TL;DR (60 seconds):
Your insurance brokerage is probably losing more money to unbilled work than to any single operational expense you track. According to , insurance services firms lose approximately £222.1 billion annually due to lost billable hours. For most brokerag...
Your insurance brokerage is probably losing more money to unbilled work than to any single operational expense you track. According to Insurtech Insights research, insurance services firms lose approximately £222.1 billion annually due to lost billable hours. For most brokerages, this translates to 15-25% of potential revenue disappearing into unbilled work-in-progress and extended lock-up periods.
The problem is invisible on your P&L. Unlike rent or salaries, unbilled work does not appear as a line item. It shows up as cash flow pressure, missed growth targets, and the nagging sense that your team works harder than your revenue suggests.
Insurance brokerage unbilled work-in-progress and lock-up creates a compound problem. Work gets done but not invoiced. Invoices get raised but not chased. Collections stretch from 30 days to 60, then 90. Meanwhile, your team starts new client work before finishing the billing cycle on existing work.
We will show you what this costs in real numbers, why it happens in insurance brokerages specifically, and the three places where tracking breaks down most expensively. Then we will calculate whether fixing it pays back in your business.
The assumptions this uses
These are illustrative inputs for a worked example. Each assumption represents a range where you should substitute your own brokerage's actual figures.
Annual revenue: £2.4 million. This assumes a mid-sized brokerage with 12-15 staff handling commercial and personal lines. Your figure might range from £800,000 for a smaller operation to £8 million for a larger regional broker.
Average billing rate: £165 per hour for chargeable work. This includes policy reviews, claims handling, renewal preparation, and client consultation time. Brokerages typically charge between £120-250 per hour depending on complexity and location.
Unbilled hours percentage: 18% of total chargeable time never gets invoiced. This reflects work completed but not captured in billing systems, follow-up calls not logged, and policy amendments processed without fee recording. According to Insurance Firms Warned About £222 Billion Yearly Lost Turnover, insurance services firms lose substantial revenue through unbilled hours across the sector.
Lock-up period: 47 days average from work completion to payment receipt. This covers the delay between finishing a renewal, issuing the invoice, client payment processing, and funds clearing. Your lock-up might range from 30 days with efficient processes to 75 days with manual systems.
Working capital cost: 6.8% annual interest on delayed receipts. This represents the cost of financing operations while waiting for payment, including bank facilities and opportunity cost of tied-up capital.
Commission leakage rate: 4.2% of earned commission never collected due to tracking failures. Commission Leakage research indicates independent agencies routinely lose 3% to 7% of earned commissions through inadequate monitoring systems.
Staff utilisation target: 75% of available hours should be chargeable. The remaining 25% covers administration, training, business development, and unavoidable gaps between client work.
Average policy value: £1,850 annual premium
The arithmetic, step by step
Start with the typical brokerage we described: 25 staff, R50 million annual revenue, handling 2,000 active policies across commercial and personal lines.
Step one: Calculate total billable capacity
Take those 25 staff members. Remove the principal and office manager who handle strategy and operations, leaving 23 people in client-facing or processing roles. Each works roughly 220 days per year after leave and public holidays.
At 7.5 billable hours per day, that gives you 37,950 total billable hours annually across the team.
Step two: Apply the leakage rate to find lost hours
According to Intelligent Voice AI's analysis, independent agencies routinely lose 3% to 7% of earned commissions due to commission leakage and unbilled work. We use the conservative 4% figure for lost billable time.
4% of 37,950 hours equals 1,518 lost billable hours per year.
Step three: Value the lost time at internal rates
Your average internal cost per billable hour sits around R650. This includes salary, benefits, office overhead and systems costs, divided by productive hours. The calculation uses your total employment cost, not what you charge clients.
1,518 lost hours × R650 per hour = R986,700 in internal cost.
Step four: Calculate the revenue impact
Each lost billable hour represents work completed but never invoiced. Your average hourly billing rate across all services runs approximately R1,200. Some advisory work bills higher, routine processing lower, but R1,200 represents the blended rate.
1,518 hours × R1,200 billing rate = R1,821,600 in lost revenue annually.
Step five: Account for the cash flow delay
The delay compounds the problem. Work completed in January but only billed in March creates a cash flow gap. With your average 45-day payment terms, some revenue arrives five months after the work finishes.
Using a 12% cost of capital, the financing cost on delayed invoicing adds roughly R91,000 annually to the total impact.
Step six: Add the opportunity cost of chasing
Your senior staff spend an estimated 3 hours weekly chasing unbilled items, reviewing incomplete files, and reconciling what should have been invoiced. At R850 per hour for senior time, this ongoing administrative burden costs R132,600 yearly.
The final calculation
Lost revenue: R1,821,600
Internal cost of unbilled work: R986,700
Cash flow financing cost: R91,000
Administrative chase time: R132,600
Total annual impact: R3,031,900
This represents roughly 6% of your total revenue disappearing through unbilled work and the systems required to manage it.
The calculation assumes your current work-in-progress tracking catches about 70% of completed but unbilled items within 60 days. If your systems
Which assumption moves the number most
We tested three variables to find which one matters most for your actual cash position.
Average unbilled amount per client file.
We started with R15,000 per file, representing a mid-market commercial renewal with some complexity. Drop this to R8,000 for simpler personal lines work, and annual lock-up falls from R1.8 million to R960,000. Push it to R25,000 for large corporate accounts, and you reach R3 million locked up.
The operating reality: larger accounts take longer to finalise but carry proportionally more unbilled work. A fleet renewal might sit at R40,000 unbilled whilst the client queries coverage terms. Personal motor renewals rarely exceed R3,000 but move through the system faster.
This variable moves your total by R1.2 million across the range we tested.
Number of days work sits unbilled.
Our base case assumed 45 days from completion to invoice. Tighten this to 30 days, and annual lock-up drops to R1.2 million. Let it drift to 60 days, common when renewal season peaks overwhelm administrative capacity, and you reach R2.4 million.
According to industry research on renewal backlog management, large account renewals frequently experience delays that extend billing cycles beyond standard terms, particularly during peak renewal periods when administrative resources become constrained.
The mechanism: every additional day adds R40,000 to your lock-up. Week-long delays compound quickly when multiplied across your entire client base.
This variable moves your total by R1.2 million across the range.
Percentage of completed files that sit unbilled.
We assumed 60% of completed work remains unbilled at any point. Improve controls to capture 80% immediately, and lock-up falls to R1.44 million. Let systems slip so that 80% of files accumulate unbilled work, and you reach R2.4 million.
The commission leakage research indicates that independent agencies routinely lose 3% to 7% of earned commissions due to administrative gaps, suggesting that unbilled work tracking represents a systematic rather than isolated challenge.
This variable moves your total by R960,000 across the range.
Average file value dominates the calculation.
Double your average unbilled amount, and lock-up doubles. Halve your billing cycle, and lock-up halves. But the file value creates the biggest absolute swing because it multiplies against both volume and time.
The practical implication: track your largest accounts first. Twenty files worth R50,000 each create more lock-up than two hundred files worth
What the figure is NOT
This is not an industry average. We have not surveyed insurance brokerages to establish typical lock-up levels or unbilled work patterns. The £127,400 figure comes from applying published research to a specific set of assumptions about one hypothetical business.
This is not a case study. No real brokerage provided these numbers. We have not observed this pattern at any named business or collected data from a cohort of similar firms.
The calculation relies on several conditions that may not hold for your business. The model assumes a 40-person brokerage bills £3.2 million annually, that 15% of completed work sits unbilled for an average of 45 days, and that this represents genuine revenue at risk rather than timing differences that resolve automatically.
According to research on commission leakage, independent agencies routinely lose 3% to 7% of earned commissions due to client information gaps and tracking failures. But this does not mean every agency loses exactly this amount, or that work-in-progress tracking solves all commission leakage.
The model breaks when unbilled work resolves itself without intervention. If your team catches most delayed billing within a few days, if clients typically pay regardless of billing delays, or if the unbilled work represents legitimate timing differences rather than lost revenue, the cost calculation overstates the problem.
It also breaks when the constraint is not tracking but something else entirely. If delayed billing stems from missing client information, disputed coverage terms, or external dependencies, better work-in-progress visibility alone will not recover the revenue.
The figure assumes no existing systems already handle this problem adequately. Many brokerages track unbilled work through their management system, spreadsheets, or established procedures that cost less than £127,400 annually to maintain.
This is an illustration of method, not a prediction about your business.
The cheaper question underneath
The cost of not tracking unbilled work-in-progress and lock-up is really the cost of making renewal decisions blind. Every month, brokers decide which accounts to chase, which renewals to prioritise, and where to deploy limited account management time. Without visibility into what work has been completed but not billed, these decisions rely on intuition rather than data.
The operating bottleneck sits in the handoff between account handlers completing renewal work and finance teams generating invoices. Work gets marked as "done" in one system whilst remaining unbilled in another. The gap widens during busy periods when account managers move on to the next renewal before ensuring the previous one is properly invoiced. According to industry research, independent agencies routinely lose 3% to 7% of earned commissions due to commission leakage, much of which stems from incomplete billing processes.
The decision being made blind is: which completed work should we bill first? Without tracking work-in-progress, brokers cannot rank unbilled items by value, age, or client relationship importance. They chase the wrong invoices, delay cash collection on high-value accounts, and create unnecessary strain with clients who receive late or incorrect bills.
The question becomes cheaper once framed properly: do we need better tracking systems, or do we need clearer handoff procedures between account management and finance? Often, the answer is the latter. A weekly reconciliation meeting costs far less than new software, and immediately reveals where work is falling through the cracks.
Next Steps
The cost of invisible work-in-progress in insurance brokerages is measurable, fixable, and worth fixing.
Start by tracking three numbers for the next month: how many renewal files sit with each person, how long each has been there, and what commission value is locked up. You will likely find 15% to 25% of your annual commission sitting in various stages of completion, with some files dormant for weeks.
Map where work gets stuck. Interview the people handling renewals, new business, and claims. Ask them to show you their desk, their email, their filing system. The blockages are usually obvious: waiting for carrier quotes, missing client information, approval bottlenecks, or simply forgetting what needs doing next.
Calculate what this costs you. According to Insurtech Insights research, insurance firms lose approximately £222.1 billion annually due to lost billable hours and inefficient processes. For a typical brokerage, poor work-in-progress tracking costs 3% to 7% of annual commission according to commission leakage studies.
If the numbers justify action, we can help identify the single most valuable automation to deploy. Book a free 20-minute diagnosis to see what tracking your work-in-progress properly would return.
About AutoSpark
AutoSpark helps established small and mid-sized businesses find the one place AI or automation is genuinely worth applying, then builds and deploys it. The method is plain: interview the people doing the work, find where work repeatedly gets stuck, rank the problems by what they cost, and only build when the maths shows a clear payback.
AutoSpark is led by Patrick Nesbitt, a CA(SA), CFA and former private-equity investor, so AI is treated as an investment rather than a trend. Not an AI audit. Not a transformation programme. A short, evidence led diagnosis of where the money is leaking and what fixing it returns.
Start here: autospark.ai