Debt and equity are not interchangeable, and treating them as two ways to raise the same money is how founders end up over-diluted or over-leveraged. The right question isn’t which is cheaper — it’s which risk you can carry.
The real cost of each
Equity costs ownership and control, permanently. Debt costs interest and covenants, temporarily — but it must be serviced on schedule regardless of how the month went. Equity is patient and forgiving; debt is cheap but unforgiving.
When venture debt makes sense
- You have revenue, or a clear funded path to it, to service the debt from.
- You want to extend runway between rounds without resetting your valuation.
- You’re funding a specific, return-generating use: inventory, a contract, a growth push.
- You’ve just raised equity — lenders price venture debt best right after a round.
When equity is the right call
Pre-revenue, deeply uncertain, or funding long R&D with no near-term cash flows — debt you can’t service is a trap. Equity is also right when you need the network, credibility and governance a good investor brings.
In practice the sharp answer is often “both, sequenced” — equity for the risky build, venture debt layered on to extend runway once there’s something to lend against. Getting the mix and the covenants right is exactly where a finance partner earns their place.