Knowledge group position: also reimbursement of statutory interest on recovery interest paid out of time

X successfully appealed a decision rejecting their application for a refund of recovery interest under the Recovery Act 1990, leading to a court ruling in their favor and subsequent reimbursement.
According to the General Administrative Law Act, statutory interest must be paid on late payments of recovery interest, starting when both the decision period and payment term have expired, marking the recipient in default.
In this case, the default period began fourteen weeks after the request for reimbursement was received and ended the day before the recovery interest was paid to X.