Our first term sheet asked for a 20% option pool. I almost signed it without blinking, because everyone told me 20% was just what seed rounds looked like. It isn't. If you're asking whether your option pool is too big, the honest answer for most seed startups is yes: the real standard is 10-15%, and the extra 5-10 points you might be handing over dilutes only you, not your investor.
Where the 20% number actually comes from
A 20% pool isn't a rule. It's an anchor a VC opens with, the same way a car dealer opens above sticker price. Some funds default to it because it's the number their template term sheet has always used, not because your hiring plan needs it.
The data backs this up: standard option pools run 5-10% at pre-seed and 10-15% at seed, enough to cover a lead engineer, a head of product, and an early sales hire for 18-24 months. Twenty percent is the aggressive end, not the middle of the market. Founders who've pushed back with a real hiring plan have taken pools from 18% down to 12% in the same negotiation, just by showing named roles and market-rate grants instead of accepting a round number.
The mistake isn't just size, it's timing
Even if you land on the right percentage, how the pool gets created matters as much as how big it is. Most VCs ask for the pool to be created or topped up pre-money, before their check clears. That means it comes entirely out of the founders' side of the cap table. The investor's ownership is calculated after the pool exists, so they never feel the dilution. You do. The full mechanics of that clause, worked out with real cap table math, are worth reading before your next term sheet, and we've separately covered the exact script for negotiating your pool shuffle down.
That structural detail is worth roughly 2-6% of your company in a typical seed or Series A round. If you're already negotiating pool size down, this is the second lever: ask whether any increase can happen post-money instead, so new investors absorb their share of it too.
Why a pool that's too big is a problem even if you never notice the dilution
A pool that's too big doesn't just cost equity today. It sits on your cap table half-empty, and that shows up at your next raise in a way most first-time founders don't expect.
Series A investors look at how much of your existing pool is actually allocated. A pool that's 20% of the company but only 40% granted out reads as either poor planning or a warning that you're about to ask for another huge top-up before they've even priced the round. A pool sized to a real 18-month plan and mostly allocated by the time you raise again tells a cleaner story: you hire deliberately, and you don't treat equity as a rounding error.
There's also a compounding cost. Unallocated pool doesn't disappear between rounds, it usually gets refreshed and expanded again at the next raise, on top of whatever's left. Oversize it twice and you've handed away meaningful ownership for headcount you never hired.
How to actually size it
Skip the round number entirely and build the pool from your hiring plan instead. If you want the full worked math on sizing a pool against a real hiring plan, we broke that down separately.
- List every role you expect to fill in the next 18-24 months, not just "engineers," but named seniority levels.
- Pull current market-rate equity grants for each level. A senior engineer at a seed-stage company typically gets a materially different grant than a VP-level hire, and lumping them together inflates the ask.
- Add 15-20% slack for one or two roles you haven't identified yet, not a blanket buffer on top of the whole pool.
- Total it as a percentage of the post-money cap table. That's your real number, and it's very often below what the term sheet first asked for.
Bring that math into the negotiation instead of a counter-percentage. "We need 11%, here's the plan" is a harder number to argue with than "20% feels high."
What this actually costs you
The math is not abstract. On a company that exits for a few hundred million dollars, the difference between negotiating your pool down to a realistic size versus accepting the first number can run into the high six figures per founder. It's the same order of magnitude as a full extra year of founder salary, decided in a single afternoon of term sheet review.
Frequently asked questions
Is a 20% option pool normal for a seed round?
It's common as an opening ask, but it's on the aggressive end. Most seed rounds settle at 10-15% once founders push back with a specific hiring plan instead of accepting the VC's default number.
Does a bigger option pool protect me from running out of equity for hires?
Not really. An oversized pool just sits unallocated and gets refreshed again at your next round anyway. A pool matched to a real hiring plan protects you better, because it doesn't cost you extra dilution twice.
Who pays for the option pool, founders or investors?
Whoever's side of the cap table it's created on before the round prices. Pre-money pool creation, which is the default in most term sheets, means founders bear the full cost. A post-money pool splits it proportionally with the incoming investor.
Can I negotiate option pool size after the term sheet is signed?
It's far harder. Pool size and timing are two of the most negotiable line items before signing and two of the least negotiable after. Raise it before you sign, not during the closing docs.
How much of my option pool should be allocated by my next raise?
Investors generally want to see the majority of an existing pool granted out by the next round, not sitting empty. An unallocated pool signals either slow hiring or an upcoming ask for more dilution.
If a term sheet lands with a pool size attached, don't counter with a gut-feel percentage. Build the hiring plan first, then bring the number. It's the difference between negotiating from a guess and negotiating from a plan your investor can't easily argue with.