Net negative churn happens when the extra revenue you earn from existing customers (upgrades, add-ons, extra seats, price rises) is bigger than the revenue you lose from cancellations and downgrades over the same period. Your net revenue churn rate goes below zero and your net revenue retention goes above 100%. It means your revenue grows even if you sign no new customers.
Key takeaways
- Net MRR churn = (churned MRR + contraction MRR − expansion MRR) ÷ starting MRR. Below zero is net negative churn.
- Net negative churn is the same thing as NRR above 100%.
- In ChartMogul's 2023 data, only 2.7% of businesses charging under $10 a month had NRR above 100%, against 41.1% of those charging over $500.
- You get there with two levers at once: keep gross churn low and give customers something worth upgrading to.
I opened Chapter 9 of The Subscription Playbook with three words.
Net. Negative. Churn.
If you can achieve what those three words give you, your business can build a moat the size of the Atlantic Ocean.
Take SendGrid, the email platform I wrote about in that chapter. Its net dollar retention was 112 percent in 2015, 111 percent in 2016 and 117 percent in 2017. Customers left, as they always do. But the ones who stayed spent so much more that the losses didn't matter.
Good businesses aim to lower churn. Great businesses shoot for net negative churn.
What is net negative churn?
Net negative churn happens when the revenue you gain from existing customers is bigger than the revenue you lose from them.
The gains are expansion revenue: upgrades, add-ons, extra seats, more usage and price rises. The losses are cancellations (churn) and downgrades (contraction).
When gains beat losses, your net revenue churn rate drops below zero. Your revenue grows even if you don't sign a single new customer that month.
Net MRR churn rate = (Churned MRR + Contraction MRR − Expansion MRR) ÷ Starting MRR × 100
A negative answer means net negative churn. The same idea, flipped, is net revenue retention:
NRR = 100% − Net MRR churn rate
So net MRR churn of −2.5 percent is the same as NRR of 102.5 percent. Same business, two ways of saying it.
The book's example, corrected
A fix to my Chapter 9 example
In the book I gave a quick formula and labeled it the net dollar retention rate. It actually calculates net revenue churn, the mirror image. I also made a slip in the example: when 30 customers upgraded from $20 to $50, I counted the full $50 as expansion. Only the extra $30 is new revenue. The lesson in the chapter still stands. Here's the arithmetic done properly.
1,000 customers at $20 a month, one month
Starting MRR: 1,000 × $20 = $20,000
- 20 customers cancel. Churned MRR = 20 × $20 = $400
- 30 customers upgrade from $20 to $50. Expansion MRR = 30 × $30 = $900
- No downgrades this month.
Net MRR churn = ($400 + $0 − $900) ÷ $20,000 = −2.5%
NRR for the month = 100% − (−2.5%) = 102.5%
MRR from these customers at month end: $20,000 − $400 + $900 = $20,500
That's net negative churn. And it's a monthly figure, so if it held all year it would compound to about 134 percent annual NRR. In practice it rarely holds that steadily, which is why I'd judge it on a rolling 12 months.
Check your own numbers with the NRR and GRR calculator.
NRR and GRR CalculatorNet and gross revenue retention.Open the free tool →How common is net negative churn?
Less common than the blog posts suggest, and it depends heavily on price point.
| Source and year | Segment | Share with NRR above 100% |
|---|---|---|
| ChartMogul, 2023 report | Businesses charging under $10 a month (ARPA) | 2.7% |
| ChartMogul, 2023 report | Businesses charging over $500 a month (ARPA) | 41.1% |
| ChartMogul, 2023 report | Businesses with $15M–$30M ARR | 35.1% |
| SaaS Capital, 2025 | Private B2B SaaS over $1M ARR | median NRR 101%, so roughly half |
The prize is worth chasing. ChartMogul's 2023 report found businesses with NRR above 100 percent grew 43.6 percent a year on average, against 13.1 percent for those under 60 percent.
At the extreme end, Linear reported 177 percent net revenue retention in 2026 alongside more than 40,000 paying customers. That's a company-reported figure, but it shows what's possible when a product spreads through teams.
Are you in net negative churn?
Enter your churn, downgrades and upgrades. The free calculator tells you in seconds, and shows your NRR and GRR.
Why net negative churn is so valuable
Imagine two businesses with identical new sales. One has 3 percent net monthly churn. The other has −1 percent.
The first has to replace 3 percent of its revenue every month before it grows at all. The second gets a 1 percent head start every month before a single new sale.
Over a few years, the gap becomes enormous. That's why investors pay up for it, and why I called it a moat. Competitors can copy your product. It's much harder to copy a customer base that keeps spending more with you. If you're thinking about selling, see how retention feeds SaaS valuation multiples.
How do you create net negative churn?
In Chapter 9 I gave four tips. They still work.
- Understand the formula. You can't improve what you don't measure. Calculate net MRR churn every month.
- Upsell and cross-sell. "Would you like fries with that?" Tell customers about the higher tier and the related service. Spotify shows free users the Premium features they just tried to use.
- Expand your resources. Offer more of what they already use. Dropbox sells more storage, and (cleverly) lists it as 2,000 GB rather than 2 TB because it sounds bigger.
- Use your customer data. Groove found users who churned spent about 35 seconds a session, while those who stayed spent more than three minutes. It reached out to the at-risk group and cut churn by 71 percent.
Two more that matter in 2026. Price on a value metric that grows with the customer, so revenue rises as they succeed (usage-based pricing is the classic route). And raise prices on a schedule, with notice, the way Xero and Spotify now do.
Common mistakes
- Confusing it with negative growth. Net negative churn is good news. Negative net new MRR is bad news. Different numbers.
- Celebrating one month. One big upgrade can produce a negative month. Look at the 12-month trend.
- Ignoring gross churn. You can reach net negative churn with a leaky base if a few customers expand a lot. Always check gross revenue retention too.
- Counting new customers' upgrades. Only customers who were there at the start of the period count.
Can a gym or a cafe get there?
It's tough with one price and consumer customers. But it's not impossible if you build room to grow.
A gym with an off-peak membership, a full membership, and personal training packs on top has three steps for members to climb. A cafe coffee club with a "coffee plus pastry" tier and an office pack for workplaces has the same. A cleaning business that charges per room or per visit grows with each client automatically.
If you have one price and no add-ons, net negative churn is close to impossible. Focus on keeping gross churn low, and see the churn rate guide for how to measure it.
What to do next
- Calculate last month's net MRR churn and your rolling 12-month figure.
- List every way an existing customer can pay you more. If the list is empty, build one tier or add-on this quarter.
- Test a price rise with the price increase simulator before you announce it.
- Read the full Chapter 9 playbook on reducing churn, and track your expansion revenue separately from new sales.
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Claim the free hardcover Get the ebookFrequently asked questions
Can churn rate be negative?
Customer churn can't. You can't lose fewer than zero customers. Revenue churn can, once you net off expansion. If customers who stay add more revenue than leavers take away, net revenue churn is negative. That's why you should always say which churn you mean: customer (logo) churn, gross revenue churn or net revenue churn.
Is net negative churn realistic for a small business?
It's harder for consumer subscriptions with one price, but not impossible. You need somewhere for customers to grow: a higher tier, add-ons, more locations, more users or usage-based billing. A bookkeeping firm adding payroll, or a cleaning business adding extra rooms, can get there. A single-price coffee club almost never will, so it should focus on keeping gross churn low.
How long does it take to reach net negative churn?
There's no fixed timeline. It depends on how quickly customers grow into higher tiers and how low your gross churn is. Measure monthly, but judge it on a rolling 12-month view, because one big upgrade or one big cancellation can swing a single month. If your 12-month trend is moving towards zero, you're on the right track.
Do price increases create negative churn?
They can. A price rise on existing customers counts as expansion revenue, so it lowers net revenue churn. But it can also raise cancellations. Model both effects before you move. The free price increase simulator shows the break-even churn for a price rise, so you know how many cancellations the new price can absorb.
What's the difference between negative churn and negative net MRR growth?
They're opposites, and people mix them up. Net negative churn is good: existing customers are growing revenue. Negative net new MRR is bad: your total MRR shrank this month because churn and downgrades beat new sales plus expansion. You can have net negative churn and still grow slowly if you add few new customers.
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Robert Coorey, MBA
Robert is the author of The Subscription Playbook and Feed a Starving Crowd and a Director at BPAG Accountants in Sydney. More about Robert.
Sources
- ChartMogul, SaaS Retention Report (Nov 2023)
- SaaS Capital, 2025 B2B SaaS Retention Benchmarks (Sept 2025)
- ARR Club, Linear hit 40k paying customers with a 177% net revenue retention rate (2026)
- The Subscription Playbook, Chapter 9 (Robert Coorey, 2022)
Facts and prices checked 27 October 2026. Spotted something out of date? Tell us.