- Understanding the SAFE (Simple Agreement for Future Equity)
- What is a SAFE agreement?
- How does a SAFE agreement work?
- Understanding the key terms in a SAFE agreement
- The three standard SAFE templates
- How do SAFEs compare to convertible notes and priced rounds?
- SAFEs vs. priced rounds
- SAFEs vs. convertible notes
- Why do founders use SAFEs for early-stage fundraising?
- What type of company can issue a SAFE?
- Are SAFEs regulated as securities?
- Tax implications of SAFEs
- How to manage your SAFE fundraising round
- Modeling your SAFE conversion and dilution
- Issuing and tracking your SAFEs
- Four factors to consider before you raise a SAFE
- 1. How much of your company's equity do you plan to give up?
- 2. How much money do you want to raise in your next priced round?
- 3. What milestones will you use the money to reach?
- 4. How will you track your SAFE investments?
- Advantages and disadvantages of fundraising with SAFEs
- From SAFEs to scale: Your partner in growth
- Frequently asked questions about SAFE agreements
- Download the SAFE Fundraising 101 ebook
What is a SAFE agreement?
A SAFE (Simple Agreement for Future Equity) is a legal contract between a startup company and an investor where the investor provides funding now in exchange for the right to receive equity at a future date, typically during your company's next priced round or a liquidity event. It defers company valuation, carries no debt, and does not accrue interest.
Y Combinator introduced SAFEs in 2013 as an alternative to convertible notes. A SAFE is a type of convertible security, but unlike debt instruments, SAFEs have no interest and no maturity date. That combination makes them one of the most attractive fundraising options for early-stage startups.
The numbers bear this out. At the pre-seed stage, SAFEs comprised a record high of 93% of all deals on Carta in Q1 2026. Meanwhile, convertible notes fell to a record low of just 7% of pre-seed rounds in Q1 2026. And even at the seed stage, where priced rounds are common, SAFEs dominate. The trend is accelerating: A majority of early-stage rounds under $4 million in H1 2025 were SAFEs or convertible notes.
The core purpose of a SAFE is to let you raise capital without setting a specific valuation for your startup. That is a real advantage for new companies that have not yet established a track record or generated revenue. By removing the valuation question from the table, SAFEs simplify the fundraising process and let you secure funding quickly so you can focus on building your business.
How does a SAFE agreement work?
The basic mechanic is straightforward. An investor gives you capital, and the SAFE contract promises them stock when a specific conversion event occurs. This process, known as conversion, turns the investor's initial investment into company shares. The Securities and Exchange Commission (SEC) notes that SAFEs are designed to automatically convert into equity upon a defined triggering event, such as a priced financing round.
For most startups, the triggering event is the company's first priced round of equity financing. A priced round is when you sell shares to new investors at a set price-per-share, which establishes a formal valuation for your company. At that point, the investor's SAFE converts into shares, making them a part-owner of your company.
A SAFE operates like any other type of legal contract. Key terms like a valuation cap or discount rate incentivize investors with the opportunity to receive shares at a favorable price when the SAFE converts.
However, until conversion, SAFE holders have no voting rights or ownership in the company because they are not yet shareholders. Once a triggering event occurs, the SAFE converts to equity based on the agreed terms, and investors receive shares at a lower cost than future investors.
Understanding the key terms in a SAFE agreement
The SAFE agreement is short, but a few key terms drive most of the negotiation.
Valuation cap: The maximum company valuation at which an investor's money converts into equity. Think of it as a ceiling on the price the SAFE investor will pay for shares, regardless of how high the company's valuation reaches in the priced round. If the valuation exceeds the cap, the SAFE converts at a lower price-per-share than new investors pay. This rewards your earliest investors for taking a risk before the company’s value was proven.
Discount price (conversion discount): A percentage off the share price that the SAFE holder receives compared to new investors in the priced round. A SAFE can have a valuation cap, a discount, or both. Recent data shows that nearly a third of SAFEs offer both a cap and a discount, giving your earliest backers multiple ways to benefit from their early commitment. The investor typically receives whichever term gives them a better price on their shares.
Pre-money vs. post-money SAFEs: The distinction between pre-money SAFEs vs. post-money SAFEs determines when the valuation cap is applied during a priced round. A pre-money SAFE calculates ownership based on the valuation before the new funding is added; a post-money SAFE calculates it after. Post-money SAFEs give founders a clearer view of ownership dilution upfront, which helps you plan and communicate with your team. However, post-money SAFEs tend to dilute the founders' ownership more in future rounds.
Most Favored Nation (MFN) clause: A clause that protects early investors. If you later issue another SAFE on better terms, such as a lower valuation cap or a higher discount, the MFN clause automatically gives the original investor those same improved terms. This protects your first supporters from being disadvantaged by later deals. Once an investor's SAFE converts into stock, the MFN clause no longer applies.
The three standard SAFE templates
Y Combinator publishes three standard SAFE templates, and in most cases, founders choose one of these when raising on a SAFE:
Valuation cap, no discount: The SAFE converts at the lower of the cap or the priced-round price. This is the most common structure.
Discount, no valuation cap: The SAFE converts at a fixed percentage discount to the priced-round price. No cap is set.
Uncapped MFN (no valuation cap, no discount): The investor receives the right to adopt the terms of any future SAFE issued on better terms. This is sometimes used with the earliest, smallest checks.
You can find these SAFE templates on Y Combinator's website. Many founders use these templates directly, or work with legal counsel to customize them for their specific situation.
Note: SAFEs with both a valuation cap and a discount exist and are used in practice; they simply aren't a standard YC template. If an investor requests both, consult your lawyer.
How do SAFEs compare to convertible notes and priced rounds?
Feature | SAFE | Convertible note | Priced round |
Is it debt? | No | Yes | No |
Maturity date? | No | Yes | No |
Accrues interest? | No | Yes | No |
Complexity and cost | Low | Medium | High |
The key takeaway: a SAFE is not a loan, so it doesn't add debt to your company's balance sheet. There's no maturity date, and no repayment deadline bearing down on your runway.
SAFEs vs. priced rounds
A company's valuation and the type of equity exchanged set SAFEs apart from priced equity rounds.
Company valuations: During a priced round, such as a Series A, an investor provides funds based on a negotiated valuation. A SAFE does not require a valuation. This benefits very early-stage companies that often have no formal value for their company yet. Priced rounds are more structured; SAFEs are more flexible and less formal to close.
Equity type: In a priced round, you give investors shares of equity immediately. With SAFEs, you give investors nothing right away; instead, you promise them future shares in exchange for their investment today.
SAFEs vs. convertible notes
wo key differences separate SAFEs from convertible notes: debt and conversion timing.
Debt: A convertible note is a convertible instrument (like a SAFE), meaning it converts into equity at a particular time. Unlike a SAFE, a note is considered convertible debt. It comes with an interest rate and maturity date. A SAFE has neither, but it typically includes a valuation cap, a conversion discount, or both.
Conversion: SAFEs convert into equity during the next priced round, regardless of how much your company raises. Convertible notes typically convert only when you raise a certain amount of capital in a priced round (for example, $1 million).
Why do founders use SAFEs for early-stage fundraising?
SAFEs have become the default investment vehicle for seed rounds because they are built for speed and simplicity. SAFEs are designed from the founder's perspective, directly addressing the needs of a company just getting started. As Julia Gudish Krieger, managing partner at Pari Passu Ventures, observes: "SAFEs are so much more common than they were 10 years ago. I think it's become the standard for pre-seed and seed in many ways, unless you're doing a really sizable seed."
Founders appreciate SAFEs for several reasons:
They are faster to execute than a priced round, which involves more negotiation and legal paperwork.
They typically involve lower legal fees, saving your company cash that can go toward product development and hiring.
They let you close with investors one at a time on a rolling basis, rather than needing everyone to commit at once.
If your company is not ready to negotiate a formal valuation, or if you want more flexibility in your early fundraising, a SAFE is often the better fit.
What type of company can issue a SAFE?
If you're considering fundraising with SAFEs, your company generally needs to be a C corporation (C corp). There are cases where LLCs may be able to raise SAFEs, but the process is more complicated. Investors generally view LLCs as riskier, so fundraising is typically easier as a C-corp.
Are SAFEs regulated as securities?
Yes. SAFEs are legally classified as securities under U.S. federal and state law. That means issuing a SAFE comes with regulatory requirements, even though the process is simpler than a priced round.
Most startups issue SAFEs under an exemption from SEC registration, typically Regulation D. Under this exemption, you will need to file a Form D with the SEC, usually within 15 days of the first sale. You may also need to file notice filings with the states where your investors reside, depending on state-level "blue sky" laws.
Failing to file properly can create compliance problems down the road, especially when you raise a priced round and prospective investors conduct due diligence. Consult your lawyer before issuing your first SAFE to make sure you meet all applicable federal and state requirements.
Tax implications of SAFEs
Tax treatment is one of the most common questions founders have about SAFEs. Generally, there is no immediate tax event when you issue one. The IRS does not treat the signing of a SAFE as a taxable transaction for either the company or the investor.
The more important question is what happens at conversion. When your SAFE converts into equity during a priced round, the holding period for those shares begins at conversion, not at the date you originally signed the SAFE. This distinction matters for tax purposes, especially if your investors are planning to claim benefits under the qualified small business stock (QSBS) exclusion. The five-year holding period required for QSBS starts when the shares are actually issued, not when the SAFE was signed.
Depending on your situation, this timing difference can significantly affect your investors' tax outcomes. You can learn more about QSBS eligibility and how it applies to your cap table with Carta's QSBS attestation tools.
As with any tax question, consult a qualified tax advisor for guidance specific to your company and your investors.
How to manage your SAFE fundraising round
While SAFEs simplify startup financing, managing them takes organization. SAFEs are easier to execute, but tracking dozens of individual agreements in a spreadsheet can quickly become messy and lead to costly errors during conversion. A disorganized process can create confusion and undermine investor confidence, which can cause problems in future financing rounds.
An organized SAFE round builds investor trust and positions your backers to take advantage of QSBS tax benefits at conversion.
Modeling your SAFE conversion and dilution
Instead of manually calculating how multiple SAFEs will convert and affect ownership, use a SAFE and convertible note calculator to model different scenarios. The math compounds quickly, and small errors create real disagreements about ownership at exactly the wrong moment.
Issuing and tracking your SAFEs
The old way of managing SAFEs involved emailing PDF documents and chasing signatures. This process is inefficient and leaves room for important details to get lost, creating a messy paper trail that can be difficult to audit later.
With Carta's SAFE Financing platform, you can use standard Y Combinator SAFE templates, Carta versions of the SAFEs, or your own custom agreements. You create agreements, collect signatures, and receive funding all through one connected platform.As Amber Allen, founder of Double A Labs, notes, "Raising capital with SAFEs on Carta was a breeze."
Four factors to consider before you raise a SAFE
Before you begin fundraising with SAFEs, take some time to think through your company's goals and equity distribution plan. The following questions will help you decide whether SAFEs are the right fundraising solution for your company.
1. How much of your company's equity do you plan to give up?
The more investors you bring in and the more money you raise via SAFEs, the more your shares will be diluted. It can be hard to estimate how much equity you're losing when you issue a SAFE, since you're not actually giving away a specific number of shares upfront.
However, you should at least estimate how much your shares will be diluted once the SAFE converts. The Carta team has created a free SAFE conversion calculator to help you with these estimates.
2. How much money do you want to raise in your next priced round?
You may not be able to predict exactly how much money you'll raise during a future financing round, but you should have a clear idea of your fundraising goals.
If you raise too much via SAFEs, you could over-dilute your Series A investors when those SAFEs convert. Leaving room on your cap table for Series A investors is part of what makes a future round attractive.
3. What milestones will you use the money to reach?
During your seed round, you want to raise enough money to hit the specific milestones that will increase your company valuation and position you well for a Series A. Milestones could include achieving an internal growth goal, launching a product within a certain timeframe, hitting a specific fundraising target, or attracting a particular investor.
Defining your milestones helps you set more realistic fundraising goals, so you raise enough to grow while avoiding excessive dilution.
4. How will you track your SAFE investments?
A common mistake many early-stage entrepreneurs make is neglecting to properly record their outstanding SAFEs. Each SAFE you issue might have a different valuation cap or conversion discount, and if you don't keep track of these details, you can end up diluting your ownership more than you intended.
Staying on top of your SAFE investments doesn't have to be complicated. Carta’s cap table management software can help you track everything.
Advantages and disadvantages of fundraising with SAFEs
As with any fundraising method, there are both benefits and drawbacks to raising money via SAFEs.
Advantages | Disadvantages |
SAFEs are typically faster and more affordable than a priced round. Fewer terms to negotiate means quicker contracts and lower legal fees. | They can lead to excessive dilution. If you set your valuation cap too low, you could over-dilute your own shares or the shares reserved for Series A investors. |
They're appealing to investors. Early investors may be more willing to take a risk because they're protected by the valuation cap or conversion discount. | You may have a harder time finding investors. Without an obvious lead investor to generate interest in your company (as in a priced round), you may need to work harder to find early backers. |
They give you time to reach milestones. If you need quick funds but are not ready for a formal company valuation, SAFEs offer more flexibility. | For investors, SAFEs generally do not grant the terms available with preferred stock, which can mean reduced ability to maintain ownership and limited protection in liquidation events. |
They carry no interest rates. As a founder, you don't have to worry about paying down debt with a SAFE. | The holding period for QSBS tax benefits does not start until the SAFE converts into equity, potentially delaying or limiting eligibility for favorable tax treatment. |
From SAFEs to scale: Your partner in growth
A SAFE is usually your company's first fundraising instrument — but it won't be your last. As you hire employees and grant them equity, raise more capital, and grow, the real work is maintaining a perfect, up-to-date record of ownership and adhering to accounting standards like ASC 718. This record, known as a cap table, is the single source of truth for your company's equity.
Carta's cap table management software is your company's official ownership record. When you issue a SAFE on the platform, your cap table updates automatically. No manual data entry, no version confusion, and you stay ready for your next VC round.
Whether you're preparing for a priced round with Deal Closings or getting your first 409A valuation, the platform provides the tools you need. From your first SAFE to a future exit, Carta helps you manage your equity with professionalism and confidence. Request a demo to see how.
Frequently asked questions about SAFE agreements
Is a SAFE agreement considered debt or equity?
A SAFE is neither. It is a contract that gives an investor the right to receive equity in the future, but it doesn't represent current ownership or a loan that needs to be repaid.
What happens if a SAFE never converts?
If the company is acquired before a priced round occurs (an event that would trigger the liquidation preferences of other shareholders), the SAFE holder typically has the option to get their investment back or convert into equity at the valuation cap. The specific terms are outlined in the SAFE agreement itself.
Do investors have any rights with a SAFE?
SAFE holders do not have voting rights. However, the SAFE agreement gives them the contractual right to receive stock upon a triggering event, which protects their investment.
What are the differences between equity and SAFE deals in accelerators?
In startup accelerators, equity deals give the accelerator immediate ownership and rights in your startup. SAFE deals provide funding now but delay ownership, dilution, and shareholder rights until a future funding round when the SAFE converts to equity.
What legal documents are required for a SAFE?
You mainly need the SAFE agreement, with board consent and updated cap table. Unlike equity rounds, no complex legal documents are required.
How do you handle SAFEs on your cap table when fundraising?
SAFEs are recorded on your cap table as separate, non-equity line items until they convert. Each entry shows the investor, their investment amount, and the terms (like valuation cap or discount, or both). They do not count as outstanding shares until conversion.
What are the typical triggers for converting a SAFE into equity?
A SAFE converts into equity during a priced equity financing round. SAFEs also specify payouts to SAFE investors in the event of a company acquisition (liquidity event) or company shutdown (dissolution event).
Download the SAFE Fundraising 101 ebook
Learn everything you need to know about fundraising with SAFEs.
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