Definition
A SAFE is an investment contract that converts into equity at a future funding round, without setting a valuation or interest rate up front.

Why it matters

A SAFE lets a founder raise from a few angel investors in days or weeks, with a standard document and little legal cost. The cost is hidden. Each SAFE converts only when the priced round happens, and several of them converting together can dilute founders more than any single one suggested. It is easy to lose track of how much of the company has been promised.

How to apply it

  • Use the standard document without bespoke clauses, so every investor is on the same terms.
  • Keep one list of every SAFE: amount, cap, discount and date.
  • Before agreeing the next one, model the cap table as if all outstanding SAFEs converted at once.
  • Set the cap with the business's realistic trajectory in mind, not simply the first figure an investor proposes.
  • Explain to each investor how their SAFE will convert, so the priced round holds no surprises.

What it is

Pricing shares is hard when a company is brand new. A SAFE sidesteps the question. An investor hands over cash, and the contract promises shares when a later round sets a price. Y Combinator created the SAFE in 2013 as a faster alternative to convertible loans.

A SAFE is not debt. It carries no interest and no repayment date. Its terms usually include a valuation cap, which sets the highest price at which it converts, and sometimes a discount to the price new investors pay. If the next round values the company above the cap, the SAFE holder gets shares at the lower capped price, as a reward for investing early.

Common mistakes

  • Stacking SAFEs with different caps and losing sight of the total dilution.
  • Treating a SAFE as free money. It is a promise of equity.
  • Skipping legal advice because the document looks short. Local law and tax treatment still apply.
Worked example

Suppose a founder raises 300,000 euros from five angel investors through five SAFEs, each with a 5 million euro valuation cap. Each one is signed in DocuSign on the same standard terms, and the founder keeps one sheet listing the amount, cap and date for each. Before the seed round, the founder models the cap table as if all five converted at once. Together they would hold about 6 per cent of the company, more than the founder had assumed. The team agrees a higher cap for the next SAFE, reflecting traction since the first. When the seed round prices at 8 million euros, each SAFE converts at its own cap, so the founder can see the dilution before it arrives.

Tools in the example

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  1. Article

    Dilution

    The share of ownership that conversion removes from existing holders.

  2. Article

    Term sheet

    The document a priced round uses.

  3. Article

    Bridge round

    A small raise between larger rounds, often made with a SAFE.

  4. Article

    Cap table

    The record that shows who owns what.