The Founder's Guide to SAFE Notes and Convertible Instruments

The SAFE has become the default fundraising instrument for early-stage startups. But it's not always the right choice. You need to weigh the tradeoff.

SAFE basics

A SAFE is not debt. It's a promise of future equity. You take money now. The investor gets shares later when you raise a priced round. The key terms are the valuation cap, the discount rate (typically 10-20%), and the most favored nation clause.

SAFE vs convertible note

Convertible notes have interest rates and maturity dates. SAFEs don't. For most founders, SAFEs are simpler and faster. But if you want to delay valuation conversations, a note with a 24+ month maturity gives you more runway. The tradeoff is that notes accumulate interest, which increases dilution.

What most founders get wrong

Taking money from too many SAFE investors at different caps. When you raise a priced round, all those SAFEs convert at different valuations. Keep your SAFE stack clean: one cap, one set of terms. Practice your pitch before negotiating terms.