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February 20, 2025 3 min read

SAFE vs. Convertible Notes: What Every Founder Needs to Know

SAFE vs. Convertible Notes

So, you’re raising funds for your startup, and investors are throwing around terms like SAFE notes and Convertible Notes, but what do they actually mean for you? More importantly, which one should you choose? Both options help you secure early-stage funding, but the fine print can make all the difference. Let’s break it down so you can make an informed decision.

What’s a SAFE Note?

Think of SAFE (Simple Agreement for Future Equity) notes as a handshake deal that lets investors buy into your company later when you raise a priced round. It’s fast, simple, and keeps things flexible.

Advantages of SAFE Notes for Early-Stage Founders

  1. Unlike Convertible Notes, SAFEs aren’t loans, meaning no interest, no repayment, and no ticking time bomb.
  2. They’re straightforward and don’t require lengthy legal negotiations.
  3. Investors get their shares when you raise a proper funding round, often at a discount or with a valuation cap.

Disadvantages and Risks of SAFE Notes

  • Since SAFEs don’t have a maturity date, some investors might worry they’ll never get their equity if you don’t raise a proper round.
  • If your valuation skyrockets, early SAFE investors might end up getting a steal, leaving you with more dilution than expected.
  • Unlike Convertible Notes, investors can’t demand their money back if things don’t go as planned. Great for you, but not always great for them.

What’s a Convertible Note?

Now, imagine Convertible Notes as a mix between a loan and an investment. Investors give you cash now, but instead of repaying them in cash, their loan converts into equity, usually at a discount, when you raise your next round.

Advantages of Convertible Notes for Founders and Investors

  1. These notes come with a maturity date, meaning they either convert into shares or you owe investors their money back (sometimes with interest).
  2. Since these are structured as debt, investors have more leverage if things go south.
  3. Some later-stage investors prefer Convertible Notes because they provide more structure and guarantees.

Disadvantages and Risks of Convertible Notes

  • Unlike SAFEs, Convertible Notes must be repaid if they don’t convert, which can be risky if things don’t go as planned.
  • Convertible Notes usually have a 5-8% interest rate, meaning the longer they remain unpaid, the more you’ll owe.
  • Negotiating maturity dates, interest rates, and repayment terms makes the process slower and more expensive than SAFEs.

SAFE Note vs Convertible Note: Which One Should You Choose?

Let’s make this simple:

  • Use a SAFE if … you want quick, easy fundraising with minimal risk and legal hassle.
  • Use a Convertible Note if … investors demand more security or you’re raising a larger round where debt terms make sense.

Still undecided? Here’s a side-by-side comparison:

SAFE Note vs Convertible Note

SAFE vs Convertible Note: Key Takeaways

If you’re an early-stage founder, SAFEs are often the best bet because they keep things simple. But if you’re working with more traditional investors or raising a significant amount, Convertible Notes might be the better play. Either way, make sure you understand what you’re signing before moving forward – corporate lawyers familiar with early-stage financing structures can review SAFE and Convertible Note terms before you commit, ensuring the valuation cap, discount rate, and conversion mechanics are correctly structured for your specific fundraising situation. Once your notes convert into equity, you will also need a solid framework governing the relationships between founders and new investors – covered in our guide on Shareholders’ Agreement.

Still unsure? Let’s chat. We’ve helped dozens of founders navigate these decisions, and we’re happy to guide you through the process.

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