A SAFE is the fastest way to raise early money — and the most common source of cap-table surprises two years later. Here’s the five-minute version of what founders sign without reading.
The mechanics in one paragraph
A SAFE (Simple Agreement for Future Equity) is money now for shares later. It converts at your next priced round, at the better (for the investor) of two prices: the valuation cap or the discount. No interest, no maturity date, no board seat. That simplicity is why a SAFE closes in days while a priced seed takes months.
Where founders get surprised
- Stacked SAFEs compound silently. Three SAFEs at different caps don’t feel like dilution while you’re raising them. At conversion they can eat 25–35% of the company before your Series A investor even sits down.
- Post-money SAFEs shift dilution to founders. The standard changed in 2018. Post-money SAFEs fix the investor’s percentage — meaning every additional SAFE you stack dilutes you, not them.
- The cap is a signal, not just a term. A $30M cap on a pre-product company tells your next lead what you think you’re worth. If the priced round comes in below the cap, everyone’s math gets awkward.
The habit that prevents all of it
Keep a live pro-forma cap table that models every SAFE converting at your realistic next-round valuation — not your hopeful one. Update it every time you sign anything. The founders who do this negotiate from clarity; the ones who don’t discover their true ownership the week of the Series A, which is the single worst week to learn it.
A SAFE-conversion modeler is on our tools roadmap — until then, we’ll happily walk your cap table with you. Get in touch.
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