Cost Value Reconciliation: Knowing Whether Your Project Is Making Money

Here's a question that makes most small contractor directors uncomfortable: what's the margin on the project you're running right now?

Not the tender margin — the actual margin, today, based on what you've spent and what you're entitled to be paid. Most can tell you the first number (the tender said 8%). Very few can tell you the second number without sitting down for half a day with a calculator.

Cost value reconciliation — CVR — is the process of comparing what you've earned (value) against what you've spent (cost) to determine the actual profit or loss position of a project at any point in time. It's the financial equivalent of a site progress report: where are we, are we on track, and if not, what do we do about it?

On large contractor projects, CVR is a monthly discipline. The commercial team produces a cost-value report for every project, the numbers roll up to a divisional forecast, and the board makes decisions based on it. On small contractor projects, it often doesn't happen at all — and the director finds out the project lost money when the final account comes in six months after completion.

The Basic Concept

The CVR compares two things:

Value is the total amount you're entitled to be paid for the work done to date. This includes the original contract sum (apportioned to the work completed), agreed variations, pending variations (valued at your expected recovery), claims, and any other contractual entitlements. Value is your income.

Cost is the total amount you've spent or committed to spend on the work done to date. This includes subcontractor costs (including their final account projections), materials, labour, plant, preliminaries, and any other direct or indirect project costs. Cost is your expenditure.

The difference is your margin. If value exceeds cost, you're in profit. If cost exceeds value, you're in loss. And the trend — whether the margin is improving, stable, or deteriorating each month — is the most important indicator of project health.

Why Small Contractors Don't Do It

"We know how the job's going." The director or QS has a feel for the project's financial position based on experience and gut instinct. And often, that gut instinct is right — for the first few months. But as the project progresses, variations accumulate, subcontractor accounts diverge from allowances, and the margin position shifts. Gut instinct can't track twenty moving variables simultaneously. Numbers can.

"We don't have time." On a small firm where the QS is also pricing the next tender, managing three live projects, and doing the payment applications, finding half a day to produce a CVR feels like a luxury. But consider the alternative: discovering a £80,000 margin erosion at the end of the project instead of at month four when you could have done something about it.

"We don't have the data." This is the most legitimate reason. To produce a useful CVR, you need to know your costs to date (by trade, by package), your committed costs (subcontractor orders, material orders placed), and your value position (including variations and claims). If your cost data lives in four different spreadsheets, your subcontractor orders are in email, and your variation register doesn't have values attached, pulling a CVR together is genuinely difficult.

How to Do It

Here's a practical approach that works for small contractors:

Step 1: Set Up the Structure

Create a project cost report that mirrors the work breakdown of the contract. If your contract is based on a pricing schedule with 15 elements (strip-out, partitions, M&E, ceilings, flooring, etc.), your CVR should have the same 15 elements. Each element has two sides: value and cost.

Step 2: Determine the Value

For each element, calculate the value of work done to date:

Measured work. The contract rate multiplied by the quantity of work completed. If the contract says 500m2 of partitioning at £65/m2 and you've completed 350m2, the value is £22,750.

Variations. Add the value of agreed variations related to that element. For pending variations, include them at your assessed recovery — which might be less than 100% if some are disputed. Being honest about expected recovery here is critical. Overvaluing pending variations inflates your margin and creates a false sense of security.

Claims. If you have loss and expense or prolongation claims in progress, include them at your assessed recovery. Again, be realistic.

Step 3: Determine the Cost

For each element, compile all costs to date:

Subcontractor costs. What you've paid or certified to date, plus your projection of the final subcontractor account. If the M&E subcontractor's order is £280,000 and you estimate their final account will come in at £295,000, use £295,000 as the projected cost — not £280,000.

Materials. Direct material purchases, valued at invoice cost.

Labour. If you have direct labour on site, the cost of that labour allocated to each work element.

Preliminaries. Time-related and fixed prelims costs to date.

Overheads and margin. Your overhead contribution and profit margin, calculated as a percentage of cost.

Step 4: Compare and Analyse

For each element, subtract projected cost from value. This gives you the margin per element. Some elements will be in profit. Some might be in loss. The total gives you the overall project margin.

The real value of CVR is in the detail. If the M&E element is showing a £15,000 loss against a tender allowance of £8,000 profit, you need to understand why. Is the subcontractor's final account higher than anticipated? Has the scope increased without a corresponding variation being captured? Are there contra charges you haven't claimed?

Step 5: Project the Outturn

The CVR isn't just about where you are today — it's about where you'll end up. Using the current position and the known outstanding items (remaining variations to agree, claims pending, subcontractor accounts to finalise), project the expected final margin.

This projection is the number your business decisions should be based on. If the projected outturn shows a 2% margin on a project that tendered at 8%, you need to act now — not discover it at completion.

Monthly Discipline

The CVR should be produced monthly, ideally within a week of the month end. Compare each month's position against the previous month and the original tender forecast. Look for trends: is the margin improving, stable, or declining? Are cost overruns concentrated in one area or spread across the project?

The monthly CVR should drive a brief review meeting — 30 minutes with the project manager and QS. What's changed since last month? Where are the risks? What actions are needed? This meeting is worth more than any amount of retrospective analysis at the end of the job.

The Uncomfortable Truths

CVR sometimes tells you things you don't want to hear. A project you thought was doing well is actually breaking even. A variation you assumed was agreed turns out to have no written instruction behind it. A subcontractor's account is going to come in 15% higher than the order value.

That discomfort is the point. Better to know at month six that the project is heading for a 2% margin — when you can still capture outstanding variations, challenge subcontractor costs, and manage the remaining works efficiently — than to discover it at the final account when the money's already spent.

Making It Practical

At Construction AI, the financial module builds CVR into the project financial workflow. Contract values, variation registers, subcontractor accounts, and cost data feed into a live cost-value position that updates as the project progresses. Instead of assembling a CVR from scratch each month, the data accumulates through normal commercial administration and the reconciliation becomes a review exercise rather than a compilation one.

But even without software, a well-structured spreadsheet updated monthly will give you the information you need. The important thing is doing it. A rough CVR produced every month is infinitely more valuable than a perfect one produced at the end of the job.

Know whether your project is making money. Know every month. And if it isn't, do something about it before the final account tells you what you already should have known.