A project can earn revenue before it has an unconditional right to invoice, or invoice before it has earned the related revenue. Contract assets and liabilities make that timing difference visible; WIP supports operational control but must not become a vague account where unexplained balances accumulate.
Why this matters now
Owners use WIP to mean unbilled revenue, cost on incomplete work, contract inventory, deferred cost, or a management estimate of work performed. These meanings have different accounting consequences. A controlled system identifies what each balance legally and economically represents.
Under revenue-over-time models, progress measures must faithfully depict transfer of control. Cost-to-cost may need adjustments for inefficiency, waste, uninstalled material, or procurement that does not represent performance. Output methods require evidence such as units delivered, surveys, milestones, or customer acceptance.
What is happening now
- IFRS 15 distinguishes a contract asset from a receivable: the former remains conditional on something other than passage of time. [S51]
- Revenue is recognized over time only when one of the standard criteria is met; otherwise it is recognized at a point in time. [S51]
- The progress method is applied consistently to a performance obligation and updated at each reporting date. [S51] [S57]
- Illustrative examples show that billing schedules do not by themselves determine revenue; enforceable rights and performance do. [S57]
The concept map
Recognized consideration for completed performance when the right to payment remains conditional.
An obligation to transfer goods or services for consideration already received or due.
An operational or accounting balance for incomplete work whose precise definition must be documented.
The input or output method used to depict performance toward complete satisfaction of an obligation.
How this reaches the business
To manage WIP, contract-asset, billing, and revenue-over-time control well, trace how it changes the business rather than stopping at the headline or technical label. The subject matters when it alters prices, payment timing, financing, reporting, controls, customer behavior, or the probability of disruption. The owner’s task is to convert the issue into measurable decisions, exposures, and responsibilities.
Revenue quality
Reliable progress prevents revenue from being pulled forward by optimism or delayed merely because invoices are not issued.
Billing control
The contract-asset schedule identifies earned but conditionally billable amounts and the milestone needed to create a receivable.
Cash forecasting
Revenue, invoice, receivable, and cash dates should be forecast separately; one does not guarantee the next.
Audit trail
Every balance needs a contract, obligation, progress evidence, calculation, billing event, and ledger reconciliation.
Illustrative worked example
Scenario: A $6.0 million engineering contract qualifies for revenue recognition over time. Expected total cost is $4.5 million. At the reporting date, eligible cost incurred is $1.8 million, invoices total $2.0 million, and cash collected is $1.5 million.
| Line | Value / calculation |
|---|---|
| Cost-to-cost progress | $1.8m ÷ $4.5m = 40% |
| Cumulative revenue | 40% × $6.0m = $2.4m |
| Contract asset and receivable | $2.4m revenue − $2.0m billed = $0.4m contract asset; $0.5m remains receivable after collection. |
Decision reading: The company has performed more than it billed, and billed more than it collected. Management needs three separate actions: validate progress, reach the next billing condition, and collect the existing receivable.
The figures are illustrative and are not a market forecast, valuation, tax opinion, or investment recommendation.
A disciplined decision workflow
- Define the business question, time horizon, decision owner, and measurable exposure connected to WIP, contract-asset, billing, and revenue-over-time control; do not begin with a prediction or a preferred answer.
- Establish a verified baseline using current contracts, cash flows, prices, balances, and operational capacity.
- Model at least three conditions: a base case, an adverse case, and an opportunity case. State every assumption.
- Choose leading indicators, thresholds, decision owners, and pre-authorized responses before pressure arrives.
- Review actual results against the scenario, explain the variance, and update the decision rather than defending the old forecast.
Indicators worth monitoring
- Revenue, billing, receivable, collection, and cost by contract and performance obligation.
- Contract-asset aging and the condition preventing invoicing.
- Contract-liability balance and future delivery obligation.
- Progress method, evidence, excluded cost, and estimate changes.
- WIP reconciliation from project subledger to general ledger.
Risks, traps, and false conclusions
The main analytical danger is to reduce WIP, contract-asset, billing, and revenue-over-time control to one metric, rule, or narrative. Outcomes are shaped by interacting prices, policy choices, accounting treatment, balance-sheet constraints, behavior, timing, and execution. A disciplined reader identifies the assumption or condition that would make the current conclusion wrong.
- Treating every unbilled amount as revenue without enforceable rights and performance evidence.
- Using invoices or cash receipts as the sole measure of performance.
- Including waste or major uninstalled material in progress without required adjustment.
- Allowing old WIP and contract assets to remain unsupported.
A practical owner checklist
- Map where WIP, contract-asset, billing, and revenue-over-time control touches reporting, revenue, cost, cash, debt, inventory, contracts, controls, and customer behavior; identify what is material and what is not applicable.
- Separate the elements management can control from those that can only be monitored, transferred, or insured.
- Attach every major assumption to a source, effective date, responsible person, and next review date.
- Protect liquidity first; a technically profitable response can still fail if cash arrives too late.
- Use reversible experiments for uncertain opportunities and fixed limits for risks that can become existential.
- Communicate one decision version across finance, sales, purchasing, operations, and leadership.
How Varza should help
Varza should not reduce this subject to a generic explanation or news summary. It should connect authoritative external evidence with the organization’s authorized internal data, show how the issue reaches financial and operating records, and make the owner’s options visible before a problem becomes a crisis.
- Build a live decision view that connects contracts, performance obligations, progress evidence, costs, WIP, revenue, billing, receivables, collections, and ledgers with transactions, contracts, cash, reporting, and operational records.
- Run scenario and sensitivity analysis, showing the formula, assumptions, source data, and confidence limits behind each conclusion.
- Create owner-defined alerts and approval workflows when a threshold is crossed, while preserving audit trails and human authority.
Questions to ask Varza AI
- What is our largest material decision, risk, or opportunity related to WIP, contract-asset, billing, and revenue-over-time control, and what evidence supports that assessment?
- What changes under the adverse scenario, and which action protects cash and long-term capability with the least strategic damage?
- Which indicator should trigger a decision this week, and which indicators are merely interesting but not actionable?
Sources and date integrity
- S51. IFRS Foundation. IFRS 15 Revenue from Contracts with Customers, 2026. Official source.
- S57. IFRS Foundation. IFRS 15 Illustrative Examples — 2026 issued standards, 2026. Official source.
- S53. Project Management Institute. How to Make Earned Value Work on Your Project, 2026 access. Official source.
- S54. International Organization for Standardization. ISO 21508:2026 — Earned value management in project and programme management, 2026. Official source.
Editorial and professional-use note
This article is educational decision support. It does not replace jurisdiction-specific accounting, legal, tax, regulatory, or investment advice. Forecasts and scenarios are conditional, not promises.