Negative Churn: What It Is, How to Calculate It, and How to Achieve It
I talk to Churn.io customers about retention every week, across dozens of subscription businesses. One pattern keeps repeating itself. The teams that...
I talk to Churn.io customers about retention every week, across dozens of subscription businesses. One pattern keeps repeating itself. The teams that keep cutting churn quarter after quarter have built pricing models where customers naturally spend more over time.
Controlling churn sets your floor. Negative churn means the floor rises on its own, every month, without a single new customer added. Here is what that looks like in the math, and how to get there.
Key takeaways
- Negative churn happens when expansion revenue from existing customers is larger than revenue lost from churn and downgrades.
- Net revenue retention above 100% means negative net revenue churn when you use the same customer base and time period.
- Seat-based, usage-based, and module-based pricing make negative churn more likely because they give customers a clear path to spend more.
- 35.1% of SaaS businesses in the $15M–$30M ARR range have net revenue retention above 100%.
- Customer churn and revenue churn can move in different directions, so you need to track both.
What is negative churn?
Negative churn means your existing customers add more recurring revenue than you lose from cancellations and downgrades in the same period. For example, if you lose $1,000 in MRR but gain $1,500 from upgrades, seats, or usage growth, your net revenue churn rate is negative.
MRR is short for monthly recurring revenue churn.
Customer churn measures how many customers cancel. Gross revenue churn measures how much recurring revenue you lose from churn and downgrades before expansion. Negative churn is a revenue metric, and it usually refers to net revenue churn.
This matters because a business can lose customers and still grow revenue from the customers who stay. That only works when the pricing model lets retained customers pay more over time.
How to calculate net revenue churn
Two formulas matter for negative churn: net revenue churn rate and net revenue retention, or NRR. When you use the same customer base and time period, they show the same revenue movement from opposite sides.
Here’s the formula for NRR:
(Churned MRR + Contraction MRR - Expansion MRR) / Starting MRR
Some systems also subtract reactivation MRR from the numerator, so keep your formula consistent with your reporting tool.
When expansion MRR is larger than churned MRR plus contraction MRR, the result is negative. That is negative churn.
(Starting MRR + Expansion MRR - Contraction MRR - Churned MRR) / Starting MRR
NRR includes expansion and can go above 100%, while gross revenue retention excludes expansion and tops out at 100%.
Worked example at $5M ARR
Assume a subscription business has $416,700 in MRR, which is about $5M in ARR:
| Line | Amount |
|---|---|
| Starting MRR | $416,700 |
| Churned MRR | $12,500 |
| Expansion MRR (upgrades, seats, usage) | $18,750 |
| Net MRR change from existing base | +$6,250 |
| Net revenue churn rate | -1.5% |
| NRR | 101.5% |
In this example, expansion is $6,250 higher than churned MRR. That creates a -1.5% net revenue churn rate.
At -1.5% monthly net revenue churn, the existing customer base grows by about 18% on a simple annualized basis. If you compound that monthly, it grows by about 19.6%.
David Skok’s SaaS cohort model shows why this matters. In his example, a business with 3% monthly negative churn reaches $450,000 in revenue after 40 months, while a business with 3% positive churn reaches $140,000 after the same period.
The pricing models that make negative churn possible
Negative churn is mainly a pricing design issue. Customer success matters, but customer success can’t create expansion if your pricing model gives customers no reason to spend more.
If your pricing has no expansion path, your net revenue churn can improve, but it will likely stop near zero. To go below zero, customers need a natural way to grow their spend:
| Pricing model | Expansion mechanism | Expansion ceiling |
|---|---|---|
| Seat-based | New users added to the account | Bounded by the customer's headcount |
| Usage-based | More usage automatically generates more revenue | High ceiling, requires customer's own growth |
| Module-based | Feature tier upgrades or add-on purchases | Bounded by the number of tiers |
1. Seat-based pricing
Seat-based pricing grows when the customer adds users. If a team grows from 10 users to 20 users, the account pays more without needing a full new sale.
Paddle uses Help Scout as an example of this model. According to Paddle, Help Scout’s average revenue per customer grew to 143% over 23 billing cycles, helped by its per-seat pricing model.
2. Usage-based pricing
Usage-based pricing grows when the customer uses more of the product. This model works well when the product is tied to a customer’s own growth, such as:
- API calls
- Storage
- Messages
- Transactions
- Data volume
Twilio is a clear example. In its S-1, Twilio reported Dollar-Based Net Expansion Rates of 170%, 153%, and 155% for 2013, 2014, and 2015. Twilio also said its expansion rate increased when customers used more products, expanded use to new applications, or adopted new products.
3. Module-based pricing
Module-based pricing grows when customers move to a higher tier or buy add-ons. This can work well when each upgrade solves a real customer need.
The limit is that module-based expansion happens in steps. A customer upgrades, then waits until the next tier or add-on makes sense. Usage-based expansion can grow more smoothly because revenue can rise as usage rises.
4. Flat-rate pricing
Flat-rate pricing is simple, which can be useful early on. But a single flat price has no built-in expansion path.
To reach negative churn with flat-rate pricing, you usually need to add one of these paths:
- Add-ons
- Usage limits
- Seat tiers
- Higher plans
- Price increases
- Enterprise packaging
- A sales-led expansion motion
Businesses achieve negative churn by building an expansion loop into the pricing model.
What NRR benchmarks look like at $1M, $5M, and $20M ARR
Negative churn gets more common as SaaS companies grow. That makes sense because bigger companies often have a clearer ideal customer profile and mature pricing.
ChartMogul found that businesses in the $1M–$3M ARR range have a top-quartile net retention rate of 94%, while businesses in the $3M–$15M ARR range have a top-quartile rate of 99%. At $15M–$30M ARR, top-quartile net retention rises above 105%.
Use this as a practical stage-based frame:
| ARR stage | Better benchmark framing | What it means |
|---|---|---|
| Around $1M ARR | 85–100% NRR can still be normal | Focus on product-market fit, ICP quality, and gross retention |
| $1M–$5M ARR | 95–105% NRR is a strong early signal | Breakeven or modest negative churn is a meaningful win |
| $5M–$20M ARR | 100–110%+ NRR is strong, depending on customer segment | Expansion should start becoming repeatable |
| $15M–$30M ARR | 105%+ is top-quartile | Negative churn becomes more common at scale |
| Mid-market / enterprise B2B SaaS | 115–125% can be best-in-class | This is more about customer segment and ARPA than ARR alone |
ChartMogul also reports that best-in-class NRR for B2B SaaS companies selling to mid-market and enterprise customers is usually in the 115%–125% range.
At $1M ARR, 100%–105% NRR is a strong sign, especially if the expansion comes from repeatable pricing instead of one-off upsells.
At $20M ARR, 100% NRR may be acceptable for an SMB-heavy business. For a mid-market or enterprise SaaS company with expansion pricing, 100% NRR is usually a warning sign.
Now you’ll want to ask yourself whether your pricing model gives good customers a reason to spend more as they get more value?
Why customer churn and revenue churn can move in different directions
Customer churn and revenue churn measure different things. Customer churn counts lost customers. Revenue churn counts lost revenue.
Here’s a great example from David Skok. Say a SaaS business has:
- 100 customers:
- 50 small accounts at $100 per month
- 50 larger accounts at $1,000 per month
- Total MRR is $55,000.
If 10 customers cancel, the customer churn rate is 10%. But if 9 of those customers are small accounts and 1 is a large account, the business loses only $1,900 in MRR, or 3.4% revenue churn.
| Metric | Calculation | Result |
|---|---|---|
| Customer churn rate | 10 cancellations / 100 customers | 10% |
| Revenue churn rate | $1,900 lost / $55,000 total MRR | 3.4% |
That business lost 10% of its customers but only 3.4% of its revenue. The numbers diverged because most lost accounts were low-value accounts.
Now add expansion. If the larger accounts add $3,000 in expansion MRR from upgrades or seat growth, net revenue churn becomes negative even though customer churn is still 10%.
This is why cohort analysis should track customer count and revenue. A cohort may look weak by customer count but strong by revenue. The reverse can also happen. Customer retention may look healthy while your best accounts quietly downgrade or churn.
Revenue churn governs NRR. Customer churn shows product health and future expansion capacity. Track both.
Frequently asked questions
What is a good churn rate for SaaS?
A good churn rate depends on ARR, customer segment, and pricing model.
How do you achieve net negative churn?
You achieve net negative churn by reducing gross churn and adding a pricing model that lets retained customers spend more over time. Seat-based, usage-based, and module-based pricing are the most common paths.
What is the difference between gross churn and net churn?
Gross churn counts revenue lost from cancellations and downgrades before expansion. Net churn subtracts expansion revenue from those losses.
Can customer churn rate be negative?
No. Customer churn rate can’t be negative because customer count churn tracks lost customers. Revenue churn can be negative because retained customers can spend more.
Run this with Churn.io
Negative churn starts with controlling the revenue that leaks before expansion has a chance to compound.
Churn.io helps subscription teams map cancel reasons to the right retention offer, retry failed payments with account updater logic, and see which pricing tiers their best customers are upgrading into.
See how it works or book a 20-minute walkthrough.