by Contract Costing is a form of specific order costing used predominantly in the construction industry and other sectors where work is executed as per customer specifications over a long period. It involves tracking costs associated with a particular contract or project, which may span months or years. Each contract is treated as a cost unit, and all direct and indirect expenses—like materials, labor, overheads, and plant usage—are allocated accordingly.
Important Terminologies of Contract Costing:
1. Cost of Work Certified
This refers to the portion of the contract work that has been completed and verified by the contractee’s (client’s) architect or engineer. It represents the value of work approved for payment, based on progress certificates. It does not include uncertified or incomplete work. The contractor is entitled to receive payment for this portion, subject to retention and other terms. Cost of Work Certified is crucial for accounting, as it helps determine revenue recognition and profitability for ongoing contracts. It ensures both parties agree on the stage-wise value of completed work during the project.
2. Cost of Work Uncertified (Work-in-Progress)
This represents the value of work completed by the contractor but not yet certified or approved by the client. Though the work is physically done, it has not been officially measured or accepted for billing. This may be due to timing differences or partial completion of a specific task. It is considered work-in-progress and included as an asset in the contractor’s books. Costing records maintain this separately from certified work, as its valuation involves estimation and is typically valued at cost without any profit margin until certified.
3. Work-in-Progress (WIP)
Work-in-progress is the total value of work done on a contract that is still incomplete at the end of the accounting period. It includes both certified and uncertified work. WIP is treated as an asset in the balance sheet because it represents value created but not yet fully realized through payment. Accurate WIP valuation is essential for presenting a true picture of the financial status of ongoing contracts. It helps in profit recognition under contract costing and impacts the financial results, especially in long-term construction or manufacturing contracts.
4. Retention Money
Retention money is the amount withheld by the contractee (client) from the contractor’s interim payments, usually a fixed percentage of the certified value. It is retained until the contract is completed and defects liability period has passed. This acts as a security against defective work or incomplete jobs. The contractor receives the retained amount only after successfully fulfilling all contract obligations. Retention ensures quality compliance and safeguards the client’s interest. Though deducted from progress payments, retention money is shown as a receivable (asset) in the contractor’s balance sheet.
5. Notional Profit
Notional Profit is the difference between the value of work certified and the cost of work certified. It is a temporary or unrealized profit that arises in incomplete contracts. Since the contract is not fully completed, notional profit helps estimate the amount of profit that can be prudently recognized. Only a portion of notional profit is transferred to the Profit & Loss Account based on the stage of completion and cash received. This ensures that income is matched with actual contract performance and avoids overstatement of profits.
Notional Profit = Work Certified – Cost of Work Certified
6. Estimated Profit
Estimated Profit is the difference between the contract price and the total estimated cost to complete the contract. It reflects the expected total profit upon full completion of the project. It is used especially when a contract is nearing completion, and the business wants to recognize a portion of the final profit in the accounts. The portion transferred to the Profit & Loss Account is based on the percentage of completion and payments received. Estimated profit offers a more forward-looking approach than notional profit in contract accounting.
Estimated Profit = Contract Price – Estimated Total Cost
7. Escalation Clause
An escalation clause is a provision in the contract that allows for an adjustment in the contract price if there are significant changes in the cost of materials, labor, or other inputs during the contract period. This clause protects the contractor from unexpected cost increases due to inflation, fuel hikes, government policy changes, or supply shortages. It also benefits the client if prices fall, as contracts may include downward revisions. The clause ensures fair compensation and helps maintain financial feasibility, especially in long-term projects with unpredictable cost fluctuations.
