What a SAFE is, and how it differs from a priced round
Most California seed financing now happens on a four-page document that deliberately postpones the hardest question. Understanding what it defers is the whole point.
A priced equity round requires agreeing what the company is worth. That negotiation is slow, expensive, and largely guesswork at the seed stage, when there is little to value beyond a team and an idea.
The SAFE — a simple agreement for future equity — sidesteps it. An investor gives money now in exchange for shares later, when a priced round finally happens and someone with more information sets the number.
What it is not
A SAFE is not debt. There is no interest, no maturity date, and no repayment obligation. If the company never raises a priced round and never sells, the SAFE simply never converts.
It is also not equity yet. SAFE holders are not shareholders, generally do not vote, and do not appear on the cap table as owners until conversion. That is convenient during fundraising and easy to lose track of afterwards.
The two terms that matter
A **valuation cap** sets a ceiling on the price at which the SAFE converts. If an investor holds a SAFE with a $10m cap and the priced round happens at $30m, the SAFE converts as though the company were worth $10m — so the investor gets roughly three times the shares their money would otherwise buy.
A **discount** does something similar by a different route, converting at a percentage below the round price. Where both are present, the investor typically receives whichever is more favourable to them.
Post-money, and why it stacks
The widely used SAFE templates are post-money, meaning the ownership percentage an investor receives is fixed relative to the company's value after all SAFEs convert.
That is clearer for investors and more dangerous for founders, because each new SAFE dilutes the founders rather than the earlier SAFE holders. Raising four times on SAFEs before a priced round is common, and the combined dilution is frequently larger than any single conversation suggested.
“The reason founders are surprised at conversion is rarely the terms of any one SAFE. It is the arithmetic of several.”
Modelling it before you sign
- Build the cap table as though every outstanding SAFE has already converted at its cap. That is the ownership you actually have.
- Add the option pool the next round will require, since it usually comes out of pre-round ownership.
- Run the same model at a low priced-round valuation, not just an optimistic one. Caps bite hardest when the round is smaller than hoped.
When a priced round is better
SAFEs suit speed and small amounts from many investors. Once the raise is large enough that governance matters — a board seat, information rights, protective provisions — the deferral stops being an advantage, because those terms have to be negotiated anyway.
At that point the valuation conversation is unavoidable, and having it explicitly is usually cheaper than having it implicitly through a stack of caps.