What is the difference between a SAFE and a convertible note?

A SAFE is an equity contract with no maturity date, no interest rate, and no balance sheet liability. A convertible note is a debt instrument with a maturity date (typically 18–24 months), an interest rate (typically 5–8%), and a balance sheet liability. Both convert into preferred equity at the qualifying financing at terms set by the valuation cap and discount rate. The SAFE is simpler and preferred for most US pre-seed rounds. The convertible note is preferred when investors want debt structure or are outside the US startup ecosystem.

Which is better for a startup: a SAFE or a convertible note?

It depends on five factors: investor familiarity and preference, timeline to next priced round, need for debt structure, balance sheet and tax considerations, and the founding team’s experience managing debt instruments. For most US pre-seed rounds with investors familiar with the YC ecosystem, the SAFE is the right choice. The convertible note is right when the investor prefers debt, when you are bridging to a specific imminent financing, or when non-US investors are involved. The decision is almost always investor-driven.

Is a SAFE safer than a convertible note for a founder?

In one way yes: no maturity date means no repayment risk. A maturing note without a qualifying financing creates real pressure. However, the SAFE’s post-money cap commits dilution immediately at closing — founders who do not calculate this before signing face a different kind of risk. Both instruments require the founder to understand their economics fully before issuing. Legal Chain calculates both before generating the document.

Can a startup use both SAFEs and convertible notes?

Yes. Many startups issue SAFEs to US-based angels while issuing convertible notes to family offices or international investors who prefer debt. Both coexist on the same cap table and both convert at the qualifying financing. The MFN provision in either instrument — giving the holder the right to adopt any later instrument’s better terms — creates a connection between them founders should understand before mixing. Legal Chain generates both and can be used to manage a mixed round. Try it at legalcha.in/beta.