The Churn Tax

The Churn Tax is the total economic impact of revenue churn, combining direct revenue loss, forfeited expansion revenue on churned accounts, and the sales and marketing cost of acquiring replacement customers.

Most leadership teams report churn as a single number: the ARR that didn't renew. That number captures roughly 40-50% of the actual cost. The remaining layers. forfeited expansion and replacement cost. compound silently inside the sales budget and the growth plan.

At a $300M ARR company running 9% gross revenue churn, the reported loss is $27M. The total annual Churn Tax is $36.1M to $38.3M. Over three years, that compounds to $118M or more as the revenue base grows.

The Churn Tax creates a specific problem for PE-backed SaaS companies: it compresses exit multiples. A company with NRR below 100% trades at 8x revenue or lower. The same company with NRR above 105% commands 10x or higher. The gap in enterprise value isn't incremental. It's substantial.

We built the Churn Tax framework to give CEOs, CFOs, CROs and PE operating partners a financial model that quantifies the full cost of inaction and sizes the return on CS investment.

Related terms: Net Revenue Retention, Gross Revenue Retention, Revenue Leakage, Expansion Revenue

Go deeper: See the math at your scale | Our diagnostic approach