SAFE vs Convertible Note: How Each Works and Which to Choose (US and India)

The SAFE vs convertible note question comes up in almost every early round. Both let you take investor money now and set the share price later, when a priced round arrives. They differ in one big way: a convertible note is debt, and a SAFE is not. This guide explains how each works, shows a simple example, lists the terms to negotiate and covers how Indian startups handle the same choice, where a US-style SAFE is not recognized.

What Each One Is

A convertible note is a loan that converts into shares at a later round, usually a priced seed round or Series A. It usually carries interest and a maturity date, which is the day the loan falls due if no round has happened.

A SAFE, short for simple agreement for future equity, is not debt. The investor gives you money and receives the right to shares at a future round. A SAFE has no interest and no maturity date, so nothing is owed if a round never comes. Y Combinator introduced the SAFE in 2013 to make early rounds faster and cheaper to close.

The Terms That Matter

Both instruments rely on the same two terms. A valuation cap sets the highest company value at which the investment converts, which protects the early investor if you raise at a much higher price. A discount rate gives the early investor a lower price than the new investors pay, commonly in the range of 10 to 25 percent.

SAFEs come in pre-money and post-money versions. The post-money SAFE, now the standard, states the investor's percentage of the company directly, which makes it easier to see your dilution. In a note, interest builds up over time and usually converts into extra shares, so the same cheque gets slightly more ownership the longer it waits.

A Simple Example

Suppose you raise $500,000 on a post-money SAFE with a $5 million cap. The investor owns 10 percent of the company before the next round, since $500,000 divided by $5 million is 10 percent. If you later raise a Series A, that 10 percent is diluted along with everyone else's.

Now suppose you raise $500,000 on a note at 6 percent simple interest with a $5 million cap and a 20 percent discount. After a year, $530,000 is owed, and that amount converts into shares at the better of the cap price or the discounted round price. The investor gets slightly more shares than on the SAFE because of the interest, and you also carry a maturity date. This is an illustration, not a recommendation.

SAFE vs Convertible Note at a Glance

Which to Choose

In the US, most early founders use a SAFE because it is faster, standard and carries no repayment risk. Choose a note when an investor requires it, when a bridge round needs debt terms, or when the lender wants interest. If a note's maturity date arrives before your round, investors can ask for repayment or an extension, so keep an eye on the date. Many founders use a note for a bridge loan style raise between rounds.

Before you sign, think about how several instruments with different caps stack up. Founders often sell several SAFEs at different caps and then find the combined dilution larger than expected. Model it in your cap table before the next round.

How This Works in India

A US-style SAFE has no standalone recognition under Indian law, and Indian legal commentary warns it could be treated as a deposit or an unapproved security. Indian startups usually take one of two routes. The first is the iSAFE, a form pioneered by 100X.VC in 2019, which is structured as compulsorily convertible preference shares, or CCPS. CCPS is a recognized instrument under the Companies Act, so it works legally. It must convert and cannot be redeemed, so there is no repayment risk, and it does not need a fixed valuation until the round.

The second is a convertible note, which is a statutory instrument open only to DPIIT-recognized startups. According to Indian legal commentary, the minimum is Rs 25 lakh per investor in a single tranche, and it must convert or be repaid within 10 years. Until conversion it sits as debt on the books. Foreign investors can use either route, but FEMA rules apply at issue, so take advice from a lawyer who has closed startup rounds in India before choosing a structure. This is general information, not legal advice.

Practical Steps

Decide first how much you need and what you will do with it. Pick one instrument and keep the terms consistent across investors, because mixing caps and discounts creates confusion. Write a one-page summary of the terms for every investor, and keep signed copies in your data room. Agree on what happens at a sale before a priced round, since SAFEs and notes handle that case differently.

Common Mistakes

The most common mistake is setting the cap too low, which gives away more of the company than intended. A second is raising on many SAFEs without tracking how they convert together. A third is ignoring a note's maturity date until it is close. A fourth, for Indian founders, is using a US form without checking that it works under local law.

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