SaaS
Metrics, benchmarks and playbooks for running a SaaS business on data.
How to calculate churn rate
The exact formulas for customer churn, revenue churn, net revenue churn and NRR — each with a worked example, and the annualising trap to avoid.
Annual churn rate: formula and monthly conversion
Annual churn isn't monthly × 12. The compounding formula in both directions, a conversion table, and when to measure directly instead.
Annual Contract Value (ACV)
The yearly value of a customer contract — the ACV formula, how it differs from ARR, and what it tells you about your motion.
SaaS Magic Number
How much new revenue each sales and marketing dollar buys — the magic number formula and the thresholds that matter.
Burn Rate & Burn Multiple
How much cash you burn for every dollar of net new ARR — the capital-efficiency metric investors now ask for first.
Renewal Rate
The share of contracts that renew when they come up — how renewal rate differs from retention, and what to count.
Bookings vs Billings vs Revenue
One signed deal produces three different numbers — what bookings, billings and revenue each measure and when to use which.
ARPA vs ARPU vs ASP
Three per-something revenue averages that get mixed up constantly — what each one divides by, and when to use which.
LTV vs CAC
Customer lifetime value against acquisition cost — how the two halves of unit economics relate, and how to compare them honestly.
CMRR (Committed MRR)
MRR adjusted for what you already know is coming — signed contracts not yet live, and churn already given notice.
SaaS Gross Margin
The share of revenue left after the cost of serving it — why gross margin sits underneath LTV, payback and Rule of 40.
DAU/MAU (Stickiness Ratio)
The share of monthly active users who show up daily — how to read stickiness, and what counts as good for SaaS.
NDR vs NRR
Net dollar retention and net revenue retention — two names, one metric. Where each is used and what to check before comparing.
ACV vs ARR
Contract value versus company run-rate — what each measures, how they relate, and the reporting traps between them.
ARR per Employee
Revenue divided by headcount — the one-line productivity test investors run on every SaaS company, and what counts as good.
How to calculate NRR from Stripe data
A step-by-step method for computing net revenue retention from Stripe subscriptions — and the traps that skew it.
Why your Stripe MRR is wrong
Stripe's MRR and your real MRR can quietly disagree — where the definitional gaps are in 2026, and how to build a number you can trust.
How to reduce SaaS churn
A working playbook for cutting customer and revenue churn — diagnose the leak, fix onboarding, catch the warning signs, win some back.
What is a good trial-to-paid conversion rate?
Trial conversion benchmarks by signup motion — why freemium at 3% and card-up-front at 40% can be the same quality funnel.
What is a good activation rate?
Activation benchmarks by product complexity — why 30% can be world-class, and the definition trap that makes most comparisons meaningless.
Net Dollar Retention (NDR)
The US name for net revenue retention — what NDR measures, how to calculate it, and what counts as good.
Customer Acquisition Cost (CAC)
What it really costs to win a new customer — the CAC formula, what to include in it, and how to judge the number.
LTV:CAC Ratio
The one number that says whether your growth engine makes money — how to calculate LTV:CAC and what a good ratio looks like.
CAC Payback Period
How many months until a new customer pays back their acquisition cost — the cash-flow metric that keeps growth honest.
Revenue Churn Rate
The share of recurring revenue you lose each month — gross vs net revenue churn, the formulas, and which one to watch.
MRR vs ARR
Monthly and annual recurring revenue are the same number at two time scales — when to use each, and the conversion traps to avoid.
Rule of 40
Growth rate plus profit margin should clear 40 — the formula, why it works, and how to read your score.
Negative Churn
When expansion from existing customers outgrows everything churn takes away — the most valuable state in SaaS, explained.
NRR vs GRR
Net and gross revenue retention answer different questions — what each one hides, and why you need to read them together.
Churn Rate vs Retention Rate
Two sides of the same coin — how churn and retention rates relate, and when each framing serves you better.
What is a good NRR for SaaS?
NRR benchmarks by stage, ACV and motion — where 110% is exceptional, where it's table stakes, and when a great NRR is hiding a problem.
Average SaaS churn rate: benchmarks by segment
What churn rate is normal, what's good, and how the answer changes with deal size — customer and revenue churn benchmarks for SaaS.
Churned Paying Accounts
The logos behind your Churn MRR — the direct offset to new paying accounts.
New Paying Accounts
The logos behind your New MRR — how many customers, not just how many dollars.
Engaged Accounts
The deeply-engaged core of your base — the accounts most likely to renew and expand.
Active Accounts
Accounts still showing up in the product — the usage signal that leads paying-account churn.
Average Revenue Per User (ARPU)
The value of a seat rather than a customer — the sharper lens for seat-based and product-led businesses.
Average Revenue Per Account (ARPA)
The typical monthly value of a customer — a building block for lifetime value, and a mix-shift trap.
Gross-to-Net Spread
The gap between NRR and GRR — exactly how much expansion is doing to lift your retention.
Growth Efficiency Index
How much of every dollar you win actually survives as net growth after churn and contraction.
Expansion to Contraction Count Ratio
The same trade-up story by customer count — how widespread up-tiering is, independent of deal size.
Expansion to Contraction MRR Ratio
Upsell dollars against downgrade dollars — whether your existing base is trading up or down.
Gross Churn Coverage
How many times new MRR covers the revenue you lost to churn — is fresh business outrunning cancellations?
SaaS Quick Ratio
The SaaS quick ratio — dollars gained for every dollar lost, your whole MRR bridge compressed into one number.
Time to Engaged
Signup to the second value milestone — where trying the product turns into relying on it.
Time to Activated
How fast a new signup reaches first value — and why speed to the aha moment decides everything after it.
Trials Started
A stronger intent signal than a raw signup — the bridge between the funnel top and paying customers.
Signups
The top of the funnel — a denominator for every rate below it, and a vanity number on its own.
Expansion Rate
How many of your existing customers are growing — the breadth of expansion, not just the dollars.
Trial-to-Paid Conversion Rate
The share of trials that become paying customers — the sharpest read on whether your trial proves its value.
Median Time to Return
How long the typical churned customer takes to come back — the shape of your win-back opportunity.
Win-back Rate
The share of churned customers who come back — how permanent your churn really is.
Average Company Lifespan
The company-level counterpart to account lifespan — why organisations outlast individual seats.
Average Account Lifespan
How long a paying account is expected to last — churn rate translated into a time horizon.
Realized Customer Lifetime Value
The revenue a customer has actually paid — the factual counterpart to projected cLTV.
Customers Retention Rate
The flip side of churn — and why a reassuringly high monthly rate still compounds into big annual losses.
Average Reactivation Amount
The typical MRR a returning customer comes back on — often different from what they left on.
Average Churn Amount
The typical size of a cancellation — not how many customers you lost, but how big they were.
Average Contraction Amount
The typical size of a downgrade — whether customers are trimming a little or cutting deep.
NRR Cohort
Net revenue retention by acquisition cohort — how each intake of customers holds up as it ages.
Average Expansion Amount
The typical size of an upgrade — whether your expansion comes from many small bumps or a few big ones.
Durable MRR
The revenue still standing a year from now at today's churn — the conservative floor beneath your MRR.
Average New Companies Discount Size
The typical discount per enterprise deal — how much of each company win is bought with price.
Expansion Saturation
The share of customers who have already expanded — a gauge of how much up-tier runway is left.
Average New Accounts Discount Size
How deep your concessions run per deal — not just how often you make them.
Annual Share
The portion of MRR on annual contracts — the quietest lever on how durable your revenue is.
Discounted New Companies
The company-level view of discount-driven acquisition — fewer, larger, more negotiated.
Paying Customers Movements
The MRR movements counted in customers instead of dollars — how widespread each change really is.
Discounted New Accounts
How many new customers were won with a price concession — the scale of discount-dependent acquisition.
Paying Accounts
The count of customers actually paying you — the simplest measure of how big your base really is.
Reactivation Share of Gross Adds
How much of your new revenue is really returning customers — good news that can hide a churn problem.
Discounted First Payment Rate
How often you need a discount to close — price doing work your value proposition should.
Annual Recurring Revenue (ARR)
Your recurring revenue at annual scale — the same book as MRR, in the unit boards and investors think in.
Average Sales Price (ASP)
The typical New MRR a new customer brings — and the clearest read on whether you're moving up-market.
Discount Value
The up-front discount used to win new customers — acquisition spend hiding inside your pricing.
MRR Growth Rate
The percentage change in recurring revenue period over period — the number investors instinctively annualise.
Net New Revenue
The bottom line of your MRR movements — how much recurring revenue you actually added or lost this period.
MRR Discount Amount
The revenue you chose not to collect — the mirror image of MRR, and just as worth measuring.
Monthly Recurring Revenue (MRR)
The predictable subscription revenue that repeats every month — the number every other SaaS metric is built on.
Activation rate
Why the percentage of users who reach value matters more than total signups.
Dispute Rate
Chargebacks as a share of billings — one of the few metrics with a hard operational ceiling.
Gross Revenue Retention (GRR)
Your revenue floor — how much of the existing base survives churn and contraction, before any expansion.
Customer Churn Rate
The difference between logo churn and revenue churn — and why the headline number rarely tells the full story.
Refund Rate
The share of billed revenue you hand back — a direct measure of post-sale friction.
MRR Movements
The five forces behind every change in recurring revenue — and how they bridge starting MRR to ending MRR.
Customer Lifetime Value (cLTV)
The true value of a customer relationship and why most SaaS teams overstate it.
Reactivation MRR
The recurring revenue from customers who cancelled and came back — a good sign, but never the main growth engine.
Contraction Velocity
How quickly new customers shrink or leave — the early-warning mirror of expansion velocity.
Churn MRR
The recurring revenue you lose when customers cancel outright — the single biggest threat to growth.
Net Revenue Retention (NRR)
The single number investors care most about — whether your existing customers grow on their own, even before a single new logo.
New MRR
The recurring revenue from first-time customers — the cleanest read on whether acquisition is working.
Expansion Velocity
How quickly new customers expand — fast up-tiering is product-market fit you can see in weeks.
Contraction MRR
The revenue you lose when customers downgrade instead of leaving — and why it is an early warning for churn.
Growth Volatility
How much your growth rate bounces around — predictability, which markets reward on its own.
Expansion MRR
Measure upsells, cross-sells and add-ons in a way that ties directly to net dollar retention.
Growth Acceleration
The change in the growth rate itself — where a stalling business shows its hand first.
Months to Double
At the current rate, how long until MRR doubles — momentum as a timeline anyone can grasp.
Conversion Rate
Why signup-to-paid conversion is meaningless without cohort context — and the definition we recommend.
Smoothed MRR Growth Rate (L3M)
Growth with the noise removed — a three-month average that shows the trend, not the wobble.
Annualized Growth Rate
Your latest monthly growth compounded across a year — the pace investors actually benchmark.
Zombie Revenue
The most fragile MRR you have — real today, attached to customers who have stopped using the product.
Contraction Before Cancellation
The death spiral in numbers — accounts that trim their plan, then cancel entirely soon after.
Logo vs Dollar Churn Gap
In one number, whether the customers you lose are bigger or smaller than your average.
Churn Acceleration
The second derivative of churn — whether your churn rate is quietly speeding up before the level alarms anyone.
Paying Dormant Accounts
Billed today, gone tomorrow — customers who still pay but have quietly stopped using the product.
Single-Active-User Account Count
How many of your accounts are a single point of failure — the backlog for multi-user conversion.
Single-Active-User MRR Share
The slice of revenue riding on one person — MRR that is a single departure away from churning.
Average Active Users Per Account
The stickiness metric hiding in plain sight — why multiplayer accounts retain and expand far better.