Existence of a deductible temporary difference (paras. BC39-BC45)
BC39 In the case of many debt instruments, the collection of the principal on maturity does not increase or decrease taxable profit that is reported for tax purposes. This is the case in the example illustrating paragraph 26(d) of IAS 12. Interest is paid at the contractual rate each year, and on maturity of the debt instrument the issuer pays the principal of CU1,000. In this example, if the investor continues to hold the debt instrument, the investor only pays taxes on the interest income. The collection of the principal does not trigger any tax payments.
BC40 Because the collection of the principal does not increase or decrease the taxable profit that is reported for tax purposes, some thought that the collection of the principal is a non-taxable event. Sometimes, tax law does not explicitly address whether the collection of the principal has tax consequences. Consequently, proponents of this view thought that a difference between the carrying amount of the debt instrument in the statement of financial position and its higher tax base does not give rise to a deductible temporary difference, if this difference results from a loss that they expect will not be realised for tax purposes.
BC41 Those who held this view thought that the loss would not be realised for tax purposes if the entity has the ability and intention to hold the debt instrument over the period until the loss reverses, which might be until maturity, and it is probable that the entity will receive all the contractual cash flows. In this case, differences between the carrying amount of the debt instrument in the statement of financial position and its tax base reverse over the period to maturity, as a result of continuing to hold the debt instrument.