You are likely about to negotiate a term sheet where the investor demands a "standard" 20% option pool. If you sign that without running the math on the pre-money shuffle, you are voluntarily deleting your own equity before the wire hits the bank.
TL;DR: An option pool calculator determines the percentage of equity reserved for future employees, typically taken entirely from the founders' ownership stake prior to new investment.
Benchmark: Seed stage pools typically land in the 10-15% range.
Rule: Build a hiring plan first; never agree to a flat percentage without mapping the roles. This requires real customer development and a clear hiring roadmap.
Warning: The "Pre-Money Shuffle" means the pool is calculated on the post-money valuation but subtracted from your pre-money valuation.
Core Definitions
Option Pool: Shares set aside to attract and retain talent, usually authorized before a funding round closes.
Pre-Money Shuffle: The investor tactic of requiring the option pool to be included in the pre-money valuation, effectively forcing founders to pay for the dilution.
Fully Diluted Basis: The total number of shares assuming all convertibles, warrants, and options are exercised.
The Asset (Copy This)
Use this Dilution Impact Table to see exactly how increasing the option pool size reduces your ownership. (For a fuller picture, see our cap table template or seed cap table builder.)
Scenario: You are raising $1,000,000 on a $4,000,000 Pre-Money Valuation.
Post-Money Valuation: $5,000,000.
Investor Ownership: 20% fixed ($1M / $5M).
Option Pool Size | Pool Value ($) | Founder Ownership | Impact on You |
|---|---|---|---|
10% (Conservative) | $500,000 | 70% | Standard dilution. |
15% (Moderate) | $750,000 | 65% | You lost an extra 5% of the company. |
20% (Investor "Standard") | $1,000,000 | 60% | You lost 10% of the company to "hiring buffer." |
Sample math:
The Trap: In the 20% pool scenario, the investor still gets their 20%. The pool gets 20%. You are left with 60%.
The Shuffle: Even though the pool is calculated on the $5M post-money ($5M * 20% = $1M), that $1M value is carved out of your $4M pre-money value.
Result: Your effective pre-money valuation drops from $4M to $3M.
Next Steps: Closing the Round
Mastering the nuances of the option pool calculator is a necessary step for cap table hygiene. The investor logic here is simple: Investors ask for a larger pool to de-risk their investment against future dilution, not to help you hire. If you don't calculate the 'shuffle', this equity comes out of your pocket. Fight for a smaller pool based on a real hiring plan. Validating your market with a proper market research and competitive analysis can give you leverage. After the docs are signed, get back to building immediately — as seen in data on why startups fail, running out of cash or failing to find market need are far bigger threats than minor pool differences.
FAQ
What is the average option pool size for Seed rounds?
Most seed stage deals settle between 10-15%. If an investor demands 20% at the seed stage without a massive hiring plan to justify it, they may be trying to lower their effective price per share.
Does the option pool come out of pre-money or post-money?
In most venture deals, the option pool is created from the pre-money valuation. This means the dilution hits the existing founders and shareholders exclusively, while the new investors buy in after the pool is created.
