You don't need a Baremetrics dashboard
If you've ever searched "what SaaS metrics should I track," you've probably landed on a blog post listing 15-20 metrics with enterprise-grade formulas and benchmarks from companies with 10,000 customers. Net Revenue Retention. LTV:CAC ratio. Expansion revenue cohort analysis.
And you're sitting there with 43 customers and $3,200 in MRR thinking... do I actually need all of this?
Short answer: no. Most metrics advice is written for Series B companies with a dedicated finance team. If you're a solo founder or running a tiny team, tracking 15 metrics every month is not just unnecessary. It's actively harmful, because you'll spend more time measuring than building.
The problem with tracking everything
Think of it like a car dashboard. Your car has maybe 200 sensors under the hood. But the dashboard only shows you speed, fuel, engine temperature, and a few warning lights. That's enough to drive safely. You don't need a real-time readout of your alternator voltage while merging onto the highway.
SaaS metrics work the same way. There are dozens of things you could measure. But at early stage, most of them are either noisy, misleading, or both.
Here's what I mean by noisy: if you have 25 customers and 1 churns, your churn rate is 4%. Next month, zero churn, and it drops to 0%. The month after, 2 churn, and suddenly you're at 8%. That looks like a wild roller coaster, but it's just small numbers being small numbers. (This doesn't mean churn rate is useless. It means you need to read it alongside the absolute numbers.)
And misleading? LTV requires dividing by your churn rate. If your churn rate is swinging between 0% and 8% month to month, your LTV calculation is basically random. You'll compute a "lifetime value" of $2,400 one month and $800 the next. Neither number means anything.
So the question isn't "what metrics exist?" It's "what metrics actually help me make better decisions right now?"
The 5 metrics that matter when you're small
I think a solo SaaS founder with fewer than 100 customers needs exactly five metrics every month. Not three, not twelve. Five. Here's each one with the formula and what it actually tells you.
1. MRR (Monthly Recurring Revenue)
MRR is nothing but the total monthly revenue from all your active subscriptions, normalized to a monthly amount.
Formula:
MRR = sum of (plan_amount × quantity) for all active subscriptions
For annual plans, divide by 12. A customer paying $588/year contributes $49/month to your MRR.
What it tells you: How big is the business right now? This is your single most important number. Everything else is context around this one.
Example: You have 52 active customers. 40 are on your $49/month plan, 8 are on your $99/month plan, and 4 are on an annual plan at $588/year. Your MRR is (40 × $49) + (8 × $99) + (4 × $49) = $1,960 + $792 + $196 = $2,948.
2. Net MRR Change
Net MRR change is nothing but how much your MRR grew or shrank compared to last month, broken down by source.
Formula:
Net MRR Change = New MRR + Expansion MRR - Contraction MRR - Churned MRR
Where:
- New MRR = revenue from customers who started paying this month
- Expansion MRR = additional revenue from customers who upgraded
- Contraction MRR = revenue lost from customers who downgraded
- Churned MRR = revenue lost from customers who cancelled
What it tells you: Are you growing, shrinking, or flat? And why? A single number like "+$310" tells you something, but the breakdown tells you more. If you gained $500 from new customers but lost $190 from churn, that's a very different story than gaining $310 from upgrades with zero churn.
Example: This month you gained 6 new customers on the $49 plan (+$294 new MRR), one customer upgraded from $49 to $99 (+$50 expansion), nobody downgraded ($0 contraction), and 2 customers on the $49 plan cancelled (-$98 churned). Net MRR change = $294 + $50 - $0 - $98 = +$246.
3. Customer Churn Rate
Customer churn rate is nothing but the percentage of customers who cancelled during the month, measured against how many you had at the start.
Formula:
Customer Churn Rate = (Churned Customers / Start-of-Month Customers) × 100
The denominator matters here. Start-of-month customers means the customers who were active before the month began. Don't include new customers who signed up this month in the denominator. They haven't had a full month to potentially churn yet. (This is the part that most spreadsheets get wrong.)
What it tells you: How fast are you losing customers? At small scale, always read this alongside the absolute number. "2 of 48 churned (4.2%)" is much more useful than just "4.2%."
Example: You started the month with 48 active customers. 2 cancelled during the month. Customer churn rate = 2 / 48 × 100 = 4.2%. You also gained 6 new customers, ending at 52 active. But those 6 new signups don't affect your churn rate calculation for this month.
4. ARPU (Average Revenue Per User)
ARPU is nothing but your MRR divided by your number of active customers. It tells you how much each customer pays you on average.
Formula:
ARPU = Ending MRR / Active Customers
What it tells you: Is your average customer paying more or less over time? If ARPU is rising, it means you're either attracting higher-value customers or your existing customers are upgrading. If it's falling, you might be acquiring lots of low-tier customers or seeing downgrades.
Example: Your ending MRR is $2,948 and you have 52 active customers. ARPU = $2,948 / 52 = $56.69. Last month it was $54.10. The increase suggests that the new customers and upgrades are pulling the average up. That's a healthy sign.
5. Quick Ratio
Quick Ratio is nothing but the ratio of revenue you're gaining to revenue you're losing. Think of it as a single number that captures whether you're filling the bucket faster than it's leaking.
Formula:
Quick Ratio = (New MRR + Expansion MRR) / (Churned MRR + Contraction MRR)
What it tells you: Growth efficiency in one number. A Quick Ratio of 4 means for every dollar you lose, you gain four. Generally, above 4 is excellent, 2-4 is healthy, and below 1 means you're shrinking.
Example: Using the numbers from earlier: ($294 + $50) / ($98 + $0) = $344 / $98 = 3.5. That's solid for an early-stage SaaS. You're gaining revenue faster than you're losing it, but there's room to improve either by reducing churn or increasing acquisition.
One caveat: if you had zero churn and zero contraction in a month (it happens when you're small), the Quick Ratio is undefined because you'd be dividing by zero. That's actually a great month. No need to force a number.
What about LTV, CAC, and NRR?
You might be wondering why I left out some of the "classic" SaaS metrics. Here's the honest answer.
LTV (Lifetime Value) requires a stable churn rate to be meaningful. If you have 40 customers and your monthly churn rate bounces between 0% and 8%, your LTV calculation will jump all over the place. It's not that LTV doesn't matter. It's that it doesn't stabilize until you have enough customers for the churn rate to settle into a pattern. I'd wait until you're consistently above 100 customers before relying on it.
CAC (Customer Acquisition Cost) is genuinely important, but you can't get it from Stripe data alone. It requires knowing what you spent on marketing and sales, which lives in your bank account and ad dashboards, not your billing system. Track it separately if you're spending real money on acquisition. But it's not a Stripe CSV metric.
NRR (Net Revenue Retention) is the enterprise version of "are existing customers paying you more or less over time?" At small scale, your MRR movement breakdown (expansion vs. contraction vs. churn) gives you the same signal with more clarity. NRR becomes useful when you have enough customers that the aggregate percentage is stable.
So don't ignore these metrics forever. Just know that they become reliable later, and tracking unreliable numbers doesn't help you make better decisions.
The spreadsheet way vs. the faster way
You can absolutely track all five of these metrics in a spreadsheet. Export your Stripe subscriptions CSV every month, build formulas for each metric, and maintain the sheet over time. I've done it. It works.
The tricky parts are:
- Getting the churn rate denominator right (start-of-month customers, not end-of-month)
- Normalizing annual plans to monthly amounts
- Correctly classifying MRR as new vs. expansion vs. churn when customers change plans
- Doing this consistently every single month without making copy-paste errors
And that last one is the real killer. The first month is fun. By month four, it's a chore. By month eight, you've skipped two months and the spreadsheet has a formula error you haven't noticed.
If you'd rather skip the spreadsheet, MetricMint computes all five of these metrics from your Stripe CSV export in a few minutes. You get a clean monthly metrics pack with the numbers, the MRR waterfall breakdown, and a per-customer detail view. No API integration needed, no dashboard to maintain.
So here's the takeaway
If you're a solo SaaS founder tracking your metrics monthly, here's what I'd focus on:
- MRR tells you how big the business is right now
- Net MRR Change tells you whether you're growing and why
- Customer Churn Rate tells you how fast you're losing customers (read it with the absolute numbers)
- ARPU tells you whether your pricing and customer mix are improving
- Quick Ratio tells you if growth is outpacing losses
Five metrics. That's it. You can track them in 15 minutes a month once you have the process down, and they give you a clear picture of whether your SaaS is healthy.
Personally, I think the biggest mistake isn't tracking the wrong metrics. It's not tracking any metrics consistently. A founder who checks five numbers every month for a year will make better decisions than one who builds an elaborate 20-metric dashboard in January and abandons it by March.
Keep it simple. Keep it consistent. The numbers will tell you what you need to know.