Glossary — funding
Convertible note
A convertible note is short-term debt that converts into equity when the company raises a future priced round.
How it works
Convertible notes were the dominant pre-seed instrument before SAFEs (~2013). Unlike a SAFE, a convertible note is technically debt — it accrues interest and has a maturity date, after which the company owes the principal back. Most notes include a valuation cap and a discount, and convert automatically at the next priced round. They've fallen out of favour for founders because the debt nature creates legal complexity if the conversion event doesn't happen on time.