Billing Write-Down Rate
Standard definition, mathematical formula, practical agency calculation walkthrough, and 2026 benchmarks.
Core Definition
Billing Write-Down Rate is the percentage of recorded billable hours that management deliberately forgives, discounts, or removes before issuing the final client invoice.
In-Depth Practitioner Guide
Write-downs occur when project budgets overrun due to junior engineer learning curves, defective code refactoring, or client disputes. If an agency logs 500 billable hours but writes down 50 hours to preserve the client relationship, the Write-Down Rate is 10%. High write-down rates indicate poor scoping discipline and inaccurate task estimation.
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Frequently Asked Questions
The percentage of recorded billable hours that management deliberately forgives, discounts, or removes before issuing the final client invoice.
Write-downs occur when project budgets overrun due to junior engineer learning curves, defective code refactoring, or client disputes. If an agency logs 500 billable hours but writes down 50 hours to preserve the client relationship, the Write-Down Rate is 10%. High write-down rates indicate poor scoping discipline and inaccurate task estimation.
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