Insights · 2 March 2026 · 7 min read
The real cost of being the bottleneck: a worked example

Accountants are not famous for drama, so let me offer the least dramatic sentence I know that reliably changes how an owner runs their week: you are your business's most expensive employee, and most of your hours are billed to its cheapest jobs. Here is the arithmetic, using a composite client we will call David.
David's numbers
David owns a fit-out contractor turning over £1.8m. He works 58 hours a week and takes three weeks off a year, on two of which he answers the phone anyway. Call it 49 working weeks: 2,842 owner-hours a year. Revenue per owner-hour: £633. That is not his "worth" in any precise sense — the whole team generates the revenue — but it is the honest exchange rate on the scarcest resource the business has.
Where the hours actually go
We had David log a fortnight, in 30-minute blocks, no tidying. The split, annualised:
- Admin any competent hire could do — invoice queries, ordering, rota gaps, chasing timesheets: 16 hours a week, 784 hours a year. Market rate to buy those hours: roughly £14 an hour, or £11,000.
- Skilled work others are paid to do — estimating he "just checks" (then redoes), site visits a foreman could run: 14 hours a week, 686 hours a year. Market rate perhaps £30: £20,600.
- Owner-level work — pricing strategy, key hires, the bank, the pipeline, the occasional actual holiday thought: 8 hours a week. Everything else is meetings that inherited him.
The two ways to read it
Reading one is the cheerful one: David can buy back 1,470 hours a year for about £32,000 in wages. Reading two is the one that stings. Those 1,470 hours, redeployed at anything like owner-level value, are worth several multiples of that — and the proof is sitting in his own history. The last time David spent a clear month on pricing (three years ago), gross margin moved two points: worth £36,000 a year, every year, from one reclaimed month. The bottleneck is not costing him £32,000. It is costing him the compounding he never gets to start.
Why owners resist the sums
Partly because the admin feels free — no invoice arrives for the owner's Tuesday evening. Partly because delegation has a real cash cost this quarter and a benefit that lands over years, and cash this quarter always shouts louder. And partly, honestly, because being busy is a comfortable place to hide from the harder, vaguer owner-work. The spreadsheet does not care. Every year the sums are ignored, the business pays full price for its cheapest labour and gets none of its dearest.
Do your own version
Log a fortnight in half-hour blocks — honestly, including the evening catch-ups. Sort the blocks into the three buckets. Price buckets one and two at market rates, and price your own hour at revenue divided by hours. Our Time-Worth Calculator will do the arithmetic in ninety seconds. Then book the first hire, and protect the first reclaimed morning like it is your best client. It is.
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