The extra material bill includes a price rise and a scope change
Distinguish input-price movement from altered scope in a materials cost increase discussion.
Corporate Recovery Partners
01 / 06
One supplier increase contains several causes
Imagine a steel subcontractor budgets for twenty units and later orders twenty-four after revised drawings arrive. The unit price has also increased. The owner describes the whole extra bill as steel inflation. That description hides two different causes. Reconstruct the price and quantity changes before discussing the cost with the customer or deciding how to update the job forecast.
business.gov.au recommends documenting contract variations and checking the relevant construction rules. Ask your adviser how the actual agreement treats price movements and changed scope. A customer instruction to alter quantities may raise different questions from a supplier's rate increase. Neither should be presented as an automatic entitlement to additional payment without reviewing the documents and circumstances.
Save the original drawings, quantity allowance, supplier quote and accepted customer scope. Record the dates and units used. Avoid replacing the original estimate with the revised figures, because that removes the comparison needed to explain the difference. In the hypothetical example, the baseline is twenty units at the original rate, with any exclusions clearly identified.
Show the effect of the changed rate on the original quantity separately from the cost of additional units. Identify specification, freight or fabrication changes on their own lines where relevant. Have the estimator or accountant check the arithmetic and prevent double counting. The calculation explains the commercial movement; it does not determine which parts are recoverable under the contract.
Attach the revised drawing or instruction supporting the extra quantity and record who issued it. Keep any unresolved authority or approval question visible. Ask about required notices and responses without assuming that technical acceptance also approved a price. The customer should be able to see which document relates to which change, rather than receiving an unexplained percentage increase.
Discuss the supported components with the relevant adviser and customer through the agreed process. Update the cost-to-complete while keeping proposed recovery separate from confirmed adjustments. CRP can help organise the figures if the gap is affecting cash. A clear breakdown gives each issue an appropriate response instead of forcing every cost difference into the single label of material inflation.
