Understand how SAFEs work with interactive examples and scenarios
A SAFE (Simple Agreement for Future Equity) is an investment contract that gives investors the right to receive equity in a future priced round. Created by Y Combinator in 2013, SAFEs have become the standard for early-stage startup fundraising.
The maximum valuation at which the SAFE converts to equity, protecting early investors if your company gets very valuable.
A percentage discount off the Series A price. Typically 15-25%, rewarding early risk.
If you offer better terms to a later SAFE investor, earlier investors automatically get those terms.
Post-money SAFEs include the SAFE amount in the cap. Pre-money doesn't. Post-money is now standard.
Adjust the values to see how different scenarios affect SAFE conversion.
Pro-rata rights let SAFE investors maintain their ownership percentage in future rounds by investing more money.
| Feature | SAFE | Priced Round |
|---|---|---|
| Legal Complexity | ✓ Simple (5 pages) | Complex (50+ pages) |
| Legal Costs | ✓ ~$0-2K | $15-50K |
| Speed to Close | ✓ Days | Weeks/Months |
| Board Seats | Typically none | Often included |
| Investor Protections | Minimal | Extensive |
| Valuation Set | Deferred to priced round | Set immediately |
| Best For | Pre-seed, Seed | Series A and beyond |
Stacking multiple SAFEs at different caps creates a confusing cap table and can surprise you at conversion.
A $2M cap seems great now, but if you grow fast, early investors will own a huge chunk.
Post-money caps mean the SAFE is already counted. $1M at a $10M post-money = exactly 10%, not "up to 10%".
Pro-rata rights, information rights, and MFN clauses often come in side letters. Track them!
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