Revenue Leakage Glossary
Key terms and definitions for revenue leakage detection, billing operations, and SaaS finance.
Revenue Leakage
Revenue leakage is the unintentional loss of earned or expected revenue due to billing errors, pricing misconfigurations, failed payments, contract non-compliance, or operational process gaps.
Involuntary Churn
Involuntary churn is the loss of customers due to payment processing failures rather than a deliberate decision to cancel. It accounts for 20-40% of total churn in subscription businesses.
Dunning
Dunning is the systematic process of communicating with customers about failed payments and attempting to recover the revenue through automated retries, payment method updates, and escalation sequences.
Revenue Assurance
Revenue assurance (RA) is the practice of ensuring that all revenue earned by an organization is accurately captured, billed, collected, and reported — preventing revenue leakage throughout the revenue lifecycle.
Billing Reconciliation
Billing reconciliation is the process of comparing and verifying that the amounts billed to customers match the contracted terms, the services delivered, and the payments actually collected.
Pricing Drift
Pricing drift is the gradual divergence between a company's intended pricing and the actual prices charged to customers, caused by manual errors, system misconfigurations, or accumulated exceptions.
Net Revenue Retention (NRR)
Net Revenue Retention (NRR) measures the percentage of recurring revenue retained from existing customers over a period, accounting for upgrades, downgrades, and churn — but excluding new customer revenue.
Failed Payment Recovery
Failed payment recovery is the process of detecting, retrying, and collecting subscription payments that initially fail due to expired cards, insufficient funds, bank declines, or processing errors.
ARR Leakage
ARR leakage is the difference between a SaaS company's expected Annual Recurring Revenue (based on active subscriptions and contracted rates) and the revenue actually collected, caused by billing errors, payment failures, and pricing gaps.
Revenue Operations (RevOps)
Revenue Operations (RevOps) is the strategic function that aligns sales, marketing, and customer success operations to drive predictable revenue growth through process optimization, data integration, and technology alignment.
Subscription Billing Errors
Subscription billing errors are inaccuracies in the recurring billing process that result in customers being charged incorrectly — either too much (compliance risk, refund liability) or too little (revenue leakage).
Churn Rate
Churn rate is the percentage of customers (customer churn) or revenue (revenue churn) lost during a given period, typically measured monthly or annually.