MRR is not profit - SaaS metrics that mislead founders
MRR, ARR, LTV and ROAS look great in a pitch deck, but none of them tells you whether the company makes money. Which SaaS metrics mislead and what to watch instead.
SaaS folklore says you should celebrate every MRR milestone: the first thousand, the first ten thousand. Rightly so - they are important growth markers. The problem starts when MRR becomes the only number you look at. Because a company with €10k MRR can be deeply in the red - and often is.
MRR measures growth, not health
MRR (Monthly Recurring Revenue) is the sum of monthly subscriptions. It tells you how fast the top of your P&L is growing. It says nothing about the bottom:
- how much of that revenue is eaten by payment processing fees,
- how much it costs to acquire the customers who generate that MRR,
- how much you spend on infrastructure, tools and people.
A startup with €10k MRR that spends €7.5k on ads and €3.5k on fixed costs loses €1k+ every month, plus fees. It looks great in the pitch deck. The bank account disagrees.
Four metrics that mislead most often
1. ARR annualised from one good month
"Annualized run rate" is MRR × 12. One strong month (say, after a Product Hunt launch) multiplied by twelve produces a number that won't survive contact with churn.
2. LTV based on optimistic churn
With a small customer sample, churn of 3% vs 5% changes LTV by 40%. An LTV/CAC of 3:1 computed on three months of data is fortune-telling.
3. ROAS from the ad platform's dashboard
Platforms race each other to claim conversions - the sum of their reports is often far higher than your actual revenue. The fix is blended ROAS and POAS, which we cover separately.
4. "Revenue" meaning the number in the Stripe Dashboard
The dashboard number is gross revenue - before fees, refunds and every other cost. We explain why in why Stripe doesn't show your profit.
What to watch instead (or alongside)
Subscription metrics are valuable - as long as you can also see the foundation:
| Question | Metric |
|---|---|
| Does the company make money? | Real net profit |
| Do the ads pay for themselves? | Blended ROAS / POAS |
| How much time do I have? | Runway = cash ÷ monthly loss |
| Is growth healthy? | MRR + churn, next to profit |
A bootstrapped SaaS without profit doesn't outlive its founder's savings. A VC-backed SaaS without profit awareness burns the round faster than planned. In both cases, real net profit is the master metric.
How to see MRR and profit at the same time
You don't have to choose. Subscription analytics tools (Baremetrics, ChartMogul) will show you MRR and churn - we compare them with SeeProfit here. And SeeProfit adds the other half of the picture: Stripe revenue minus fees, ads and fixed costs - your real net profit, every month. The first 14 days are free - check whether your MRR actually pays for itself.