One live score
Growth and margin come from your connected data and combine into the Rule of 40 as the numbers land. No quarter-end scramble, no copy-paste from a tab someone forgot to refresh.
SaaS metrics
Your Rule of 40, live, so you never rebuild it the night before a board call
CX Cash adds growth and margin straight from your numbers, tracks the line month over month, and tells you which of the two is moving the score.
CX Cash
YoY growth
62%
FCF margin
-14%
Rule of 40
48
Trend
Above 40 for 5 straight months ▲ +6 pts
One number sets the tone for every investor conversation
Land under 40 and the next raise starts on the back foot, fair or not. The catch is that most founders only work it out once a quarter, by hand, off a sheet that's already a month old. So you find out you slipped below the line eight weeks after it happened, right when you can least afford the surprise.
What you can do
The whole trend line
Watch the score every month with the direction it's heading and a count of how long you've held above or below 40. That's the context a single quarterly figure never gives you.
Growth vs margin, split out
See at a glance whether it's growth or margin pulling the number down, so you walk into the room knowing which lever to talk about.
1 number
growth + margin, combined
Live
updates as data lands
40
the line investors read
Onboard in three steps
- 01
Connect your data
Link QuickBooks and your billing system. CX Cash derives growth and margin for you, with no manual mapping to keep current.
- 02
Read your score
Your live Rule of 40 lands on the dashboard with the full month-over-month history, not just this quarter's point.
- 03
Work the lever
Drill into growth versus margin and model the change that puts you back over 40 before the next update goes out.
Early access
Be first to use Rule of 40 analysis
Drop your email — we'll invite you to test Rule of 40 analysis with your own numbers and tell you the moment it's live. No spam.
Go deeper on SaaS Metrics & Unit Economics
Read more on SaaS Metrics & Unit Economics →Questions
How is the Rule of 40 calculated? +
Add your year-over-year revenue growth rate to your profit margin, usually FCF margin or EBITDA margin. A combined figure of 40% or more is the rough signal that you're trading growth for profit at a healthy rate.
Which margin does CX Cash use? +
You pick FCF margin or EBITDA margin, and CX Cash applies the same one every period so the trend line actually means something month to month.
Can I tell what's dragging the score down? +
Yes. The breakdown shows growth and margin separately, so a glance tells you which side is holding you back instead of leaving you to guess.
What if my growth is high but margin is deeply negative? +
That's common early on, and the Rule of 40 is built to weigh exactly that trade-off. CX Cash shows both inputs so you can see whether the growth you're buying justifies the burn, which is the question a board will ask anyway.