Burn Rate Benchmarks & Burn Multiple: What Good Looks Like

How much burn is healthy at each stage, how to compute burn multiple and net burn efficiency, and the runway thresholds investors use before they pass on a round.

1. Burn benchmarks by stage

“Is our burn too high?” has no absolute answer — it depends on stage, market, and where your team sits. But the ranges below describe where most software startups actually operate, and they are useful precisely because being far outside them demands an explanation you should be able to give in one sentence.

Two structural notes. Runway targets barely move across stages, because they are set by how long the next raise takes, not by company size. And the milestone column matters more than the burn column: burn is only justified by the milestone it buys.

2. Burn multiple: efficiency in one number

Popularised by David Sacks, burn multiple compares cash consumed with recurring revenue added. It cuts through vanity growth: doubling revenue is unimpressive if it took four dollars of burn per dollar added.

Burn multiple = net burn (period) ÷ net new ARR (period)

Example: $300,000 net burn in a quarter, $200,000 net new ARR
         → 300,000 ÷ 200,000 = 1.5x

Use net new ARR, not gross new ARR: churn and downgrades belong in the denominator. A team adding $250,000 of new ARR while losing $100,000 to churn has $150,000 net, and its true burn multiple is far worse than the headline.

3. Other efficiency ratios worth tracking

Net burn efficiency

The inverse view: net new ARR divided by net burn. Above 1.0 means each dollar burned adds more than a dollar of recurring revenue. Some teams prefer it because “higher is better” reads more naturally on a dashboard.

CAC payback

Months of gross profit needed to recover the cost of acquiring a customer. Under twelve months is healthy for SMB software; under eighteen for enterprise. When CAC payback exceeds remaining runway, that spend is actively shortening your life.

Rule of 40

Growth rate plus profit margin should exceed 40 for mature SaaS. It is a poor fit before real scale, but it explains why investors tolerate heavy burn in a fast grower and none at all in a flat one.

• Burn multiple answers: is growth efficient?
• CAC payback answers: is acquisition efficient?
• Runway answers: do we have time to fix either?

Definitions for the revenue side of these ratios — ACV, ARR, and TCV — are covered in the SaaS metrics guide.

4. Runway thresholds investors watch

1. 24+ months. Comfortable. You are judged purely on progress, not on survival.
2. 12–18 months. Normal operating zone. Start planning the next raise at the top of this band.
3. 9 months. The practical deadline to begin a raise. Processes routinely take three to six months.
4. 6 months. Leverage is gone. Expect harder terms and bridge conversations.
5. < 3 months. Survival mode. Cut to a default-alive plan first, then negotiate.

5. Benchmarks for bootstrapped and solo founders

Venture benchmarks mislead bootstrappers. Without external funding, the target is not efficient burn — it is being default alive on a timeline your savings can absorb. Useful markers:

• Combined runway. Count personal living costs alongside business costs; the business does not fail alone.
• Six months minimum. Below that, the pressure starts making your product decisions for you.
• Tax buffer at 25–30% of profit. Excluded from runway, held separately.
• Fixed-cost ceiling. Keep unavoidable monthly cost under one month of worst-case revenue.

Check where you land today with the burn rate and runway calculator, then read the runway extension playbook if the number is below nine months.

6. FAQ

What is a good burn multiple?

Under 1x is exceptional, 1–1.5x great, 1.5–2x good, 2–3x tolerable very early, above 3x a problem.

How is burn multiple calculated?

Net burn for a period divided by net new ARR added in the same period.

How much should a pre-seed startup burn?

Commonly $10k–$40k net per month, sized so the round still leaves 18–24 months of runway.

What runway do investors expect after a round?

Eighteen to twenty-four months, enough to reach the next milestone plus a buffer for a slow market.