# Billing Lag Calculator — Measure the Cost of Billing Delays | Enso

> Calculate how billing lag traps working capital and hurts cash flow. Enter your contracts signed, ACV, billing lag, manual invoice error rate, and DSO to see the total business impact of invoice delays.


While CFOs watch Days Sales Outstanding (DSO) closely, they often miss a more insidious metric: **Billing Lag**. If your sales team closes a deal on the 10th, but finance doesn't send the first invoice until the 30th, you have a 20-day billing lag. That's nearly three weeks where the cash collection clock hasn't even started.

The calculator above models this working capital gap. Enter your contract volume, Average Contract Value (ACV), days of lag, invoice error rates, and DSO to calculate the cash locked up in your invoicing cycle and the operational savings from automation.

---

**What this is for:** Finance leaders, RevOps, and CFOs at growing B2B SaaS and enterprise companies looking to optimize cash conversion cycles and automate NetSuite-integrated billing workflows.

For the full breakdown of why billing lag is costlier than DSO alone and how to fix it, read [Billing Lag: Is Invoice Delay Costing You More Than You Think?](/blog/billing-lag-calculator-business-impact/).