What Is a SAFE?
A SAFE -- Simple Agreement for Future Equity -- is an investment instrument created by Y Combinator in 2013 to simplify early-stage fundraising. Instead of negotiating a full priced equity round (which requires a valuation, legal fees of $10K-$50K, and weeks of negotiation), a SAFE lets an investor give you money today in exchange for the right to receive equity later, when you raise a priced round.
Think of it this way: the investor is saying, "I believe in you enough to invest now, and I'll take my equity when you're further along and can properly price the company." It's a handshake with legal teeth.
SAFEs have become the default instrument for pre-seed and seed fundraising. If you're raising your first round in Miami, San Francisco, or anywhere in between, your investors will likely expect a SAFE. Understanding how they work isn't optional -- it's foundational.
SAFE vs Convertible Note: Key Differences
Before SAFEs existed, startups used convertible notes for early-stage fundraising. Some still do. Here's why SAFEs are generally better for founders:
The 4 Types of SAFE
Y Combinator offers four variations of the post-money SAFE. Each serves a different negotiating position:
1. Valuation Cap, No Discount
The most common type. The investor gets equity at the lower of the cap or the priced round valuation. If your cap is $8M and you raise your Series A at $20M, the SAFE investor converts at $8M -- getting 2.5x more shares per dollar than Series A investors. If you raise at $6M, they convert at $6M (no worse than new investors). This is the default for most pre-seed and seed rounds we see from founders in our Miami venture studio.
2. Discount, No Cap
The investor gets a percentage discount on the priced round price. A 20% discount means if Series A shares cost $1.00 each, the SAFE investor pays $0.80 per share. This type has no ceiling -- if the valuation skyrockets, the discount becomes less meaningful in absolute terms. Less common than cap-based SAFEs.
3. Valuation Cap AND Discount
The investor gets the better deal of either the cap or the discount, whichever results in a lower price per share. This is the most investor-friendly SAFE. Example: $8M cap and 20% discount. If the Series A is at $20M, the cap gives a better price ($8M valuation). If the Series A is at $9M, the 20% discount gives a better price ($7.2M effective valuation).
4. MFN (Most Favored Nation), No Cap, No Discount
The simplest SAFE. No cap, no discount -- the investor converts at whatever the priced round price is. But the MFN clause says: if you issue any future SAFE with better terms (cap, discount, or both), this SAFE automatically gets those same terms. Used when a founder has strong leverage and the investor wants in early without negotiating terms.
Key Terms Explained
Valuation Cap
The maximum valuation at which the SAFE converts to equity. It rewards early investors for taking more risk. If you set a $5M cap and your company is worth $25M at Series A, your SAFE investor gets shares at the $5M price -- a 5x better deal than new investors. Typical pre-seed caps in 2026 range from $3M-$15M depending on traction, market, and team. Miami-based startups typically see caps in the $4M-$10M range for pre-seed.
Discount Rate
The percentage discount the SAFE investor gets on the Series A share price. Common discounts range from 10% to 25%, with 20% being the most standard. A 20% discount on a $1.00/share Series A means the SAFE investor pays $0.80/share.
Post-Money vs Pre-Money SAFE
This is critical and often misunderstood. In a post-money SAFE (the current YC standard), the valuation cap includes the SAFE investment itself. So a $10M post-money cap with a $1M SAFE means the investor owns exactly 10% ($1M / $10M). The math is clean and predictable.
In the older pre-money SAFE, the cap excluded the SAFE money. A $10M pre-money cap with a $1M SAFE meant the investor converted at an $11M post-money valuation, owning about 9.1%. When multiple SAFEs were issued, the dilution math became unclear. The post-money SAFE fixed this problem.
Pro-Rata Rights
The right (but not obligation) for the SAFE investor to invest additional money in future rounds to maintain their ownership percentage. This is a standard side letter that investors often request alongside the SAFE. It's generally reasonable to grant pro-rata rights to investors who are writing meaningful checks.
Simplified SAFE Template
Below is a simplified SAFE template (Valuation Cap, No Discount) to illustrate the structure. For actual fundraising, use the official YC SAFE documents which are more comprehensive and legally vetted.
THIS CERTIFIES THAT in exchange for the payment by [Investor Name] (the "Investor") of $[Investment Amount] (the "Purchase Amount") on or about [Date], [Company Name], a [State] [corporation] (the "Company"), hereby issues to the Investor the right to certain shares of the Company's capital stock, subject to the terms set forth below.
(a) Equity Financing. If there is an Equity Financing before the termination of this SAFE, on the initial closing of such Equity Financing, this SAFE will automatically convert into the number of shares of SAFE Preferred Stock equal to the Purchase Amount divided by the Conversion Price.
(b) Liquidity Event. If there is a Liquidity Event before the termination of this SAFE, the Investor will, at its option, either (i) receive a cash payment equal to the Purchase Amount or (ii) receive a number of shares of Common Stock equal to the Purchase Amount divided by the Liquidity Price.
(c) Dissolution Event. If there is a Dissolution Event before the termination of this SAFE, the Investor will receive a cash payment equal to the Purchase Amount, prior to any distribution to holders of Common Stock.
"Conversion Price" means the price per share equal to the Post-Money Valuation Cap divided by the Company Capitalization.
"Post-Money Valuation Cap" means $[Valuation Cap Amount].
"Company Capitalization" means the sum of: (a) all shares of capital stock issued and outstanding; (b) all outstanding stock options; (c) all shares of unissued stock reserved for future issuance under the equity incentive plan; and (d) all shares of capital stock issuable upon conversion of all outstanding SAFEs.
"Liquidity Price" means the price per share equal to the Post-Money Valuation Cap divided by the Liquidity Capitalization.
The Company is duly organized, validly existing, and in good standing under the laws of its state of incorporation. The execution and delivery of this SAFE is within the Company's powers and has been duly authorized. This SAFE constitutes a valid obligation of the Company.
The Investor is an accredited investor as defined in Rule 501(a) of Regulation D under the Securities Act. The Investor has been advised that this SAFE and the underlying securities have not been registered under the Securities Act, and are acquired for investment purposes only and not with a view to distribution.
This SAFE may not be assigned without the Company's prior written consent. This SAFE is governed by the laws of the State of [State, e.g., Delaware]. This SAFE expires and is of no further force or effect upon the earlier of (a) the issuance of shares to the Investor pursuant to Section 1; or (b) the payment of amounts due to the Investor pursuant to Section 1.
COMPANY:
By: ___________________________
Name: [Name]
Title: [CEO / Authorized Signatory]
Date: ___________________________
INVESTOR:
By: ___________________________
Name: [Investor Name]
Date: ___________________________
Address: [Address]
Email: [Email]
When to Use a SAFE vs a Priced Round
Use a SAFE when: You're pre-revenue or early-revenue. You don't have enough traction to justify a specific valuation. You want to raise quickly ($50K-$2M) without spending $15K+ on legal fees. You're raising from angels, friends and family, or small funds. This covers most pre-seed and seed fundraising scenarios.
Use a priced round when: You have significant traction (revenue, users, partnerships). You're raising $2M+. Institutional VCs are leading. You can negotiate a fair valuation backed by data. You want clean governance from the start (board seats, information rights, etc.).
The transition point is usually Series A. By then, you should have enough traction to price the company properly and enough investor interest to justify the legal costs of a full equity round. If you're exploring term sheet terms for that stage, check our guide on understanding term sheets.
Common Negotiation Points
The cap is too high / too low. Founders want high caps (less dilution). Investors want low caps (more equity). Research comparable deals in your market and stage. A pre-seed AI startup in Miami might see caps from $4M-$12M depending on team, traction, and market size.
Pro-rata rights. Investors will ask for the right to invest in future rounds to maintain their percentage. This is reasonable for lead investors writing $50K+. For smaller checks, you can push back.
Information rights. Some investors want quarterly financial updates. This is reasonable and good practice -- investors who are informed are more helpful. Just don't promise board seats at the SAFE stage.
MFN provisions. If you're issuing multiple SAFEs, later investors may want an MFN clause guaranteeing they get the best terms you've offered anyone. This is fair if all the SAFEs are roughly the same check size.
Consider whether traditional fundraising is even the right path. For many founders, a venture studio partnership can provide the technical team and capital needed without giving up the equity a traditional round requires. We work with founders in Miami and across Latin America who choose equity partnerships over dilutive fundraising.