How to calculate it
Certified value minus direct cost (labour, materials, plant, subcontract) on a job, divided by certified value. Measured monthly on a certified basis, not on applications.
Why it matters
The number that tells you which jobs make money while they're still running. Company-level margin is an average and hides the loser.
The Taxtful view
Below 15% on a live job means something has changed: scope creep without variations, labour over plan, or a price that was wrong from the start. Find out which this month, not at final account.
Every Taxtful client sees this number on their Taxtful View each month, with the benchmark alongside. Benchmarks are drawn from our own client base and published sector data; ranges vary by trade and contract type.
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