Variations are a normal part of construction. Design changes. Changed site conditions. Additional scope. Access constraints. Program impacts. Client instructions. The work still needs to be delivered, and often the contractor needs to proceed before every commercial detail has been resolved. That creates an unavoidable tension. Operationally, the business may need to act immediately. Financially, the right to recover the associated cost may remain uncertain. The danger begins when management starts treating expected variation revenue as though it were already agreed revenue.

The cash leaves first Consider a contractor instructed to perform $500,000 of additional work. Labour is mobilised. Materials are purchased. Subcontractors perform the work. The contractor may therefore spend hundreds of thousands of dollars before the commercial position is finalised.

The variation is submitted. The client assesses it. Negotiations occur. Eventually an amount may be approved. Only then can billing and collection follow. The sequence can look like: Work performed then Cost incurred then Variation submitted then Assessment then Agreement then Billing then Cash The contractor funds almost the entire journey. That is why variations are not simply a margin issue. They are also a working-capital issue.

Identified doesn't mean submitted Variation reporting needs enough detail to distinguish where each item actually sits. A useful progression is: Identified Costed Submitted Assessed Approved Billed Collected Each stage represents a different level of commercial and cash certainty. A variation that has been identified internally but not submitted shouldn't be viewed in the same way as one formally approved by the customer.

That sounds obvious. But when hundreds of variations sit across multiple projects, those distinctions can disappear inside consolidated reporting.

Submitted doesn't mean approved A contractor may have a strong contractual basis for a variation. That doesn't guarantee the customer will immediately accept the submitted value. The customer may dispute:

  • entitlement
  • quantity
  • rates
  • productivity
  • delay impact
  • scope interpretation
  • supporting records.

A $1 million submitted variation may ultimately settle for $1 million. It may settle for $700,000. It may take twelve months to resolve. Those outcomes have very different implications for margin and cash. Management should therefore understand both the amount submitted and the amount realistically expected to be recovered.

Approved doesn't mean cash Even after a variation is agreed, the cash journey may not be complete. The amount may need to enter the next progress claim. The claim may then require certification. Payment terms apply. Retention may be deducted. The customer may still pay late.

So even commercially secure variation revenue can remain outside the bank account for some time. That is why variation management needs to connect commercial status with cash forecasting.

Variations can support reported margin before they support cash This is where financial visibility becomes particularly important. A project incurs the cost of variation work. Management expects the amount to be recovered. Depending on the circumstances and accounting treatment, revenue may be recognised before cash is received. The project margin may therefore remain healthy. But the contractor has already funded the work. If unresolved variations accumulate across several projects, the business can report acceptable profitability while substantial cash becomes tied up in commercial positions. The key management question is therefore not simply: "How much variation revenue is in the forecast?" It is: "How much cash have we already spent against variation revenue that has not yet become an agreed and collectible entitlement?" That number can tell a very different story.

Age matters A newly submitted variation and one that has been unresolved for nine months shouldn't receive the same level of confidence. As variations age, management should increasingly challenge: Why hasn't this been resolved? Is entitlement genuinely clear? Is the expected recovery still realistic?

Is documentation sufficient? Does the forecast need to change? Who owns the next action? Ageing doesn't automatically make a variation unrecoverable. But unresolved commercial positions shouldn't be allowed to become permanent fixtures in the forecast without challenge.

Documentation matters Commercial outcomes are easier to defend when the underlying records are strong. That can include:

  • client instructions
  • notices
  • daily records
  • labour records
  • plant records
  • supplier invoices
  • photographs
  • program information
  • correspondence
  • contractual substantiation.

The financial team cannot recreate that evidence six months later. Variation management therefore starts operationally, not at month-end. Good commercial discipline makes later financial reporting more reliable.

Separate entitlement from optimism Project teams naturally want to protect project margin. That creates a risk that expected variation recoveries become part of the forecast before sufficient commercial certainty exists. A useful challenge is: What evidence supports the value currently included? Not:

"Do we think we'll get it?" But: "Why do we think we'll get it?" There should be a clear contractual and commercial basis. If the answer depends heavily on future negotiation, management should understand that risk.

Make variation exposure visible For each material project, management should be able to see: Approved variations Submitted but unapproved variations Identified but unsubmitted variations Disputed variations Amount included in forecast revenue Associated cost already incurred Amount billed Cash collected Age Owner and next action That may sound like a lot of information. In practice, a disciplined variation register can make the position considerably clearer than one large total.

Connect variations to WIP Unapproved variations can also contribute to increasing WIP or contract asset balances. If WIP is growing, management should understand how much relates to routine timing and how much relates to unresolved commercial positions.

Those are different risks. Work completed just before month-end that will be billed next week is relatively straightforward. Value sitting against a disputed six-month-old variation is not. This is why looking at total WIP without understanding its composition can be misleading.

Connect variations to cash Variation reporting should also feed directly into the cash forecast. A cash forecast that assumes an unresolved variation will be collected next month may be technically complete but commercially unrealistic. Management should understand how much forecast liquidity depends on uncertain receipts. Scenario analysis can help. What happens if the variation is paid three months later? What happens if only 70% is recovered? What happens if several major variations move at the same time? That tells management how much financial exposure is sitting behind the commercial assumptions.

Warning signs management should investigate I would look more closely when:

  • unapproved variations are growing faster than project revenue
  • significant variation values remain unsubmitted
  • large balances have been unresolved for several months
  • project margin depends heavily on full variation recovery
  • variation revenue increases while cash conversion deteriorates
  • WIP is growing because variations aren't being billed
  • project teams cannot clearly explain entitlement
  • the same variation values remain in forecasts month after month without progress
  • there is no clear owner for commercial resolution
  • cash forecasts assume collection before commercial agreement is likely.

The issue isn't having unapproved variations. Most contractors will.

The issue is not knowing the financial exposure they create.

The objective is to shorten the distance to cash Variation management is often discussed as a contractual process. It should also be viewed as a cash-conversion process. The contractor has already performed or committed resources. The objective is to move as efficiently as possible from: instruction to entitlement to agreement to billing to cash. Every unnecessary delay increases the amount of contractor capital tied up in the project. And as the business grows, relatively small delays across multiple projects can become significant.

Revenue quality matters Not every dollar of forecast revenue carries the same level of certainty. Approved contract revenue is different from an unresolved claim. Cash in the bank is different again. Management therefore needs to look beyond the headline project margin and understand the quality of the revenue supporting it.

Because ultimately, a profitable variation isn't particularly useful if the contractor funds the work for twelve months and then recovers substantially less than expected. The better question isn't simply: "How much variation revenue do we have?" It is: "How much of that value is commercially secure, how much cash have we already invested in it, and how quickly can we convert it into cash?" That is the financial discipline variations require.

Salt Strategic Advisory works with growing construction, infrastructure and project-based businesses to strengthen project forecasting, working-capital visibility, cash flow and commercial decisionmaking. Where unapproved variations are becoming material, understanding their age, recoverability and cash exposure can be just as important as understanding the total value being claimed.