Two payment clocks: JBCC certificate and the state thirty days
South Africa has no security of payment statute for private work. The payment period lives in the contract. On public work a separate rule applies, thirty days from invoice under the PFMA. Know which clock you are on.
QScope Team · 6 February 2026 · 6 min read
There is no Construction Act in South Africa. No statute imposes a payment timetable on a private building contract, and adjudication is a contractual step, not a statutory right. That means the payment period is whatever the contract says it is, and you have to read it rather than assume it.
The JBCC clock
On a JBCC contract the payment period runs from the interim payment certificate. The principal agent certifies, and the employer pays within roughly fourteen days of the certificate. The trigger is the certificate date, not the date the contractor applied and not the date the work was done.
Because the period is short and the trigger is a specific document, the day the certificate is issued matters more than anything else in the cycle. Get the certificate late and every downstream date moves with it.
The government clock
Public sector work carries a separate rule. Under the Public Finance Management Act and Treasury Regulation 8.2.3, an organ of state must settle a valid invoice within thirty days of receipt. This is a payment discipline on the state, not a private contract term, and it runs from the invoice rather than from a certificate.
On a state job you can therefore be tracking two things at once, the certificate under the form of contract and the thirty day statutory window on the invoice that follows it. The one that binds is the one that comes later in practice, so diary both and chase against both.
Everything is counted in calendar days
Both clocks run on calendar days. Weekends and public holidays are inside the count, not excluded from it. That is the opposite of the working day habit many surveyors bring from other jurisdictions, and it is where deadlines get missed.
Fourteen calendar days from a Friday certificate is not fourteen working days. Count it as calendar days from the day after the trigger and the real due date is earlier than instinct suggests. Count it wrong and the chase starts after the money was already late.
Other forms, same question
JBCC is not the only game. NEC, FIDIC and the GCC 2015 all appear on South African projects, and each carries its own payment period and its own trigger. The discipline does not change with the form. Find the clause, find the trigger, count in calendar days, diary the due date.
The habit
The moment a contract is signed, record two things: which form governs the payment period, and whether the PFMA thirty day rule sits over it. Everything after that is counting, and counting is only safe when you know which clock you started.
QScope reads the payment period off the contract, counts the calendar days from the certificate or invoice date, and shows the day the money is due.