Cost value reconciliation, and what it is really for
It is the report that tells a contractor whether a job is making money. It is also the report most easily made to say whatever the person preparing it needs it to say.
QScope Team · 25 June 2026 · 5 min read
A cost value reconciliation compares the value earned on a project with the cost incurred in earning it, at a common date, to establish the margin. On a contractor’s job it is the single most important internal report there is.
It is also, more than any other report, a matter of judgement dressed as arithmetic.
The cut-off is everything
Value and cost must be measured to the same point. That sounds obvious and is routinely got wrong, because value is usually taken from the last certificate and cost from the ledger at month end, and those are rarely the same date.
The gap flatters the job if cost lags, and damages it if value lags. Either way the margin reported is not the margin.
Accruals
Cost incurred but not yet invoiced has to be accrued: materials delivered, subcontract work done, plant on hire. Without accruals the cost side is systematically understated and every job looks profitable until the invoices arrive.
This is the mechanism behind most late margin collapses. The job reported eight per cent for nine months and then reported two, not because anything changed in month ten but because that is when the accruals caught up.
The value side is not just the certificate
Certified value is one input. A proper value figure also reflects work done but not yet certified, variations instructed but not yet valued, and a considered view on claims.
Each of those is a judgement, and each is where optimism enters. A variation carried at the contractor’s application value rather than a realistic settlement value inflates the margin by the difference, and the difference is not usually small.
Provisions and the forecast
A CVR should carry provisions for known risk: defects likely to need putting right, damages exposure, disputed deductions. Carrying none is not neutrality, it is an assumption that nothing will go wrong.
The forecast to completion matters as much as the position to date. A job at ten per cent margin with a difficult final quarter ahead is not a ten per cent job.
Why it gets manipulated
Because it is reported upwards, and because margin declines are unwelcome. The pressures are structural rather than dishonest: carry the variation a little higher, defer the provision a month, take a slightly optimistic view of the claim.
Each individually is defensible. Together they produce a job that reports steadily until it reports catastrophically.
What makes one trustworthy
A consistent cut-off, accruals that are actually done, variations valued on a settlement basis rather than an application basis, and provisions that exist. Plus the discipline of comparing this month’s report to last month’s and explaining every movement.
A CVR nobody can explain the movement in is not measuring anything.
QScope keeps certified value, variations, retention and cash position on one screen, so the value side of a reconciliation is not assembled from three sources.