Venture Debt vs Equity Dilution Calculator
Venture debt extends runway with less dilution than a priced equity round — but at the cost of interest, fees, and warrant coverage. Calculate the true cost of $5M-$50M of venture debt vs an equivalent equity round.
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| Warrant Dilution (debt) | — |
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| Total Interest Paid | — |
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How Venture Debt Works
Venture debt is term debt extended to venture-backed startups, typically after a Series A. The lender (SVB, Western Alliance, Hercules, Trinity) underwrites based on the startup's last equity round, not on revenue or assets. Interest rates run 10-15%, terms 3-4 years, often amortizing after a 6-12 month interest-only period.
The lender also receives warrants — the right to buy company stock at the valuation of the last round — typically 1-2% of the debt amount. So a $10M debt facility at 1% warrant coverage gets 100K worth of warrants on 1% of company stock at the last round's price.
Dilution Math — The Real Comparison
A priced equity round dilutes founders and employees proportionally to the round size. Raising $10M at $100M pre-money means 9% dilution. Venture debt's warrant coverage at 1% typically creates only 1% dilution on the same $10M — roughly 9x less dilution.
But debt costs cash. On a $10M, 4-year, 12% facility, you pay ~$1.3M in interest. That's cash that doesn't go to growth. The comparison is: would I rather give up 9% equity, or give up 1% equity plus pay $1.3M cash? The answer depends on how productive that cash is.
When Venture Debt Makes Sense
Use venture debt when: (a) you have visible runway to the next round but want extra cushion, (b) you're profitable or near it and can service the payments from operating cash flow, (c) you raised a strong recent round and want to avoid the next dilution event, or (d) you're using the debt for specific milestones (acquisitions, hardware inventory) that will create equity value beyond the debt cost.
Don't use it when: you're cash burning toward zero with no clear path to profitability or next round. Debt obligations can force a fire-sale or down-round if you miss the runway target.
Covenants and Default Risk
Venture debt comes with covenants — minimum cash balance, MAC (material adverse change) clauses, sometimes minimum revenue or burn rate. Violate a covenant and the lender can call the loan or restrict your future actions. Read the covenants carefully before signing.
If you can't pay the debt, the lender has a senior lien on your assets and IP. In a bankruptcy, the venture debt lender gets paid first — even before Series A preferred shareholders. This is why dilution is lower (you're not giving up ownership) but the default risk is real.