Article · 15 min read
Understanding SAFEs and Priced Equity Rounds
Kirsty Nathoo · Y Combinator Free Beginner
This is the source document for the entire SAFE debate, written by YC's CFO who papered thousands of these. It walks the actual dilution math (why post-money SAFEs are cleaner than pre-money), what a priced round buys you that a SAFE does not (defined ownership, a board), and the trap of stacking SAFEs at low caps that you only reconcile at the Series A. Read this before you copy any template.
- A SAFE is not debt: no interest, no maturity date, no repayment, which is why it closes in days while a priced round takes weeks of lawyering
- Post-money SAFEs make your dilution knowable at signing; that clarity is the whole reason YC moved off the pre-money version
- Price the round when investors want defined ownership and a board seat, or once stacked SAFE caps make the conversion math unpredictable