Project cash forecasting with progress billing in Belgium

A profitable construction project can still create cash pressure. Labour and supplier invoices may be paid before a progress claim is approved and collected. A project cash forecast makes that timing visible, so the company can act before a shortfall becomes urgent.

Forecast cash, not accounting revenue

Start with actual bank-opening cash and expected payment dates. Revenue recognition, quoted value and an issued invoice are not the same as cash received. For each project, estimate when a valid progress invoice can be sent, when the client is likely to approve it and when payment is expected under the agreed terms.

Use a weekly view for the near term and a monthly view further out. Record assumptions explicitly. A forecast based on a client payment “this month” is weak unless it has a date and responsible follow-up.

Link progress billing to evidence

Build each expected invoice from measurable progress, contract milestones or the agreed payment schedule. Identify supporting documents and approval steps required before billing. If the architect or client must approve quantities, include that lead time.

Separate confirmed billable work from optimistic future progress. This avoids using a best-case site plan as though it were an approved receivable.

Add committed and expected outflows

Include payroll, subcontractors, purchase orders, rentals, insurance, tax and other project-related payments. Use supplier due dates, but consider legitimate disputes and agreed payment plans separately. Map large material deposits and retention releases to their expected dates.

Account for VAT timing with the company’s accountant. Belgian VAT and invoicing treatment depends on the transaction and circumstances; a cash model should use the business’s verified filing and payment calendar rather than a generic assumption.

Model delays and scenarios

Create a base case plus a delayed-receipt scenario for the largest or least certain payments. Ask what happens if a progress approval moves by two weeks, a client pays late or a supplier deposit is due earlier. Scenario planning is more useful than pretending one date is guaranteed.

Set triggers for action: send missing evidence, resolve a disputed quantity, chase an overdue invoice, renegotiate a purchase date or adjust discretionary spending. Assign an owner to each action.

Reconcile forecast and reality

Update the forecast at a fixed weekly time using bank movements, issued invoices, approved claims and new commitments. Compare predicted dates with actual dates and record why they differed. Repeated approval delays may show a documentation problem; repeated supplier surprises may show incomplete purchase-order capture.

Keep project forecasts connected to the company view. One project’s incoming cash may fund another project’s payroll, so leadership needs both detail and the combined position. The forecast supports decisions; it is not a guarantee or financial advice.

See Enfin’s pricing or contact the team to discuss project and invoice visibility.