Rule of 40 by ARR Tier (2026)

Rule of 40 median scores for private SaaS at $1M to $250M+ ARR tiers, with the public-comp anchor where data is available. Growth vs margin composition by tier, scoring weight in 2026, and how M&A buyers re-weight the score.

Why Rule of 40 should not be one number

The Rule of 40 framework (growth rate plus EBITDA margin should exceed 40) was developed against a particular scale of public SaaS companies in the mid 2010s. It was a useful heuristic for a $250M+ ARR cohort. It is misleading when applied unchanged to $5M ARR private companies and equally misleading when applied unchanged to $500M ARR mature SaaS.

The composition shifts dramatically across the tiers. A $1M ARR company hitting Rule of 40 typically does so with extremely high growth and deeply negative margin. A $250M ARR company hitting Rule of 40 typically does so with moderate growth and meaningful positive margin. Both clear the threshold but the operating realities are completely different.

The tiered view below resolves the comparison problem. At each ARR tier, what does a Rule of 40 median actually look like, and what composition gets you there? The reference set is KeyBanc SaaS Survey for private cohorts, the Bessemer Emerging Cloud Index and Meritech comp set for public tiers, and SEC 10-Q filings for single-name verification.

Rule of 40 medians by ARR tier

ARR tier	Private median R40	Public anchor R40	Typical growth	Typical EBITDA margin
$1M ARR	55-90	n/a (sub-public)	200%+	-120% to -50%
$5M ARR	40-65	n/a (sub-public)	100-150%	-80% to -25%
$10M ARR	35-55	n/a (sub-public)	70-100%	-50% to -10%
$25M ARR	35-55	limited (some recent IPOs)	45-75%	-25% to +5%
$50M ARR	35-50	30-50 median	30-55%	-5% to +20%
$100M ARR	32-48	30-45 median	20-40%	+10% to +30%
$250M+ ARR	30-45	32-42 median	15-30%	+15% to +40%

Private medians: KeyBanc CMS SaaS Survey 2024 cohorts + triangulated against OpenView Expansion SaaS Benchmarks. Public anchor: Bessemer Emerging Cloud Index + Meritech comp set. All numbers as of May 2026.

The shape of the curve, tier by tier

Read the table above as a series of trade-offs that play out at each tier:

$1M to $10M ARR: almost all of the score comes from growth. EBITDA margin is deeply negative and that is expected. A company in this tier with Rule of 40 above 50 is growing fast enough to absorb the burn. A company below 30 is either growing too slow or burning too indiscriminately.

$10M to $50M ARR: growth and margin start to balance. EBITDA margin should be moving toward zero through this band. Continued deep negative margin without a clear path to positive begins to compress the multiple a buyer or investor pays.

$50M to $250M ARR: margin component is now a real share of the score. Public comp data becomes the reference. Rule of 40 above 50 marks you as top quartile of the public cohort. Below 30 marks you as bottom decile.

$250M+ ARR: growth has compressed to the 20 to 30 percent range for most names. Margin does the heavy lifting on the score. Companies that did not build margin discipline at earlier tiers find this very hard to claw back without a painful cost-takeout cycle.

Growth-weighted vs balanced scoring

The 2021 market priced growth aggressively. A SaaS company hitting Rule of 40 via 60 percent growth and minus 20 percent margin commanded a meaningful premium over one hitting Rule of 40 via 20 percent growth and 20 percent margin. The implicit scoring was growth-weighted, with each percentage point of growth roughly worth 1.5 to 2 percentage points of margin in the multiple paid.

The 2026 market is much closer to balanced. The reset moved investor preference toward demonstrated cash-flow capacity. The growth premium narrowed. The composition penalty for being out of balance (deeply negative margin alongside slowing growth) widened.

The practical implication for planning: do not over-index growth investments that depend on a 2021-style multiple expansion. The companies that compounded best through the reset were those that held growth roughly in line with their peer median while materially improving margin. The Iconiq cohort of growth-stage SaaS showed median EBITDA margin improvement of roughly 18 percentage points from 2021 to 2025 with median growth rate falling roughly 12 percentage points, a net Rule of 40 lift of 6 percentage points.

How M&A buyers re-weight Rule of 40

Strategic buyers and PE buyers use Rule of 40 differently in their valuation models.

Strategic buyers use Rule of 40 as one of many screens. They will pay through a weak Rule of 40 if the strategic fit is strong (the asset plugs a gap, accelerates a roadmap, brings a customer base they value). Strategic-buyer transaction data shows weak correlation between Rule of 40 and EV/ARR paid, with strategic-fit factors dominating.

PE buyers use Rule of 40 as a primary screen. Their underwriting model is built on cash-flow generation over a 5 to 7 year hold. A weak Rule of 40 implies either a growth gap they have to fix or a margin gap they have to fix, and both require capital. PE transaction data shows strong correlation between Rule of 40 and EV/ARR paid, with sub-30 Rule of 40 targets typically trading at a 1.5x EV/ARR discount to peers above 40.

For the valuation-multiple side in detail (and the deal-type breakouts strategic vs PE), see saasvaluationmultiple.com/rule-of-40 and our own M&A diligence page for the metric audit buyers run before they price.

Honest reading of the tier table

Three reading-rules to apply when comparing your number to the tier median above.

Use GAAP EBITDA margin, not adjusted. Adjusted EBITDA removes stock-based comp, transaction costs, restructuring. For internal stress-testing the GAAP number is the right comparison to the median. The adjusted number is useful for investor presentation but should not be confused with the operating reality.
Use trailing-twelve-month growth, not last-quarter annualised. Quarter-on-quarter annualised growth overstates volatility. Trailing-twelve-month smooths it. The benchmark medians are built on trailing-twelve-month figures.
Compare to your ARR tier, not the broad average. A $5M ARR company comparing to the $250M+ public median is cherry-picking the most favourable benchmark. The matching tier row is the honest reference.

Calculate your Rule of 40 + cross-reference

Run the calculator, compare to your tier row, decide what to fix first.

Rule of 40 calculator ARR + growth rate Gross margin calculator Burn multiple calculator All metrics by ARR tier Public SaaS dashboard

For the Rule of 40 to multiple translation, see saasvaluationmultiple.com. All numbers as of May 2026.

Frequently Asked Questions

Why segment Rule of 40 by ARR tier?

Because the components compress at very different rates as you scale. Growth rate falls fast (a $1M ARR company growing 200 percent has the same Rule of 40 contribution as a $50M ARR company growing 30 percent). EBITDA margin rises slowly. A single Rule of 40 target across tiers is misleading. Tiered targets reflect the actual operating reality, and they prevent the trap of holding a $50M ARR company to the growth profile of a $5M ARR company.

Is Rule of 40 weighted to growth or balanced?

Public market scoring used to be growth-weighted (every point of growth was worth more than a point of margin to the multiple). The post-2022 reset moved scoring toward balanced. The 2026 market increasingly treats them as roughly equivalent at the median, with growth still earning a small premium per point but no longer dominating. The implication for private SaaS planning: the company hitting Rule of 40 via 20 percent growth and 20 percent margin trades at a similar multiple to the one hitting Rule of 40 via 35 percent growth and 5 percent margin, where in 2021 the latter would have commanded a 30 to 50 percent multiple premium.

What is a good Rule of 40 score for SaaS?

Above 40 is the historical threshold and still useful as a binary screen. Above 50 is top quartile. Above 60 is top decile. Below 30 needs attention because the company is neither growing fast enough nor profitable enough to clear the screen. The composition matters as much as the score. A score of 45 made up of 80 percent growth and -35 percent margin is a different business than a score of 45 made up of 25 percent growth and 20 percent margin. Both clear the threshold; both will be valued differently.

How do M&A buyers re-weight Rule of 40 vs valuation multiple?

Strategic buyers tend to under-weight Rule of 40 because they care about strategic fit. PE buyers over-weight it because their underwriting model is built on cash-flow generation. The numerical evidence: public SaaS at Rule of 40 above 40 trade at roughly 2x EV/ARR premium to peers below 40 (Meritech comp data). PE-backed private SaaS show roughly the same relationship in transaction data, with steeper discounts for sub-30 Rule of 40 targets. Strategic-buyer deals show weaker correlation between Rule of 40 and multiple paid.

What is the EBITDA margin component for unprofitable SaaS?

It is genuinely negative and you should not soften that in your board pack or fundraise materials. A $10M ARR SaaS growing 100 percent with EBITDA margin of negative 30 percent has a Rule of 40 score of 70, which is exceptional. The same company calling its margin zero by removing stock-based comp or other adjustments overstates the score. Investors will recompute on a defensible basis. The right approach is to show GAAP and non-GAAP side by side and explain the bridge in a footnote. The conservative score wins more trust than the optimistic score.

How do I improve my Rule of 40 score?

Faster than improving growth, the highest-leverage move is removing low-margin opex. Cutting S&M spend on channels with payback longer than 24 months immediately improves EBITDA margin while only marginally slowing growth (because long-payback channels contribute slowly to the trailing growth rate anyway). The second-highest leverage move is gross margin discipline: hosting cost optimisation, customer success cost categorisation, and any services revenue that runs at sub-30 percent margin. Growth itself is the slowest lever to move (cycle time of any growth investment is 6 to 18 months).