The cost of interest, whatever it secures, is fundamentally the time cost of money and does not itself represent a lasting or enduring asset. The payment for goods, land, shares, trading stock, etc. will usually result in the conversion of the money paid into an asset : the asset represents the money which it replaces and may, at least in principle, be converted back into money. That is not the case with interest : it is paid for the time use of capital and, like time itself, disappears. Interest is the paradigm example of a revenue expense.
maintenance