A cash flow forecast will be required to ensure sufficient funds are on hand to make progress payments as they fall due. (teachermagazine.com.au)
More precisely it means the total payment: the contract or industry practice or law (e.g. building and construction) may mean this will be paid in several progress payments. (law.stackexchange.com)
Representation of construction manager client and defeated owner bankruptcy trustees preference claims seeking the return of progress payments and retainage, obtaining voluntary dismissal of adversary proceeding in favor of client. (rc.com)