§ Tool · Billing leakage
Billing leakage Calculator.
Track the three drops — recorded to billed, billed to collected — and put a number on what's quietly leaving the firm.
- →See realisation and collection at a glance
- →Quantify the cost of late billing and write-offs
- →Make the case for tightening pre-bill and collection routines
Inputs
Result
Realisation
Hours billed ÷ hours recorded.
86.7%
Collection
Revenue collected ÷ revenue invoiced.
92.6%
Total leakage
Between recorded at rate and actually collected.
£64,000
Leakage as %
19.8%
Benchmark: well-run small firms hit ~92% realisation and ~96% collection — about an 88% combined. Below 80% combined is usually a pre-bill review and collection-cadence problem, not a client-quality one.
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