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The commercial operating system for construction. Capture a commercial event once, every downstream workflow stays connected.
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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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Built for every side of the contract. One commercial record the whole project team can trust, head contract to supplier.
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Invited to a project? Submit claims and variations in a format that holds up, free forever.
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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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A 30-minute walkthrough on your numbers, where the margin usually leaks.
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Solutions/Forecasting

Decide on today’s number, not last month’s.

Live forecasting on your real commercial numbers, a cost-to-complete that moves with every variation, claim and commitment. No lockdown period, no month-end rebuild, so you always know where the margin stands and can act while it still matters.

The business case for live forecasting

An out-of-date forecast is an expensive guess.

Traditional forecasting runs in cycles. A window opens, the project team stops to rebuild the numbers by hand, and by the time it’s signed off the job has already moved on. ClaimStack forecasts continuously instead. Every commercial event feeds the cost-to-complete the moment it happens, so the number is accurate on any day of the month, not just the one you reported. That is the advantage: better decisions, made sooner, on numbers you can actually stand behind.

A forecast you rebuild once a month is wrong the other twenty-nine days.

01 Decisions get made on numbers that were already weeks old the day they were signed off.
02 Margin slips show up at month-end, long after the moment you could have acted on them.
03 The project team loses days each period rebuilding the forecast by hand.
04 The board sees one number, the job runs on another, and no one’s sure which is real.

The real position, any day of the month

You never wait for a reporting cycle to know where a job stands. Variations, claims and commitments feed the cost-to-complete as they land, so the forecast on the 3rd is as trustworthy as the forecast on the 30th. Budget, committed, spent and forecast final cost sit on one line, with the variance to budget always current.

Live cost-to-completeAny-day visibilityVariance to budget
02-100 · Cost line
Earthworks & piling
+$20,000 under
Budget$1,840,000Cost plan
Committed$1,795,000Let to date
Spent$1,240,000Cost incurred
Forecast final$1,820,000Cost at completion
SpentCommittedBudgetForecast final
Variance to budget+$20,000

See the slip while you can still act

When a forecast only updates monthly, exposure surfaces weeks after it appears, once the room to recover has gone. Track risks and opportunities against the live forecast, each with a value and a likelihood, and read the net exposure at a glance, early enough to actually do something about it.

Risk & opportunityEarly warningMargin protection
Forecast · Risk & opportunity
Exposure on the forecast
+$190,000 net
RiskFacade access & weather delayLikely+$120,000
RiskLatent ground conditions, pilingPossible+$85,000
RiskServices coordination reworkPossible+$60,000
OppSteel alternative sectionLikely-$45,000
OppEarly-payment discount, servicesPossible-$30,000
Risk $265,000Opportunity $75,000Net exposure +$190,000

Kill the forecasting window

No window to open, no cutoff to hit, no team stood down for a week to reassemble spreadsheets. Commercial events are captured once, as they happen, and the forecast is simply always current. Approve a variation and the forecast final cost moves with it, on the spot. Your best people manage the numbers instead of rebuilding them.

No lockdown periodNo re-keyingTime back
15-700 · Exposure move
Building services
Variation approved
VO-018Switchboard capacity upgrade+$68,000
Forecast final cost$5,280,000$5,348,000+$68,000
Variance to budget-$40,000-$108,000-$68,000
Budget held at $5,240,000 · exposure widens $68,000Live forecast

One number the whole business trusts

Every position traces to a real commercial event, with who changed it, when and why on the record. So the number you take to the board is the same number running on the job, and the same number in the cost report, not four spreadsheets reconciled after the fact.

Audit trailPortfolio roll-upBoard-ready
Edit cost to complete
Site establishment & setup · Budget $1,250,000 · Committed $35,865
EditorHistory
John Smith10 Jul 2026, 3:37 pm
“Half amount required now”
ChangedCTCSite sheds$50,000.00$25,000.00
John Smith2 Jul 2026, 10:12 am
“Aligned to awarded subcontract”
ChangedCTCPerimeter fencing$96,000.00$82,400.00
Two ways to forecast

The month-end rebuild, or the number that’s already right.

The forecasting window
A window opens once a month.
The team stops to rebuild the numbers by hand.
Events sit on a pad, waiting to be keyed in.
By sign-off, the job has already moved on.
Always live with ClaimStack
The forecast is current every day of the month.
Events feed the number the moment they happen.
Nothing is re-keyed, nothing is lost.
You act on exposure while there’s still room to move.

What a live forecast changes.

Decisions on today’s numbers
No month-end rebuild
Margin risk surfaces early
One number, board to site
Every change on the record
Cashflow that reflects reality

Frequently asked

Isn’t a monthly forecast good enough?

A monthly forecast is accurate on one day and drifting on the other twenty-nine. On a live job, variations are approved, claims are issued and commitments are raised every week, each one moving the real cost-to-complete. Forecasting once a month means deciding on a picture that was already weeks out of date the day it was signed off.

Where do the live numbers come from?

From the commercial work you’re already doing in ClaimStack. A variation submitted or assessed, a claim issued, a commitment raised, each event feeds the cost-to-complete the moment it happens. Nothing is re-keyed and nothing waits for a reporting window, so the forecast stays current on its own.

How is this different from our ERP or accounting forecast?

Accounting systems report what has already been invoiced and paid, weeks after the fact. ClaimStack forecasts the commercial position as it forms, capturing the event before it ever reaches the ledger. Approved claims, invoices and commitments still flow through to Xero, MYOB and your ERP, so the two stay reconciled without double entry.

Can we still report at month-end?

Of course. Month-end becomes a snapshot of a number that was already current, not a week-long rebuild. You can present the position on any date, with a full audit trail behind every figure, because the forecast was live the whole time.

Retire the forecasting window.
Forecast live.