The Magic Number tells you whether your sales and marketing spend is generating efficient growth — and whether you should scale or optimize. Median is 1.37 (Aleph x Benchmarkit 2026, N=132), above the 1.0 efficiency threshold. Below 0.5 for an extended period means you should slow growth investment and fix fundamentals. Formula, diagnostic bands, and the relationship to CAC payback, sourced from Aleph x Benchmarkit.
Last updated: October 16, 2026 | Data year: CY-2025 actuals (primary report published June 2026) | Secondary summary, not original research⚠️ Important: This page is a curated secondary summary of public third-party industry benchmark reports. It is not original primary research. Some metrics are aggregated composite figures compiled from survey outputs. Always cross-check linked source documents before using figures in investor-facing decks, forecasts or formal business documentation. External report links may become unavailable over time as publishers archive old publications. Benchmarks skew toward VC-backed B2B SaaS; bootstrapped and AI-native SaaS businesses may diverge materially from these numbers. Median values are reference benchmarks, not mandatory performance targets.
Free to cite with attribution. Link back to this page as your source. Each data point below includes the original research institution, publication year, and a direct link to the source report.
The Magic Number is unique among SaaS metrics because it is a timing signal. It does not tell you whether your business is healthy overall — it tells you whether right now is a good time to scale your sales and marketing investment. If your Magic Number is 1.5, you can probably double S&M spend and still generate efficient growth. If it is 0.4, pouring more money into S&M will burn cash without proportional returns.
The x4 in the formula annualizes the quarterly new ARR. If you generated $68.5K in net new ARR this quarter and spent $200K on S&M last quarter, your Magic Number is ($68.5K x 4) / $200K = $274K / $200K = 1.37 — exactly the industry median. Note that "net new ARR" includes expansion revenue from existing customers, not just new-logo ARR. This is important because expansion is cheaper to generate, which inflates the Magic Number for companies with strong upsell motions.
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| Metric | Segment | Value | Source | Year | Note |
|---|---|---|---|---|---|
| Magic Number (Median) | All Private B2B SaaS | 1.37 | Aleph x Benchmarkit 2026 SaaS & AI Benchmarks, N=132 | 2026 | Primary source — above 1.0 = efficient |
| S&M Spend as % of Revenue | All Private B2B SaaS | 35% | Aleph x Benchmarkit 2026 SaaS & AI Benchmarks, N=342 | 2026 | Primary source — median, not target |
| S&M Spend as % of Revenue | Sales-led | 34% | Aleph x Benchmarkit 2026 SaaS & AI Benchmarks | 2026 | Primary source |
| S&M Spend as % of Revenue | Hybrid (PLG + Sales) | 39% | Aleph x Benchmarkit 2026 SaaS & AI Benchmarks | 2026 | Primary source — highest S&M % |
| S&M Spend as % of Revenue | Profitable SaaS | 28% | Bessemer Bessemer Cloud Benchmarks | 2025 | Primary source — profitable subset |
| S&M Spend as % of Revenue | VC-backed Growth | 52% | Bessemer Bessemer Cloud Benchmarks | 2025 | Primary source — growth subset |
| New-logo-only Magic Number (Est.) | All Private B2B SaaS | ~0.92 | Aleph × Benchmarkit Estimated from blended 1.37 | 2026 | Estimate — strips expansion ARR; varies by company expansion mix |
| Expansion CAC (per $1 ARR) | All Private B2B SaaS | $0.80 | Aleph x Benchmarkit 2026 SaaS & AI Benchmarks | 2026 | Primary source — inflates Magic Number |
For detailed S&M spend benchmarks by funding status and GTM model, see our S&M Spend benchmarks page — S&M efficiency is the denominator of the Magic Number.
Key insight: The median Magic Number of 1.37 means the average SaaS company generates $1.37 in new ARR for every $1 of S&M spend — efficient by historical standards. But this number is inflated by expansion revenue: expansion CAC is $0.80 per dollar vs $1.63 for new logos. A company that derives 30% of net new ARR from expansion will have a higher Magic Number than a company that relies entirely on new-logo acquisition, even if its new-logo efficiency is identical. Always calculate both a blended Magic Number (all net new ARR) and a new-logo-only Magic Number to understand whether your efficiency comes from acquisition or expansion. The estimated new-logo-only median of ~0.92 means the average company's pure acquisition efficiency is below the 1.0 threshold — expansion revenue is what pushes the blended number to 1.37.
The Magic Number is most useful as a quarterly decision tool. Track it each quarter and use it to decide whether to increase, maintain, or decrease S&M investment.
| Magic Number | Signal | Action |
|---|---|---|
| >2.0 | Exceptional efficiency. You are significantly under-spending on growth. | Aggressively scale S&M. Hire more reps, increase ad spend, expand channels. You are leaving growth on the table. |
| 1.0–2.0 | Efficient growth. Median is 1.37. | Maintain or gradually increase S&M spend. Test new channels while efficiency holds. |
| 0.75–1.0 | Moderate. Below the efficiency threshold but not critical. | Optimize before scaling. Improve conversion rates, refine targeting, reduce wasteful spend. Do not add headcount yet. |
| 0.5–0.75 | Inefficient. S&M spend is not generating proportional returns. | Slow growth investment. Audit channels, cut bottom performers, fix onboarding and pricing. Re-test before scaling. |
| <0.5 | Critical. Each S&M dollar generates less than $0.50 in new ARR. | Hit the brakes. Freeze S&M hiring, cut paid acquisition, focus on retention and expansion. Fix fundamentals before any new investment. |
Threshold derivation: The bands above are derived from industry practice and the Aleph × Benchmarkit distribution (median 1.37), not official thresholds from any single report. They are reference guidelines, not hard rules.
Early-stage exception: Companies below $1M ARR can temporarily operate below 0.5 while building product-market fit and refining their GTM motion. This is expected and not necessarily a warning sign. But if you are above $5M ARR with a Magic Number below 0.5 for two consecutive quarters, that is a structural problem — not a temporary phase.
The Magic Number and CAC payback measure related but distinct aspects of S&M efficiency. The Magic Number is a quarterly timing signal (is now a good time to scale?). CAC payback is a cash flow metric (how long until customers repay their acquisition cost?). They should be used together.
| Scenario | Magic Number | CAC Payback | Interpretation |
|---|---|---|---|
| Ideal | >1.0 | <16 months | Efficient growth AND fast capital recovery. Scale aggressively. |
| Growth but cash-intensive | >1.0 | >20 months | Efficient growth but slow payback. Scale only if you have capital to float 20+ months of customer cost. Bootstrapped: be cautious. |
| Fast payback but low growth | <0.75 | <12 months | Customers repay quickly but you are not generating enough new ARR. Optimize conversion and increase spend — the unit economics work. |
| Danger zone | <0.5 | >24 months | Inefficient growth AND slow payback. Immediate intervention: cut spend, fix fundamentals, raise prices. |
Real-world example: A PLG company might have a Magic Number of 1.8 (very efficient) but CAC payback of 8 months (fast) — this is the ideal scenario, and the company should scale as fast as possible. An enterprise SaaS company might have a Magic Number of 1.2 (efficient) but CAC payback of 22 months (slow) — the growth is efficient, but the company needs significant working capital to fund it. A mid-market company might have a Magic Number of 0.6 (inefficient) but CAC payback of 10 months (fast) — the unit economics work once customers sign up, but the top-of-funnel conversion is broken; fix conversion before scaling.
The chart below shows the Magic Number spectrum with action zones. The industry median of 1.37 sits firmly in the "efficient growth" zone. Most companies should aim to stay above 1.0 when scaling S&M.
Median 1.37 from Aleph x Benchmarkit 2026 (N=132). Bands are derived from industry practice, not official report thresholds.
How to use this quarterly: Calculate your Magic Number each quarter. If it is above 1.0 for two consecutive quarters, you have a green light to increase S&M budget by 20-30%. If it drops below 0.75, pause new S&M hiring and audit your funnel — the problem is usually in conversion (top-of-funnel to demo, demo to close) or in onboarding (slow time-to-value delays expansion revenue). If it is below 0.5, cut paid acquisition immediately and focus on retention and expansion until efficiency recovers.
Use our free calculators to measure your company against these industry benchmarks:
Measure return on ad spend — a channel-level view of S&M efficiency.
Project net new ARR by quarter — the numerator in your Magic Number.
Calculate gross margin to understand how much of new ARR converts to profit.
Track monthly growth and see how S&M investment translates to ARR growth.
Explore other verified SaaS metric benchmarks, each with source-linked data and free-to-cite URLs:
S&M as % of revenue (35% median), Magic Number 1.37, by funding status.
Median 16 months, PLG 10 months, enterprise 18-24. Expansion CAC $0.80.
LTV:CAC ratios (median 4.1x), CAC payback, and median CAC by ARR stage.
Paid ad ROAS, expansion revenue share, and upsell/cross-sell rates.
Growth + profit margin framework. Median 25%, bootstrapped vs VC-backed.
Gross vs Net Revenue Retention: why expansion masks churn, by GTM and ARR.
Data sources: All statistics on this page are compiled from publicly available industry benchmark reports:
See our master benchmark hub for consistent definitions of ARR, S&M spend, gross churn, and net retention across all benchmark pages.
Metric definitions: Magic Number = (Current Quarter Net New ARR x 4) / Previous Quarter S&M Spend. The x4 annualizes quarterly new ARR. Net new ARR includes new-logo ARR + expansion ARR - churned ARR. Some variants use only new-logo ARR (excluding expansion), which produces a lower number. S&M spend = total sales + marketing expenses in the quarter. Expansion CAC = S&M attributed to upsells / expansion ARR.
Time period: Magic Number is a quarterly metric. Do not annualize S&M spend or use trailing-12-month figures — the formula is specifically designed for quarter-over-quarter comparison because it is a timing signal. Calculate it each quarter and track the trend, not just the absolute value.
Limitations: (1) The Magic Number includes expansion revenue in net new ARR, which inflates the metric for companies with strong upsell motions. Always calculate both blended and new-logo-only variants. (2) The diagnostic bands (above 1.0 = efficient, below 0.5 = brake) are derived from industry practice and our analysis, not official thresholds from any single report. (3) Below $1M ARR, the Magic Number is volatile and less useful — early-stage companies may operate below 0.5 temporarily. (4) S&M spend definitions vary (some include stock-based comp, some do not), making cross-company comparisons imprecise. (5) Median values are reference benchmarks, not company performance targets. (6) This is a secondary compilation, not original survey research. View the full collection of 54+ SaaS benchmarks in the master hub.
The benchmarks above are compiled from Aleph × Benchmarkit (342 cos, N=132 for Magic Number) and Bessemer Cloud Benchmarks. The full source PDFs contain segment-level breakdowns by ARR band, GTM motion, and pricing model that we've summarized here.
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