What Is Burn Multiple? Cash Efficiency Explained
Burn multiple, coined by Craft Ventures' David Saks, measures how efficiently a SaaS company converts cash into new recurring revenue. It divides net monthly burn by net new ARR — telling you how many dollars you burn for each dollar of new ARR created. In a capital-constrained environment, burn multiple is one of the most important metrics investors evaluate.
Quick Answer
Burn Multiple = Net Burn ÷ Net New ARR
Below 1.0 = excellent. 1.0-2.0 = acceptable. Above 2.0 = high risk.
Why Burn Multiple Matters
In the zero-interest-rate era, SaaS companies were rewarded for growth regardless of cost. Burn multiple emerged as a corrective — a way to measure not just how fast you grow, but how much cash it takes to achieve that growth. A company growing ARR by $100K/month while burning $200K/month has a burn multiple of 2.0 — it costs $2 to create $1 of new ARR. That is unsustainable in the long run.
Burn multiple is especially useful for comparing companies at different stages. A seed-stage company burning $50K/month to add $80K of ARR (burn multiple 0.63) is more capital-efficient than a Series B company burning $500K/month to add $400K of ARR (burn multiple 1.25), even though the Series B company is growing faster in absolute terms.
How to Calculate Burn Multiple
Burn Multiple Formula
Burn Multiple = Net Burn ÷ Net New ARR
Example: Your monthly net burn is $50,000 (you spend $50K more than you earn each month). You added $80,000 in net new ARR this month. Burn multiple = $50,000 ÷ $80,000 = 0.63 — excellent.
Example: Your monthly net burn is $120,000 and you added $60,000 in net new ARR. Burn multiple = $120,000 ÷ $60,000 = 2.0 — high risk, needs improvement.
Burn Multiple Benchmarks
| Burn Multiple | Verdict | What It Means |
|---|---|---|
| < 0.5 | World-class | Generating $2+ of ARR per $1 burned |
| 0.5-1.0 | Excellent | Highly capital efficient |
| 1.0-2.0 | Acceptable | Burning $1-2 per $1 of new ARR |
| > 2.0 | High Risk | Burning more than $2 per $1 of new ARR |
Burn Multiple vs Rule of 40
Both metrics measure SaaS efficiency, but from different angles. The Rule of 40 compares growth rate to profit margin as percentages. Burn multiple compares absolute dollars burned to absolute dollars of new ARR created. Burn multiple is more useful for pre-profitability companies because it directly measures how much cash growth is consuming, while the Rule of 40 is more useful for mature companies that may be profitable.
How to Improve Your Burn Multiple
- Increase net new ARR. Drive more revenue growth through efficient acquisition, expansion, and retention. More ARR per month lowers the ratio.
- Reduce net burn. Cut non-essential spend, optimize infrastructure costs, or reduce overhead. Lower burn improves the ratio even if ARR growth stays flat.
- Improve gross margin. Higher gross margin means more revenue flows to the bottom line, reducing burn per dollar of growth.
- Shift to efficient channels. Move spend from expensive paid acquisition to organic, referrals, and product-led growth that generate ARR at lower cost.
- Reduce churn. Lower churn means more of your existing revenue base is retained, so less new ARR is needed to offset losses.
Common Burn Multiple Mistakes
Common Mistake
Using gross burn instead of net burn. Net burn accounts for revenue, so it reflects the actual cash being consumed. Gross burn (total expenses) ignores revenue and overstates the burn multiple, especially for later-stage companies with significant revenue.
Common Mistake
Using gross new ARR instead of net new ARR. Net new ARR accounts for churn and contraction. If you add $100K in new ARR but lose $40K to churn, your net new ARR is $60K. Using gross new ARR understates the burn multiple and hides the cost of churn.
Calculate Your Burn Multiple
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