Why it matters

A profitable contract can still fail when money leaves before certified payments arrive. Labour, deposits, imported equipment, subcontractors and tax obligations follow different timing. A smooth monthly curve hides the peaks created by mobilisation and long-lead procurement.

Planning the work

Build the forecast from the accepted programme and procurement schedule. Separate expected valuation, certification and receipt dates, then include retention, advance recovery, guarantees and known payment conditions. Scenario testing should show the effect of a delayed certificate or a critical supplier demanding earlier payment.

Evidence on site

Update the forecast with actual progress and commitments, not only invoice totals. Reconcile quantities with the cost report and investigate changes in productivity, material prices or subcontractor claims. Optimistic progress should not be used to solve a cash gap on paper.

What happens after construction

Use the forecast to make early decisions about sequencing, credit, procurement and client communication. At close-out, account for defects obligations, final measurement and the timing of retention or guarantee release.

Editorial note

This article provides general construction information and should be read with the current law, contract, approved design and project-specific advice from the responsible competent professionals.

What we will track next

The strongest follow-up to Cash-flow forecasts should follow the construction sequence is an auditable chain from decision to outcome. Scope, authority, quotation, approval, delivery and payment should agree, with changes recorded while the work is active.

Commercial records are project controls, not end-of-job paperwork. A current programme, cost forecast, instruction register and payment history let the team address risk early and give reviewers evidence for the final account.

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