“……..the claimant must claim and prove his actual interest losses if he wishes to recover compound interest…..The claimant would have to show, if his claim is for ancillary interest, that his actual losses were more than he would recover by way of interest under the statute. In practice………..where the claimant does not have to borrow money to replace the debt, simple interest undersection 35A of the Supreme Court Act 1981 is likely to be the more convenient remedy.”
“94…it is always open to a claimant to plead and prove his actual interest losses caused by late payment of debt. 95. In the nature of things the proof required to establish a claimed interest loss will depend upon the nature of the loss and the circumstances of the case. The loss may be the cost of borrowing money. That cost may include an element of compound interest. Or the loss may be loss of an opportunity to invest the promised money. Here again, where the circumstances require, the investment loss may need to include a compound element if it is to be a fair measure of what the plaintiff lost by the late payment. Or the loss flowing from the late payment may take some other form. Whatever form the loss takes the court will, here as elsewhere, draw from the proved or admitted facts such inferences as are appropriate. That is a matter for the trial judge. There are no special rules for the proof of facts in this area of the law. 96. But an unparticularised and unproved claim simply for 'damages' will not suffice. General damages are not recoverable. The common law does not assume that delay in payment of a debt will of itself cause damage. Loss must be proved. To that extent the decision in the London, Chatham and Dover Railway case remains extant. The decision in thatcase survives but is confined narrowly to claims of a similar nature to the simple claim for interest advanced in that case. Thus, that decision is to be understood as applying only to claims at common law for unparticularised and unproven interest losses as damages for breach of a contract to pay a debt and, which today comes to the same, claims for payment of a debt with interest. In the absence of agreement the restrictive exception to the general common law rules prevails in those cases. 97. The common law's unwillingness to presume interest losses where payment is delayed is, I readily accept, unrealistic. This is especially so at times when inflation abounds and prevailing rates of interest are high. To require proof of loss in each case may seem unduly formalistic. The common law can bear this reproach. If a party chooses not to prove his interest losses the remedy provided by the law is to be found in the statutory provisions.”
“1. For the unlawful use of another’s monetary assets as the result of non-performance of a monetary obligation or of delay of repayment, or their unfounded receipt or economizing, penalty-interest is subject to payment. The rate of penalty-interest shall be determined by the official rate of refinancing of the National Bank of the Republic of Kazakhstan on the day of the performance of the monetary obligation or the corresponding part of it. In case of recovery of a debt by judicial proceedings a court may satisfy a claim of a creditor, proceeding from the official rate of refinancing of the National Bank of the Republic of Kazakhstan on the day of filing the suit or on the day of making a decision. These rules shall be applied unless another rate of penalty-interest has been established by a statute or the contract. 2. Penalty-interest for the use of another’s money shall be recovered until the day of payment of this money to the obligee, unless legislation or an contract has established another procedure for calculating the amount of the penalty-interest. 3. If the losses caused to an obligee by the unlawful use of his money exceeds the sum of penalty-interest due to him on the basis of Paragraph 1 of the present Article, he shall have the right to demand from the obligor compensation for losses in the part exceeding this sum.”