for escrow, earnout, and distribution calculations

Best practice: Update cap table within 24 hours of any equity event.

Cap Table Software

Manual cap table management (Excel/Google Sheets) works for early-stage startups, but cap table software becomes essential after:

Raising institutional capital (Series A+)
Granting options to 10+ employees
Managing SAFEs, convertible notes, or multiple share classes

Cap Table Software Comparison (2025)

Software	Free Tier	Paid Plans	409A Included	Best For
Carta	Yes (25 stakeholders)	$2,800/yr+	Add-on ($1K-$5K)	Post-Series A, full lifecycle
Pulley	No	$500-$2K/mo	Included	Fast 409A, modern UI
AngelList Stack	Yes (unlimited investors)	$1,600-$5,600/yr	Included (higher tiers)	Rolling funds, syndicate GPs
Capboard	Yes (10 stakeholders)	€99-€299/mo	Not offered	European startups
Astrella (fka Ledgy)	No	$500-$1,500/mo	Add-on	European startups, ESOP mgmt
Shareworks (Morgan Stanley)	No	Custom pricing	Add-on	Series C+, pre-IPO

Features to Look For

Feature	Why It Matters
409A valuations	Required annually (and at each funding round) for stock option pricing
Scenario modeling	Model dilution from future funding rounds
Document generation	Auto-generate stock certificates, option agreements, board consents
Employee portal	Employees can view vested equity, model exit scenarios
Investor portal	Investors can view ownership, upload signed documents
ASC 718 compliance	GAAP accounting for stock-based compensation expense
Excel export	Export cap table to Excel for investor due diligence

When to Switch from Excel to Software

Stick with Excel if:

Pre-seed or seed stage (no institutional investors yet)
<10 option holders
No SAFEs or convertible notes (simple cap table)

Switch to software if:

Raised Series A+ (institutional investor may require Carta)
10+ option holders (manual tracking error-prone)
Managing SAFEs, notes, multiple share classes
Need 409A valuations (software often includes discount)
Hiring head of finance or CFO (expects professional tools)

Migration timeline:

Carta implementation: 4-8 weeks (upload all historical grants, cap table audit)
Pulley implementation: 1-2 weeks (faster onboarding)

FAQ

What is a cap table?

A cap table (capitalization table) is a spreadsheet or database that tracks who owns what percentage of your company. It lists all shareholders, their share counts, security types (common stock, preferred stock, options, etc.), and ownership percentages.

How do I calculate fully diluted shares?

Fully Diluted Shares =
    Issued Common Stock
  + Issued Preferred Stock (as-if converted)
  + Stock Option Pool (all reserved shares)
  + Warrants
  + SAFEs/Convertible Notes (as-if converted)

What's the difference between issued and outstanding shares vs fully diluted shares?

Issued and outstanding shares: Only shares that have been issued (excludes ungranted options, unconverted SAFEs)
Fully diluted shares: All shares that exist or could exist (includes all options and convertible securities as-if exercised/converted)

Most ownership discussions use fully diluted basis.

How do I calculate my ownership percentage?

Ownership % = Your Shares / Fully Diluted Share Count

Example:

You own: 5,000,000 shares
Fully diluted: 15,000,000 shares
Your ownership: 5,000,000 / 15,000,000 = 33.3%

What is dilution?

Dilution occurs when a company issues new shares, reducing the ownership percentage of existing shareholders.

Common dilution events:

Creating or expanding stock option pool
Issuing shares to investors in funding rounds
SAFEs or convertible notes converting to equity
Employees exercising stock options

Example: You own 50% (5M of 10M shares). Company issues 5M new shares to investor. You now own 33.3% (5M of 15M shares). You've been diluted by 16.7%.

How much dilution should I expect per funding round?

Round	Typical Investor Stake	Founder Dilution
SAFE / Pre-seed	5-10%	5-10%
Seed	15-20%	15-20%
Series A	20-25%	20-25%
Series B	15-20%	15-20%
Series C+	10-20%	10-20%

Cumulative dilution from 50% (at incorporation) to 15-25% (at Series C) is normal.

What is a stock option pool and how big should it be?

A stock option pool is a reserve of shares set aside for employee stock options.

Typical sizes:

Pre-seed: 10-15%
Seed: 15-20%
Series A+: 15-20% (refreshed at each round)

Why size matters: Too small (5%) = can't hire senior talent. Too large (25%) = excessive dilution to founders.

What's the difference between a pre-money and post-money option pool?

Pre-money option pool (standard):

Option pool created before the investment
Dilutes founders (not investors)
Investor gets full 20% ownership (not diluted by pool)

Post-money option pool (rare):

Option pool created after the investment
Dilutes founders and investors proportionally
More founder-friendly (1-3% less dilution to founders)

Investors almost always require pre-money option pool.

How do SAFEs affect my cap table?

SAFEs (Simple Agreement for Future Equity) convert to preferred stock at your next priced round.

On cap table:

Show as "Convertible Securities" (not yet shares)
Include in fully diluted calculation (as-if converted at valuation cap)

Conversion: At Series A, SAFE converts using the lower of:

Valuation cap (e.g., $10M)
Series A price with discount (e.g., 20% discount)

Result: SAFE investors get more shares than Series A investors (for the same dollar amount) because they invested earlier.

When should I start using cap table software?

Use Excel/Google Sheets if:

Pre-seed or seed stage
<10 option holders
Simple cap table (no SAFEs, convertibles, or multiple share classes)

Switch to software (Carta, Pulley, etc.) if:

Raised Series A or later
10+ option holders
Managing SAFEs, convertible notes, multiple share classes
Need 409A valuations (software often includes discount)

Migration takes 1-8 weeks (depending on complexity).

How do I fix a cap table mistake?

Common mistakes:

Missing board approval for past grants
Incorrect share counts
Not tracking vesting
Missing SAFE or convertible note

Fix:

Identify the error: Review all historical documents (board consents, stock purchase agreements, option grants)
Correct the cap table: Update share counts, ownership percentages
Ratify if needed: If shares were issued without board approval, hold board meeting to ratify (retroactive approval)
Document corrections: Note in board minutes why cap table was corrected
Re-export: Provide corrected cap table to investors, employees (with explanation)

When to hire a lawyer: Complex errors (e.g., missing board approval for founder shares) may require corporate cleanup.

What happens to my cap table when I sell my company?

At acquisition, cap table determines payout to each shareholder.

Liquidation waterfall:

Series A, B, C (preferred stock): Paid first (1x liquidation preference per share)
Common stock (founders, employees): Paid last (pro rata after all preferred paid)

Example:

Company sells for $50M.

Series A invested $5M (1x preference) → Gets $5M first
Series B invested $15M (1x preference) → Gets $15M second
Common stock → Gets remaining $30M (split pro rata by ownership %)

If sale price is high (e.g., $200M), preferred converts to common (gets higher payout from ownership % than liquidation preference).

How do I model future dilution?

Use cap table software (Carta, Pulley) to model scenarios:

Next funding round: "$10M at $50M post-money, +5% option pool refresh"
Exit: "Acquisition at $100M (model payout to each shareholder)"
Option pool refresh: "Expand pool from 10% to 15% (who gets diluted?)"

Manual modeling:

Create copy of current cap table
Add new shares (investor, option pool, etc.)
Recalculate ownership percentages

Key question: "What will I own after Series B, and what will my shares be worth?"

Resources

Cap Table Templates

Promise Legal Cap Table Template — Free Excel template with dilution modeling
Carta Free Plan — Free for 25 stakeholders, includes cap table, 409A valuations (paid add-on)
Pulley Free Cap Table Tool — Model dilution from future funding rounds

Cap Table Software

Carta — Industry standard for Series A+ companies ($2,800/year+)
Pulley — Fast 409A valuations, modern UI ($500-$2,000/month)
AngelList Stack — Free tier for founders and investors ($1,600-$5,600/year for premium)
Capboard — European cap table software (€99-€299/month)

Dilution Calculators

Capboard Dilution Calculator — Calculate ownership after funding rounds
Neos Chronos Equity Calculator — Model dilution from SAFEs, notes, equity rounds

Educational Resources

Carta's Guide to Cap Tables — Comprehensive overview
Cooley GO: Option Grants (Fully Diluted vs Issued and Outstanding) — Key distinction for option grants
Pillsbury Propel: Cap Table Math Basics — Step-by-step examples
American Bar Association: Cap Table Math — Legal perspective

Related Guides

Equity Splits: How to Divide Founder Equity — Calculate fair founder ownership
Option Pool Sizing: How Much Equity to Reserve — Plan employee equity grants
Dilution Modeling: Forecast Ownership Through Series C — Project future dilution
409A Valuations: Pricing Your Stock Options — Determine exercise price for options

Get Help with Your Cap Table

Building and maintaining an accurate cap table is critical for fundraising, employee equity, and eventual exit.

If you need help with:

Creating your first cap table
Auditing and cleaning up existing cap table
Modeling dilution from future funding rounds
Migrating to cap table software (Carta, Pulley, etc.)
Fixing cap table errors or missing documentation

Contact Promise Legal for a cap table consultation.

Typical engagement:

Cap table audit: $2,000-$5,000 (review historical grants, identify errors, provide corrected cap table)
Cap table setup: $1,000-$3,000 (build cap table from incorporation documents, set up software)
Dilution modeling: $500-$2,000 (model 3-5 funding scenarios, forecast founder ownership)

This guide was last updated in January 2025. Cap table practices, software features, and terminology may evolve over time. Consult with a startup attorney or CFO for advice specific to your company.