Forecasting cash, around the 56 day lag

Cash flow on a Qatar FIDIC project is not mysterious. The contract sets the payment timing precisely, so the gap between spending money and receiving it can be modelled rather than feared. On the scale of Doha infrastructure work, getting that model right is the difference between a job that funds itself and one that quietly eats working capital.

Start from the lag

The core of the forecast is the delay between value earned and cash received. Work is executed through a valuation period. The Statement goes in. The Engineer certifies within twenty-eight days under Sub-Clause 14.6. The Employer pays within fifty-six days of the Statement under Sub-Clause 14.7. So value earned in a given month is not cash until roughly two months after the Statement that captures it, and longer for the work done early in the period.

What goes into the curve

• Earned value by period. The measure you expect to certify each cycle, built from the programme and the resource, not from hope.
• The payment lag. Push each period earned value forward to the Sub-Clause 14.7 payment date to get the cash-in line.
• Retention held. Deduct retention under Sub-Clause 14.3 as it accrues, then bring it back in two steps: half at Taking-Over, half at the end of the Defects Notification Period.
• Advance payment. Where the contract provides one, model the cash in at the start and the repayment deductions from later certificates, so the curve shows both the early boost and the later drag.
• Cash out. The wages, subcontractor payments and materials that fund the work before it is certified.

The shape to expect

Most FIDIC jobs run cash-negative through the early and middle stages, because the lag means you are always funding one or two periods of work that has not yet been paid. Retention deepens the trough, since a slice of every certificate is held back. Advance payment softens the start but has to be repaid, so it moves the low point rather than removing it. The curve usually recovers around Taking-Over, when the first half of retention releases, and closes out through the final account.

Why the forecast has to be live

A forecast built once at tender and never touched is a decoration. The value that matters is updated: each certified IPC replaces a forecast figure with an actual, each slipped Variation moves cash to the right, each delay to Taking-Over pushes the retention release back. On a Qatar job with no statutory payment scheme to accelerate a slow Employer, the forecast is also an early-warning system. If the cash-in line keeps landing later than the Sub-Clause 14.7 date predicts, the contract is being breached, and the forecast is where you see it first.

Turn timing into a number

The FIDIC deadlines give you the timing for free. The work is to attach realistic value to each period, apply the lag honestly, and fold in retention and any advance payment. Do that and the funding requirement becomes a figure you can plan around instead of a shock you react to.