Kuwait Court of Cassation principle number 536

Default interest - its accrual on a debt owed by the debtor that has fallen due and has not been paid - the requirement to calculate it from the due date - the reason for this: it constitutes compensation for delay in paying a commercial debt, which causes harm merely by occurring. - A debt that has fallen due - what is meant by it - a debt of a known amount at the time the obligation arises, which the judiciary has no power to assess. - A debt based on established foundations between the parties - is of a known amount at the time the obligation arises even if the debtor disputes its amount - the reason for this. - 102 - Commercial