Your team is fully deployed.So why is your billability flat?
Most service firms lose lose 15 to 25% of earned revenue to five fixable gaps between work completed and cash collected. This guide identifies each one, shows you the fix sequence, and delivers measurable results within 90 days.
68.9%
Industry avg billable utilization. Target: 75%
8%
Increase in billable utilization at high performers
117%
EBITDA increase at high-performing PS firms vs rest
Source: SPI Research Professional Services Maturity Benchmark, published in partnership with Kantata (2025)
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The Billability Gap Guide
30 Pages. 5 Root Causes. 90-Day Roadmap.
Contents
What is inside the guide
Six chapters built from the financial patterns we see across service firms every day. Each one is designed to produce a specific, actionable output, not just insight.
What makes this different
SPI-sourced data
Transparent maths
Honest trade-offs
90-day results.
01
The utilization trap explained
What you're tracking vs what you're billing
02
The A-B-C-D revenue waterfall
Where revenue leaks at each of four stages
03
The five root causes
What's draining each stage, with warning signs
04
How to fix each one
Practical steps with the trade-offs spelled out
05
The compounding fix
Why fixing all five outperforms fixing one
06
The 90-day roadmap
Six-phase plan plus an 8-question diagnostic
Industry Data
The numbers behind the gap.
From the SPI Research Professional Services Maturity Benchmark, the most comprehensive annual study of service firm performance, covering 509 firms globally.
What Readers Say
From firms that recognised the problem early
Not testimonials about Numetix, but what the guide helped uncover inside their firms.
We scored 14 out of 32 on the assessment. Four root causes active at once. We thought we had a revenue problem. We had a scope management problem. Fixed it. The revenue followed immediately.
Sarah R.
Founder, 12-person Marketing Agency
The A-B-C-D waterfall on page 4 was the clearest explanation I have seen of where our billing was breaking down. We had three separate leaks. Closing two of them improved our DSO by 18 days in one month.
Michael K.
Managing Partner, Law Firm
The section on not charging clients for internal inefficiencies was exactly the reframe we needed. It refocused us on fixing our processes rather than papering over them with scope conversations.
Dr. Diana M.
Owner, Healthcare Practice
Your financials should tell you where the money went
- Know where to start within minutes
- No setup. No tools. Just a PDF
- Start with your current numbers
- Works even if your books are messy