---
title: "What Is Bridge Note?"
term: "Bridge Note"
description: "A bridge note is a convertible debt instrument — usually a promissory note — that gives a startup quick cash now and converts into equity when a qualifying financing round closes."
date: 2026-07-25T00:00:00.000Z
updated: 2026-07-25T00:00:00.000Z
topics: ["venture-capital"]
source: https://venturecapitaltracker.com/glossary/bridge-note
---

# What Is Bridge Note?

> A bridge note is a convertible debt instrument — usually a promissory note — that gives a startup quick cash now and converts into equity when a qualifying financing round closes.

**A bridge note** is convertible debt used to fund a startup until its next priced equity round.

### How it works

Instead of issuing new preferred stock immediately, the company sells a promissory note to one or more investors — often existing shareholders or the lead from the prior round. The note carries an interest rate, a maturity date, and conversion terms. When a qualifying financing closes (for example, a Series A above a minimum size), the note principal plus accrued interest converts into the same class of stock sold in that round.

Conversion economics usually include a **valuation cap** (maximum price per share for the note holder) and/or a **discount** (cheaper shares than new investors get). Some notes also have a **most-favored-nation (MFN)** clause that updates terms if the company sells a better note later. Maturity matters: if no round closes in time, the note may need to be repaid, renegotiated, or converted at unfavorable terms.

### Why it matters

- **Founders:** Bridge notes delay valuation negotiations and can close in days. The tradeoff is cap-table complexity — multiple notes with different caps can create a messy conversion waterfall at the next round.
- **Investors:** Notes reward early support with upside protection via caps and discounts. They also let insiders double down without forcing a formal down round.

### Common mistake

Stacking several bridge notes with overlapping caps and discounts, then being surprised when the Series A dilutes founders more than expected. Model the conversion before you sign the second note.

### Related ideas

See also [bridge loan](/glossary/bridge-loan), [bridge round](/glossary/bridge-round), SAFE, convertible note, and [cap table](/glossary/cap-table).

## FAQ

### What is bridge note in simple terms?

A bridge note is a loan that is designed to turn into stock later. Investors lend money today; when the company raises a priced round, the note converts into shares — often at a discount or with a valuation cap.

### Why does bridge note matter?

For founders, bridge notes can close fast without setting a formal valuation. For investors, they offer upside if the next round prices higher, but also stack alongside other notes and SAFEs in ways that surprise founders at conversion.


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Source: https://venturecapitaltracker.com/glossary/bridge-note