Pre-Money vs Post-Money SAFEs: Matching Terms to Stage
Originally sent to Play Money subscribers · July 2026
Part of our ongoing Tuesday series on how angel investing deal mechanics actually work — SAFEs, valuation caps, discounts, and the structures behind every check.
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💎 A reader hit reply on last week's newsletter asking me to break down pre-money vs post-money SAFEs, and when the discount matters.
I am getting over a very bad case of post-FIFA 🏆⚽ post-TdF 🟡🚴 blues, so angel mechanics is the perfect distraction.
A SAFE isn't one instrument. It's the same paperwork playing a different role depending on where in the funding cycle it shows up - and the terms used adjust accordingly.
-- C2K
Quick refresher
A SAFE (Simple Agreement for Future Equity) is not a loan and not equity yet. You send money. It converts to equity at the next priced round, at terms set by a valuation cap, a discount to the next priced round's price, or both. read more here
Post-money valuation cap: the cap is the company's value regardless of how much money goes in, so your ownership is simply investment ÷ cap.
Pre-money valuation cap: the cap is the company's value before your money goes in, so your dollars buy a slice of a company that's worth cap + investment.
Math Break: A company raises $2M on a SAFE w/a $10M cap.
- Post-money cap buys 20% of the company
- Pre-money cap buys 16.7%
Discount: you convert at a set percentage off the price per share the new investors pay (aka: pre-money valuation) in the priced round (20% discount = you pay 80 cents for their dollar).
Lower-of at conversion. When a SAFE has both a cap and a discount off the priced round, you get whichever is lower. They do not stack (aka: you don't get a discount off of the valuation cap, nice try!)
Play around with it in our SAFE Simulator.
Here's how it all shows up in action
Post-Money SAFEs
Mostly used: Early round where no prior priced round has happened.
- Valuation cap set by the founders or an early stage fund based on gut and comps so money flows in without friction.
- No discount because the math is messy and most SAFEs are priced so the discount doesn't matter.
🌶️ Fun fact: Post-money SAFEs are investor friendly. Your max conversion price is set by that fixed valuation cap. Additional SAFEs dilute the founder, not you. Founders are ok with this because dilution is much easier to track with post-money terms. It's a bit of a lazy tax.
Pre-Money SAFEs w/a discount
Mostly used: A bridge or extension round after a priced round.
Pre-money is smarter because a valuation anchor exists from the past priced round. Because the cap could be closer to the future round price, the discount ensures upside for acting early.
🌶️ Exceptions: You will sometimes see a pre-money SAFE used at the seed stage. Pre vs Post in this case is probably a founder preference. Either the founder is new to fundraising and grabbed an old document or is a sophisticated fundraiser and wants to carefully manage dilution.
Uncapped is back, and YC is why
Uncapped SAFEs used to only be used with early friends and family rounds, but they are popping up again because of YC, the buzzy SF accelerator.
YC's new standard terms are no cap, no discount, but MFN.
Uncapped means the SAFE has no valuation ceiling. Will your investment convert at a $10M valuation or a $100M valuation? Who knows!
Yes, if your jaw is dropped, you are not alone.
MFN (Most Favored Nation) is a separate clause that lets you swap your terms for better ones if a later SAFE investor negotiates them.
As an angel, I want a clear agreement as to how I am getting rewarded for investing early. Uncapped notes don't provide that. MFN only tempers the blow a bit. Most investors feel the same way (only 9% of SAFEs are uncapped).
If you see one, take a beat. IMO they are hard to justify.
SAFE Cheat Sheet
The question with SAFEs is: How am I compensated for investing early? A low valuation cap? An appropriate discount off of the next round? Both?
- Match the instrument to the stage.
- Pre-seed or seed: post-money, defensible cap. No discount.
- Bridge or extension off a priced round: pre-money with a discount.
- Uncapped: only with MFN, only when you truly trust the founder.
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