What Angels Get Wrong About SAFEs
Originally sent to Play Money subscribers · March 2025
Part of our ongoing Tuesday series on how angel investing deal mechanics actually work — SAFEs, convertible notes, valuations, and the structures behind every check.
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💎 I met a founder recently who’d raised $6M on SAFEs over 6 years. Eight different post-money caps. I asked him how much of his own company he’d own after conversion.
-- C2K
He couldn’t tell me. And neither could a fund manager who invested on one of those SAFEs. GULP!
SAFEs are one of the most powerful tools (and most angel-friendly tools) invented for startups, but there are some devils in the details.
So what is a SAFE?
A promise of future equity. YC designed it so founders can close one investor, keep building, and close the next one next week. The whole raise happens asynchronously for a fraction of the legal cost.
Your founder closes you on Tuesday and is back to building on Wednesday.
The key number on every SAFE is the post-money cap. That’s what sets your ownership.
Your investment ÷ the post-money cap = your percentage at conversion. $100K into a $5M cap = 2%. Now add more SAFEs.
Round 1: You invest $100K at a $5M cap. You own 2%.
Round 2: Another angel invests $200K at a $10M cap. They own 2%. You still own 2%. Their SAFE came out of the founder’s stake.
Round 3: Priced Series A at $20M pre-money, $5M invested. All SAFEs convert simultaneously. Now everyone dilutes equally: you go to 1.6%, the other angel to 1.6%, Series A gets 20%.
Post-money SAFEs are non-dilutive until conversion. Every SAFE that stacks after yours dilutes the founder, and your position stays intact. Dilution only happens at the priced round, when everyone’s percentage drops together.
Why SAFEs make mildly experienced angels uneasy
Once you have a few deals under your belt, SAFEs start to feel uncomfortable. You don’t hold stock. You can’t point to a share certificate. QSBS treatment is in a grey zone until conversion.
It can feel like you don’t really own anything.
That discomfort is understandable, but the math tells a different story. The non-dilution protection is real. And once your SAFE converts to qualified stock at a priced round, QSBS can apply. The instrument is doing more for you than it feels like.
The fair criticism
SAFEs were built for pre-seed and bridges. When they get past that stage, the founder absorbs all the stacking pain.
Priced rounds have historically been expensive and time-consuming, which is why SAFEs became the default. Tools like Simple Seed promise to make lightweight-priced rounds more accessible, but they’re not widely used yet. And given the non-dilution protection angels (and increasingly early-stage fund managers) get from SAFEs, it would likely be the founder who pushes for a priced round.
The math is on your side.
Next week: why the people telling you convertible notes are better are wrong.
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