ChurnCost.com

SaaS Churn Cost Calculator - Segment-Aware Benchmarks for B2B in 2026

Select your segment and vertical. Benchmarks auto-populate. Override any assumption. Get a calibrated three-layer cost model against the 2026 data for your exact cohort.

SaaS Scenario Calculator - Segment and Vertical Calibrated

Segment benchmark churn

4.0%/month

Median NRR

97%

Typical CAC

$4K

$
%
$

Total annual churn cost

$462K

vs. benchmark

At benchmark

Direct Revenue

$20K

CAC Waste

$192K

LTV Destroyed

$250K

Why SaaS Churn Compounds Differently

Unlike e-commerce where a lost customer might return next quarter, SaaS churn is structurally permanent. Once a customer leaves, they are reintegrating with a competitor, rebuilding their workflows, and unlikely to return within 12-18 months. The switching cost works against you post-churn just as it worked for you pre-churn.

Additionally, SaaS businesses typically have high CAC payback periods (12-24 months). This means the average churned customer never became profitable. You acquired them at a loss and then lost them before breaking even.

Avg. CAC payback period

18 months

B2B SaaS median, Bain 2025

Churned before payback

30-40%

At 3.5% monthly churn rate

Lost before profitable

$3-8K

Per churned SMB customer

Frequently Asked Questions

What is the average SaaS churn rate?+
The average B2B SaaS monthly churn is 3.5% across all segments. Enterprise averages under 0.5% monthly, mid-market 1-2%, SMB 4-5%. Fintech SaaS runs 0.8-1.5% monthly; edtech runs 6-9% monthly.
What is a good SaaS churn rate by segment?+
Enterprise: under 0.5% monthly is excellent. Mid-market: 1-2% is healthy. SMB: 3-5% acceptable. Anything above these thresholds indicates a structural problem that compounds over time.
How much does a 1% improvement in SaaS churn save?+
A 1% monthly churn reduction on $500K ARR saves approximately $60K in direct revenue per year, plus $40-80K in avoided CAC waste. Over 24 months with compounding, total impact is typically $150K-$250K.
What is the difference between SMB and enterprise SaaS churn?+
Enterprise SaaS churn is lower (under 0.5% monthly) because of longer contracts, higher switching costs, deeper integrations, and dedicated success management. SMB is higher (3-5%) due to shorter contracts, lower inertia, and price sensitivity.
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