The Rule of 40 and the 3-3-2-2-2 rule are venture yardsticks. We scored 1,700+ small SaaS against them. Most pass the first on profit and almost none follow the second.
Both rules were written for venture-backed companies. We tested them on small SaaS using BigIdeasDB TrustMRR revenue, margin and growth data, and the asking prices in our SellSide database.
The Rule of 40 is a screening score for software companies. Add the annual revenue growth rate to the profit margin. If the sum is 40 or higher, the company is balancing growth and profit well enough.
The point is the trade-off. A company can spend heavily on sales and show a loss while growing fast, or it can cut spend and show profit while growing slowly. The rule says both paths are fine if the two numbers together reach 40. These three companies all score exactly 40:
| Company | Annual growth | Profit margin | Score |
|---|---|---|---|
| Growth-led | 55% | -15% | 40 |
| Balanced | 20% | 20% | 40 |
| Profit-led | 0% | 40% | 40 |
Two definitions matter. Growth is usually year-over-year growth in recurring revenue (ARR or MRR). Our MRR, ARR and TTM revenue explainer shows how those differ. Margin is usually EBITDA margin or free cash flow margin. Pick one and keep it fixed when you compare periods, because the two margins can differ a lot for the same company.
The rule was built for companies past roughly $10M in revenue, where investors want to see that growth is not being bought at any price. Below that size, most SaaS companies are either all-in on growth with a deep loss or, in the self-funded case, already profitable. The rule has less to say at either end.
Four steps. Use the same revenue and margin definitions each time.
Step 1 is where small-company scores go wrong. One month of growth on a $400 MRR product can read as 50% after a single new customer. Compounding that month for a year produces a number that means nothing. Use at least three months of data before you trust a growth input, and cap growth at 100% so one lucky month cannot carry the score. We apply exactly that cap in the data below. If you want the arithmetic done for you, our MRR calculator and how to calculate MRR guide cover the revenue side.
We scored every startup in the TrustMRR dataset that reports monthly recurring revenue above zero, 30-day growth and last-30-day profit margin. That is 1,700+ startups. For each, we annualized 30-day growth by compounding it twelve times, capped it at 100%, and added the profit margin.
The result: 58.0% score 40 or higher. A simpler version that multiplies 30-day growth by 12 gives 57.3%, and an uncapped compounded version gives 58.0%, so the pass rate does not depend on how we treat the growth outliers. Those outliers are real noise: the largest 30-day growth figure in the data is above 88,000%, and 160+ startups report more than 100% in a month.
A pass rate of 58% means the rule is not separating strong small SaaS from weak ones. The next section shows why small SaaS passes so often.
Split the scores by what carried them. A startup can clear 40 on margin alone, on growth alone, on both, or on a mix of the two that neither would reach alone.
| How the startup clears 40 | Share of 1,700+ startups |
|---|---|
| Margin 40%+ and annualized growth 40%+ (both) | 31.1% |
| Margin 40%+, growth under 40% (margin only) | 61.0% |
| Growth 40%+, margin under 40% (growth only) | 1.9% |
| Neither alone, but the sum reaches 40 | 0.1% |
| Score under 40 | 42.0% |
Margin does the work. 92.0% of the startups have a margin of 40% or higher, the median margin is 85% (n = 1,700+), and the middle half of startups sit between 70% and 95%. Annualized growth of 40% or more needs only about 2.8% a month, yet just 33.0% clear it. Growth alone carries 1.9%.
That is the opposite of how a venture company passes. A venture SaaS at $20M revenue often runs a near-zero or negative margin and scores its 40 on 40% or 50% growth. A self-funded product at $3,000 a month has no payroll and no ad budget, so it books an 85% margin and needs nothing from growth.
The growth side of the dataset is flat. Across 3,600+ earning startups with a 30-day growth reading, the median growth is 0%. 35.6% grew, 23.6% were unchanged and 40.8% shrank. A third of the startups with growth data are not moving.
Does a bigger product pass for different reasons? We split by monthly recurring revenue. Every band clears the n = 30 floor.
| MRR band | n | Pass Rule of 40 | Margin 40%+ | Growth 40%+ | Both | Median margin | Median 30-day growth |
|---|---|---|---|---|---|---|---|
| Under $1K | 1,200+ | 58.0% | 90.7% | 31.0% | 28.9% | 90% | 0% |
| $1K to $10K | 350+ | 58.9% | 95.5% | 38.0% | 36.3% | 80% | 0% |
| $10K and above | 120+ | 55.0% | 95.8% | 40.0% | 38.3% | 75% | 0% |
| All | 1,700+ | 58.0% | 92.0% | 33.0% | 31.1% | 85% | 0% |
Three things stand out. The pass rate barely moves (55% to 59%). The median margin falls as revenue rises, from 90% to 75%, which is what you expect once a founder starts paying for contractors, support and ads. And the share growing 40% or more rises with size, from 31% to 40%, but the median band growth stays at zero.
The larger product is not "more Rule of 40". It trades a bit of margin for a bit more growth and ends up at the same pass rate. For revenue levels in this range, see our state of indie SaaS revenue and TrustMRR revenue benchmarks.
A score that 58% of a population clears is not discriminating. Three failures show up in the data.
Of the 1,700+ startups scored, 58.0% pass. Of those that pass, 39.9% have zero or negative 30-day growth: most were flat and the rest were shrinking. Margin is so high that a company with no growth, or a small decline, still scores above 40. Anyone using the Rule of 40 as a health check would call these companies healthy.
Of the startups that shrank in the month, 11.2% still pass. A rule that passes a product whose revenue fell last month is measuring the cost structure, not the business.
A product earning $200 a month with a 95% margin passes. So does one earning $40,000 a month at 75%. The Rule of 40 does not know that one pays rent for a founder and the other does not. Pair it with how rare higher ARR levels are and with absolute profit in dollars.
Growth in this dataset is a 30-day reading. Compounding it assumes the next eleven months look the same. They rarely do. We cap growth at 100% and show the uncapped and the linear versions for that reason. Where a decision depends on growth, use twelve months, not one.
If you are bootstrapped with plateaued revenue, it is probably time to chat with VCs. – r/founder
That is the reflex the Rule of 40 encourages: if growth is flat, the answer must be outside money. Our data shows the more common state for a self-funded SaaS is flat growth and very high margin, a profitable small business, not a failed venture. Read the score the way a buyer would, as a profit statement.
At venture scale, the link is direct. Higher Rule of 40 scores tend to come with higher revenue multiples. At small scale we can test the link on asking prices. Our SellSide database tracks SaaS, AI and storefront app businesses listed for sale with trailing revenue, profit and asking price. Margin is profit divided by trailing revenue. AI products in the same data run thinner margins than other software, one reason AI is not replacing SaaS on price either.
| Profit margin | Listings (n) | Median asking revenue multiple | Median asking profit multiple | Median trailing revenue |
|---|---|---|---|---|
| Under 20% | 50 | 1.50x | 11.75x | $389,500 |
| 20% to 40% | 47 | 1.80x | 6.50x | $400,000 |
| 40% to 60% | 66 | 2.00x | 4.05x | $83,500 |
| 60% to 80% | 110+ | 2.70x | 3.80x | $80,000 |
| 80% and above | 160+ | 2.95x | 3.30x | $64,500 |
| All | 440+ | 2.50x | 3.90x | $104,000 |
The asking revenue multiple climbs from 1.5x under 20% margin to 2.95x at 80% and above. The correlation between margin and asking revenue multiple across the 440+ listings is 0.55. And 78.2% of the listed businesses already show a margin of 40% or more, so for sellers a Rule of 40 pass on margin is the norm, not an edge.
The profit multiple moves the other way, from 11.75x to 3.30x. That is not a contradiction. A low-margin business has little profit, so even a modest revenue multiple becomes a large multiple of the profit. Buyers of low-margin SaaS are paying for the revenue and the chance to fix the margin. Buyers of high-margin SaaS are paying for cash.
High-margin listings are smaller (median trailing revenue $64,500 versus $389,500 under 20% margin), so size could be driving the pattern. We held revenue constant. Among listings with $50K to $250K of trailing revenue, the median asking multiple is 2.1x for margin under 40% (n = 34) and 3.2x for margin of 80% or more (n = 73), with 2.2x in between (n = 59). The gap survives the size control. The other revenue bands have a cell under n = 30, so we do not report their splits.
A worked example with those medians: a SaaS with $100,000 of trailing revenue asks roughly $150,000 at a 15% margin and roughly $295,000 at an 85% margin. It is arithmetic on medians, not a quote for any business, but it shows what $70,000 of extra profit does to the price. For the full picture of how buyers price a SaaS, read SaaS valuation multiples in 2026, profit multiples by SaaS category and how to value a SaaS company.
To see what your own margin and growth mean for the price, the SaaS valuation calculator takes both inputs and returns a range. Buyers can pair it with the guide to buying a SaaS business and the acquisition due diligence checklist.
The 3-3-2-2-2 rule, also written T2D3 for triple, triple, double, double, double, is a growth path. Starting from around $1M of annual recurring revenue, a company triples ARR in year one, triples again in year two, then doubles it in each of years three, four and five.
| Year | Growth | ARR from a $1M start | Monthly pace needed |
|---|---|---|---|
| Start | n/a | $1M | n/a |
| Year 1 | 3x | $3M | 9.6% |
| Year 2 | 3x | $9M | 9.6% |
| Year 3 | 2x | $18M | 5.9% |
| Year 4 | 2x | $36M | 5.9% |
| Year 5 | 2x | $72M | 5.9% |
It is a description of the best venture outcomes. It is the shape of a company that raises money to buy growth, and it assumes the revenue is recurring. The rule has nothing to say about profit, which is why the two rules are used together: T2D3 for the growth path, Rule of 40 for the cost of getting there.
For a self-funded founder it is mostly a sanity check on advice. If a podcast guest says the target is to triple, the question is whether you are a venture business. The bootstrapped base rates say you probably are not, and that is fine. Our look at how few startups reach $1M ARR and at how long a SaaS takes to grow gives the timeline a self-funded product usually follows.
We tested the pace, not the path. A year at 3x needs about 9.6% growth a month, and a year at 2x needs about 5.9%. We counted how many of the 3,600+ earning startups with a 30-day growth reading met each.
| MRR band | n | Grew 9.6%+ (3x pace) | Grew 5.9%+ (2x pace) | Grew 100%+ in the month | Shrank |
|---|---|---|---|---|---|
| Under $1K | 2,700+ | 27.6% | 29.0% | 12.0% | 39.7% |
| $1K to $10K | 640+ | 37.3% | 41.0% | 7.3% | 43.8% |
| $10K and above | 220+ | 33.6% | 39.5% | 7.2% | 46.2% |
| All | 3,600+ | 29.7% | 31.8% | 10.9% | 40.8% |
About 3 in 10 startups were on a triple-pace month. That sounds impressive until you compare it to the 0% median. Both are true: a large minority had a good month, and the typical startup had none. The p75 monthly growth is 18.8% and the p90 is 108.7%, which tells you the top quartile is dominated by tiny bases where one customer is a large percentage.
The honest reading is that the data cannot confirm anyone is on T2D3. A 3-3-2-2-2 company needs twelve months of triple pace, then twelve more, then three years of doubling. We only see one month. What we can say is that the share with a month this strong is far above the share of businesses that ever reach the revenue where T2D3 gets interesting. Only a small fraction of earning startups reach the $1M ARR starting line.
The mid-sized bands also show the pace is not a function of size. 37.3% of the $1K to $10K band grew 9.6% or more, against 33.6% above $10K. Larger products are slightly more likely to be shrinking (46.2%), which is the normal churn that sets in without constant acquisition.
Run your own numbers, then decide which of three situations you are in.
If you are still choosing what to build, the metric matters less than the market. Our startup idea validation guide and the idea discovery tool start from documented demand rather than a formula. Compare your numbers with the SaaS metrics benchmarks for 2026 and the revenue data behind TrustMRR. The TrustMRR getting started guide and SellSide as market validation explain how to run these cuts on your own niche.
See what your margin and growth mean for your price
Enter revenue, profit and growth. Get a valuation range built from real SaaS listings and revenue data.
Open the SaaS valuation calculator →| Source | Population | What we measured | Limitation |
|---|---|---|---|
| TrustMRR startups | 1,700+ with MRR above zero, 30-day growth and last-30-day margin | Rule of 40 score: 30-day growth compounded twelve times, capped at 100%, plus margin. Pass, margin-only, growth-only splits by MRR band | Growth is one month, not a year. Margin appears to be floored at 0%, so deep losses read as 0. Startups chose to list, so this is not all SaaS |
| TrustMRR startups, growth only | 3,600+ with MRR above zero and a 30-day growth reading | Share at 3x pace (9.6% a month) and 2x pace (5.9%), median growth, shrinking share | A single month on small bases. Cannot confirm any startup sustains the pace. Margin is missing for about half of these |
| SellSide listings | 440+ SaaS, AI and storefront app listings with positive trailing revenue, profit and multiple | Median asking revenue and profit multiple by margin band, correlation, revenue-controlled split | Asking prices, not closed sales. Margin is trailing profit over trailing revenue as listed. Higher-margin listings are smaller. Cells under n = 30 withheld |
| Search results and founder threads | Google results and one public founder thread for the target questions | Question phrasing for the FAQ and one illustrative quote | Illustrative, self-selected and anonymized to the subreddit. Not statistical |
Revenue is in dollars. Revenue is shown as bands, and no startup or listing is named. The 90-day growth field is empty in the dataset, so we use only the 30-day reading. Data queried October 18, 2026.
Self-selected sample. TrustMRR startups chose to publish revenue. That tilts toward founders who want to show strong profit and toward products that are for sale. 58% is a rate inside this sample, not across all small SaaS.
One month of growth. We annualize a 30-day reading. That inflates volatile products and cannot show a trend. We cap the input and show the linear and uncapped variants, which agree within a point.
Margin definition. The margin field is a last-30-day profit margin as reported, not an audited EBITDA or free cash flow figure. A margin of exactly 0 appears 70+ times, which suggests losses are floored.
Asking is not selling. The multiples are what sellers want. Closed deals are usually lower. The direction of the margin effect is the finding, not the exact multiple.
Venture companies are not in this data. We do not claim the Rule of 40 fails for them. We say it behaves like a margin test at small scale.
The Rule of 40 says a SaaS company's annual revenue growth rate plus its profit margin should add up to 40% or more. A company growing 30% with a 10% margin scores 40. A company growing 0% with a 40% margin also scores 40. In BigIdeasDB TrustMRR data (October 2026), 58.0% of 1,700+ small SaaS startups clear it, and 92.0% of them have a margin above 40% on their own.
It is still the quickest way to read the growth-versus-profit trade-off, but it was built for venture-backed companies past roughly $10M in revenue. For a bootstrapped SaaS it is nearly always a margin test: 61.0% of the 1,700+ small SaaS we scored pass on margin alone and only 1.9% pass on growth alone. Use it as a profit check, not a growth target.
It is a venture growth path, also called T2D3. A SaaS company triples its annual recurring revenue two years in a row, then doubles it three years in a row. Starting at $1M ARR that reaches $72M in five years. It needs about 9.6% monthly growth in years one and two and about 5.9% monthly after that. It describes the top slice of venture-backed software, not a normal SaaS.
40 is the line, but the mix matters more than the total. Among 1,700+ TrustMRR startups with margin and growth data, the median margin is 85% and the median 30-day growth is 0%, so a typical small SaaS scores near 85 with zero growth. A buyer reading the same score will price the margin, not the growth: listed SaaS with 80%+ margin ask a median 2.95x revenue against 1.5x under 20% margin.
At venture scale, yes: companies above 40 tend to command higher revenue multiples. At small scale the driver is margin. In 440+ listed SaaS, AI and storefront app businesses, the correlation between profit margin and asking revenue multiple is 0.55, and within the $50K to $250K revenue band the median asking multiple is 2.1x under 40% margin and 3.2x at 80%+. These are asking prices, not closed sales.
No. The formula is growth plus margin, so it works for any recurring-revenue or subscription business. It was popularized for SaaS because SaaS companies can trade growth for profit by changing how much they spend on sales and product. Businesses that cannot flex that spend, such as a laundromat or a trucking route, have little reason to use it.
In one month, about 3 in 10. 29.7% of 3,600+ earning startups in TrustMRR grew at least 9.6% in their latest 30 days, the monthly pace that triples a year. That is a one-month reading on small bases, not a year. The median 30-day growth is 0%, and 40.8% of the startups shrank in the period. The data cannot show who sustains three years of it.
It is the same formula with a higher bar: growth plus margin of 60 or more. It is sometimes used for companies that want to show they are better than the 40 benchmark. On our data the logic reverses for small SaaS. With a median margin of 85%, most small SaaS clear 60 without growing, which is a sign the formula is measuring margin, not momentum.
Related research: SaaS valuation multiples, how to value a SaaS company, state of SaaS acquisitions, bootstrapping a company in 2026 and the research hub.
BigIdeasDB Research. (2026). Rule of 40 SaaS: What It Is and Who Passes It. BigIdeasDB. Retrieved from https://bigideasdb.com/rule-of-40-saas