A business can report rising revenue and improving EBITDA while quietly losing the capacity to fund its own growth.

The warning signs are familiar. The order book is healthy, but the overdraft is persistently stretched. Project teams say work is complete, yet invoices remain unraised. Sales agrees longer terms to secure deals. Stock grows faster than demand. Supplier payments are accelerated to resolve operational issues. The finance team produces a cash forecast, but most of the actions required to improve it sit elsewhere.

This is not merely a forecasting problem. It is a conversion problem.

Cash conversion describes the path from committing resources to a sale through to receiving usable cash from the customer. Every avoidable delay along that path acts like an interest-free loan from the business. One late invoice may be immaterial. Repeated across hundreds of transactions, modest delays can absorb the funding intended for recruitment, technology, acquisitions or resilience.

The Cash Conversion Review gives leadership teams a practical way to find those delays. It examines five clocks: terms, fulfilment, billing, collection and inventory or supplier flow. The purpose is not to chase a single headline ratio. It is to identify where time and cash are being lost, why the loss occurs and who has the authority to correct it.

Profit does not pay the bills

Accrual accounting is essential, but it can make the timing problem easy to overlook. Revenue may be recognised when work is delivered, while payment arrives weeks or months later. Margin can improve while inventory, work in progress or receivables consume the benefit. A profitable contract can still create a severe cash trough if the business funds mobilisation and delivery long before billing.

Growing businesses are particularly vulnerable because several pressures arrive together:

  • larger customers request longer payment terms;
  • new offers require stock, specialists or implementation spending before revenue;
  • rapid hiring increases payroll before new capacity is fully productive;
  • operational exceptions grow faster than control routines;
  • sales incentives reward contract value rather than payment quality; and
  • management attention stays on the profit and loss account because growth appears to be the immediate priority.

The wrong response is a blunt cash campaign that protects the month-end number by delaying every supplier, stopping sensible purchasing or pressuring good customers indiscriminately. That may provide temporary relief while weakening service, trust and future margin.

The better response is structural. Leaders should distinguish between cash tied up for a sound commercial reason and cash delayed by unclear terms, poor handoffs, missing evidence, preventable disputes or unowned decisions.

Start with a revenue-to-cash bridge

Before analysing ratios, select a sample of actual transactions and trace them from commercial commitment to cash receipt. Ten to twenty transactions are often enough to expose recurring patterns, provided the sample includes large accounts, recent wins, late payments, disputed invoices, low-margin work and operational exceptions.

For each transaction, record:

  1. contract or order date;
  2. agreed payment and acceptance terms;
  3. resource commitment or purchase date;
  4. delivery or milestone date;
  5. customer acceptance date, if applicable;
  6. invoice-ready date;
  7. invoice-issued date;
  8. contractual due date;
  9. actual receipt date; and
  10. any dispute, credit note, rework or approval delay.

Then calculate the elapsed time between each stage. The exercise turns an abstract working-capital discussion into an operational one. Instead of saying debtor days are high, the team can see that completed work waits nine days for delivery evidence, invoices wait six days for approval, and disputed items sit for three weeks without a named resolver.

This transaction view should be reconciled to the management accounts, aged receivables, inventory or work-in-progress data and the 13-week cash forecast. No single report is sufficient. Ratios show scale, transactions reveal causes, and the forecast shows timing.

The five cash conversion clocks

Each clock answers a different question. Reviewing them separately prevents the leadership team from treating every cash issue as a collections issue.

Clock 1: Terms

The terms clock starts before the sale is signed. It covers deposits, milestone structure, payment days, billing frequency, customer acceptance, cancellation rights, retention, price indexation and any condition that affects when cash can be requested.

Terms often drift because sales teams negotiate within a revenue target but without a visible cost of cash. A 60-day term can look like a small concession when the alternative is losing the deal. It looks different when combined with ten weeks of delivery spending, an acceptance dependency and a history of the customer paying late.

Review the commercial quality of the agreement, not only its value:

  • Are payment terms explicit and consistent with the cost and risk of delivery?
  • Does the contract allow deposits or mobilisation payments where the business commits cash early?
  • Are milestones objective, billable and within the supplier's control?
  • Can the customer delay acceptance because evidence requirements are vague?
  • Is the approval route known before work starts?
  • Are non-standard terms visible to finance and operations before signature?
  • Does sales compensation consider margin, cash timing or payment quality?

A useful lead measure is the proportion of new contract value signed on standard cash terms. The objective is not rigid uniformity. Strategic accounts may justify different arrangements. The discipline is to make the value of the concession explicit and approve it at the right level.

Leadership question: Which commercial promises create the largest cash trough, and did anyone price or approve that consequence?

Clock 2: Fulfilment

The fulfilment clock covers the time from order or mobilisation to a billable event. It includes scheduling, procurement, production, project execution, quality checks, customer inputs, sign-off and evidence of completion.

When this clock runs slowly, the headline may be described as work in progress, backlog or delayed delivery. The operational causes can include poor sequencing, overcommitted specialists, missing customer data, excessive customisation, unclear acceptance criteria or repeated rework.

Leadership teams should separate three forms of delay:

  • Necessary cycle time: the time intrinsically required to deliver safely and well.
  • Commercially chosen time: an intentional investment, such as holding stock to protect a valued service level.
  • Avoidable waiting time: work that is ready but stalled by queues, approvals, missing inputs or unclear ownership.

Only the third category is pure leakage. The second should be tested against the revenue, margin or resilience it buys.

Measures will differ by business. A project-led firm might track work completed but not certified. A product company might track order-to-dispatch time and slow-moving stock. A managed-service business might track onboarding time before recurring billing starts.

Leadership question: Where is completed or nearly completed value waiting for an event that the business can control?

Clock 3: Billing

The billing clock covers the gap between earning the right to invoice and issuing an accurate invoice through the customer's required channel.

This is one of the most preventable sources of trapped cash. Delays can arise because timesheets are incomplete, purchase-order numbers are missing, proof of delivery is not stored, project managers approve billing only once a month, pricing data is held in spreadsheets, or the customer's portal rejects an invoice.

The most useful distinction is between unbilled work that is not yet contractually billable and work that could be invoiced today if the process were functioning properly.

Review:

  • value ready to bill but not invoiced;
  • average days from billable event to invoice issue;
  • first-time invoice accuracy;
  • rejection and credit-note reasons;
  • value awaiting internal approval;
  • customers requiring portals or special evidence; and
  • manual steps between operational completion and billing.

Do not begin with automation. First remove unnecessary approvals, define the minimum evidence and establish clean ownership of customer data. Automation applied to an ambiguous process can simply create rejected invoices faster.

Leadership question: If we have earned the right to bill, what prevents a correct invoice from leaving within one working day?

Clock 4: Collection

The collection clock starts when a correct invoice reaches the customer. It includes confirmation of receipt, due-date management, dispute resolution, escalation and cash allocation.

An aged-debt report is useful but retrospective. A stronger collections process acts before the invoice becomes overdue. It confirms that the invoice has reached the right person, checks that supporting evidence is accepted and identifies disputes early enough to resolve them before the due date.

Segment receivables by behaviour and cause:

  • invoices not yet due but lacking confirmation;
  • due soon and at risk;
  • overdue without dispute;
  • overdue because of a valid dispute;
  • overdue because of internal error;
  • structurally late-paying customers; and
  • balances unlikely to be recovered.

Each segment needs a different action. A blanket sequence of reminder emails will not fix a pricing dispute or missing proof of delivery. Equally, a senior relationship owner should not repeatedly shield a customer from reasonable payment escalation without making the cost visible.

Track promises to pay, dispute age, repeat late payers, root causes and cash received against committed dates. Give commercial owners a role in resolving substantive customer issues while finance owns the collection process and evidence.

Leadership question: How much overdue cash is a customer problem, how much is our own process failure, and who must remove each blockage?

Clock 5: Inventory and supplier flow

For product, manufacturing, retail and distribution businesses, inventory is often the largest visible pool of operating cash. For service businesses, the parallel may be contractor commitments, prepaid licences, work in progress or capacity purchased before demand is firm.

The goal is not the lowest possible inventory or the longest possible supplier terms. Both can damage availability, quality and trust. The goal is an economically sound balance between service, risk, margin and cash.

Review inventory by reason, not only by age:

  • demand-backed stock;
  • deliberate resilience or service stock;
  • excess caused by forecast error;
  • minimum-order or batch-driven stock;
  • obsolete or technically superseded stock;
  • customer-specific stock without customer commitment; and
  • items held because disposition decisions are repeatedly deferred.

Then examine procurement and supplier flow. Are payment terms aligned with the cash cycle? Are early payments earning a worthwhile discount? Are emergency purchases and expedited freight symptoms of weak planning? Are buyers optimising unit price while increasing minimum quantities and working-capital exposure?

For services, examine the same economic pattern in a different form. Does the business reserve scarce contractors months before work is confirmed? Does software capacity grow automatically while usage remains low? Does unbilled work in progress accumulate because scope changes are not agreed promptly?

Leadership question: Which cash commitments protect revenue or resilience, and which compensate for weak planning or delayed decisions?

Score the clocks by value, delay and control

A long list of improvements will dilute action. Score each identified issue against three dimensions:

Prioritise issues with high value and high control. A contractual term affecting one major customer may have high value but low immediate control. It belongs in the renewal plan, not the first-week action list. A daily delay in invoice approval across the entire customer base may be easier to remove and produce faster benefit.

Add two safeguards before approving an action:

  1. Customer and revenue safeguard: Could the action damage a valuable relationship, reduce service or create churn?
  2. Supplier and operational safeguard: Could it transfer unsustainable pressure to a critical supplier or increase disruption risk?

Cash released by creating a larger future problem is not an improvement.

Turn the review into a 30-day release plan

The review should end with no more than five priority actions. Each action needs a baseline, a quantified cash opportunity, an owner, a due date, a lead measure and an explicit safeguard.

Days 1 to 5: Establish the fact base

  • Reconcile receivables, payables, inventory or work in progress to the balance sheet.
  • Trace the transaction sample from commitment to receipt.
  • Quantify ready-to-bill work, overdue debt, disputes and avoidable stock.
  • Identify the largest movements in the 13-week cash forecast.
  • Separate timing shifts from permanent cash release.

That final distinction matters. Collecting an invoice one week earlier improves the current period, but the benefit will repeat only if the process change applies to future invoices. Selling obsolete stock may release cash once. Reducing routine billing delay creates a structural improvement.

Days 6 to 10: Agree root causes and owners

Bring sales, operations, finance and procurement together around the same transaction evidence. Avoid assigning every action to the CFO. Ownership should sit with the leader who controls the root cause.

Examples include:

  • Sales owns the approval rule for non-standard payment terms.
  • Operations owns completion evidence and acceptance readiness.
  • Project leaders own scope-change decisions and milestone certification.
  • Finance owns invoice quality, collection workflow and cash visibility.
  • Procurement owns order quantities and supplier-term discipline.
  • The CEO resolves cross-functional trade-offs and strategic exceptions.

Days 11 to 20: Remove controllable delays

Typical actions might include daily billing rather than a monthly batch, a pre-contract cash review for large deals, a named dispute owner, customer acceptance checklists, earlier purchase-order validation, a stop to automatic replenishment for slow-moving stock, or a supplier-term review focused on high-spend categories.

Choose actions from evidence, not from a generic working-capital checklist. If the largest delay is customer acceptance, sending more collection emails will create activity without cash.

Days 21 to 30: Embed the operating rhythm

Create a one-page weekly cash conversion board. It should show:

  • cash released against the agreed baseline;
  • ready-to-bill value and average billing delay;
  • receivables due in the next 14 days and value at risk;
  • overdue cash by root cause and owner;
  • material inventory or work-in-progress exceptions;
  • actions due, completed and blocked; and
  • customer or supplier risks created by proposed interventions.

The meeting should focus on exceptions and decisions, not a recital of every number. Keep the 13-week forecast as the primary liquidity view, but connect forecast changes to the five clocks so that operational leaders understand what must happen.

The measures that matter

Days sales outstanding, days inventory outstanding and days payable outstanding remain useful. They allow trend and peer comparison. They are not sufficient to manage the work.

Combine outcome measures with lead measures:

The lead measure should describe a behaviour the team can change. If it improves but the cash outcome does not, investigate the assumption rather than adding more measures.

Where technology and AI help

Technology can strengthen the review once definitions and ownership are clear. Useful applications include matching operational completion data to unraised invoices, predicting late-payment risk, classifying disputes, detecting duplicate or anomalous transactions, improving demand forecasts and identifying slow-moving stock.

The business case should be tied to a cash outcome. A prediction model has little value if nobody changes the customer conversation, billing sequence or replenishment decision. Start with one material clock, a clean data set and an owner able to act on the signal.

For smaller businesses, disciplined use of existing systems may create more value than a new platform. Mandatory purchase-order fields, daily exception reports, consistent reason codes and automated reminders can remove significant friction. More advanced tools become useful when transaction volume, complexity and available data justify them.

Five questions for the next leadership meeting

  1. How much cash is tied up between operational completion and invoice issue today?
  2. Which customer or product decisions created the largest cash commitments this quarter?
  3. What proportion of overdue debt is caused by our own errors or unresolved disputes?
  4. Which inventory, work-in-progress or supplier commitments are no longer supported by current demand?
  5. Which three process changes would release cash repeatedly, rather than move it between reporting periods?

If the team cannot answer these questions, the immediate need is not a more elaborate cash forecast. It is a shared view of the revenue-to-cash system.

Cash conversion is a leadership discipline

The quality of cash conversion reveals how well commercial promises, operational delivery and financial control work together.

When those elements are disconnected, finance reports the consequence after cash has already been trapped. When they are connected, leaders can see the cash effect before approving terms, committing stock, accepting custom work or allowing a dispute to age.

The prize is not merely a stronger month-end bank position. Better cash conversion creates strategic capacity. It gives the business more room to invest, negotiate, absorb shocks and pursue growth without surrendering unnecessary control to external funding.

Allington Advisors helps leadership teams identify the operational causes of cash pressure, quantify the most valuable interventions and establish an owner-led improvement cadence. A focused Cash Conversion Review can provide a practical starting point where profit is not translating into sufficient cash.