Discount
A percentage off the next round's share price granted to convertible holders, rewarding risk taken before the round existed.
The discount is the simpler of the two conversion mechanics on SAFEs and convertible notes. At the next priced round, the holder converts at the round price reduced by the discount rate, typically 10 to 25%, with 20% the most common single number. When the instrument also carries a valuation cap, the investor converts at whichever price is lower: the discounted round price or the cap-implied price. The two terms are a floor and a ceiling on the same risk premium, and they never combine (no discount on top of the cap price).
The economic logic is compensation for early risk: the discount hands the early investor a better price than the round investors who waited for more evidence. Its weakness is symmetry. A 20% discount pays the same whether the priced round closes in eight months or in three years, and whether the company’s value multiplied or merely survived. The cap exists precisely to repair that: it converts patience into ownership when the company outperforms.
In a term sheet negotiation the discount is rarely the battleground; caps carry the real economics. The founder’s discipline is simply to model both paths at signature: at what round price does the discount bind rather than the cap, and what does each scenario cost in fully diluted ownership.
A discount prices one thing: a percentage off a future round, whenever it comes. It does not price time, and time is exactly what a quantum investor underwrites; the gap between a first cheque and a priced round can be two or three years of technical milestones. That is why a discount-only, capless instrument is rare in quantum outside of competitive rounds: the early believer who took milestone risk ends up paying nearly the same price as the Series A investor who took none.
A SAFE carries a 20% discount and an $8,000,000 post-money cap. The Series A prices shares at $10.00. Discounted price: 10.00 × (1 − 0.20) = $8.00. If the cap implies a price of $6.40, the investor converts at $6.40, the lower of the two. With no cap, the conversion would happen at $8.00 regardless of how high the round priced, which is the scenario a long wait does not reward.
From definition to decision
Model this in your own round, scenarios, dilution and runway, in the founder workspace.