Fundraising · 2026-10-05

Venture debt for startups: when it fits and which terms to fight

Venture debt fits right after an equity round, with 12+ months of runway and a named milestone. Size it near 20–40% of the round. Fight the draw window, MAC, and covenants.

You are deciding whether to add a venture loan on top of your equity. It fits in a narrow window: within a few months of a fresh equity round, with at least 12 months of runway before the debt, to buy about 6 more months toward a milestone the next round will price (SVB). Size it near 20–40% of the last round (SVB). The lender is underwriting your investors, not your cash flow (Fred Wilson, AVC). Skip it when runway is already short or the goal is to dodge a down round. Not legal, tax, or financial advice.

Fit check: when venture debt fits

SituationFits whenSkip when
Right after an equity roundClosed within a few months; 12+ months of runway exclusive of debt; investors with follow-on reserves (SVB)The round was a small insider top-up and the syndicate has no reserves (session judgment)
Runway extension to a milestoneAbout 6 extra months gets you to a product, revenue, or data proof the next round will price (SVB; Kruze)More months leave the next-round story unchanged
Equipment or capexHard assets that move you toward commercialization (SVB)You are funding operating burn and calling it capex
Insurance against a slipA draw period lets the facility sit undrawn until you need it (SVB)The lender forces an early draw while you still hold most of your cash (Kruze)
Later stage, bridge to an exitYou can pay it back from a sale, IPO, or cash flow (Wilson: fan of debt late, not early)Repayment depends on the next VC round arriving on time
Short runway or a looming down roundSeldom. Kruze: venture debt supplements equity and does not replace itYou cannot raise equity at all; in a down round a MAC clause lets the lender refuse further draws (Kruze)
Seed or pre-revenuePossible when institutional VCs back you (SVB). SVB lists $4M+ raised in a single equity round as a common qualifierYour money came from angels or friends and family (SVB)

Operator judgment from FounderNexus sessions: treat venture debt as an accelerant for a company that is working. It makes a poor last resort for one that is failing. Raise it when you do not need it. That is session judgment, not a survey.

How much to borrow

Sizing guideRangeSource
Share of last equity round20–40%SVB, Sep 2023
Share of last post-money valuationAbout 6–8%SVB, Sep 2023
Ceiling vs durable enterprise valueNo more than 10%SVB, Sep 2023
Debt service vs net monthly burnUnder 25%SVB, Sep 2023
Runway the debt should addAbout 6 months, on top of 12+ months organicSVB, Sep 2023
Share of last round (accounting firm view)20–35%Kruze, Jun 2025
Share of last round (lender term sheet guide)20–50%Mercury, updated Feb 2026

SVB’s worked example: a $20M equity round could support $4M–$8M of debt. Amortization changes burn. SVB: a company burning $250K a month with a $5M facility amortizing over 30 months sees burn rise by more than 50% once principal payments start. Put the payment schedule into the runway calculator before you sign.

fn-content has no verified venture debt atom yet. Tracked as benchmark request: venture debt sizing as % of last equity round. Until then, cite the named lender and advisor ranges above. Do not quote a blended “market” size.

What it costs

Cost lineWhat to askPublished band
InterestFixed or floating; which index; any floorKruze: often 8–12%. Mercury: heavy-covenant lenders often prime + 1–3% (5–8% total); light-covenant lenders prime + 3–4% (10–14% total)
Term and interest-onlyMonths of interest-only before principal; total termKruze: 24–48 month terms. Mercury: 3–5 years, interest-only often 12–18 months
Fees and final paymentUpfront fee; final payment as a share of the loan at maturity (Mercury)Lender-specific; get it in writing
Prepayment feeDoes it step down near maturity, or can you strike it (Mercury)Lender-specific; Mercury says you may get it removed
WarrantsCoverage, strike price, expiry, and how much vests at signing vs draw (Kruze)Kruze: 2–10% of loan amount; usually under 1% of the cap table. Mercury: light-covenant lenders 10–20%, heavy 0–5%

Kruze on warrant timing: parties often split coverage half at commitment and half at draw. If you draw only part of the facility, you pay only part of the warrant.

Terms to fight at the term sheet

TermRiskAsk for
Draw windowKruze’s example: draw required within 6 months while you hold 20 months of cash, so you make 14 payments before your cash-out date. You borrowed your own moneyA long forward commitment; draw with about 3–6 months of runway left (Kruze)
MAC and funding MACThe lender can declare default, or refuse the next tranche, on a broad “material adverse change” (Kruze)Strike it, or define it narrowly with carve-outs for market and industry downturns (Kruze)
Investor abandonmentDefault if the lender judges your investors will not keep funding you (Orrick)Objective triggers. Hellman prefers this to a MAC because your investors control it
Financial covenantsA missed revenue covenant is a default; Kruze’s sample sets one at 60% of the board plan, tested monthlyNo covenants early, or levels you clear in a bad quarter (Kruze; Mercury)
Litigation and contract defaultsSmall disputes trip a defaultA dollar threshold; Kruze’s example is $150,000–$200,000
Debt already on the balance sheetNew investors may balk at their equity repaying old debt (SVB)Size so the next lead sees a small, current loan

Hellman says lenders seldom call a subjective default, yet most insist on at least one in the documents. Kruze on down rounds: equity investors often ask the lender for 6–12 months more interest-only, and lenders that foreclose may recover only 10–20 cents on the dollar, so both sides tend to restructure.

Bank or credit fund

Mercury’s comparison: banks tend to price lower and carry heavier covenants and reporting; venture debt funds price higher with lighter covenants and more warrant coverage. SVB names the biggest founder mistake as picking a lender on price and loan size alone. Session judgment from FounderNexus matches: reference-check a lender through portfolio companies that went through a bad stretch with them, and hire counsel who lives in venture lending.

Sequence: from equity close to first draw

Venture debt after an equity round

  1. Open the conversation during the equity raise. SVB: start talking to lenders while you work the equity term sheet; your position is strongest right after close.
  2. Write the milestone and the draw month. Name what the extra months buy. Model debt service against net burn (SVB: under 25%) in the runway calculator.
  3. Collect competing term sheets. Mercury: at least two before serious negotiation. Kruze: startups often approach 2–5 lenders.
  4. Bring counsel before you sign the term sheet. Negotiate the draw window, MAC, covenants, warrants, and prepayment while you still hold the cards (Orrick; Kruze).
  5. Reference-check the lender and tell the board. Ask portfolio founders how the lender acted after a miss (session judgment). Kruze: plan about 8–12 weeks from outreach to funding.
  6. Draw on plan and re-measure. Track runway with debt service included. If the milestone slips, call the lender before the next covenant test (Kruze: keep lender communication open).

Mistakes that make debt expensive

Borrowing when runway is already short. Kruze and SVB both say raise it from strength. Short-runway paths live on when runway runs out.

Using debt to avoid a down round. In a down round the MAC lets the lender stop funding, and drawn debt becomes a restructuring problem (Kruze).

Accepting an early mandatory draw. You pay back your own cash before the cash-out date (Kruze).

Choosing on headline rate. Warrants, final payments, and prepayment fees change the real cost. SVB calls rate-and-size shopping the biggest mistake.

Stacking debt the next lead will repay. SVB: too much debt can create problems with the next equity round.

Market context: PitchBook-NVCA counted a record $62.4B of US venture debt deal value across 943 deals in 2025, down from 1,168 deals in 2024. PitchBook credits larger institutions and bigger checks, including AI infrastructure loans. A record year does not set your terms.

Pair with fundraising and finance siblings

Pick Seed paper on SAFE vs priced round. Score Series A readiness on when to raise Series A. Watch efficiency while debt service runs with burn multiple vs Rule of 40. Orient the rest of the raise from the fundraising hub.

Sources

Founders who have drawn, renegotiated, and repaid venture debt will pressure-test your draw month, covenants, and lender shortlist in a FounderNexus session.