How Does a Post-Money SAFE Work? A Guide for Angel Investors

Published on
January 24, 2025
How Does a Post-Money SAFE Work? A Guide for Angel Investors
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Let’s face it: angel investing is complex especially when it comes to startups. Some of the familiar terms founders and investors throw around are ‘cap tables’ and ‘equity dilution’. Terminologies such as the “what is a post money SAFE?” may leave you with a number of questions to answer. If you are new to angel investing or just interested in learning more about startups funding, you don’t have to worry. 

This blog will break it down. By the end, you’ll get the answer to this question: how does a post-money SAFE work, why it matters, and how it can affect your investments. Plus, we’ll show you how to learn more through Angel School’s Venture Fundamentals course. Ready? Let’s get into the details. 

What Is a SAFE?

SAFE refers to “Simple Agreement for Future Equity.” It is kind of like a gentleman’s agreement – but with contracts. It’s a way for startups to get money today, in return for stock in the future. This happens when the startup raises another priced round or gets acquired.

Unlike traditional equity investments, you’re not buying shares outright. Instead, you’re securing the right to buy shares at a future date and price. It’s a popular tool in startup funding because it’s… well, simple. No lengthy negotiations. No immediate valuation related discussions. Just simple agreements or disagreements. 

But what is the idea of this “post money” part? Let’s tackle that next.

A SAFE is especially beloved by founders and investors because it is fast and easy compared to other methods of funding. To the founders, a SAFE implies that they are able to raise capital to fund their operations without necessarily having to go through the traditional lengthy and costly legal process of a priced round. From the investors’ perspective, SAFEs are relatively simplistic, faster means of investing in high growth startups while not necessarily going through the process of deep due diligence at the time of investment. This mutual benefit is why SAFEs have become so standard in early-stage investing; innovations can develop without extra constraints.

What Is a Post-Money SAFE?

A post-money SAFE means the valuation of the company – and your ownership stake – is calculated after your investment. It’s all about clarity. Unlike earlier versions (called pre-money SAFEs), the post-money SAFE makes it easier to know how much of the company you’ll own.

Here’s an example:

  • The startup you’re investing in has a post money valuation of $10 million.
  • You invest $100,000 using a post-money SAFE.
  • After your investment, you own 1% of the company ($100,000 / $10,000,000).

Simple, right? The key takeaway here is that the valuation includes your money. This makes it easier to calculate ownership percentages upfront.

Post-money SAFEs were introduced to address a major pain point for investors: The problem with pre-money SAFEs is that there is some question over ownership. With a pre-money SAFE, there was no clarity on how much of the company you actually owned until future rounds had been completed. The post money SAFE solves this issue by fixing the investor’s percentage stake right after a funding comes through. This clarity has resulted in founders favoring post-money SAFEs in the startup ecosystem by improving the relationship between founders and investors.

How Does a Post-Money SAFE Work in Practice?

In order to understand the answer to how does a post-money SAFE work, let’s break it down step by step:

  1. The Startup Sets a Valuation Cap: A valuation cap is the maximum value at which your money is converted into equity. Think of it as a ceiling. If the company’s future valuation exceeds the cap, you still get to convert your investment at the capped price. This protects you as an early investor.

  2. You Invest Money: You hand over your investment now in exchange for a post-money SAFE agreement. This document outlines the terms, including the valuation cap.

  3. Conversion Happens Later: When the startup raises a priced round or gets acquired, your SAFE converts into shares. The number of shares you get depends on the valuation cap and the size of your investment.

This structure is meant to be simple. It cuts down on negotiations and puts money into startups in a shorter time than traditional methods of venture capital. Investors gain the information of their ownership and entrepreneurs are happy because they can concentrate on building their companies.

In practical terms, a post-money SAFE can be understood as a tool that connects an investor’s funding with a given startup’s characteristics and further development. You could call it a simple guarantee that seeks to guarantee that those who invested early will get a piece of the action once the startup hits big. For instance, if the company manages to raise a Series A round at a much higher valuation, your SAFE makes sure that you get the reward for having faith in the start up at the right time. 

Why Post-Money SAFEs Matter

Post-money SAFEs are more transparent than their pre-money counterparts. They eliminate surprises when it comes to ownership percentages. For angel investors, this clarity is gold.

Here’s why:

  • You Know Your Stake: With a post-money SAFE, you can calculate your ownership upfront. No guesswork.
  • No Hidden Dilution: You can see how future funding rounds will look like and what changes they can bring to your stake.
  • Better Planning: It is easier to determine how much to invest once you are well informed on what the amount will get you.

For startups, it’s a win too. They will be more inclined to round off their funding in record time because investors are not left in the dark. 

Therefore, the significance of post-money SAFEs relies on the fact that it is possible to offer exact figures without detrimentally complicating the picture. It supplies a structure that shields investors while at the same time it does not overlay the legal formalities inaccessible for startups. This has made them common in startup funding where both parties can avoid the problem of dealing with massive paperwork that slows down their growth. And unsurprisingly, post-money SAFEs have now emerged as the go-to instrument in the venture capital industry.

What’s the Catch?

Like anything in investing, post-money SAFEs have pros and cons. Here are a few things to watch out for:

  1. Dilution Is Still Possible even with post-money SAFEs. There is full disclosure of ownership at the start; your percentage ownership will decrease if the company secures more funding later. This is perfectly fine but should be looked at nonetheless.

  1. No Voting Rights: A common thing about these instruments is that they don't provide you with voting rights or direct equity. This is actually staking a great deal on the future performance of the company in question.

  1. It’s Still a Risk, Startups are risky, and SAFEs are not investment guarantees. It is wise never to risk money you cannot afford to lose.

While post-money SAFEs offer transparency, they’re not without drawbacks. It’s crucial to understand that this instrument is designed for high-risk, high-reward scenarios. As an investor, you’re trading immediate control and certainty for the potential of exponential returns down the line. This trade-off is not for everyone, since it requires quite a lot of understanding when it comes to such post-money SAFE investment before making the next big move on it.

How Does This Fit Into Angel Investing?

Angel investing is all about getting in early. You spot startups with potential and invest before they hit the big leagues. SAFEs, especially post-money SAFEs, are a common tool in this space. They make early-stage investing more accessible and less complicated.

But investing in startups isn’t just about throwing money at an idea. It’s about understanding the mechanics, assessing risks, and knowing what terms like post-money valuation actually mean. That’s where education comes in.

Angel investing is as much about intuition as it is about knowledge. Spotting the next big thing requires a mix of research, experience, and a bit of gut feeling. However, intuition alone isn’t enough. By learning the ins and outs of tools like post-money SAFEs, you equip yourself to make smarter decisions. This blend of instinct and understanding is what separates successful angel investors from the rest.

Learn to Invest with Angel School

If all this talk about SAFEs, valuations, and equity has your head spinning, don’t worry. Angel School is here to help. Our Venture Fundamentals course is designed to teach you everything you need to know about angel investing.

You’ll learn:

  • How startup funding works.
  • What terms like post-money SAFE” and “valuation cap” mean.
  • How to spot promising startups.
  • Strategies to build a diverse portfolio.

Whether you’re a seasoned investor or just starting out, this course will give you the tools to invest with confidence.

Education is the cornerstone of successful investing. Without a clear understanding of the tools and terms, even the most promising opportunities can feel like a gamble. The Venture Fundamentals course from Angel School fills this gap by providing you with the necessary information to handle yourself in the startup world. With concepts such as post-money SAFEs, you can not only avoid typical pitfalls but can also increase your probability of investing in the next unicorn.

Final Thoughts

In general, a post-money SAFE is a useful instrument in investing in a startup. It is clear, accessible, and tailored to bring value to the investor as well as the founder. In fact, you are already ahead of the game if you know the answer to “how does a post-money SAFE work?”

Venture capital investing is generally a difficult prospect but mastering its methods means a great return on investment in startups. If you want to be more serious about it, you should try Angel School’s Venture Fundamentals. It’s your first step toward being an angel investment expert.

Welcome to the inaugural lesson and let’s get started on investing right away. Let’s make it happen.

About AngelSchool.vc

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Jed Ng
Author:
Jed Ng

“Jed is the Founder of AngelSchool.vc - a program dedicated to helping angels build their own syndicates.

He has a track record of exits and Unicorns, and is backed by 1400+ LPs.

He previously built and ran the world's largest API Marketplace in partnership with a16z-backed, RapidAPI".

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