What are uncapped notes?
Uncapped notes are convertible notes (or SAFEs) issued without a valuation cap — meaning the investor will convert at the next priced round’s valuation, with only a discount (if any) to that price. The absence of a cap is unusual in venture financing and is essentially a transfer of optionality from investor to founder.
How conversion math differs
For a capped note: Conversion Price = min(Cap / Fully-Diluted Shares, (1 − Discount) × Round Price)
For an uncapped note: Conversion Price = (1 − Discount) × Round Price
The uncapped investor never benefits from upside between note investment and the next round. If the company raises a Series A at $50M pre-money having sold uncapped notes 18 months earlier, the early investor converts at $50M (less discount) — they paid for early risk and got priced-round economics.
When uncapped notes appear
- Strategic investors: corporates investing for partnership rather than financial return sometimes accept uncapped terms.
- Friends and family: informal early supporters who prioritise founder relationship over deal economics.
- Bridge financing: existing investors providing short-term financing to bridge to a near-term priced round.
- Hot founders: repeat founders or high-demand teams who can negotiate away the cap.
Why investors usually demand a cap
The cap protects the investor’s early-risk economics. Without a cap, a successful company simply prices its next round at a high valuation and the early investor — who carried risk when nothing was proven — receives no compensation for that risk above the discount. Most sophisticated investors will not invest uncapped.
Pitfalls for founders
- Conversion economics mis-modelled: founders sometimes assume uncapped is “founder friendly” without modelling the broader cap-table impact.
- Investor selection drift: only less sophisticated investors accept uncapped, which can mean weaker board contribution and follow-on capacity.
- Signal risk: uncapped financing in a competitive market signals difficulty raising — sophisticated leads may walk.
Do: use uncapped notes only with strategic or friends-and-family investors where the relationship is the primary value; document the discount and conversion mechanics clearly.
Don’t: issue uncapped notes broadly to early-stage VC investors — they will refuse or it signals weakness; capped SAFEs are market standard.