Gross Churn
Updated July 21, 2026
Total revenue or customers lost without accounting for expansion or recovery.
Also known as: Gross revenue churn, Gross MRR churn, Gross dollar churn, Gross logo churn, Gross customer churn
Gross churn measures the total revenue or number of customers a subscription business loses in a period from cancellations and downgrades, with no credit for expansion, upsell, cross-sell, or reactivation from the customers who stay. It is the unadjusted, worst-case view of retention: only the losses are counted. Because it ignores every offsetting gain, gross churn for a given period is always equal to or greater than net churn, and unlike net churn it cannot fall below zero. That floor is exactly what makes it useful. A company with strong expansion revenue can post low or even negative net churn while quietly bleeding accounts, and gross churn is the figure that exposes the leak.
The metric is not a proprietary framework. It is standard SaaS and subscription-finance vocabulary, a specific application of the older "churn rate" concept that became a headline number in subscription-heavy industries such as telecom before recurring-revenue software adopted it. "Gross" simply marks the pre-expansion-offset version of the calculation, distinguishing it from "net" churn once finance teams began factoring upsell and expansion into their retention math.
Gross churn appears in two common flavors that answer different questions. Gross revenue churn, sometimes written gross MRR churn or gross dollar churn, tracks lost recurring revenue. Gross logo churn tracks the count of customers lost. Finance and investor audiences tend to treat gross churn as the more honest read on retention health, precisely because it cannot be masked by a handful of large expanding accounts.
How gross churn is calculated
Gross churn is a ratio of losses to a starting base, and it comes in two forms depending on what you are counting. Gross revenue churn is the MRR lost to cancellations plus the MRR lost to downgrades or contraction, divided by the MRR at the start of the period. Gross logo churn is the number of customers lost in the period divided by the number of customers at the start of the period. The defining rule is what stays out of the numerator: expansion, upsell, cross-sell, and reactivation revenue are excluded entirely. Gross churn only ever moves in one direction, counting losses and nothing else.
Because the numerator holds only losses, the metric is bounded at zero and above. There is no arithmetic path to a negative gross churn rate, which is why it is often described as the floor of retention analysis. Teams usually report it on both a monthly and an annualized basis, and both contraction (downgrades) and outright cancellation typically feed the revenue-churn numerator, though granular reports sometimes break the two apart as separate line items.
Gross churn vs. net churn
The two metrics start from the same losses but end in different places. Net churn subtracts expansion and reactivation revenue from the losses in the numerator; gross churn ignores those gains completely. The practical consequence is that gross churn is always greater than or equal to net churn for the same period, and only net churn can go negative, the state where expansion from existing customers more than replaces everything lost. Gross churn cannot.
That gap between the two numbers is diagnostic. A company can show low or negative net churn, which reads as healthy growth, while its gross churn quietly signals that customers are leaving faster than anyone would like, with the shortfall papered over by a few large accounts scaling up. Reading them together is the point: net churn tells you whether the existing base is growing in aggregate, and gross churn tells you how much you are losing before expansion rescues the total. For that reason investors and finance teams often treat gross churn as the more candid retention figure.
Revenue churn vs. logo churn, and why they diverge
Gross churn on a revenue basis and gross churn on a customer basis answer different questions and can move in opposite directions. Gross revenue churn weights each departure by the dollars it carries, so losing one large enterprise account can spike revenue churn while barely moving the logo count. Gross logo churn weights every customer equally, so losing many small accounts can spike logo churn while revenue churn stays modest.
The divergence is itself informative. Logo churn far above revenue churn suggests the small end of the base is unstable while larger accounts hold. Revenue churn far above logo churn points to concentration risk, where the health of the book depends on a few big customers staying. Teams that report only one of the two lose that texture, which is why most SaaS-metrics literature treats them as a pair rather than interchangeable numbers.
How competitive-intelligence teams use gross churn
Gross churn is an internal financial metric, not something a rival prints on its pricing page, so it is rarely observable through routine competitor monitoring. It matters for competitive-intelligence work in two indirect ways. First, as a benchmark: teams compare their own gross churn against published SaaS retention ranges to judge whether their retention is competitive, and against their own trend line to catch drift. Second, as an inference target. A competitor's exact gross churn stays private, but secondary signals can hint at the direction it is moving.
This is where continuous monitoring earns its place. A shrinking customer-logo wall, thinning case-study pages, declining review volume or souring sentiment on G2 and Capterra, retention-focused hiring, or, for public companies, retention commentary in earnings calls and filings can all suggest churn pressure that the private number would confirm. Any concrete competitor gross-churn figure a CI team actually sees almost always comes from a leaked investor deck, funding-round coverage, or an executive's public remarks rather than from ordinary site tracking.
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Frequently Asked Questions
What is the difference between gross churn and net churn?
Gross churn counts only revenue or customers lost to cancellations and downgrades. Net churn takes those same losses and subtracts expansion and reactivation revenue from remaining customers. Because net churn nets out gains, it is always less than or equal to gross churn and can even go negative when expansion outpaces losses. Gross churn cannot fall below zero, which makes it the more unmasked view of retention.
How do you calculate gross revenue churn?
Add the recurring revenue lost to cancellations and the revenue lost to downgrades or contraction during the period, then divide that total by the recurring revenue at the start of the period. Expansion, upsell, and reactivation revenue are deliberately left out. The customer-based version, gross logo churn, instead divides the number of customers lost by the customer count at the start of the period.
Can gross churn be negative?
No. Gross churn counts only losses, so its numerator can never be less than zero, and the rate is bounded at zero or above. Negative churn is a state only net churn can reach, and it happens when expansion and reactivation revenue from existing customers more than replaces everything lost in the period. If a metric reads below zero, it is net churn, not gross churn.
Is gross churn or net churn more important for SaaS?
Neither replaces the other; they answer different questions. Net churn shows whether the existing customer base is growing in aggregate, since it credits expansion. Gross churn shows how much is being lost before expansion masks it. Finance and investor audiences often lean on gross churn as the more honest retention read, because strong expansion from a few large accounts can hide a serious cancellation problem in the net figure.
What is the difference between gross revenue churn and gross logo churn?
Gross revenue churn measures lost recurring revenue, weighting each departure by its dollar value. Gross logo churn measures the count of customers lost, weighting every account equally. The two can diverge sharply. Losing one large account spikes revenue churn but barely moves logo churn, while losing many small accounts spikes logo churn but leaves revenue churn modest. Reporting both reveals concentration risk and where in the base instability sits.
Related terms
Revenue lost minus expansion revenue gained. Net negative churn means growth from existing customers exceeds losses.
Revenue Churn (MRR Churn)Percentage of recurring revenue lost from cancellations and downgrades.
Net Revenue Retention (NRR / NDR)Revenue from existing customers at period end divided by their starting revenue, after expansion, contraction, and churn. Above 100% = customers spend more over time.
Customer Churn Rate (Logo Churn)Percentage of customers who cancel or don't renew during a period, regardless of revenue impact.
Expansion Revenue (Expansion MRR)Additional revenue from existing customers through upsells, add-ons, or increased usage.
Competitive ChurnCustomer attrition specifically caused by a switch to a competitor's product, as opposed to budget cuts or dissatisfaction.
Customer Lifetime Value (CLV / LTV)Total revenue a customer is expected to generate over their entire relationship. Typically ARPU / churn rate.
Involuntary ChurnRevenue lost due to failed payments or billing issues rather than deliberate cancellation.