Product
Overview
The commercial operating system for construction. Capture a commercial event once, every downstream workflow stays connected.
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Contract models
Fixed, cost plus & open book
Claim a fixed sum, reimburse at actual cost, or bill fully open book. ClaimStack handles each, the right way.
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Solutions
Overview
Built for every side of the contract. One commercial record the whole project team can trust, head contract to supplier.
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For subcontractors
Free to collaborate
Invited to a project? Submit claims and variations in a format that holds up, free forever.
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Resources
Overview
Practical guides on claims, variations and contracts, plus how ClaimStack connects, who's behind it, and how we keep your commercial data safe.
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See it on your project
A 30-minute walkthrough on your numbers, where the margin usually leaks.
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Pricing
Solutions/Cost reporting

Know where the margin stands, today.

Your cost report should tell you where the money is right now, not where it was at the last month-end. ClaimStack builds the whole position, budget, committed, forecast and actual, straight from the live commercial record, cent-perfect on every line, so exposure surfaces while you can still act on it and no one loses a week rebuilding the report.

The commercial OS for cost reporting

The report is a view of the record, not a rebuild of it.

A report assembled by hand from four spreadsheets is out of date the moment it is finished, and no two versions agree. ClaimStack reads every column from the same live record, procurement, contracts, variations, claims and payments, so the position is current whenever you open it. You make decisions on what is true today, not on a reconstruction of last month, and the margin never surprises you after the fact.

You cannot protect a position you cannot see.

01 Budget, committed, forecast and actual live in four spreadsheets that never quite agree.
02 The report is rebuilt by hand at month-end, so it is already out of date by the time it lands.
03 Exposure surfaces weeks later, once the accounts catch up, too late to do anything about it.
04 Every stakeholder is handed a slightly different number, and no one is sure which one is current.

The whole position, current whenever you open it.

01 · One view

Budget, committed, forecast and actual, on one line.

The whole cost position of a project sits on a single line: what it was set up to cost, what is committed, where it is heading, and what has been paid. No stitching four spreadsheets together and no reconciling versions that never quite agree, just the four truths of every line in one view you can trust.

03-200 · Structure
Concrete structure
Subcontract
Budget$4,260,000
Committed$4,180,00098% of budget
Forecast$4,310,000
Actual$2,980,000Paid to date
Variance −$50,000Live, reconciled from the record
02 · Every line in full

Open any line, see the whole story.

Open a budget line and see it whole: the original budget, the approved variations that lift it to the current budget, anything still pending, what is committed and what has been paid. Every figure is reconciled from the record and correct to the cent whenever you look, so there is no line you cannot explain to a client, a bank or the board.

03-300 · Structure
Concrete structure
Cent-perfect
Original budget$3,000,000
Approved variations · 2+$180,000
Current budget$3,180,000
Committed · 1 contract$3,140,000
Paid to date$2,210,000
Pending variations · 1+$45,000 · not yet in budget
03 · Reports on demand

Ten reports, straight from the record.

Cost report, executive summary, variation register, risk and opportunity, PO and invoice positions, labour and more, each a formatted PDF generated from the live record on demand. The report a client, a lender or the board asks for is minutes away, not a week of collating attachments and reconciling them by hand.

Financial hub · Reports
Cost Reports
10 report types
Cost Report
Generate PDF
Executive Summary
Generate PDF
Variation Register
Generate PDF
Detailed Budget Report
Generate PDF
Risk & Opportunity Register
Generate PDF
PO Value vs Invoiced
Generate PDF
Invoices & Burn Rate
Generate PDF
Labour Tracker
Generate PDF
Staff Timeline
Generate PDF
Variation Position Report
Generate PDF
04 · Snapshots

Report on your own cadence.

Capture a point-in-time snapshot of the whole cost report whenever you need one, or set it to run weekly, fortnightly or monthly, then compare any two to see exactly what moved between them. You keep a defensible history of the position over time without freezing a spreadsheet and filing it away.

Financial hub · Snapshots
Financial Snapshots
Take snapshot
Auto-capture
WeeklyFortnightlyMonthlyOff
February 2026 Review28 FebManual$26.8M
End of January31 JanAuto$26.6M
End of December31 DecAuto$26.1M
One line, four truths

The whole cost position, in one view.

Budget
The agreed target

What the project was set up to cost, held as the baseline every other column is measured against.

Committed
Contracts and orders

Subcontracts, purchase orders and other commitments already made against the budget.

Forecast
Cost to complete

Where the position is heading, including variations in flight and known exposure.

Actual
Paid to date

Claims assessed and payments made, reconciled straight from the commercial record.

Contract works vs variations

Are you really making money on variations?

A job that looks healthy overall can be carrying variations that lose money, or a base contract that is slipping while variations prop the total up. ClaimStack tracks the variations you claim upstream separately from the contract works and links the costs against them, so you measure each on its own and the truth is not averaged away in the project total.

Contract works

Measure the base contract on its own, budget against committed, forecast and actual, so you know how the works you signed up for are really performing.

Upstream variations

Track the variations you claim up separately, with their committed and actual costs linked against them, so each one is a line you can measure rather than a number lost in the project total.

The real margin

See, variation by variation, whether the change actually made money or quietly cost you, and whether the contract works are ahead or behind on their own terms.

What the business gets

Better decisions, on current numbers.

The true position, whenever you open it
Exposure caught while you can still act
Cent-perfect on every line
Ten reports, minutes not days
One number every stakeholder trusts
No report rebuilt at month-end
Cent
Perfect, every line
0
Month-end rebuilds
10
Reports on demand
Yours
The reporting cadence
Time back

Close the month without rebuilding the report.

Every commitment, variation, claim and payment is captured as it happens, so the cost report is current the moment you open it. No collating four spreadsheets, no chasing the latest figures, no reconstruction before the numbers can be trusted; the time goes into acting on the position, not assembling it.

AssemblyNo four spreadsheets stitched together each month.
ReconciliationNo two versions of the number to argue over.
ReportingNo week lost collating a report from attachments.

Frequently asked

Where do the numbers come from?

Every column reads the same live commercial record: procurement, contracts, variations, claims and payments. Nothing is re-keyed into the report, so there is no second version of the truth to reconcile and no line you cannot trace back to where it came from.

Do we still need a month-end reconciliation?

The report is a view of the record rather than a rebuild, so it is current whenever you open it. There is no separate reconstruction to run before the figures can be trusted, which is where most of the month-end effort usually goes.

How does it help us catch exposure earlier?

Committed cost, variations in flight and known risk all sit on the forecast column as they happen, so the position moves the moment something changes rather than weeks later when the accounts catch up. You see where the job is heading while there is still time to act, not after the margin is already gone.

How do we know if we are actually making money on variations?

The variations you claim upstream are tracked separately from the contract works, with their costs linked against them, so the margin on each variation is visible rather than buried in the project total. You can see, change by change, whether a variation made money or cost you, and measure how the base contract works are performing on their own, instead of letting a healthy-looking total hide a problem in either one.

What reports can we generate, and how often?

Ten formatted PDF reports, the full cost report and executive summary, the variation register, the risk and opportunity register, PO and invoice positions, labour and more, each generated from the live record on demand. Capture a snapshot whenever you need one or set them to run weekly, fortnightly or monthly, and compare any two to see what moved.

The position is already in the record.
Just read it.