What Is a Valuation Cap? Definition, How It Works and Examples

What is a valuation cap? It is the highest company value used to work out an early investor’s price per share. It appears in two kinds of early deals. A SAFE, or simple agreement for future equity, is a contract that turns into shares at the next priced round. Y Combinator, a startup accelerator, introduced it in late 2013 to replace convertible notes. A convertible note is a loan that turns into shares at the next round. It charges interest and has a maturity date, a deadline for repayment. A SAFE has neither.

When the company later sells preferred stock in a priced round, the SAFE or note converts. The cap stops a high round price from shrinking the early investor’s stake. Since 2018, the YC standard is the post-money SAFE. Its cap is the company’s value just after all the SAFE money comes in. So the stake is easy to read: the investment divided by the cap. $1 million on a $6.7 million cap is about 15% of the company before the next round.

The SAFE sets a price called the Safe Price. It equals the cap divided by the company’s shares, counted to include options, the option pool and all converting SAFEs and notes. When a priced round happens, the SAFE converts on its own, with no vote and no minimum size. The holder gets whichever price gives more shares: the Safe Price or the price new investors pay.

Some SAFEs and notes also carry a discount, a fixed cut to the new investors’ price. A 20% discount means the holder pays 80% of that price. In YC’s cap and discount version, the holder gets whichever of the two is better for them. Our guide to dilution shows how the converted shares change everyone else’s stake.

If the company is sold or lists before a priced round, the SAFE holder gets the greater of their money back or what their shares would be worth at the cap. If the company shuts down, the holder can get the money back, but only after creditors are paid. In both cases, the SAFE ranks like non-participating preferred stock. Our liquidation preference guide explains that order.

A valuation floor is the reverse of a cap. It sets the lowest company value used for conversion. If the next round is priced below the floor, the investor still converts at the floor price. The investor gets fewer shares, so founders and existing holders lose less of the company.

Floors are a negotiated term and appear in some convertible notes. YC’s standard SAFEs have no floor. If a round is priced below the cap, the SAFE simply converts at the round price, with no lower limit. A cap and floor together create a range, and the conversion price can move only inside it.

A company has 9,000,000 shares. An angel investor puts $1,000,000 into a post-money SAFE with a $10,000,000 cap. That buys 10% of the company, or 1,000,000 shares out of 10,000,000. The Safe Price is $10,000,000 ÷ 10,000,000 = $1.00. The table shows what happens at three Series A prices.

• High round, $3.00The cap does its job. The investor converts at $1.00 and holds shares worth $3.0M, three times the $1M paid. A discount alone would give $1.25M.
• Middle round, $1.20The cap still applies, but a 20% discount gives a lower price, $0.96. The cap and discount version picks the discount: 1,041,667 shares, 4% more.
• Low round, $0.80The round price is below the Safe Price, so the cap does nothing. The investor converts at $0.80. A $9M floor would hold the price at $0.90 and cut the shares by 11%.

For an investor, a cap is protection with limits. A SAFE pays no interest and has no repayment date. It may never convert if the company never raises a priced round. In a shutdown, it ranks behind creditors. A pro rata right, the right to invest more in later rounds, comes only with a side letter.

For founders and employees holding common stock, a low cap means giving away more of the company. Several SAFEs at different caps add up, and each one dilutes the founders. Every SAFE and note belongs on the cap table before it converts, so the dilution is visible early.

Common Mistakes

• Reading the cap as the company’s valueIt is a limit on the conversion price. The next round sets the real price.
• Mixing pre-money and post-money capsThe same number gives different stakes. On a post-money cap, the stake is the investment divided by the cap.
• Forgetting the discountIn a cap and discount SAFE, the discount can win when the round is priced near the cap.
• Assuming every SAFE has a floorYC’s standard forms have none. A floor exists only if the contract says so.
• Leaving SAFEs off the cap tableThey are not shares yet, but they will be. Count them to see real ownership.

Valuation cap

The highest company value used to set an early investor’s conversion price.

Valuation floor

The lowest company value used to set the conversion price. It limits dilution in a low round.

SAFE

A simple agreement for future equity. A contract that turns into shares at the next priced round.

Post-money SAFE

A SAFE whose cap is the company’s value after all SAFE money. YC’s standard since 2018.

Convertible note

A loan that turns into shares at the next round. It charges interest and has a maturity date.

Discount

A fixed cut to the new investors’ price that the early investor gets on conversion.

Safe Price

The cap divided by the company’s fully counted shares. The price used when the cap applies.

Preferred stock

The share class sold in a priced round, with rights common stock lacks.

Dilution

The drop in your ownership share when a company issues new shares.

Every fact was last checked on October 29, 2026, against Y Combinator’s published SAFE forms and user guide. The worked example is invented. For how early rounds fit together, see early-stage venture capital.