Fundraising
Convertible Note
Last updated
Quick Answer
A short-term debt instrument that converts into equity at a future financing round. An early-stage fundraising tool that carries an interest rate and maturity date, unlike a SAFE.
A convertible note is a form of short-term debt that converts into equity — typically preferred stock — at a future priced financing round. It functions as a loan with an interest rate (typically 4–8%) and a maturity date (typically 18–24 months). If the company raises a qualifying round before maturity, the note converts; if not, the note is technically due.
Like SAFEs, convertible notes typically include a valuation cap (protecting investors if the company's valuation rises sharply) and/or a discount rate (giving investors a lower effective price per share than new investors pay). The interest that accrues also converts to equity at the conversion event.
Convertible notes were the standard early-stage instrument before SAFEs emerged. They remain more common in certain sectors (biotech, hardware) and with investors who prefer the debt structure's legal protections.
In Practice
An angel invests $250K in a startup via a convertible note with a $5M valuation cap, 6% interest, and 20% discount, maturing in 24 months. Two years later, the company raises a Series A at a $10M pre-money valuation. The note converts at the lower of: $5M cap price or $10M × 80% (discount) = $8M effective price. The $5M cap wins — the investor converts at $5M valuation, plus 12% accrued interest ($30K) also converts to equity.
Why It Matters
Understanding the economics of convertible note conversion is essential for founders managing their cap table and investors modeling their returns. The interplay between cap, discount, and interest can make a significant difference in ownership at conversion — especially when multiple notes are outstanding at different terms.
VC Beast Take
Convertible notes predated SAFEs and still appear frequently in deals with sophisticated angels and institutional seed investors who want the legal structure of debt. The maturity date is both a discipline mechanism and a potential crisis point — if you haven't raised a priced round before the note matures, you technically owe the money back. Most reasonable investors will extend, but it's a conversation you don't want to have.
Related Concepts
Further Reading
SAFE vs Convertible Note: Which Should You Use in 2026?
A direct comparison of SAFEs and convertible notes for seed-stage fundraising. When to use each, key differences, and why most startups choose SAFEs.
LP Reporting Best Practices: Quarterly Reports That Build Trust
How to write LP quarterly reports that build trust and keep your investors informed. Templates, metrics to include, and the cadence top GPs follow.
What Happens When a Startup Runs Out of Money: Every Option Explained
Running out of money doesn't automatically mean the end. But it does mean a founder faces a set of difficult decisions under time pressure. Here's every option available and what each one actually involves.
How to Read Your Startup's Cap Table as an Employee
Your startup's cap table holds the answers to what your equity is really worth. Here's how to read it, understand your ownership percentage, and see where you stand in the stack.
SAFE vs Convertible Note: Which Should Founders Use?
SAFEs and convertible notes both delay valuation, but their mechanics differ in ways that matter. A clear breakdown of caps, discounts, MFN, pro-rata, and when each instrument makes sense.
Extension Rounds: When to Bridge and How to Structure
Extension rounds can save a startup or sink it. Learn when bridging makes strategic sense and how to structure convertible notes and SAFEs to protect your equity and cap table.
Related Guides
The Complete Guide to Startup Fundraising
A step-by-step guide to raising capital for your startup — from deciding when to raise, to closing your round and everything between. Written for founders, by people who've seen both sides.
Understanding Startup Equity and Dilution: A Complete Guide
How equity actually works, what dilution really means, and what founders take home in different exit scenarios. Real math, worked examples, no hand-waving.
How Venture Capital Works: The Complete Guide
Everything you need to understand about venture capital — how funds raise money, how deals get done, and how returns flow back to investors. The definitive primer.
Comparisons
Careers That Use This Term
This concept is especially relevant for these venture capital roles:
Frequently Asked Questions
What is Convertible Note in venture capital?
A convertible note is a form of short-term debt that converts into equity — typically preferred stock — at a future priced financing round. It functions as a loan with an interest rate (typically 4–8%) and a maturity date (typically 18–24 months).
Why is Convertible Note important for startups?
Understanding Convertible Note is critical for founders navigating the fundraising process. It directly impacts deal terms, valuation, and the relationship between founders and investors.
What category does Convertible Note fall under in VC?
Convertible Note falls under the fundraising category in venture capital. This area covers concepts related to how startups and funds raise capital from investors.
Newsletter
The VC Beast Brief
Join thousands of founders and investors. Every Tuesday.
The VC Beast Brief
Master VC terminology
Get smarter about venture capital every week. Our newsletter breaks down the terms, concepts, and strategies that matter.
VentureKit
Ready to launch your fund?