Before you sign a seed term sheet, ask one question: how big is the option pool, and whose equity does it come out of? The honest answer is usually yours. A pool built into your pre-money valuation dilutes founders first, not the investor writing the check.
Standard seed-stage option pools run 10 to 15 percent of fully diluted shares, expanding to 15 to 20 percent by Series A. Carta's own benchmark data shows the middle half of seed-stage companies see roughly 20 percent dilution from the pool alone, before any new money even lands.
What an option pool actually is (and why the size fight matters)
An option pool is a block of shares set aside for future hires, advisors, and consultants. It sits inside your cap table, not outside it. Every share reserved for a future engineer is a share that isn't yours anymore, the moment the pool gets created.
Most investors ask for the pool to be built pre-money, meaning it's carved out of the company's value before the new investor's cash is added. As Ledgy explains it, a pre-money pool dilutes existing shareholders while the incoming investor's ownership stays exactly where it was priced, which is why term sheets calling for a pre-money pool are considered investor-friendly by default.
Here's the mechanic in real numbers. If you own 10,000 shares (100 percent of the company) and your investor requires a 1,500-share option pool pre-money, you now own 10,000 of 11,500 shares, or 87 percent. You gave up 13 percent before a single dollar of new investment landed. On a $2M seed at an $8M pre-money valuation, the difference between a 20 percent pool and a 12 percent pool is roughly $640,000 of equity value staying with founders instead of sitting unused in a pool.
The mistake almost every first-time founder makes
Founders accept whatever pool percentage the lead investor proposes because it shows up as a single line in the term sheet and feels non-negotiable. It isn't.
The number a VC proposes is usually a round figure, 15 percent or 20 percent, chosen so the pool comfortably outlasts your next 18 to 24 months of hiring. SheetVenture's stage benchmarks confirm the ask is rarely built from your actual hiring plan. Investors like larger pools because unissued options dilute you, not them, so a bigger pool up front means less dilution risk on their side later.
The second mistake is treating the pool as one number instead of a hiring roadmap in disguise. If you can't say which roles the pool covers and roughly what percentage each one gets, you have no basis to push back on the size a term sheet proposes.
How to size your option pool correctly
- Build a hiring plan for the next 18 to 24 months. List every role you expect to fill before your next round, not a wishlist. A seed-stage plan is usually a lead engineer, a first sales or growth hire, and maybe one senior generalist.
- Assign a grant range to each role. VP-level hires typically land between 0.5 and 1.5 percent. Senior individual contributors sit closer to 0.1 to 0.5 percent. Advisors usually get 0.1 to 0.25 percent each.
- Add refresh grants for existing team members. Early hires often need a top-up before the next round to stay retained. Budget for it now instead of renegotiating later.
- Total the plan and compare it to the top-down benchmark. If your bottoms-up number lands at 11 percent and the investor is asking for 20 percent, you have a specific, defensible number to negotiate from, not just a feeling that the ask is too high.
- Push on pre-money versus post-money treatment. Ask directly whether the pool is calculated pre-money or post-money. A pool moved to post-money spreads the dilution across all shareholders, including the new investor, instead of landing entirely on the existing cap table.
What this looks like with real numbers
A founder raising a $2M seed at an $8M pre-money valuation gets asked for a 20 percent pre-money option pool. Their actual hiring plan, mapped role by role, only requires 12 percent to cover the next 20 months. Bringing the pool down from 20 to 12 percent keeps roughly 8 percent of the company, worth about $640,000 at that valuation, out of a pool nobody is using yet.
That negotiation doesn't require an aggressive lawyer. It requires a one-page hiring plan attached to the term sheet discussion, showing exactly which roles the pool needs to cover and why 12 percent, not 20, gets the job done.
If your cap table is already carrying prior SAFE note stacking from earlier rounds, the option pool conversation compounds fast. Run both numbers in the same model before you negotiate either one.
The 30-day move
Before your next fundraising conversation, write out your hiring plan for the next 18 to 24 months on a single page: role, expected start quarter, and a grant percentage range for each. Bring that page into every term sheet negotiation. It turns "the pool feels too big" into a specific, fundable number the investor can't wave away.
This is also the right moment to fold the exercise into a broader cap table cleanup before your next round, since option pool sizing, prior grants, and vesting schedules all live on the same spreadsheet.
Frequently asked questions
What percentage should an option pool be at seed stage?
Most seed-stage option pools run 10 to 15 percent of fully diluted shares, based on Carta and industry benchmark data, though pre-seed pools can be as small as 5 to 10 percent.
Does the option pool dilute founders or investors?
When the pool is built pre-money, as most term sheets require, it dilutes existing shareholders, which at seed stage usually means the founders, not the incoming investor.
Can you negotiate the size of an option pool?
Yes. A hiring plan that maps specific roles to specific grant ranges gives you a defensible number to counter an investor's round-figure ask, and it can meaningfully reduce founder dilution.
What's the difference between a pre-money and post-money option pool?
A pre-money pool is carved out of the company's value before new investment is added, so existing shareholders absorb the dilution. A post-money pool spreads that dilution across everyone, including the new investor.
How often does the option pool need to be topped up?
Pools are typically refreshed at each funding round as hiring accelerates, though a well-planned pool at seed should comfortably cover 18 to 24 months without a mid-round top-up.
Does option pool size affect share price in a round?
Yes. A larger pre-money pool lowers the effective price per share, since more shares are created before the round closes, which directly affects founder ownership percentage.
If you're already budgeting equity for your first marketing or sales hire, the option pool conversation belongs in the same spreadsheet as that decision, not a separate one you deal with after the term sheet is signed.